US895174A - Lock. - Google Patents

Description

. PATENTED AUG. 4, 1908'.

c. E. c. EDEY.

LOOK.

APPLICATION FILED AUGIZU, 1901.

2 SHEETS-SHEET 1.

IL I l I 1 e36 (C: I mm 4 4 Q 4 PATENTED AUGJL, 1908.

c. 1 c. BDEY.

LOCK.

unwuzox FILED we. 20,1901.

2 SHEETS-SHEET] UNITED STATES PZFENT OFFICE.

CHARLES E. I). EDEY, OF TACOBIA, WASHINGTON, ASSIGNOR OF ONE-HALF TO ALFRED S.

EDEY AND DUNBAR F. E-DEYQ g LOCK.

Specification of Letters Patent,

' Patented Aug; 4, 1908.

To all whom it may concern:

Be it known that I, CHARLES C. EDEY, a citizen of the United States, residing at Tacoma, in the county of Pierce and State of \Vashington, have invented certain new and useful Improvements in Locks' and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it a pertains tomake and use the same.

This invention relates to improvements in locks, and more particularly to door locks of the class adapted for use both as locks/and latches.

One of the objects in View is the provision of means facilitating the transformation of the lock to a latch and vice veisa, and a further. object is the provision of a dead lock susceptible of use both when the structure is used as a latch and when used as a lock.

lVith these and further objects in view, the invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings :Figure 1 is a view in side elevation of a lock embodying the features of the present invention, the knob shaft being seen in section and the escutchcon being seen in position. Fig. 2 is an edge view thereof. Fig. .3 is a view similar to Fig. 1 with one of the side plates removed and the knob shaft omitted, the parts being ositioned for constituting a latch, and the b0 t of the latch being projected. Fig. i is a similar view of the same with the bolt retracted. Fig. 5 is a similar view of the same with the bolt serving as a lock and the dead lock therefor set. Fig. 6 is a vertical, transverse section taken on the plane indicated by line 6, 6 of Fig. 5. Fig. 7 IS a detail, vertical section taken on the plane indicated by line 7, 7 of Fig. 1. Fig. 8 1s a detail, fragmentary lan view taken from the points indicated by inc 8, S of Fig. 5 and looking dowmvardly. Fig. 9 is a detail plan view of the bolt detached and from which the tumblers have been removed. Fig. 10 is a. similar view of the opposite side of the same. Fig. 11 is a plan view of the compensating plate detached and inverted for disclosing the exterior surface. Figs. 12 and 13 are plan views of the tumblers detached. Fig. 14 is a perspective View of the keyv designed to operate t 1e particular lock under consideration.

Referring to the drawings by numerals, 1

indicates an inclosing casing formed of a b ack )late 2 and a front plate 3, the front plate 3 being removably secured in place by screws, bolts or other suitable attaching means 4, and having at its upper and lower edges flanges 5 extending to the plate 2, the plate 2 being formed at its front and rear edges with flanges 6 extending to the plate 3. The outer flange 6 carries the usual attaching plate 7. lVithin the casing 1 is slidingly arrange the bolt 8 which has its outer end extending through registering apertures in the outer flange 6 and the plate 7. The outer end of the bolt 8 is preferably beveled as indicated in Figs. 5 and 9 for facilitating use as a latch, so that when the beveled portion strikes the edge of the keeper, the boltmay be retracted in the ordinary manner by the cam action of the bevel against the edge of the keeper, and the bolt will afterwards be projected into the keeper as hereinafter specifier The bolt 8 is formed with a recess 9 in its front face, an area of solid body 8' being left between the recess 9 and the beveled portion at the outer end of the bolt. A )ost or pin 10 is fixed to the bolt 8 within the recess 9 and is pivotally engaged by the tumblers 11 and 12, each of which carries a spring 13 which engages the upper wall of the recess 9 and normally depresses its respective tum.

