US1915624A - shipley - Google Patents

Description

June 27, 1933. B. M. SHIPLEY QASH REGISTER ori filal Filed Jan. 24, 1930 2 Sheets-Sheet 1 Berni: M. Shipley Y His dwmwu B. M. SHIPLEY CASH REGISTER June 27, 1933.

Original Filed Jan. 24. 1930 2 Sheets-Sheet 2 v gwve nto'o I Berni: M, Shipley Patented June 27, 1933 UNITED STATES PATENT OFFICE BERNIS M. SHIPLEY, OF DAYTON, OHIO, ASSIG'rNOR TO THE NATIONAL CASH REGISTER COMPANY, OF ."DAYTON, OHIO, A CORPORATION OF MARYLAND CASH REGISTER Original application filed January 24, 1930, Serial No. 423,230. Divided and this application filed March 14, 1931.

This invention relates to locking mechanisms as used on cash registers and like machines, and more particularly refers to improvements in the press-down key type register shown and described in the application for Letters Patent of the United States, Serial No. 423,230, filed January 24, 1930, by Bernis M. Shipley, of which the present application is a division.

An object of this invention is to provide means for positively locking the indicator setting mechanism in its set or adjusted po sition.

Another object is to provide mechanism for releasing the indicator locking mechanism when the indicators are being set.

Another object of the present invention is to provide locking mechanism to act directly upon the indicators to aline them in their set positions.

Still another object is to provide novel means for locking the machine under various selectable conditions, and embraces mechanism for locking the selecting means in the chosen position.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

Of said drawings:

Fig. 1 is a transverse section taken through the machine showing a differential unit, the indicator setting mechanism for one denomination and the indicator locking and alining mechanism.

Fig. 2 is a detail view showing the positively operated mechanism for locking the indicator setting mechanism to prevent overthrow.

Fig. 3 is a. side elevation showing the mechanism for selectively locking the machine.

Fig. 4 is a fragmentary view showing the lock control setting lever and a spring pulled alining pawl therefor.

Serial No. 522,633.

General description The advantages of the roller type indication makes its use desirable on the pressdown key type register to replace the old target indication formerly used thereon. These advantages include, a'saving in cost of manufacture, a type of indication that adapts itself well to the present trend in machine cabinet design, and an indication that reads uniform when viewed from either the front or rear of the machine. The latter is a decided advantage over the target type of indication which when viewed from the rear of the machine will read from right to left, thereby causing quite a bit of confusion.

In adapting the roller type indication for use on the press-down key register much trouble was experienced due to several inherent characteristics of such registers. In the press-down key register it is essential that the indication be set on the down stroke of the key levers as this is a positive movement, and also the time when the differential mechanism is actuated upon which the indicators depend for proper positioning. 7

With this type register it is possible to create a great deal of momentum on the down stroke of the key levers. For this reason it was thought impracticable to use roller indication, because such momentum would give excessive whip to the indicators causing them to carry past their destinations, thus creating false indication. and in extreme cases damage the indicators by tearing them from their bearing hubs. whip would be generated when changing from the lowest order of a particular denomination to the highest, and vice versa. For example, say an indicator for a certain denomination is sitting in the zero position, upon depression of the nine key of the same denomination this indicator would receive its maximum movement. The same would be true were the above condition reversed. Also, the amount of whip would vary with the energy expended by the operator in depressing the keys. A roller indicator was developed which lends itself readily to use on this type machine, and is fully set out and de- The maximum amount of scribed in the application for Letters Patent of the United States, Serial No. 303,249, filed August 13, 1928 by William H. Robertson.

This indicator is resiliently set in either direction to absorb the torsional strain or the shock caused by being rotated rapidly and stopped abruptly under the conditions set out above. This shock absorbing device is not shown in the drawings of this division, but is fully described in the above mentioned Robertson application.

This shock absorbing device eliminates the possibility of damage to the indicators and reduces the overthrow to a degree where roller indication can be safely used on the press down key registers. However, to eliminate the possibility of the indicators carrying past their destinations, due to lost motion in the setting mechanism, and to aline them in their set positions, it was necessary to employ the novel locking mechanism here shown, which constitutes a part of the present invention.

7 here are two indicators for each denominational group of keys, the two being operated in unison, one to display the value of the depressed key toward the front, the other to display the corresponding value toward the rear of the machine.

