US2433453A - Pendulum escapement coin-controlled parking meter - Google Patents

Description

Dec, 30, 1947.

W. J. HERSCHEDE: ET AL PENDULUM ESCAPEMENT COIN-CONTROLLED PARKING METER Original Filed May 27, 1938' 5 Sheets-Sheet l fill-.ll-IIIIIIIIIIIJIJ Q- 30, 1 w. J. HERSCHEDE ETAL 2,433,453

PENDULUM ESCAPEMENT COIN-CONTROLLED PARKING METER Original Filed May 27, 1938 5 Sheets-Sheet 2 INVENTOR Flg I mum! f0) $4M;

. WALTH? I l/IMMM 1v waaoe r TH E (Q ATTORNE 1 w. J. HERSCHEDE ETAL 2,433,453

PENDULUM ESCAPEMENT COIN-CONTROLLED PARKING METER Original Filed May 27, 1958 5 Sheets-Sheet 3 Dec. 30, 1947.

W. J. HERSCHEDE ETAL PENDULUM ESCAPEMENT COIN-CONTROLLED PARKING METER- Original Filed May 27, 1938 5 Sheets-Sheet 5 gwue/wkw WILL/AM For HERSCHEDE WALTER J. HERscHEDE WILL/AM N. WOODRUFF Patented Dec. 30, 1947 OFFICE PENDULUM ESCAPEMENT COIN-CON- TROLLED PARKING METER Walter J. Herschede, Cincinnati, William Foy Herschede, Forestvi le, and William N. Woodrufi, Cincinnati, Ohio, assgnors to International Vehicular Parking, Ltd, a corporation of Delaware Original application May 27, 1938, Serial No. 210,504, now Patent No. 2,289,838, dated July 14, 1942. Divided and this application March 10, 1942, Serial No. 434,138

3 Claims. (Cl. 16115) This application for patent is a division of our 1 copending application Serial No. 210,504, filed May 27, 1938, entitled Parking meter and coin slot therefor, now Patent 2,289,838 of July 14, 1942,

and the invention relates to parking meters of 9 the general character adapted for mounting or positioning at intervals along roadways or streets, and which includes timing mechanism and coincontrolled apparatus cooperating with the timing mechanism, for initiating operation of the timing mechanism of the parking meter.

An object is to effect certain improvements and simplifications in the timing mechanism whereby to obviate certain objections heretofore encountered in previously used devices intended for the same or similar purposes.

This and other objects may be attained by the means described herein and illustrated in the accompanying drawings, in which:

Fig. l is an elevational view showing one side of a device embodying the invention and mounted on a customary standard.

Fig. 2 is an enlarged fragmental sectional view on line 2-2 of Fig. 1, showing the front wall only.

Fig. 3 is an enlarged fragmental sectional View of the device showing the rear wall only.

Fig. 4 is a rear View of a plate forming a detail of Fig. 3.

Fig. 5 is a side view of the plate shown in Fig. 4.

Fig. 6 is a sectional view of the structural details of the releasable attachment means used for securing the plate to the housing.

Fig. 7 is a fragmental detail of a spanner wrench used incident to attachment and detachment of the plate.

Fig. 8 is a view of a movable shutter forming a detail of the invention and which controls access to the winding stud of the clock mechanism housed within the casing and forming a detail of the invention.

Fig. 9 is a view of a locking bolt of a key controlled lock for controlling detachment of a plate or panel controlling access to the interior of the housing, the locking bolt being associated with the shutter shown in Fig. 8, whereby to actuate the shutter from the key controlled lock.

Fig. 10 is an end view of the associated parts shown in Figs. 8 and 9.

Fig. 11 is an elevational view of the clock mechanism disposed within the casing, and showing that side thereof that is exposed at that portion of the housing shown in Fig. 1, when the detachable door or panel, shown in Fig. 1 is removed.

Fig. 12 is a detail view of parts shown in Fig. 11.

Fig. 13 is a view of parts shown in Fig. 11, but observed from the rear of the mechanism shown in Fig. 11.

Fig. 14 is a view of the mechanism shown in Fig. 11, but observed from the rear thereof, part of the coin slot mechanism having been removed.

Fig. 15 is an elevational view of part of the coin slot mechanism, absent from Fig. 14. I

Fig. 16 is a rear view of the part shown in Fig. 15.

Fig. 17 is a View similar to Fig. 16, but showing parts thereof in changed positions, incident to introduction of a coin into the mechanism. 7 Fig. 18 is an elevational view of part of a unit of the coin slot mechanism. shown in Fig. 14 and underlying a face plate, which has been removed but which is indicated in dotted lines.

Fig. 19 is a view of parts shown in Fig. 18, looking at the right side thereof, or turned at an angle of ninety degrees. i:

Fig. 20 is a view similar to Fig. 19, parts being omitted. and showing positions assumed by parts thereof incident to introduction of a coin therein.

Fig. 21 is an enlarged top View of parts shown in Fig. 18. I

' Fig. 22 is a fragmental elevational View of parts of a coin chute forming a detail of the inven tion.

Fig. 23 is an enlarged plan view of the device shown in Fig. 14, parts being omitted.

Fig. 24 is a diagrammatic view showing the gear train forming a detail of the invention.

Fig. 25 is a detail elevational view of parts of the signal control means forming details of the invention.

Fig. 26 is a sectional View on line 26-26 of Fig. 23.

Fig. 27 is a sectional view on line 2l2l of Fig. 23.

Fig. 28 is a fragmental end elevational view of parts shown in Fig. 11.

Fig. 29 is a perspective View of the mechanism shown in Figs. 12, 13 and 23, parts being omitted.

Fig. 30 is a perspective exploded view of the structure of Figs. 18 to 21 inclusive.

Like reference characters denote like parts throughout the several views of the drawings.

Considering now more particularly a device in accordance with our invention, attention is directed to the drawings. In referring to parts of the device (see Figs. 1, 2 and 3), reference will be made to the face 3% of the casing or housing as the front of the device and the opposite outer face 32 thereof will be referred to as the of the casing, by way of the said large opening" 33, permits access to the instrumentalities' that control attachment and detachment. of a coin.

slot cover plate 55 (see Fig. 3) which serves as a detachable closure or panel for the opening 36 in the rear face or wall 32 of the housing- 3-|-. The detachable panel or plate 35 permits readyaccess,

to authorized persons, to the coin slot mechanism:

for servicing same as may be necessary from time to time by reason of introduction of articles and substances, other than coins, into the coin slot mechanism and which may interfere with proper functioning of the coin slot mechanism. A detailed explanation of the mounting of the coin slot cover plate will be given later.