blcr. On the opposite face of the bolt 8 from the recess 9, said bolt is formed with a similar recess 13 into which thepin 10 projects. Fitting snugly within the recess 13' is a compensating slide plate l-l which 15 provided at its inner end with a flange ll engaged by spring 15. -The spring 15 may be of any type desired, but preferably consists of a coil spring mounted on a pin 16 fixed to the plate 2, the said spring having its opposite ends engaging respectively the inner flange 6 of plate 2, and the llange 1-1 of the compensating slide 14. The slide 14 is formed with a longitudinal slot 17 through which extends a guiding lug 18 extending inwardly from the plate 2. The outer end of the plate 14 is preferably formed with a recess 19 adapted to accommodate the reindependently of the plate 14, the pin 10 entering the recess at the termination of the independent movement of the bolt 8 in one direction. An interfering pawl 20 s )ivoted as at 21 to the opposite face of the plate 4 from that contacting with the bolt and the free end of the pawl 20 is bifurcated and arranged with the arms of the bifurcationon the opposite sides of a detent pin 22lixed to the plate 14. The spring 23 is connected with the pawl 20 and engages the flange 24 at the outer end of the plate 14 for normally pressing the free end of the pawl 20 downwardly so as to cause the same to interfere with the o )eration of any key not properly constructed,- the downward movement of the free end of the pawl being limited by a lug 24 extending into the path of movement of the pawl from the plate 14, the pin 22 serving only as a stop or detent in the upward movement of the pawl. The shape and size of the pawl may, of course, be varied for requiring differences in the keys of different locks in addition to the d'flerences re uired by the different forms of tu nblcrs emp oyed. A dead lock arm 25 extendsupwardly from the upper edge of the plate 14 and is notched as at- 26 for permitting the inward movement of the bolt 8 independently of the plate 14 without the arm '25 interferinggwith the wall of the bolt above the recess 13'.\- The upper end of the arm 25 is provided with an inwardly turned head 26' for purposes hereinafter specified. The plate 14 is provided with a1ug*- 27 which extends through a longitudinalslot- 28 in the bolt 8 and limits the independent movement of the pawl with respect. to the plate, and also serves as a detent for the tumblers 11 and 12. Each of the tumblers 11 and 12 is slotted longitudinally as at 29, each of the said slots having enlarged ends and a restricted intermediate portion, the slots 29 corresponding in general contour with each other, but differing in minor de- .tails for necessitating differences in the length of the various projections at the outer edge of the bit of the key. The lower edges of the tumblers 11 and 12 of course extend into the path of movement of the bit of the key, and the said tumblers are adapted to be moved by the key to a position for bringing the restricted portions of the slot 29 into line with the lug 27. The bolt 8 is formed near its inner end with a notch 30 at its lower edge, adapted to be entered by the bit of the key when the bolt is to be projected to the extreme limit outwardly. A second notch 31 is formed in the said lower edge spaced from the notch 30 and leaving a pro- 'ection or arm 32. The key employed must 0 in general contour with the nature of the key disclosed in Fig. 14 in which the bit 33 is formed with an opening 34, but at times is adapted to accommodate the outer end of the arm 32 for permitting the free edge of when the same is being used as a night latch. The upper edge of the bolt 8 is indicated as being provided with notches 3.5 and 36 corres )onding' respectively to the construction and arrangement of notches 30 and 31, but the said notches 35 and 36 may be'omitted if desired, the same being employed for enabling the arrangement of the bolt for use on a left handed door for instance.

The casing 1 is apertured as usual and a spindle tappet 37 is journaled in the casin and provided with arms 38, 3S adapte when the tappet is rotated in one direction to engage theoperating lever 39. The lever 39 is pivoted at its upper end asat 40 and has its lower end depending between the plate 14 and the bolt 8 in position for engagmg the flange 14. Thus when either of the arms 38 is swung inwardly by rotation of the tap )et 37, the lever 39 will be correspondingl y swung inwardly, and the bolt 8 retracted.

The tappet is provided with longitudinal notches 41, 41 engaged by the jaws or nojections 42 of a clutch member 43. The clutch member 43 is tubular in construction and surrounds the spindle or knob shaft 44 which extends through the tappet 37, the said clutch member 43 loosely surrounding the spindle 44 so as to permit the spindle to revolve freely therein. The outer end of the clutch member 43 is provided with a flange 45 which may be annular in construction as illustrated, or which may simply assume the form of a radial lug. A collar 46 snugly surrounds the square portion of the spindle 44 and has its ends bent outwardly into radial arms 47, 47 spaced apart. Between the arms 47 is pivotally mounted a pawl or catch 48 having Ilattened portions 49 and 50 at its lower end. The spindle 44 is grooved longitudinally, as at 51, beneath the pawl 48, and a longitudinally disposed spring 52 is fixed within the said groove and disposed for exerting a normal tendency to spring outwardly. sure directly against the lower end 0 the pawl 48 and when the pawl is swung outwardly the spring 52 engaging the flattened portion 49 will retain the said pawl in its outward position and when the pawl 48 is swung inwardly by overcoming the pressure of spring 52, the said spring will engage the flattened portion 50 of said pawl and retain The the pawl in its innermost position. flange 45 is notched, as at 51, for the reception of the upper end of the pawl 48. the said upper end eing formed with a book 48 adapted to overhang that portion cf the ma terial of the flange 45 beneath the pawl when the pawl is in its innermost position. Thus the pawl may be caused to interlock readily The spring thus exertsxa pres.