Detailed description Following a brief description of the keyboard and the differential mechanism used on. this machine a detailed description of the indicator and locking mechanism will be given.

7 Keg board areshown in Fig. 1.

All key levers are pivoted on a rod 48, and their forward ends extend through slots 49 in the cabinet 37 and carry the usual designating key tops.

A key coupler cooperates with all of the key levers to restore them to normal after they have been fully depressed, and to actuate certain elements of the machine. The coupler is pivoted on trunnions (not shown) in axial alinement with the shaft 111. A lip 56 on the coupler cooperates with notches 57 in the key levers 44 and 45 to couple the key levers of different denominations in a manner well known in the art.

Dz'fierentidl mechanism 261,996, filed March 15, 1928, is associated depression of the key 45 engages its cam slot 58 with a universal rod 59 carried between two segments 60 (only one of which is here shown), pivoted on a rod 61 extending between the machine side frames, 30 being the only one shown, to rock the bail formed by the segments 60 and the rod 59 a distance correspondin to the value of the key depressed. During its return movement the depressed key restores the differential bail to its normal position where its movement is arrested by a toe 64 on the segment 60 striking a stud 65 (Fig. 1) projecting laterally from the rear arm of the 10 cent key 45. The stud 65 stops the bail with the rod 59 in alinement with the mouths of the differential slots 58.

Indicator mechanism There are two indicators for each denominational group of keys, the two being operated in unison, one to display the value of the depressed key toward the front, and one to display the corresponding set-up toward the rear of the machine. The indicatorsare of the type disclosed in the application for Letters Patent of the United States, Serial No. 303,249, filed August 13, 1928, by lVilliam H. Robertson.

These indicators are resiliently set in both directions to eliminate thetorsional strain or shock occasioned by the rapid rotation of the indicators, especially when a 9 key is depressed with the indicator for that group of keys standing at .O or 1, and vice versa,

when the *1 key is depressed and its indi-' cator is standing at 8 or 9. The resilient indicator drive is not shown in the drawings of this case, but for a full understanding thereof reference may be had to the abovementioned Robertson case.

A description of the setting of the indicators for the tens-of-cents bank will serve as illustrative for those of the other banks.

The indicators are set by a minimum movement device, including a segment 130 (Figs. 1 and 2) pivoted on the rod 61 and an actuator therefor. The segment 130 has alining teeth formed on the periphery thereof with which an aliner finger 131, yoked together with other fingers and fast on a shaft. 132

supported in the machine side frames cooperates to aline the segment 130 in the position to which it is moved. Segment 130 is set under the control of differential segments 60 by depression of a key 45.

A pair of companion links 133 and 134 (Figs. 1 and 2) curved outwardly to form a clearance opening therebetween for the rod 61, are pivoted at their lower ends on a bail 135 carried by and connecting a pair of swinging arms 136 and 137 pivoted on studs 138 and 139 projecting inwardly from the intermediate frames shown only in the parent case.

The lower ends of the companion links 133 and 134 are hubbed together, and their upper ends, normally hooked over the rod 61, are connected by a stud 140. The two companion links are laterally spaced apart to embrace therebetween a denominational group of parts comprising the differential segment 60 and the indicator setting segment 130.

The connecting stud 140 on the companion links 133 and 134 passes through a cam slot 141 formed in the differential segment 60, and also through a heart-shaped opening 142 formed in the indicator setting segment 130.

Inclined cam slots 143 and 144 formed respectively in actuator arms 145 (Fig. 1) and 146 (Fig. 2), fast on the shaft 111 and properly spaced apart thereon, embrace studs 147 and 148 projecting laterally from the lower ends of the swinging arms 136 and 137 respectively.

Depression of a key or keys, rocks the key coupler 55 and shaft 111 clockwise, carrying the actuator arms 145 and 146 therewith, thereby camming the bail, comprising the rod 135, arm 136 and arm 137 clockwise about its pivots 138 and 139 to move the companion links 133 and 134 rearwardly. During such movement the stud 140 travels in the cam slot 141 and the opening 142, and at the same time the differential cam slot 58 of the particular key depressed sets the segment 60 accordingly. The angle of the cam slot 141 in the segment 60 is such that as the stud 140 moves rearwardly therein it shifts the setting segment 130 from the position it occupied at the beginning of the operation, to its new position as determined by the value of the particular key depressed; or if no key is. depressed in that denominational group, the stud 140 tllVGlSiIlg the slot 141 with the segment 60 for that bank standing at zero, restores the setting segment 130 to its zero position.