The front wall of the housing, in additionto said'large opening 33, is provided with a smaller opening 37 for which a hinged door 38 is provided. The hinged door controls access to the lower portion of the internal chamber 45 in the housing and in which section of the internal chamber, the coins are collected and from which an authorized person may remove same, without disturbing any other parts of the device. Suitable lock controlled means are provided at 39 and 40 for ""t-I011ihg access by way of the panel 34 and door 38. to the interior of the housing or casing 3 Suitable bolts 4| and 42, associated with customary drums of key controlled tumbler type locks, are provided for bolting or locking the panel and door to the casing wall adjacent such panel and door.

The bolt 4| is so connected to a shutter 43, mounted coax al with the drum of lock mechanism 39 (see Figs. 1, 2 and 8), that the shutter moves or oscillates with the drum or key employed therewith, such shutter serving to open and close an aperture 44 in panel 34 and through which aperture a key may be inserted for winding the clock spring of the mechanism contained within the chamber 45 in housing 3|. As here shown (see Figs. 2, 9 and 10), said connection comprises pin 14, carried by bolt 4| and extending into aperture 15 in shutter 43 (see Fig. 8). From this, it is to be understood that a suitable winding stem 46, associated with the meter mechanism is aligned with said aperture, in the complete or assembled device. The lock mechanism maybe mounted on panel 34 in any suitable manner, for example, nut 76 may secure the stationary part of the lock to the panel, in accordance with customary practice.

The panel 34 (see Fig, 1), for the large opening in the front wall of the casing, is provided with means additional to the lock 39 and cooperating with the lock for detachable mounting of the panel in the opening 33. A pair of screw bolts 5| are threaded into lugs 47 (see Fig. 2) carried by the panel 34. The lugs are each adapted to have their respective upper ends 49 positioned over the inner face of the flange 52 of casing wall 30, so that by drawing the lugs toward the panel, the said peripheral flange or edge 52 of the wall, about said opening, is clamped between the panel and the lugs. Preferably, each of the bolts 5| associated with the lugs 41 and 48 is provided with a polygonal socket 316 for receiving a suitable complementary wrench, not shown, for rotating the bolts. A pin 13, carried by panel 34, guides its associated lug. A suitable sealing and cushioning washer 53, of rubber or like material,

is' positioned in the recess or pocket into which the panel 34 fits, when secured to the housing wall 30.

The coin slot cover plate 35 (see Fig. 3) is received in arecess or pocket 54, provided with a sealing and cushioning washer 55. The pocket is formed'by providing a peripheral flange 55 about'the opening 36 in the rear wall of the casing. The plate 35 has at its lower edge, one or more lugs.5'| (see also Figs, 4 and 8) the free ends of'which lugsmay be introduced into the opening 36-and which lieupon the inner face of the flange 56 or rear wall. The upper end of the plate 35 carries'one or more studs 58. The studs are round (see Fig. 6) and each has a chord-like slot 11 each of which serves as a pocket for receiving one end' of' a washer-like locking member 59 rotatably mounted onthe inside face of an apertured' plate 18' mounted on the rear wall of the casing. Each of'the lugs is received in such aperture or opening 19 and projects therethrough so as to expose the slots in the studs to the locking members 59. The locking members are chamfered as shown at 80. The locking member 59 is provided with a pair of diametrically disposed sockets or pockets 6!], into which the teeth or lugs 5| on the end of a spanner wrench type of tool 62 may enter, and the toothed end of which tool may be inserted into the chamber by way of the large opening 33 for rotatably actuating the locking rings or member 59.

Windows 63 and 64 (see Figs. 1 and 3) are provided at the front and rear of the device, and through each of which a signal device or flag 65, 66 is observable. The one window is provided in the panel 34 and the other is provided in the casing wall. The signals are adapted to cooperate with various other parts of the meter mechanism in a manner, for purposes explained later A suitable shank 61 is formed at the lower end of the housing 3|, whereby to permit mounting of the device on a suitable standard, in any suitable manner.

The inside portion of the rear wall of the casing (see Fig. 3) includes mounting studs 68, having threaded bores therein, and by means of which the frame 69 of a meter mechanism (see Fig. 11) may be bolted or otherwise mounted within or secured to the casing, by the threaded bolts 10. The bolts 10 extend through suitable apertures in the frame 69 and cooperate with the casing as indicated.

The meter mechanism comprises a clock mechanism which may be of any suitable construction. Essentially it comprises a spring motor, an escapement and a suitable gear train. Means are provided whereby the clock mechanism may be rendered operative upon introduction of a proper coin or token into the device and also for rendering the clock mechanism inoperative after a determinable period of time, as well as for actuating the signals and signal operating parts from the clock motor.

As exemplified herein (see Figs. 11 and 23), the referred to means and mechanisms in accordance with customary clock structures, comprises the frame 69. The frame in turn comprises a front plate TI and a rear plate 12. The terms front plate and rear plate are used in the same sense in which the opposite apertured walls of the casing were called front and rear walls. Thus, the front plate 'II is disposed adjacent the front wall of the casing and the rear plate I2 is disposed adjacent the rear wall of the casing, and the front plate 'II is exposed when the panel 34 is removed from the casing. Accordingly, the escapement mechanism, shown generally at 8|, and the time adjustment and control means, shown generally at B2, are available for servicing or other attention, merely by removal of panel 34.

In like manner, removal of coin slot cover plate 35 from the back of the casing renders the various mechanisms including the coin slot, mounted on the rear plate I2, available for like attention. It will be pointed out, that the coin slot, as well as other mechanisms are so associated and related to one another and to the rear plate I2, that they may be attached and detached, as units, through the opening in the rear wall of the casing, thus permitting expeditious servicing and replacement of parts, operation of which may be impaired by the insertion of 'various articles by mischievous persons.

The front and rear plates (Fig. 23) are held in spaced relation by customary means, for example, suitable studs such as 83, with which suitable screws 849 cooperate, in accordance with customary practice. The upper ends of the plates, at the outer corners thereof are secured to inverted T-shaped brackets 94 and 85 (see Fig. 11). The brackets serve as supports for the shaft or axle 85 for the signals 65 and 69. Each signal comprises a white plate or panel and a red plate or panel. These panels are so related and connected that while the signals may move about the horizontal axle or axis 86, the signal panels of identical color are exposed at the windows at the front and back of the casing. The plates or panels 81, 89, 89 and 90, are graduated to indicate periods of time, and are adapted to cooperate with an indicator 9| (see also Fig. 14) comprising a pair of fingers 92 and 93, for showing the elapsed time of meter operation (see Fig. 29), When the established period of parking time has elapsed, the red panels are moved to positions adjacent the fingers for visibly indicating that the parking time is being exceeded. At other times, during operation of the device, the white panels are positioned adjacent the fingers. This matter of two color signals and their operation, as generally related will be explained in more detail hereafter. It is in order, however, to state the movement of the signals on their axis is accomplished (see also Fig. 28) by means of linkage including a bracket 99 secured to axle or shaft 86 and link 95 having at its upper end a pivoted connection with bracket 94 in offset or eccentric relation to the axis of axle or shaft 85. The lower end of link 95 is connected with a lever I99, of suitable actuating mechanism, explained later (see Fig. 29), for synchronized operation of the signals with the other parts of the meter mechanism.

