US1358877A

US1358877A - Lock

Info

Publication number: US1358877A
Authority: US
Inventors: Absalom W Ricks
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-11-12
Filing date: 1919-11-12
Publication date: 1920-11-16
Anticipated expiration: 1937-11-16

Description

A. W. HICKS.

APPLICATION FLIDKNOV. l2. |919. 1,358,877. Patented Nov. 16,1920.

4 SHEETS*SHEET l.

` A. w. mcKs.

LOCK.

APPLICATION FILED NOV. I2, |919- Patellted NOV. 16, 1920.

4 SHEETS-SHEET 2.

A. W. HICKS.

LOCK. APPLICATION FILED Nov. I2. I9I9.

1,358,877, Patented Nov. 16, 1920.

4 SHEETS-SHEET 3'.

INVENTOR. A-W- Ricks.

A. W. HICKS.

LOCK.

APPLlCATION FILED NOV- 12 i919.

Patented Nov. 16, 1920.

4 SHEETS-SHEET 4.

INVENTOB.

A.WP..ck.6

UNITED STATES PATENT OFFICE.

ABSALOM W. KICKS, OF REXBURG, IDAHO.

Loox.

Application filed November 12, 1919. Serial No. 337,593.

To all 'zo/loam t may concer-a.'

Be it known that l, AnsALoM XV. Rions, a citizen of the United States, residing at ReXburg, in the county of Madison and State of idaho, have invented certain new and useful improvements in Locks, of which the following is a specification.

his invention relates to locks and has for its oh'ect the provision of means whereby a holt may be controlled through the use of a plurality of keys or 4push rods and intermediate elements so arranged that the reo'f the lock by an unauthorized person will be p ventec. The invention seeks to provide a. lock which may be mounted upon the dashboard of an automobile and control a movable part so that when the lock is set, the movable part of the automobile will be inoperative and, hence, the vehicle cannot be used by persons not possessed of the combination according to which the keys or push rods must be manipulated. The invention is illustrated in the accompanying drawings and will be hereinafter fully described, the novel features being subsequently particularly pointed out in the appended claims.

in the drawingsli gure l is a perspective view of a lock enbodying my present invention, some parts of the supporting structure being omitted in order tl other parts may be more clearly shown;

Fig. 2' is a longitudinal vertical section taken just in front of the guiding ribs or flanges which are provided on the inner w s of the main frame;

3 is a transverse section taken about on t e line 3-3 of Fig. 2;

Ll is a detail perspective view of the it rts shown in Fig. 3;

i Pig. is an end view of theV lock;

T1ig. 6 is a detail perspective view f the gitudinal rock shaft;

` 7 is a detail perspective view of the lol ne slide show in Fig. 7

9 is a detail perspective view of the l0 is a detail transverse section; il is a detail perspectiveview of one ush rods or keys.A

.ff/entien, l

employ a frame which may be of any suitable form and is illustrated as consisting of walls l arranged in rectangular relation and having standards 2 rising from their end members. The standards 2 are connected by upper and lower cross bars 3 and t and these bars 3 and l at one end project beyond the adjacent standard, as shown clearly in Fig. 2. Adjacent the lower ends of the standards 2, inwardly projecting vertical ribs or flanges 5 are provided on the end walls of the frame and these ribs or flanges are provided with forwardly projecting lips 6 which constitute stops'as will be hereinafter more particularly set forth. It is to be understood that small knobs or lugs will serve the functions of these stops and I do not limit myself to lips extending the full width of the ribs or flanges as shown in the drawings. One of these ribs or flanges 5 is provided at an intermediate point of its height with an opening .7 for a purpose whichwill hereinafter appear. The upper bar 3 of the frame will preferably secured by any convenient means to the dashboard 8 of the vehicle so that the mechanism of the vlock will be hidden from view by the dashboard and the only parts of the mechanism which will be readily accessible will be the keys or push f rods 9 which project throughthe dashboard and are slidably mounted in the bars 3 and el. The upper portions of these push rods or keys are angular, as shown at l0, and the openings in the bar 3 and the dashboard are of similar outline so that turning of the bars or keys will be prevented. The lower portions of the bars are circular in cross section,

as at il, and springs l2 are coiled around the said circular portions between the bar i and stops 13 on the several rods so that the rods will be normally held projected, as shown in the drawings. Each rod is equipped with a cap plate 14 upon which is displayed a number corresponding to the position of the key in the row of keys.