As the actuator arrives at the outermost limit of its travel it thrusts a pointed nose 149 on the end of the link 133 into a particular one of a series of serrations, determined by the particular key depressed, on an arcuate bar 150 securely mounted on rods 151 and 152 extending between a bracket 76 and another bracket not shown, to positively align the companion links 133 and 134, the differ ential segment 60, and the indicator setting segment 130 at the instant the actuator arrives at its outermost point of travel.

It is to be remembered that the groups of keys for the pennies and dollars banks are each provided with a similar arrangement for setting their indicators.

Setting segment aliner One of the features of the instant invention is the adaption of the well known roller the instant said setting mechanism arrives at 4 its new position and before the momentum of the resiliently set indicators can displace the setting, and which positively holds the aliners in engagement with the setting mechanism to prevent the back lash or whip from displacing the set indicators.

This novel alining mechanism is 'best shown in Figs. 1 and 2, and will now be described.

The setting segments 130 are normally locked by aliner fingers 131 engaging notches in the periphery of the segments 130. A spring 153 (Fig. 2) has one of its ends attached to an angular arm 155 of an aliner operating lever 156 fast on the shaft 132 on which the aliner fingers 131 are fast. The spring 153, urging the lever 156 and the shaft 132 to rock counter-clockwise, normally presses the tip of the other arm 157 of the lever 156 against a hook formed on a restraining arm 158 of a multiple-armed control lever 159 pivoted on the shaft 152 eX- tending between the bracket 76 and a second bracket (not shown), which arm 158 normally restrains the lever 156 and shaft 132 in their normal positions, thereby positively holdim the aliner fingers 131 in engagement with the alining teeth on the setting segments 130.

Before the segments 130 can be moved to new positions it is necessary to disengage the aliners 131 therefrom. These aliners 131, when freed from the arm 158 are removed r-om the segment notches by the spring 153. To release the aliner fingers 131 to the action of their spring 153, to permit the stud 140 and differential segment 60 to reposition the setting segments 130, the aliner control lever 159 is rocked clockwise early in the operation of the machine by the following mechanism.

A link 161 (Figs. 1 and 2) connects an arm 162, fast on the key coupler shaft 111, to an arm 163 of a lever 164, pivoted on the stud 139 on which the swinging arm 137 pivots. This link 16-1 transmits the rocking movement of the key coupler 55 and the shaft 111 to the lever 164, rocking this lever first clockwise and then counter-clockwise to normal position.

On the clockwise movement 'of the lever 164, a by-pass tappet 165, pivoted on the free end of the other arm 166 of the lever 164, strikes a stud 167 projecting laterally from an arm 168 on the control lever 159, rocking this lever clockwise against the tension of a spring 169 having one of its ends attached to an arm 170 of the control lever 159, to remove the hooked arm 158 out of the path of the arm .157, whereupon the spring 153 rocks the lever 156, shaft 132 and aliner fingers 131 counter-clockwise to free the aliner fingers from the setting segments 130. The counter-clockwise movement of these parts is limited by the squared end of the angular arm 155 striking a collar 171 fast upon the rod 151 extending between the bracket 76 and a second bracket '(not shown).

As soon as the tappet 165 is past the stud 167 the spring 169 rocks the lever 159 counterclockwise until it is arrested by the nose of the arm 158 striking and resting on the tip of the arm 157, which was moved therebeneath at the disengaging movement of the aliner shaft 132.

The setting segments 130 are now free to be adjusted to the positions as determined by the particular key depressed 1n each of the groups of keys. As the advancing key coupler and the actuator arms 145 and 146 approach the end of their clockwise travel, the left-hand end of a pitman 173 pivoted on and actuated by bail 135, strikes a stud 174 on the arm 155 and rocks the lever 156 and shaft 132 clockwise to positively re-enter the alin er fingers 134 in the notches in the setting seg ments 130. As the lever 156 rocks clock wise and the tip of the arm 157 clears the hook on the arm 158 the spring 169 restores the lever 159 to its effective position to posi- .tively restrain the aliner fingers 131 in their engaged positions. At the very end of the depression of the key or keys and of the clockwise movement of the lever 164, a stud 180 on the arm 166 strikes a face 181 on an arm 182 of the lever 159 to positively move the hooked arm 158 into its restraining position with the tip of the arm 157, should the spring 169 for any reason fail to do so.