In Fig. 24 is shown, rather diagrammatically, the gear train, spring motor and cooperating parts for actuating the indicator 9!, including the one spaced finger 92 thereof. The indicator fingers 92 and 93, supported by indicator arm 9i, straddle the signals 95, 99 (see Fig. 28).

The spring motor winding stem 99 (see Figs. 11 and 23) is associated with the customary clock spring barrel, ratchet, etc., whereby the wound spring within the barrel 95 operates a gear train indicated generally at 91, the last element 8| of which is any one of various customary escape- 7 meter mechanism frame.

merits, shown in detail in Fig. 11, Coupled with the gear train (see also Fig. 29), is a pair of gears 98 and 99. These gears 98 and 99 are mounted on the same shaft or axle I99 and are identical, except that one gear is loose on the shaft and the other is fixed to the shaft. The two gears 98 and 99 may be locked together and for that purpose there is provided an idler gear I9 I. The idler gear IllI is rotatably mounted on a pivoted lever I02, and falls into engagement with gears 98 and 99 under the action of gravity, the positioning of gear I0! and its supporting lever being actuated from the motor train in a manner that will be explained. As exemplified herein, the gear 98 is fixed to shaft I90, as is also the gear I93. The gear 99, integral with gear I94 is loose or freely revoluble upon shaft I90, except when the idler gear Ifll is in mesh with it, and at which time the gears 98 and 99 are locked for movement together. The gear I94 receives power from gear I95 in power train 91. The gear I93 (see Fig. 29) and the gear 98 are fixed to shaft I99. Gears I04 and 99 are fixed together on a hollow shaft rotatable on shaft I'IJI. Gear I93 is engaged by the gear segment I06 carrying the indicator 9|. A pin l0! (see Fig. 29), carried by gear segment :99, is adapted to actuate a lever I 98 (see also Figs. 23 and 25) which is pivoted on the axle or shaft I09 and on which shaft the segmental gear IE6 is fixedly mounted. The end of lever 598, remote from the end thereof that is adapted to contact pin I97, is pivotally connected to the link 95 of the signal (Figs. 11, 23 and 28). The said pivotal connection is effected by means of a bearing pin H9 carried by the angularly turned end I. of lever ['08 and the bearing pin extends through a suitable aperture in the link 95 and a cotter pin or the like inserted in the transverse aperture II 2 in bearing IIU prevents separation of the link 95 and lever I98. The signal is weighted so that it will return, under the influence of gravity, to its normal position, in which the red panels are disposed at the windows in the device, a position signalling improper parking of a vehicle. The pin IN is so positioned on the segmental gear, that in setting the indicator to initial position in actuating the device, the pin will actuate the lever for moving the signals so the white signal panels are disposed adjacent the windows. A pin II3 on the lever will be received by a spring actuated catch H4 to hold the white signal panels into position until released upon expiration of allotted parking time, as more particularly noted hereinafter, the catch then controlling release of the signals so they may move under the influence of the weight associated therewith, for returning the signals to normal position.

The pin II3 carried by lever I98 is angular in cross-section (see Fig. 25) and is adapted to cooperate with a hook-like catch or holding member II4 (see also Figs. 23 and 29) The catch H4 is pivotally mounted between the front frame plate II and an intermediate plate H5 carried by the The catch H4 is secured to a shaft IIB, loosely journaled in the frame plates H and II 5. Also secured to said shaft I I6 is an arm II'I carrying a pin H8. The pin extends through an opening 390 in the frame plate II (see Fig, 11) and is acted upon by a lug H9 of the time adjustment plate I29 upon the indicator 9! reaching a point denoting the expiration of an allotted parking period. The associated arm Ill and catch H4 are then lifted (Fig. 25) to release pin H3 and permit upward movement of arm H and a consequent return of the red signals to signalling position, as appears more fully below. Plate I may be adjusted arcuately upon the shaft I39, to which shaft (Fig. 23) the indicator 9% and segmental gear I95 are fixed, in order to set the device for different parking periods, twenty minutes, as in front of banks, or one hour, as in most places where the meters would be located. The adjustment of the plate I 20 is eifected by means of an arcuate slot I2I in the plate I23, through which a set screw I22 extends, the set screw being threaded into a collar I23 secured to shaft I E29. Suitable graduations I24 on the frame plate, cooperate with pointer or index finger I on the adjustment plate I20, to mark the setting of the time interval between movement of the signals from abnormal or operating position (proper parking of a vehicle), at which time the white panels are disposed at the windows, to normal or non-operating position (improper parking of the vehicle), at which time the red panels are so exposed or positioned.

The pin I I3 (Figs. 23 and 29) is actuated by the lug II9 for turning the catch I14 on its axis, for releasing the pin H3, thus freeing the lever and the signals to respond to the gravity influence of the weighted signals. The spring I26, yieldingly holds the catch in position to receive and hold the pin IE3. The spring also yieldingly urges the pin H8 toward the lug H9. The pin H8 and catch IE4 are so related to one another and to the pin H3 and the lug H9, that only a limited arcua'te movement of the catch and pin H8 is possible before one or the other of said members II 4 and II 8 contact either the pin H3 or lug H3. Movement of indicator 9| to an initial position is had through the action of the coil spring I2? and collar I28 mounted on shaft I09 to which indicator 3i and its gear I36 are rigidly secure. This resetting of the indicator under spring action is permitted by the free turning of gears I23 and 99 when the idler gear IDI is lifted, incident to initiating operation of the meter mechanism. Any suitable arrangement for attaining the indicated function may be employed. As shown herein, the coil spring I21 has its one end secured to shaft IE9 (see Fig. 23) and its other end is anchored to the frame plate I! by means of a pin I39. The spring I2! is wound or tensioned as the indicator is moved at timing rate under the influence of the main spring motor 96, acting through the gear train I83, I55 and gear segment I36 (see Fig. 24).