rlhe bolt l5 is mounted longitudinally in frame and is slidanly supported in the i wa ls thereof. A standard 16 is provided between the ends of the frame and is constructed at its upper end with an eye l? through which the bolt l5 passes'and which so serves as an abutment for a spring i8 which is coiled around the bolt between the s l eye and a pin or other form of stop i9 carried by the holt near its free end. lormally the spring 18 serves to proj ect t ie bolt through one end of the frame and the movement of the bolt under the influence of the spring is limited byicontact of the stop 19A with the side of the frame as will be readily understood. The lock may be so arranged upon the automobile as to serve its purpose in various ways and I have deemed 1t unnecessary to illustrate any of 1`these per-V missible arrangements inasmuchas I do not restrict myself to any one adaptation. For instance, the bolt, when projected, may bear upon a projection on the inlet valve of the carburetor so that said valve will be held closed. Of course, the automobile cannot be operated until'the valve be opened and, inV

order to open the valve, it will be necessary to release the bolt by working the combination for which the lock is set, The bolt may, however, be so disposed that when it is projected it will hold the-steering post in a fixed position; it may be so arrangedas to hold Vthe clutch open and against movement, or

it may be so arranged as to put the starting devices in an inoperative condition and to hold them in such condition untilthe combination has been operated and the lock thereby opened. To withdraw the bolt, the keys or push rods 9 or some of them are operatedvin a predetermined sequence to actuate intermediate devices whereby the bolt will be caused to slide in the frame in opposition to the spring 18.

Between the abutment 17 andthe adjacent end of the main frame, the bolt 15 is angular in cross section, as shown at 20, and this angular end of the bolt is slidably mounted in an opening of similar outline in the frame whereby rotation of the bolt is prevented.

On the under side of this angular portion of the bolt, is a rack 21 which is engaged by a segment'or pinion 22 on a transverse rock shaft23. This rock shaft 23 is journaled in the front and rear walls of the frame and at an intermediate ioint of its leno'th is )ro-v vided with a crank arm or lever 24. A longitudinal'roek shaft25 isjournaled in the end'walls of the frame near the front side of the same and this rock shaft isprovided adjacent its ends'with segments or pinions 26 which constantly mesh withracks-27 at the ends cfa shelf'28, said racks bearing at their rear sides against the front faces of the ribs or flanges 5 and being held in vertical position by the same and by the pinions 26. Normally, the upper'ends of the racks abut the stops 6 so that the upward movement of the racks and the shelf 28 carried by them will be limited. The rock shaft 25 is constructed with a forwardly projecting arm or lever 29 and a spring 30 isattached to the-free-end of said-arm and toa fixed part ofthe frame sothat it tends to hold the shaft in such a position that'the pinions 26 willrhave'moved thevracks 27 to the'up- Ward limit of their movement;

The. shaft.

crank or leverarms 31 and with other longer Y lever arms 32 which are pivotally attached to the shaft in such manner that 'downward pressure exerted upon the said arms will cause the shaft to rock in its bearings but lateral pressure thereon will not affect the shaft, although swinging the levers about their pivots. The pivoted levers are normally held in a position radial to the shaft by springs 33 secured to the shaft and the front ends of the levers, as shown most clearly in Fig. 6. lt will also be noted that thevlevers 32 pass through slots 34 in the shaft and the ends of these slots are so disposed as to limit the-pivotal movement of the lever under the inuence of the-springs. The arrangement of the several levers will be determined by the combination of numbers for. which the lock is designed and a knowledge of whichmust be had to permit the operation of the lock. There will be either a fixed lever or a pivoted lever in the vertical plane ofeach key or push rod except that key or push rod which corresponds to the first number of the combination. In the present instance, the first number of the combination is 2- and, accordingly, there is no lever or crank arm in thev plane of the second key or push bar. It may also be noted that the tenth key or push bar, which isdesignated by Zero, is disposed outside the main frameand mountedjin the projecting ends .of the bars 3 and e and has for its function the setting of the lock after it has once been opened. The crank or lever arm 35 to be engaged by this keyfor push rod is, of course, always iixedlto therock shaft 25.