In actual operation of the machine, the tip of the pitman 173 restores the lever 156 just before the stud 180 strikes the face 181 of the arm 182, the spring 169 immediately rocking the lever 159 counter-clockwise to hook the arm 158 over the tip of the arm 157 so that the stud 180 normally does no work, merely acting as a safety member to prevent the lever 159 from lagging or sticking, and to insure that the segments 130 are positively alined in their set positions.

When the pressure on the depressed key or keys is released, and the key coupler 55 together with the shaft 111 rocks counter-clockwise to normal position, the actuator cams 143 and 144 rock the bail 135. counter-clockwise to withdraw the pitman 173. At the same time the link 161 rocks the lever 16.4 counter-clockwise to normal, the by-pass tappet 165 wiping by the stud 167, tensioning its spring which, immediately after the tap pet clears the stud, restores the tappet to its normal position. The counter-clockwise movement of the cam arms 145 and 146 through the cams 143 and 144 draws the bail 135 inwardly to restore the companion links 133 and 134 and the pitman 173 to their normal positions, as shown in Fig. 1.

The differential adjustment of the setting segments 130 rotates the indicators 38 to position them according to the particular keys depressed, and since the segments 130 are moved directly to their new positions, so also are the indicators 38 rotated from their old positions directly to their new positions without first passing through their zero positions.

A link 183 (Fig. 1) connects the setting segment 130 and an arm 184 pivoted on a shaft 185 journaled in the indicator frames 41, transmits the differential movement of the segment 130 to the arm 184 connected by a yoke 186 to an arm 187 also journaled on the shaft 185. The arm 187 carries a segment 188 meshing with an indicator pinion 189 journaled on the indicator shaft 40 to rotate the indicator 38 from the position in which it was left at the end of the last operation, directly to its new position, as determined by the particular key depressed, without first returning the indicator to zero.

However, before the indicators may be set to their new positions it is necessary to disengage indicator aliners 190 (Fig. 1), fast on an aliner shaft 191 journaled in theindicator frames 41. An aliner 190 cooperates with the pinion 189 for each of the indicators.

The aliners 190 serve to hold the indicators in parallel alinement after they have been set to their new positions, thereby correcting any tendency of the indicators to assume a staggered alinement due to lost motion between the setting segments 130 and the pinions 189.

A flanged by-pass cam 192 pivotally carried on an operating arm 193 journaled on the indicator shaft 40, cooperates with'a stud 194 on an arm 195 fast on the aliner shaft 191 to rock the arm 195, shaft 191 and the aliners 190 clockwise to disengage the aliners from the pinions 189 and restrain them in their disengaged positions until the indicators are set to their new positions. After the indicators have been adjusted to their new positions, the cam 192 allows the stud 194-to escape therefrom, whereupon an aliner restoring spring 196 reengages the aliners 190 with the pinions 189. V

A link 197 connects the cam arm 193 to an aliner operating arm 198 fast on the operating shaft 111. When the key coupler 55 and shaft 111 rock clockwise upon operation of any key, the arm 198 raises the link 197 to rock the cam arm 193 counter-clockwise thus engagm g an angular flange 199 with the stud 194 and rocking the arm 195 and shaft 191 clockwise to disengage the aliner 190'. The

short face of the flange 199 rocks the arm 195 and the longer face restrains the indicator aliners in their disengaged positions for the proper duration of time, or until the indicators are set, whereupon the flange 199, continuing its counter-clockwise travel, passes from beneath the stud 194 which frees the arm 195 to the action of its spring 196, which immediately reengages the aliners 190 with the pinions 189.

Upon the return movement of the key coupler 55 and the shaft 111, the arm 198, by the link 197, rocks the cam. arm 193 clockwise to its normal position, the inner face of the short flange riding over the stud 194. The movement (in both directions) of the cam 192 is limited by, and the cam is guided by, a stud 205 projecting from the arm 193 through a concentric slot 206 in the cam 192. A restoring spring 207 returns the cam to its normal position after the flange has passed the stud 194.