The pin H8 is adapted to contact a pivotally mounted lever I 23 (Figs. 23 and 13) that is provided to serve as a detent for end I34 of a lever I3I action to stop escapement mechanism I32 as noted below. Also pin II 8 rides on lug II 9 of the time adjustment plate I26 and thus takes the train off gear I36 and indicator 9| due to spring motor 95, shaft 533, and associated gear I03. This, of course, relieves the strain on the escapement mechanism. Lever I 29 and associated parts, as more fully expained below, also positively assures operation of the clock mechanism. The lever 529 is (see also Fi 29) pivotally mounted on stud shaft 339 carried by frame plate II, and the free end thereof is notched or stepped so as to provide a detent I36 for cooperation with a pivotally mounted lever I3I, the lower end I34 of which lever I3I (Figs. 11 and 12) is adapted to contact the escapement member I32 for holding one of the pallets thereof in contact with the escapement wheel I33. At such times as the lever I3I contacts the vibrating escapement member I32, the pendulum I35, which is fixed in relation to the vibrating member I32 is held in an off center or unbalanced position, as shown in Fig. 12. The detent structure of lever I29 (Fig. 13) is operative for holding the lever end I34 out of engagement with the vibrating member I32 (see Fig. 12). In the normal or inoperative condition of the device, the lower end I34 of lever I3I is positioned above the heel I39 of the lever I29. In order to withdraw and withhold the lever I3I from contact with the vibrating escapement member I32 and permit operation of the clock mechanism, the lower end of lever I3I is moved into the detent I36 (see Fig. 13). When the lever I29 is lifted by the pin H3, the lever end I34 passes beneath the detent, by reason of the action of sprin I31, and contacts the vibrating member I32. The upper end I38 of lever I 3| is disposed in the path of pointer 92 secured to indicator 9|, as the indicator pointer shown in Fig. 11, is moved to the right hand end of its course. Inasmuch as the lug II9 moves with the indicator, the pin H8 is free to move downwardly under the influence of spring I26, and the detent carrying portion of lever I29 is urged downwardly by the action of spring I31, wherefore, when the indicator 9| contacts lever I 3|, the lower end of lever I3I is lodged in the detent in lever I29. Such action is accomplished very quickly and the pendulum is released to the influence of gravity and movement thereof and starting of the timing mechanism is positively assured.

The clip I46 (see Fig. 11) is provided to secure the pendulum While the device is in transit or in storage,

The idler gear IIJI (see Figs. 23 and 29) is the instrumentality which looks or joins the spring motor power train and the various parts, including the indicator SI, and which parts are interrelated and interdependent as previously explained. When the idler gear is released from its normal function of joining the gears 98 and 99, the indicator may be manually moved back and forth as desired in adjusting the device, and consequently, when, in the intended functioning of the device, the idler gear is moved to release or inoperative osition, the indicator is free to respond to the action of the spring I21 and to cause such coaction of the various other parts, that the clock mechanism is rendered operative, the signals are actuated, etc., wherefore the meter is set in operation for its intended purpose or function of timing the parking period for which a r person is obliged to insert a proper coin into the device.

Momentary release of the idler gear is' sufficient to accomplish the indicated conditioning of the device.

The release of the idler is accomplished by releasing the lever I02 (see also Figs. 11 and 14), so the force of the spring motor, operating through gear 99, will force the idler gear away from the gears 98 and 99, thus freein the gear 98 and permitting the spring I 21 to move the indicator and initiate operation of the escapement, as previously explained.

The lever I02, carrying idler gear IIH is pivotally mounted on shaft I 4I The upper end of lever I92 is offset as shown at I42 (see Fig. 23) and carries a pin or stud I43 disposed above and adapted to cooperate with trip lever I45 (see also Figs. 14 and 29) of a trip mechanism that is actuated incident to introduction of a coin into the device. A suitable stop pin I44 or the like, limits the extent to which the lever I02 may move toward the gears 98 and 99 and consequently serves to assure positioning of the idler gear for proper cooperation with the gears 98 and 99 when serving its indicated looking or joining function.

The trip mechanism for controlling the idler gear (Figs. 14-. and 29) comprises a lever I45 loosely mounted or journalled on shaft I48. Movement of lever I45 on shaft I48 is limited by an arm I41 (Fig. 23) fixed on shaft I48 and having 9, lug I48 thereon extended over the arm I49 of lever I45. The springs I58 and I53 yieldingly urge the lever arm I49 toward the lug I48. The spring I58 has one of its ends disposed beneath the lug II on lever arm I41, and after a number of turns thereof about the shaft I48, has its other end formed about the second arm I52 of lever I45. The arm I41 and spring I58 are used as a safety device, in View of the speciflc coin slot shown herein, to prevent tripping or release of the meter mechanism by insertion of articles, other than a proper coin, for example, a long, thin piece of steel, into the coin slot for the purpose of initiating operation of the timing mechanism. Also the arrangement of arm I41 and spring I58 with lever I45 permits manual release of the idler ear, as in adjusting the device, without operation of the coin slot mechanism. This feature is of benefit in assembly and servicing and at which time the protecting casing or housing 3I permits ready access to the lever I45. With other types of coin slots, the spring I58 and arm I41 may be dispensed with. The

trip lever arm I49 (see also Fig. 11) has a detent I83 in which the pin I43 of the idler gear lever I92 is received and held, for holding the idler gear in engagement with gears 98 and 99. The extreme outer end of the lever arm I49 is hooked upwardly to prevent movement of the pin I43, laterally beyond the lever arm I49. The lever arm I49, outwardly of said detent I83 is so shaped, see at I84, that the pin I43 will readily locate in the detent incident to normal operation or movement of the parts. The pin I43, therefore, serves as means limiting the upward movement of lever arm I49.

The safety device comprising the spring-actuated arm I41 is able to move upwardly, away from the trip lever arm I49, for a slight distance, whereby to permit positioning of some of the coin slot mechanisms in positions for attaining the indicated safety feature. In instances where the safety feature is not considered necessary, the arm I41 may be dispensed with, and trip lever arm I49 is fixed directly to the shaft I48, instead of being indirectly connected thereto and actuated thereby, through the member I41.

Incident to operation of the device from the coin slot, it should be observed that the shaft I99 (see Fig. 23) on which the indicator 9| is fixed, also has fixed thereto an arm I54, which, when the indicator i restored to its initial position, upon starting the device by deposit of a coin and resultant lifting of pin I43 and idler gear IN, is adapted to contact a pin I55 associated with a coin trap mechanism (see also Figs. 19, 29 and 30), forming a detail of the coin slot mechanism.

For the purpose of explaining the coin slot mechanism and the lifting of arm I49 to actuate the resetting of the device as noted above, the description will follow the course of a coin as it is inserted in the device, until it has caused the coin slot mechanism to trip or release the idler gear Hill.

The coin slot cover plate 35 (see Fig. 4) has an opening I56 therein, and through which a coin is to be inserted into the device. Upon the inside face of the plate 35, and surrounding the opening, is a suitable cushion or Washer for bridging the space between the plate 35 and a coin slot plate I51 (see also Fig. 15) detachably mounted by screws or the like upon suitable studs or standards I58 carried by the rear frame plate 12. A coin receiving slot I59 is formed in the plate I51. The slot I59 is large enough to permit slight clearance for a coin of proper denomination to be inserted.