, free-to revolve independently of the tappet.

The latch 48 is, of course, disposed on the inside of the door.

A hollow shaft 53 is journaled in the casing 1 and is adapted to have any desired interior contour for receiving a key from the inside of the door only. To the shaft 53 arelixed radial lates or arms 54 and 55, the arm 55 being ormed with a notch or opening 55 adapted at times to fit over the head 26 of the dead lock arm 25 as indicated in Figs. 5 and S for producing a dead lock condition of the arts. The arm 5% is adapted to engage the orward edge of the arm 25 when the arm 55 is revolved away from the head 26, so that the key engaging the shaft 53 may be used as a latch key as indicated by the position of parts seen in Fig. 4.

\Yhen it is desired to utilize the resent improved lock as a latch, the pawl 48 is caused to engage the flange .45 for connecting the knob s )indle with the tappet 37, and the bolt 8 will act in the ordinary manner. When however it is desired to employ the present improved lock as a night latch, the said pawl 48 is swung out of engagement with the flange -15, and thus the connection of the knob with the bolt 8 is severed. The key used for operating the night latch may be the same key used for operating the lock as a lock, but in all events the key must be provided with the opening 34 which is not necessary for throwing the bolt S when used as a lock. \Vhen using the bolt 8 as a night latch the key is thrust through the key hole and turned in the usual manner whereupon the outer edge of the key passes into the notch 31 and, engaging the arm 32, presses the bolt 8 back and )ermits the door to be opened, the outer end of the arm 3. projecting through the opening 34 in the bitof the key.

"henit is desired to em iloy the present im rovcd structure as a. lock, the spindle 52 is isconnected as stated, and the key seen in Fig. 14 is thrust through the key hole and revolved for causing the bit to enter the opening 30 while the parts are in the position indicated in Fig. 3, and by a continued revolution of the said bit toward the left the bolt 8 will be thrust outwardly to the position indicated in Fig. 5. This extra outward movement of the bolt 8 is independent of the plate 1- which remains stationary during such movement,- the tumblers 11 and 1'2 being elevated by the introduction of the bit of the key into the notch 30 and being moved until the restricted portion of the respective slots 29 are in line with the lug 27, so that when w the bit of the key completes: its revolution the said tumblers will be thrown downwardly again with the lug 27 positioned in the inner enlargement of the respective slot '29 as indicated in Fig. 5. Eac 1' of the tumblers 11 and 12 is provided with a downward projection 57 and just below the lower edge of the bolt 8 is arranged a stop or lug 58 fixed to the plate 2. The depending projections 57 are, of course, elevated when the bit ofthekey elevates the inner ends of the tumblers, and

thus when the bolt is projected to its far thest extent outwardly, the said projections are caused to )ass over and in front of the lock 58,-and w ien the bit of the key mbves out of engagement with the tumblers-the same will dro under spring pressure, and thus position the depending projections 57in front of the lug 58 whereby the bolt 8 is locked against retraction until the tumblersl It is to be observed that the are elevated. dead lock may be positioned for n'eventing retraction of the compensatiin sli e plate 14, and thus even if a spurious key is successfully manipulated for elevating the tumblers so as to enable retraction of the bolt until the lug 27 enga es the wall at the outer end of the slot 28 the dead lock will prevent retraction of the compensating slide plate 14 and thus prevent further retraction of the bolt 8. Even if the dead lock is not used the further retraction of the bolt could not be accomplished exce )t by the use of a key having an openin in t he body of the bit thereof, and when the dead lock is used the retraction of the bolt with the compensating slide plate 14 is rendered wholly impossible until access is bad to the inside of the door.

I claim:

1. In a mechanism of the class described, the combination with a casing, of a bolt slidingly mounted therein, said bolt being formed with a notch adapted to receive the bit of a key for throwing the bolt, and a projection extending from said bolt into the path of movement of said bit in position for extending through the bit when the bit enters the said notch.