Machine locking mechanism Selective locking mechanlsm is provided, which may be adjusted to lock the machine against operation when the cash drawer is open or it may be so arranged as to lock the machine at all times or the locking mechanism may be rendered ineffective altogether at the will of those having access thereto.

The selecting lever for this locking device is made accessible by raising a lid or door that secretes the total-taking and printing mechanism. This lid also furnishes a means for locking the selecting lever in any chosen position so that it can be changed only by those having a key to the lid.

This machine lock includes a pair of hell crank latches 613 and 614 (Fig. 3) pivoted on the cross rod 61 and urged toward their eflective locking positions in the path of the coupling bar 56 on the key coupler 55 by springs 615 and 616, the latch 613 being under the control of the cash drawer 36 and both latches being controlled by a lock setting lever 617 (Figs. 3 and 4) pivoted on a stud 618 projecting from the intermediate frame (not shown). The setting lever may be adjusted to any one of three positions to variously control the locking bell cranks 613 and 614 and when set, is locked in position by a detent 619 under the control of a lid or door 509. The detent 619 is pivotally supported on the intermediate frame 89 and is provided with a serrated opening 622 through which projects a knurled adjusting stud 621 on one arm 622 of the setting lever 617. The stud 621 projects beyond the detent 619 to serve as a handle by which the setting lever 617 may be rocked manually to the desired position. The other arm 623 of the setting lever 617 carries a stud 624 projecting across the planes of the bell crank latches 613 and 614,

and against which the springs 615 and 616' press the arms 630 and 631 (Fig. 3) of their respective latches 613 and 614.

has three positions,

614 out of the path of the coupling lip 56.

Thus, it can be seen that when the setting lever 617 occupies the position in which it is illustrated and the cash drawer 36 is closed, the machine is free to be operated. But as soon as the cash drawer is released, as an incident to the operation of the machine, the bracket 634 moves away from the end of the arm 633, permitting the spring 615 to rock the latch 613 counter-clockwise until an arcuate forward edge of the arm 633 strikes the raised coupling lip 56 which prevents further clockwise movement of the latch 613 until the key coupler 55 on its downward stroke arrives in its home position, whereupon the spring 615 rocks the latch further counterclockwise to position the shoulder 632 above the coupling bar 56, thus locking the key coupler 55 and consequently all of the keys 44, 45, 46 and 47 against operation until the drawer 36 is closed. As the drawer 36 approaches its closed position the bracket 634 picks up the arm 633 and restores the latch 613 to its ineffective position.

In case the cash drawer should be released by operation of the usually provided man.- ually operable release device (not shown) the spring 615 immediately rocks the latch counter-clockwise to at once position the shoulder 632 above and in the path of coupling bar lip, to lock up the machine until the drawer is closed. 7

In order to shift the. setting lever 617 it is first necessary to unlock and raise the lid 509 after which the operator may grasp the knurled stud 621 and rock the lever counterclockwise to either its second or third posi tions from the position in which it is illus trated in Fig. 3. The lid 509 is then closed, locking the appropriate one of the V-shaped notches in the opening 620 over the stud 621, thus securely holding the setting lever in its selected position. In the second or middle position of the setting lever, the stud 624 on the arm 623 thereof blocks counter-clockwise movement of both of the latches 613 and 614. Therefore, when the setting lever 617 00- cupies its middle position, the machine may be operated at any time regardless of whether the cash drawer is opened or closed.

By rocking the setting lever to its extreme 617 toone of its other positions.

A. spring pressed alining and locating detent 636 (Fig. 4E) cooperates with the rounded lower end of the arm 623 to resiliently hold the setting lever 61? in position and to assist the operator in properly setting the same.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is:.

1. In a machine of the class described; the combination with a key actuated operating mechanism; indicators; and means operated by the operating mechanism to differentially set the indicators; of a normally effective aliner to aline the indicator setting mechanism; a latch to normally restrain the aliner 1 in its effective position; and means operated by the operating mechanism to trip the latch.