Upon the rear face of plate I51 (see Figs. 16 and 17) are mounted various parts that yieldingly close the aperture I59 in plate I51 and which aperture is exposed through the opening in cover plate 35 so a coin inserted through opening I58 may enter slot I59. The door member I89 is pivotally mounted at IGI on the rear face of plate I51 and in its normal position it extends over the slot I59. The slot closing portion of the door has its edge chamfered at 259 so that the act of forcing a coin over the chamfered portion thereof will move the door about its pivotal mounting, against the yielding resistance of spring I82, for opening the door to the entry of a coin. A second or auxiliary door member I83 is pivotally mounted at I84 on the plate and extends over the inner face of door I89. An arcuate slot and pin connection I55, I88 between the doors, together with the action of spring I81, effects coaction between the doors for yieldingly closing the slot and also for imparting an advancing impulse or force to a coin, as soon as one-half of the coin has been moved between the doors and has been released by the person inserting same. A tapered or chamfered edge I88 on the door I83 reduces friction with the coin and gives impulse to the coin movement. A block I89 is secured on the plate and serves as a bearing for part of the door I83 and carries a stop pin or lug I10 for limiting movement of the door I83 under the influence of spring I81 and also serves as an abutment for the slot closing edge of door I for limiting movement of door I88 under the influence of spring I82.

Upon detachment of plate I51 and its associated elements as shown, for example, in Fig. 16, from the studs I58 (Fig. 23) there is exposed a face plate I1I (see also Figs. 18 and 30) having apertured lateral arms I12 and I13 for receiving the tips of two of the studs I58 for positioning the face plate with its slot 414 in alignment with the slot I59 in plate I51. The face plate I11 serves as the forward wall of a coin receiving chamber. The face plate is mounted by screws or the like, on the forward edge I18 of a block I11. Screw holes are shown at I18. The block I 11 together with other parts provides the coin receiving chamber I15. The block has a laterally extending flange I19 that is bolted or otherwise secured to the frame plate 12 (see Fig. 23). The side of the block, opposite to flange I19 (see also Fig. 21), is recessed and a plate I89 is mounted on the block so as to use the recess or space so provided as the coin chamber I15. A suitable lug I8I secured to the block and the plate I80 (see Fig. 21) by a screw or the like,'

serves to spacedly connect the forward ends of The rear end of plate I89 (as seen in Figs. 21 and 23) is mounted directly upon the rear end of the block, beyond the recess in the block.

Within the upper part of the chamber I15 (see Figs. 18, 19, 20 and 30) is a floating coin responsive trigger device I 92. This trigger device, operating under the influence of the potential energy imparted thereto or exerted thereon and on parts cooperating therewith, incident to introduction of a coin into the coin chamber (see Fig. 29), causes tripping or release of the idler gear IOI, through the agency of the trip mechanism lever I45 and the shaft I 4'3 with which the trip lever is adapted to move. The trip mechanism shaft (see Fig. 23) I46 extends through the rear frame plate 12 and has a bearing in a suitable socket I85 provided therefor, on the rear face of coin slot plate I51. Thus the shaft I49 is positioned in close proximity to the coin slot, for actuation thereof from the coin slot. Also, the shaft I45 is free of connection with all other parts of the coin slot, thus facilitating servicing and removal of various coin slot parts and mechanisms, without disturbing the trip mechanism assembly.

The floating trigger I82 has a relatively loose bearing with or on the block I11. The trigger comprises an integral laterally extending stud r pin I86 (see Figs. 18 and 30) formed on its one arm I88 and which pin extends into an opening I81 in the block. The trigger also comprises a second, integral, laterally extending pin or stud I89 which extends through a larger opening I90 in the block I11. The stud I89 is disposed at the approximate junction of the arms I88 and I9I of the trigger I82, at that part of the trigger which may be termed the body portion thereof. A spring I92 has its one end attached to the stud I89 and has its other end attached to a stud I93 extending laterally from the lower forward portion of the block I11, exteriorly of the coin chamber I15. The trigger I82 (see also Figs, 19 and 20) also comprises an upwardly extending arm I93 carrying a stud I94 and to which stud a spring I95 has its one end attached, the other end of the spring being attached to the forward upper portion of the block I11 in any suitable manner, for example, by threading the end convolution of the spring through a suitable aperture I96 in the block. The said three studs I86, I89 and I94 eX- tend from the same side of the trigger. The spring, operating on the trigger, causes the trigger to operate on a coin for moving the coin into the chamber I 15. As the coin enters the chamber, the springs accomplish an equalizing of tension or pressure of the divergent trigger arms on the coin, incident to which the trigger lug or stud I91, about to be explained, is moved to efiect tripping action of the metering mechanism.

From the other side of the trigger (see Figs. 18, 21, 23 and 30), and extending laterally from the body portion of the trigger, and projecting beyond the plate I89 is a lug or stud I91 (see also Fig. 29) which is the approximate or ultimate tripping element. This stud I91 is adapted to move rearwardly as a coin is introduced into the coin chamber, then to move upwardly as the coin forces the trigger I82 upwardly, as generally indicated in Fig. 20, and then while the lug I91 is thus still elevated due to the presence of the coin, the trigger is moved in reverse direction or forwardly, as it slips downwardly in following the curvature of the coin. In so doing, the forward movement of the trigger I82, acting through stud I91 striking finger I98, actuates finger I98 (see Fig. 23) mounted on trip mechanism shaft I49 and trip depresses lever I45 for momentarily releasing the idler pawl, as previously explained.

While the general operation of the coin slot mechanism is as explained, several sub-mechanisms are involved and are provided to prevent tripping of the mechanism, except in instances where a coin of proper denomination has irretrievably passed into the coin slot. Accordingly (see Fig. 19), there is provided a base or bottom I99 for the coin chamber I15. The base I99 is attached to the block and has its upper edge chamfered or inclined as shown at 200 so as to cause the coin to slide laterally out of the chamber I15. In order to prevent escape of the coin from the chamber, until that is desired, there is provided a pivotally mounted ate ZIII (see also Fig. 30) which is so related to other parts of the de ice, that as a coin is introduced into the chamber I15, the chamfered lower arm 2 02 of the gate is raised to project above the base I99, thus providing a lateral abutment for preventing lateral discharge of the coin 293 from chamber I15. The gate is moved as explained, by contact of the trigger stud 91 upon the cam face 204 formed on the upper part of the gate, thus moving the gate about its pivotal mounting 205 on the block I11. The lower arm 292 of the gate (see also Fig. 20) is guided by a slot and pin arrangement shown at 206, 201, the pin 201 being shown as a set screw extending through slot 206 in gate arm 202 and carried by base I99 of the chamber I15. This arrangement is merely to maintain a close sliding fit of the arm 292 relative to base I99.