2. In a n'iechanism of the class described, the combination with a casing, of a bolt slidingly mounted therein and adapted to have one of its ends project outwardly beyond the casing, a compensating slide plate arranged contiguous to said bolt, means limiting the amount of slide moving of said compensating slide plate, the bolt being formed with a longitudinal slot, a lug extending from the slide plate through said slot, a tumbler pivotally carried by said bolt and formed with a longitudinal slot having enli'irgements at its end and a restricted portion intermediate its len th, the said lug projecting throiwh the saii slot in the tumbler and the tumbler being positioned for being moved by the bit of i a I wry ortion of the tumbler slot in line with said ug, key actuated means for moving said boltwith said shde, and key actuated means for moving the bolt beyond the. hunt movement of the slide, the said second mentioned key actuateo means being positioned for enabling simultaneous engagement of the hey therewith and with the tumbler for movin the tumbler to a position with the restrictetlportion of the slot in line with said lug.

3. In a mechanism of the class described, the combination with a casing, of a bolt slidingly mounted therein and adapted to have one of its ends project outwardly beyond the casing, a compensating slide arranged contiguous to said bolt and connecting means between said slide plate and said bolt for transmitting movement from the slide plate to the bolt and vice vczsa, a spring pressing said slide plate. outwardly, and said connecting means being adapted to be disconnected by the introduction of a key and means disposed in the ath of movement of the key when moved into engagement with the bolt for disconnecting the connection of the slide plate for enabling said bolt to be moved inde pendently of said slide plate.

4. In a mechanism of the class described, the combination with acasing, of a bolt slidingly mounted therein and adapted to have one of its ends pro'ect beyond the same, a slide plate detacha ly connected with said bolt, means for actuating said slide plate, an arm projecting from said slide plate, and a pivotally mounted arm formed with an openmg adapted to inclose the free end of the first mentioned arm for constituting a dead lock of the slide plat the bolt being adapted to be moved outwardly beyond the limitation of movement of the slide )late by disconnection of the connections )ctwecn the slide )late and bolt.

5. in a mechanism of the class described, the combination with an inclosing casing, of a bolt slidingly mounted therein and ada )ted to have one of its ends projected beyond the casing, a slide plate detachably connected with said bolt, an arm projecting from said slide )late, and means adapted to be positioned in the path of said arm for locking the same against movement, the said bolt being adapted to be moved independently of the slide late by disconnection of the connections etween said bolt and the slide plate.

6. In a mechanism of the class described, the combination of an inc-losing casing, of a bolt adapted to have one of its ends projecting beyond the casing, knob spindle actuating means for reciprocating said bolt, an arm connected with said belt, a rotatably mounted shaft arranged within said casing, and arms projecting radially from said shaft, one of said arms being positioned to engage the bolt connected arm for moving the same and the other said radial arm being formed with means adapted to be engaged bysaidbolt connected arm for locking the same against movement.

7. In a mechanism of the class described, the combination with a casing, of a swing actuated bolt arranged therein, a nob spindle arranged in said casing, a spindle tap pet surrounding said spindle, means for transmitting movement from said tappet to said bolt, said tappet being formed to receive a clutch a detachable connection between the spindle and tappet, a clutch for engaging said tappet and means independent of the ta(ppet actuated means adapted to be actuate for moving said bolt.

8. In a'mcchanism of the class described,

the combination with a casing and a bolt slidingly mounted therein, of a knob spindle journaled ir said casing, a tappet surround mg said spindle, means for transmittin movement from the tappet to the bolt, said tappet being formed with clutch receiving recesses, a clutch member disposed outside said casing and extending into the same and having clutch members projecting into the recesses of said tappet, and a latch fixedly connected to the spindle and adapted to engage the said clutch member for enabling the transfer of movement from the spindle to the tappct, and means adapted to be actuated independently of the tappet actuated means for moving said bolt.

9. In a mechanism of the class described, 1

the combination with a casing and a bolt slidingly mounted therein and adapted to have one of its ends project beyond its casing, of a ta ppet, mmins'actuatcd thereby for moving said bolt, a spindle extending throu h said tappet, a clutch member engaging tie tappet and surrounding the spindle and extending bcyor-d the casing, a collar sur rounding the spindle outside of easing, the spindle being formed with a longitudinal groove, a spring positioned within said groove and pressing normally outwardly, a pawl pivoted to said collar and having its lower end extending into contact with said sprin the lower end of said pawl being formed with surfaces adapted to retain the pawl in any of a plurality of positions by pressure of the s )ring against the same and means on said clutch member adapted to be engaged by the pawl when in one of its positions for forming a rigid connection between the collar and the clutch member, whereby movement may be transmitted from the spindle to the ta-ppet, the bolt being constructed to be actuated independently of the tap )et actuated means.

In testimony whereof aili'x my signature in presence of two witnesses.

CHARLES E. O. EDEY.

Witnesses:

L. G. Pansoxs, KAY Snrrn.

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