2. In a machine of the class described; the combination with a key actuated operating mechanism; andindicator setting mechanism; of a normally effective aliner to aline the setting mechanism; a latch to normally restrain the aliner in its effective position; means operated by the operating mechanism to trip the latch; and spring means to move the aliner to its ineffective position.

3. In a machine of the class described; thecombination with a key actuated operat ing mechanism; and setting mechanism; of means to aline the setting mechanism; a latch to normally restrain the alining means in alining position; means operated by the operating mechanism to trip the latch; means to move the aliner to non-aliningposition; and means operated by the operating mechanism to positively restore the aliner to alining position.

4. In a machine of the class described; the combination with a key actuated operating mechanism; and a setting mechanism; of an aliner to aline the setting mechanism the aliner being normally latched in its eiiective position; means operated by the operating means to unlatch the aliner; spring means to move the aliner to its ineffective position; means operated by the operating mechanism to move the aliner to effective position; and spring-operated means to relatch the aliner in its effective position.

5. In a machine of the class described; the combination with a main operating mechanism; and a setting mechanism; of an aliner to alinethe setting mechanism; a latch to normally restrain the aliner in its eflective position; means operated by the main operating mechanismto unlatch the aliner means to rock the aliner to inefiective position; and

the aliner in engagement with the segment;

a lever operated by the main operating mechanism; means carried by the lever to unlatch the hook; means operated by the main oper-..

ating mechanism to move the aliner into engagement with the segment; and means on the lever to restore the hook to its latching position.-

7. In a machine of the class described; the combination with a key actuated operating mechanism; a setting segment; and means operated by the operating mechanism to dilferentially position the setting seg ment; of a shaft; a finger fast on the shaft; a lever fast on the shaft; a hooked arm to normally latch the finger in engagement with the segment to aline said segment; means operated by the operating mechanism to release the lever; and spring means to rock the lever to render the finger ineffective to alinethe segment.

8. In a machine of the class described; the combination with a main operating mechanism; a setting segment; and means oper ated by the main operating mechanism to differentially position the segment; of means to aline the segment; means to latch the alining means in eiifective position; means to unlatch the alining means;spring means to move the alining means to ineffective position; means to restore the aliner to alining position; and other means to aline the segment while the first mentioned alining means is being restored to effective position.

9. In a machine of the class described; the combination with a main operating mecha; nism; a setting segment; and means operated by the main operating mechanism to differentially position the setting segment; of means to aline the segment; means to normally latch the alining means in effective position; means operated by the main operating mechanism to unlatch the alining means;

'means to rock the alining means to ineffective position; means operated by the main operating mechanism to restore the alining means to effective position; means operated by the main operating means to lock the segment in its new position while the alining means 1s bemg restored; and means operated by the main operating means to relatch the,

alining means in efiective position.

10. In a machine of the class described;

the combination with a differential segment; an actuator therefor; and manipulative means to control the actuator to differentially set the segment; of an aliner for the segment; a latch to normally hold the aliner ineffective position; means to unlatch the aliner; spring means to move the aliner to ineffective position; means operated by the main operating mechanism to move the aliner to its effective position; and means on the actuator to hold the segment against movement while the aliner is being re-engaged.

11. In a machine of the class described; the combination with a main operating mechanism; asettable element; and means operated by the main operating mechanism to differentially set the settable element; of means to aline the settable element; a multiple-armed lever, one arm of which forms a latch to hold the alining means in its effective position; another lever; a pivoted member on the second mentioned lever to rock the multiple-armed lever to release the aliner; means to operate the aliner; and means on the second mentioned lever to rock the multiple-armed lever to latch the aliner,

12. In a machine of the class described; the combination with a key operated operating mechanism; a setting element; and means operated by the operating means to differentially set the setting element; of means to aline the setting element; means to normally latch the alining means in effective position; a lever oscillated by said operating means; a pivoted member on the lever to unlatch the aliner; and a projection on the lever to positively latch the aliner.

13. In a machine of the class described; the combination with a differentially movable element; of means to aline the dilferentially movable element; a latch to normally lock the alining means in its effective position; a lever; a pivoted member on the lever to rock the latch in one direction to release the aliner; and a projection on the lever to rock the latch in the other direction to latch the aliner.