The gate 29I (see Fig. 30) also includes a rearwardly projecting, laterally turned portion or catch member 208, having a beveled or inclined rear face 209, whereby the catch portion may contact and move past a looking or holding pawl or lever 2I0, pivotally mounted at 2I I on the rear wall of block I11. The locking lever 2I0 (see also Fig. 21) comprises an arm 2I2 carrying the pin or stud I55 which is adapted to be contacted by the arm I54 (see Figs. 23 and 29), fixed to shaft I99 for movement with indicator 9 I. A spring 2 I 3 has one end connected to the pin I55 and the other to stud 2 I 4 on block I11 and yieldingly positions the upper arm 2 I 5 of locking lever 2 I 0 in the path of the catch 208 of the gate 20I, when the gate is moving under the influence of a coin entering the coin chamber I 15. A stop pin 229 limits movement of lever ZIII. As soon as the idler gear IGI is released and the indicator moves under the influence of spring I 21, the arm I54 associated with the indicator BI and its shaft I 09, contacts the pin I55 and releases the gate from the locking lever 2I 0, and the gate, responding to the influence of spring means 2I6 which operates through linkage 2I1, falls to its normal position, shown in Fig. 19, and the coin is projected from the chamber I 15 by reason of the energy that was imparted to the springs I92 and I incident to introduction of the coin into the chamber I15. The action of the trigger stud I91 upon the trip mechanism, and the response of the spring pressed indicator upon release of the idler gear occur so rapidly that there apparently is simultaneous release of the coin from chamber I15 and tripping of the mechanisms associated with the trip lever shaft I 48, although as a matter of fact, it is clear that the coin is not released from chamber I15 until the idler gear has been momentarily released for releasing the indicator and subsequent release of the gate 20I by the indicator shaft I09.

The particular sequence of operation of the indicated parts is not of particular consequence, it is however important, that the trigger, operating under the influence of the spring or springs that first yieldingly resist entry of the coin into the chamber I and then, by reason of the shifting of the trigger, cause the trigger to pull or draw the coin into the chamber, is at the same time conditioned for actuating the tripping mechanism for at least momentarily releasing the idler gear carrying lever as previously explained. In its broad aspect, the related phase of the invention is therefore concerned with so conditioning the trigger that the potential energy imparted to the trigger is available at the proper time and for operation on the proper elements for tripping the metering mechanism.

The forward arm Iiil of the trigger I82 (see Figs. 19, 20, 29 and 30) is provided with a rounded free end or a rounded nose as shown at 2I8, the shape being such that as a coin is pressed thereagainst, the trigger arm lti will yield and move upwardly so as to permit the coin to enter the space M8 between the divergent arms I 88 and I9I of the trigger. Normally the trigger, under the influence of the springs associated therewith, lies too low in the chamber I15 to accommodate a proper coin in the chamber, consequently, when a coin is moved into the chamber, the tri ger is moved upwardly as previously explained, for the purposes previously explained. Thus a coin responding to forced entry thereof into the chamber H5 becomes a factor in the functioning of the coin slot mechanism.

The mechanism shown at Ell (Fig. 22) indicates generally conventional means for actuating a coin counter 2m, and which includes yielding means, for example, spring 266, which yieldingly resists movement of the gate 2ElI from its normal position. By connecting the gate ZiJI to the counter mechanism, for example, by link 223 having pivotal connection with gate 2th by means of aperture 665i, each complete movement of cycle of the gate will register or count one coin as having been introduced into the device.

From the description given, it is seen that any attempt to actuate the meter by introducing a coin that is too small, will not have the effect of raising and latching the gate 2M, because the coin in contacting the forward arm IQI of trigger I82 will not raise the trigger enough to latch the back arm 2% with looking lever 2H]. Consequently, the coin will fall out of the chamber I15 without properly actuating the trigger or tripping the idler gear release lever M5.

It was previously explained generally that the trigger stud IQ'I tripped mechanism on idler gear release lever shaft l iii. That mechanism (see Figs. 23 and 29) comprises the lug or finger I98 mounted on shaft I46 and having a limited free movement on shaft I l-E5, relative to its complementary arm 22I fixed on shaft M6. The finger I98 has an aperture 222 therein and into which projects a pin 422, carried by arm 22I. A spring 223 (see also Fig. 26) having its opposite ends connected with the finger I98 and arm 22I, yieldingly permits limited relative movement of the arm and finger and thus cushions the blow of trigger stud I97 on finger 698 in actuating the meter.

The finger I93 includes an angularly turned free end (see Figs. 27* and 29) which may be termed a cam 224 which extends over the trigger lug I97. The free end 22! of the finger is so shaped that the trigger lug may move rearwardly and upwardly relative to the lower edge of the free or cam end of the finger without contacting th finger, however, when the trigger lug is subsequently raised to its upper limit and is projected forwardly incident to shifting of the trigger arms by reason of the entry of a coin into the space 2I8 betwen the trigger fingers, the trigger lug I9! moves over the lower or camming face of the finger I98 and the finger is rotatably actuated, thus rotatably actuating the idler gear release lever shaft I46, and tripping the idler gear lever as previously explained.

As a precaution or safety means for preventing rotatable actuation of the shaft Hi6, except in the intended manner, there is fixed on shaft I46 a lug 225 (Figs. 23 and 29) having a raised shoulder forming a lower portion 226. The shoulder and lower portion cooperate with a rearwardly projecting lug 228 carried by door I62 on the coin slot plate I51 (see Figs. 16 and 17). The lug 228 lies over the lower portion when the door IE0 is closed. When it is open, as during the insertion of a coin or other object, the lug is moved to the left as seen in Fig. 23 and lies over the raised shoulder 221. When the lug lies over the shoulder, the shoulder acts as a stop for the lug and thus prevents rotary actuation of shaft I45. Otherwise, when the door IE2 is closed, the registry of the lug 228 with the lower portion of the lug 225 permits sufiicient movement of the shaft I46 to trip the mechanism. It will be seen, therefore, that no actuation of the device is possible during the time that the door is open. A coin must be inserted and the door closed behind the coin before the mechanism is actuated.

One of the essentially new features of the invention is the provision of a coin-receiving chamber, with which is associated, means that are conditioned by the introduction of a coin into that chamber, so that the conditioning of such means and the subsequent ejection of the coin under the influence of the energy so applied to such means may be availed of eifecting a trigger or trip action for initiation of a cycle for which the device is intended. Incidental thereto, the indicated stored energy is also used to discharge the chamber of the coin as an incident to the initiation of such cycle. The indicated features are believed to be broadly new, and therefore the appended claims directed to such features are not intended to be limited to the specific details of structure of the coin chamber or the mechanisms actuated by reason of the building up of energy Within the coin chamber or which are operated by reason of the creation of such condition in the coin chamber of the coin slot mechanism.