rihe shelf 28 extends rearwardly between the ribs or anges 5 ofthe main frame and is disposed below the several `levers or crank arms on the rock shaft 25 so that it will not interfere with the movement of the same, and-above the rear portion of the shelf 28 the releasing slide 36 is mounted so that normally it will rest upon the shelf, as shown clearly in Fig. 3, whileit is slidably mounted in the endiwalls ofthe main frame. The slide 36 is provided with a plurality of notches or openings 37 extending longitudinally thereof to beengaged by a spring catch 38 moun-tedon the under side of the shelf 28 and projecting at its free end through an opening 39 inthe shelf. This latch is soformed that theslide 36'1nay move readily thereover whenV it is being properlyk manipulated to open the lock and will be held against reversemovement by the engagement of the latclr in one of the notchesor openings 37; Should the keys not bc operated in the proper sequence', the latch will be released. and the slide will then at once return to its initial position. This result is due to the fact that when an improper key is depressed, the lower end thereof will engage one of the lever or crank arms extending from the rock shaft 25 and will depress the said lever or crank arm so that the shaft will be rocked and the segments 26 caused to move the racks 2'? downwardly whereupon the shelf 28 will be lowered and the latch 38 withdrawn from the opening v37 in which it may be engaged. immediately upon this withdrawal of the latch, the slide will be returned to its initial position by the action of a spring 40. The said spring 40 is coiled around a rod 41 which is slidably mounted in the end Walls ot the trame and is rigidly connected with the slide by webs 42 so that while the rod 41 spaced from the slide it is an integral structure therewith and the bars or webs 42 constitute stops to limit the movement of the slide by coming into Contact with the end walls or" the frame. One web 42 also constitutes one abutment for the spring 40 wnile the other abutment is provided by an eye 4B at the upper end of a post 44 lined on the bottom of the ramecor some other stationary part ol the same, the rod 41 passing r irougn the eye 43, as clearly shown in le noted that the working end of 1 l5 normally project-s through the the frame. lnitially, the

guide and spring-supportproject through the leitena of tle frame, and the slide and said rod shouli be ot such length that they i i be supported by the endrwalls of the in their positions and have a range movement corresponding to the number oi' elements in the combination which controls the lock. Depending from the web 42 at the lefthand end oit the slide 36 and the bar or rod 41 is a trip 45 which is adapted to actuate an angle lever 46 which controls a spring latch, the Jfunction of which is to hold the shelf 28 in its lowered position until the slide has reached its initial position. The lever 46 has its two arms disposed L,ten angle less than a. right angle pivoted the junction of its arms ne end wall of the frame immediately t n the rib 5 extending therefrom. The longer arm ot the lever projects into 31e oath ol the trip 45 and normally eX- Ynds away from the end wall or'f the frame. he shorter arm of' the lever extends be- /een the rib 5 and the-,bowed portion ot .e spring latch 47 which is secured upon e rear sine of said rib and has its lower nd projected through the opening 7 therewhereby it may engage a notch or socket in the rear side ofthe adjacent rack 2T. fr small roller 49 is carried by the lower portion of the spring latch 47 so as to reduce the frictional wear between the same and the shorter arm of the lever 46.

0n the upper side of the slide 36 are one or more wedges or cam blocks 50, the positions of which are determined by the keys which operate in the combination of the lock. The slide also carries a push pin 51, the position of which is likewise determined by the combination or' the lock and this pin is movable through the slide, being normally held in a raised position by a spring 52 coiledaround the pin between the slide and a stop 53 on the pin, the pin being constructed with a. head 54 at its lower end which engages the under side of the slide and thereby limits the upward movement of the pin. A longitudinal slot 55 in the shelf 28 permits the pin to pass through the shelf and act upon the lever or crank arm 24 or" the rock shaft 23 when the parts are properly manipulated to open the lock. Adjacent the push pin 51 and also adjacent one of the blocks 50 are strikers 56 which are small studs or projections rising -from the slide and having projections 57 on their front edges in position to engage the free ends oi the longer lever arms 32 in the manipulation of the device. The key or push rod corresponding to the lirst number otl the combination will work through an open space between the levers 231 as previously suggested, and will engage the inclined face oi? the irst block 50 and, acting thereon, will move the slide one degree to the right. This operation will bring the rst striker 56 into engagement with the longer arm of the pivoted lever 32 and will swinf the same out of the path oli the corresponding key so that when said key is depressed it will act upon the second wedge-shaped block 50 and move the slide second degree to the right. This second movement the slide will cause the second striker to swing the second longer pivoted lever 32 ont of the path of the corresponding key so that when said key is depressed it will push the pin 51 downwardly and, inasmuch as said pin will have then assumeda position over the crank 24, itwill act upon said crank so as to rock the shaft 223 whereupon the pinion 22 meshing with the rack 21 will withdraw the bolt 15. The bolt is provided in its upper side at its righthand end with a notch or recess 56 which will be carried thro eh and beyond the acont end wall oi' the laine when the bolt is withdrawn in the r. ner just stated. 7"1l/*hen the notch 5S is thus brought beyond the main frame, it will be immediately enbv the rear end oit a lever latch 5i) which is pivoted, as `at 6), upon the end wall oi the traine and is held toward the bolt 15 bv a spring 6l. The iront end of the lever latch 59 is arranged adjacent the tree end of the crank or lever 35 and the Zero key is provided at its lower end with a toot 62 bridging the space between the