14. In a machine of the class described; the combination with a differentially movable element; of means to aline the differentially movable element; a latch to normally lock the alining means in its effective positions; a lever; a pivoted member on the lever to rock the latch in one direction to release the aliner; a projection on the lever to rock the latch in the other direction to latch the aliner; and means to operate the lever.

15. In a machine of the class described; the combination with a setting segment; and means to differentially move the setting segment; of a shaft; an aliner finger on the shaft cooperating with the segment, the fine ger being moved out of cooperative relation by a spring; a lever fast on the shaft; a

multiple-armed lever having one of its arms forming a latch to restrain the aliner finger in effective position; an operating lever; a tappet pivotally supported on the operating lever, the tappet being flexible in one direction; means to rock the operating lever, the tappet striking a stud on one arm of the multiple-armed lever to release the alining finger to its spring; a pitman to restore the aliner to effective position; and a projection on the operating lever adapted to strike a third arm of the multiple-armed lever to positively move the latch to its effective position.

16. In a machine of the class described; the combination with an indicator; and means to set the indicator; of a shaft to support the indicator; of an aliner finger, spring held in cooperative relation with an indicator pinion secured to the indicator; an

operating arm pivotally supported on the indicator shaft; means to actuate the operating arm; and means on the operating arm to first disengage the aliner and then release the aliner.

17. In a machine of the class described; the combination with an indicator having a pinion connected thereto; means to differentially set the indicator; and a shaft to sup port the indicator; of an aliner normally spring held in engagement with the indicator pinion; an operating arm pivotally supported on the indicator shaft; means to actuate the operating arm; and a flanged cam arm pivotally carried on the operating arm to first disengage the aliner and then release the aliner to the action of its spring.

18. In a machine of the class described; the combination with an indicator having an indicator pinion resiliently connected thereto; a shaft to rotatably support the indicator and its pinion; and means to differentially rotate the pinion; of an aliner, said aliner being fast on a shaft and normally engaging the pinion; an arm fast on the aliner shaft; an operating arm pivoted on the indicator shaft; a cam arm pivotally supported on the operating arm, the cam arm being rigidly held relative to the operating arm in one direction and yield'ingly held in the other direction; means operated as an incident to the operation of the machine to rock the operating arm; an angular flange on the cam arm adapted to engage a stud on the first mentioned arm to disengage the aliner, to hold the aliner out of engagement and then to permit reengagement of the aliner with the pinion.

19. In a machine of the class described; the combination with an operating mechanism; a closure to conceal the operating mechanism; and means to lock the operating mechanism; of adjustable means under the closure to control the locking means; and a pivoted means, also under the closure, to enable movement of the adjustable control means when the closure is open and to lock the control means when the closure is closed. 7 Y

20. In a machine of the class described; the combination with an operating mechanism; a closure to conceal the operating mechanism; means to lock the operating mechanism; an adjustable lever to control the locking means; and a pivoted arm cooperating directly with the lever and the closure to prevent movement of the control means when the closure is closed.

21. In a machine of the class described; the combination with an operating mechanism; a

closure to conceal the operating mechanism;

and a plurality of means to lock the operating mechanism; of a lever; a projection on the lever to variously control the locking means; another projection on the lever; and

detent under the control of the closure, the

detent having internally formed serrations cooperating with the second mentioned projection to lock the lever against m'o'vfiie'nt' when the closure 1s closed. 7

23. In a machine of the class described, the

combination with an operating mechanism, and a plurality of means to lock the operating mechanism; of a diilerentially adjustable lever having two arms; a projection on one arm to selectively control the locking means; a pivoted detent having an opening with a series of notches therein; another projection on the other arm of said lever adapted to be engaged by one of the notches: in the detent for each position of said lever; and a hinged lid arranged to contact the detent when said lid is closed to lock the adjustable lever in the selected position.

24. In a machine of the class described; the combination with a differentially movable element; a main operating mechanism; and means operated by the mainoperating mecha-' nism to set the differentially movable element; of means to aline the differentially movable element; a multiple-armed lever, one arm of which forms a latch to hold the aliner in its effective position; a lever adapted to cooperate with another arm of the multiplearmed lever to move the latter, and means causing a movement of the main operating mechanism to rock the second lever and thus rock the first lever and unlatch the aliner.

In testimony whereof I affiX my signature.

BERNIS M. SHIPLEY.

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