The spring actuated doors on the plate I51, serve as power-actuated means for forceful entry of coins into the coin chamber I75, and for con ditioning the springs associated with the trigger and other parts of the coin slot mechanisms, for attaining automatic operation of such parts and mechanisms for attaining the desired or intended tripping or operation of the metering mechanism. Thus the device is protected against undue force in that the force with which the coins are introduced into the coin chamber may be controlled by the manufacturer of the device.

In order that the actuating coin may be exposed to view, opening 338 and transparent closure, 33l provided therefor (see Fig. 3) are provided in the casing 3i at a place at which a coin is temporarily held in the coin chute 333 (see also Fig. 14) which receives the coin as it is discharged from the coin slot mechanism, upon dropping of arm 202, forming the bottom of the coin chamber, the bevelled surface of this arm permitting easy egress (see Fi 9). The coin is retained in the visible position by arm 332 until this arm is withdrawn by lifting links 2|! and 2!B, upon lifting the coin chamber arm 282 through deposit of a succeeding coin. This arrangement is provided so the coin or other article that occasioned the last tripping of the device will be exposed. This feature is availed of by police or other officers Whose duties include the supervising of parking meters, so that if any one avails himself of parking privileges adjacent a parking meter, and uses a slug or spurious token for that purpose, the OfElCBI may observe that fact, under which circumstances the officer should remain on duty at such station until the vehicle is claimed and arrest of the oiTender is made. Suitable trip mechanism operated from link 228, releases the temporarily held coin, when the meter is actuated by insertion of another coin in the device. Such mechanism (see also Fig. 22) comprises a finger 332 which normally obstructs the coin chute passage and which is withdrawn from the passage when the link 22!! is actuated.

When link 22% is lift-ed or moved upward by gate 28!, the arm 58! of lever 582, pivotally mounted at 553, moves arm 584 of coin counter 2I9, downward (see also Fig. 22) against the yielding resistance of spring M2 for registering a coin. At such time, the link 585 collecting at 599 onto lever 58?, is actuated for releasing the coin temporarily held by the finger 332 of lever 58?. The pins 588 and 589 so cooperate with the faces EEG and 5 on lever 582, that as the lever 582, Fig. 14, is moved counterclockwise, pin 508 is seated in the detent in which pin 599 is shown. The spring 2l6 yieldingly holds the free upper end of link in contact with pins 588 and 589. Consequently, as the lever 502 is released and is moved in clockwise direction under the influence of spring EH2, lifting arm 594, the link 585 is lifted by pin 588 to sufiicient height to move lever 591 on its pivotal mounting M3. The pivot 5i3 is carried by bracket 5M. As the pin 509 approaches its normal position, as shown in Fig. 14, the link 585 is restrained by pin 589 and pin 588 is moved from the detent.

Returning now to a fuller discussion of the signals 55 and 66 of our device, attention is directed to Fig. 28 in which is shown a view of parts observed when looking at the right hand end of the structure shown in Fig. 11. The panels 88 and 89 of signals 85 and 66 respectivel are red, while panels 8? and 98 are white, for example. White panels 87 or 98 are disposed as shown in Fig. 28, when the parts are in abnormal or operating position, as the meter is operating for measuring the period of parking time. At such time, it is seen that these panels are disposed in vertical position adjacent the windows 88 and 8G respectively. Both red and white panels have identical calibrations for identical cooperation with the indicator fingers 92 and 93. The meter is preferably so set that upon expiration of the time limit, the red signal panels 88 and 89 displace the panels 8'! and 98, respectively, however, the clock mechanism continues to operate for an additional period of time or allowed overtime period, for example, ten minutes, as shown herein. This arrangement defeats the complaint that the user of a parking space might offer to an arresting officer to the effect that the time limit had just expired and that the user had no opportunity of moving his vehicle or of purchasing more parking time.

The panels 83 and 98 are fixedly mounted on a pair of spaced brackets 520, fixedly mounted on shaft or axle 86. The panels 81 and 89 are pivotally attached to the lower edges of panels 88 and 90 respectively. The lower edge of panels 8'! and 89 are pivotally connected to the lower ends of links 52! and 522 respectively. The upper ends of links 52! and 522 are pivotally attached to opposite ends of bracket 523, fixed to bracket 85 (see Fig. 11). A stop pin 524 (see Fig. 28), carried by bracket 523, serves as an abutment against which one of the brackets 528 may contact, when the signal is released to respond to the action of gravity upon the weight 525 associated with the signal.

As panel 88 is raised and panel is lowered through tilting of support 520 by pulling of link 95, panel 8! is lifted into view in the position previously occupied by panel 88, and the panel 89 is swung out of view permitting its previous position to be occupied by panel 90. Panels 8! and 89, of course, are directly moved by the rigidly supported panels 88 and 90, respectively, from which they hingedly depend. The lower edges of panels 8! and 89 are properly positioned through the supporting links 52! and 522, respectively. Thus as support 520 is tilted back and forth under the action of the weight 525 and link 95, panels 88 and 8'! are brought into and out of view on one side of the meter and panels 88 and 90 are respectively brought into and out of view on the other side of the meter.

The links 52! and 522, panels 81, 88, 89 and 98, and the various parts cooperating therewith are so proportioned and related that all the panels may assume vertical positions and the panels 81 and 89 may both assume horizontal positions in substantially the same plane, without interference with other parts of the d vice.

Summarizing the operation of our device, attention is particularly directed to Fig. 29, wherein is illustrated the particular relationship of certain working parts of the meter at the expiration of a predetermined parking period. It must be noted that indicator 9! is in extreme right position and with coil spring 12'! wound tight on shaft N39. The clocking mechanism is locked from operation by lever l3! pressing escapement 532 into engagement with one of the pallets of escape-ment wheel I33; the lever !3! at the same time holding pendulum 535 in unbalanced position. It is to be noted further that catch H4, and pin H 3 on lever !58 are disengaged and the signalling mechanism attached to bearing pin l 8 through link (Fig. 28) has fallen by gravity to lift the link and rotate lever me in a clockwise direction about shaft !89. At this time, the red panels 88 and 83 of the signalling mechanism are exposed to view in Windows 53 and B6 of the meter casing.

Clocking of a predetermined parking period is initiated from the meter position just described by inserting a suitable coin 203 in the meter coin slot. As the coin is forced through coin slot I14 by the coin door mechanism illustrated in Figs. 16 and 17, it contacts arm is! of flo in i r !82 (see also Figs. 19, 20 and 30), causing the trigger to move rearwardly and upwardly against spring tension, as more particularly pointed out hereinhefore. While the coin door is open, lug 228 on the door is displaced to engage portion 227 of lever 2'25, thereby locking shaft ie against rotation during upward movement of the trigger E82. During the rearward and upward trigger movement, trigger stud l9! contacts face 284 of pivotally mounted gate 28!, forcing catch member 2298 into engagement with holding pawl 2I9 pivotally mounted on the rear wall of block I11. Chamfered lower arm 292 of gate 29l accordingly is held above the base I99 of coin chamber I15 (see Fig. 20), thus providing a lateral abutment for preventing lateral discharge or the coin from the chamber. The coin finally passes in the space between trigger arms E88 and HM. The trigger then moves forwardly under spring action, following the curvature of the coin. Meanwhile, the coin door closes (see Fig. 16) and lug 228 accordingly is displaced over portion 226 of lever 225, thereby permitting limited rotation of shaft M6. At this time, stud I91 of the trigger raises arm 22d of lever M to turn shaft Hit in a clockwise direction.

Upon rotation of shaft I 16, spring pressed. lever hi5 loosely mounted on shaft I49, is depressed by lug M8 of arm Idi. Pin I43 on lever I92, accordingly, is released, and idler gear IUI is moved back and out of engagement with gears 99 and 99. These two gears then are freed to relative movement and spring I2! drives pointer 9| to the left, as seen in the drawing, whereupon shaft E69, segmental gear E85, gears Hi3 and 98, and shaft ltd are rotated, while gear 99 and gear EM- idle on the shaft.

As pointer 92 rotates to the left, arm I54 fixed to shaft its strikes pin of dctent 2 I2, thereby moving pawl and r leasing catch 298 of gate 252i. The gate 253% then returns to normal position (see Fig. 19) and the coin falls laterally from coin chamber 5'55 and into the coin chamber 333 to a position before window 33L as more particularly indicated above.

The timing adjustment plate I29 (see also Fig. 11) also turns with shaft E99 and lug H9 moves away from pin l is permitting catch H4 to rotate in a clockwise direction, as seen in the drawing, spring action to contact pin H3. When pointer 9i approaches its extreme left position, pin it! on the segmental gear I99 strikes the right end of lever ills, causing the lever to rotate in a counterclockwise direction about shaft I99. By this movement, link 95 is pulled down (see Fig. 28) and the white panels 65 and 59 of the signalling mechanism are exposed to view in windows 83 and (i i of the meter casing, as more particularly indicated above. Latch I M then moves over pin I it to lock the white signals in position.

When pointer 9i reaches its extreme left position as seen in Fig. 29, a portion of the pointer (see also Fig. 11) strikes lever I3I of the escapement locking mechanism moving the lower end its of the lever away from escapement member I32 and into the detent I33. Pendulum I35, which as previously noted was held off-center, starts the clockwork motor. At this time, gear I9: on arm E92 has moved by gravity to engage gears 99 and 99 and the clockwork mechanism operating through gears ltd, 99, IN, 98 and segmental gear ldfi, drives the pointer 9! to the right to commence the timing operation.

When the allotted timing period has expired, and pointer 95 again is at extreme right position, as shown in Fig. 29, lug H9 rotating with shaft I99, contacts pin I is causing catch H4 to release the pin H3, whereupon the red signals 88 and 89 come to view in windows 93 and 64 of the meter casing, as explained hereinbeiore. Lug I I 9 forces pin IE3 upward and detent I36 of lever I29 is raised, whereupon the lower end I36 of lever I3I moving under the tension of spring I31, forces escapement member I32 into engagement with one of the pallets of escapement wheel I33 to stop the clockwork, the'pendulum I35 at the same time being locked in unbalanced position.

When the device is tripped by insertion of a coin into the coin slot during the clocking of a predetermined period, operation is the same as outlined above, except of course, the white signals and their controlling lever I98, remain undisturbed and the clockwork continues to run While pointer 9I returns to initial left-hand position.

As many possible embodiments may be made of our invention and as many changes may be made in the embodiment hereinbefore set forth, it is to be understood that all matter described herein, or shown in the accompanying drawings, is to be interpreted as illustrative and not as a limitation.

We claim:

1. In a parking meter, the combination of metering means comprising clock train gearing and a pendulum type escapement; movable indicator means having a determinable limit of travel; connection means for selective connection of said indicator means with the gearing for moving the indicator means in one direction by said gearing; and means operable by said indicator means, when moved by said gearing to the limit of travel of the indicator means, for holding the pendulum against further operation and in an unbalanced position and for releasing the pendulum for assuring continued operation thereof upon disconnection of the indicator means from the gearing by said connection means in initiating operation of the meter.

2. In a parking meter, the combination of metering means including timing mechanism having clock train gearing and a pendulum type escapement, timing indicator means, means for resetting said indicator means, means for connecting said indicator means to said timing mechanism throughout a predetermined timing opera tion and disconnecting the same to permit said resetting of said indicator means, and means operated by said indicator means for stopping the pendulum type escapement of said timing mechanism in an unbalanced position upon the indicator means reaching the end of said predetermined timing operation and releasing the pendulum type escapement of said timing mechanism for actuation upon said indicator means being disconnected from said timing mecham sm and restored to its initial position.

3. In a parking meter, the combination of metering means including timing mechanism having pendulum type escapement means, stopping means for contacting said pendulum type escapement means and holding the same in unbalanced position, a timing indicator having associated means moved therewith, means for connecting said timing mechanism and said indicator throughout a predetermined timing operation and for disconnecting the same upon initiating operation of the meter to permit a resetting of said indicator, the resetting of said indicator moving said stopping means out of contact with said pendulum type escapement means and connecting said timing mechanism and indicator for the predetermined timing operation, and means operated by said means associated with said indicator upon said indicator reaching the end of said predetermined timing operation for releasing said escapement stopping means to thereby stop said timing mechanism and hold the pendulum type escapement in unbalanced position, said last-mentioned means including latch means for latching said stopping means out of contact with 19 20 said pendulumtype escapement means upon the UNITED STATES PATENTS resettlng of said indlcator, thereby assuring ao-v tuation of said timing mechanism throughout m e ame Date said predetermined timing operation, 2,088,300 Magee July 27, 1937 WALTER J. HERSCHEDE. 5 2, 15,0 4 Klemt Apr. 26, 1938 WM. N. WOODRUFF. 2,118,318 Magee May 24, 1938 W. FOY HERSCHEDE ,15 ,577 Weaver Mar. 28, 1939 I 2,177,778 Martin Oct. 31, 1939 REFERENCES CITED The following references are of record in the 10 file of this patent:

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