members

35 and 59 and equipped with rollers 63 bearing upon the ends of said memupon the tree ends of the members 35 and to the combination is equipped'with a roller 59 and the member 59 swuno u )on its pivot .l .rs afrainst ine force of the spring G1 to releaseJ o o the bolt15 which will then be at once proected under the influence of the s rin@ 18. Il" l :D

i. he downward movement ot the member 35 ,will rock the shaft 25 so that all the lever or crank arms thereon will be swung below the path oit the proiections 57 on the strik` ers 56 and thershelt 28 will be simultaneously depressed so that the latch 38 will be withdrawn from the notch 37 in which it is engaged whereupon the slide will be returned to its initial position under the inlincnce of the spring' 20.

The lower endso't' the keys or push rods which do not'forni a part ot the combination for the Ylock are pro lided in their lower` ends with rollers 6st whereby the irictional wear upon the corresponding` levers 8l will be minimized. The key which corresponds lirst number ci the combination is provided at its lower end with a rearwardly projected foot upon the extremity ol which is a roller 66 to engage the corresponding block 5U. The key corresponding to the second or the third number or l arranged to ride upon the corresponding lever 82 and above the said roller said key is also constructed with a toot 68 oroiecting rearwardly and carrying at its extremity a roller 69 disposed at a right angle .t roller'GT so that the triction'al wear upon the correspmiding1 block 5() or the push pin 51 will be minimized.

lt is thought the operation ot' my im-V proved lock will be readily understood. As has been said, the drawings show a lock set for the combination 2 69 and by referring to Figs. 1 and 2, it will be noted that when the bolt is projected the key or push rod bearing the number 2 will be in alinement with a space between two lever or `Vcrank arms 31 and the roller 66 carried by said key or push rod will beV in position to act upon the inclined ace of a wedge or cam block 50. It will also be noted that the second block 50 is at the left or" thc key or push rod bearing Ythe numeral 6 and that said key or push rod is in alinement with pivoted leiter 32 while the push rod or key numbered 9 is also in alinement with a pivoted lever and at aconsidcrable distance to the vright ot the ptsh pin 51 and the striker 56 adjacent said pin. lVith the parts in this position, if any key except that numbered 2 be depressed, the result will be a rocking of the shaft 25 and no change in the position of the bolt or any of the other working parts .will follow, exceptV that the shelf 28 will be lowered. Upon release of the key, the shelf will rise under the influence of the spring 30. It the key numbered 2 be depressed, the rock shaft 25 and theshelt28 will not be disturbed inasmuch as there is no lever or crank Varm in the planeet said key but the roller 66 carried by said key will ride down the inclined surface Vof the adjacent block 5() and will thereby push the slide 86 to the right a distance equal to that covered by the said inclined face. As the slide is pushed to the right, a notch 37 therein will be engaged by the latch 38 and, consequently, the slide will be held against movement to the left when the key is released. If, now, any key but that numbered 6 be depressed, the rockshaft 25 will be again rocked and the sheft 28 lowered so that the latch 38 will be withdrawn from the notch 37 and the slide 36 .will be returned to its initial position at the left so that it will be necessary to again depress the key numbered 2. When the key numbered 2 was depressed and the slide 36 moved to the right, the lirst striker 56 was brought against the first pivoted lever 32 and said lever was swung about its pivot so as to be carried beyond the path of the key numbered 6.V It the said key were then depressed, it would carry the roller 69 thereon into engagement with the inclined tacerot the second block 50 and the slide 86 would be moved a second space to the right thereby bringing the push pin 51 into alinement with'the key numbered 9 and causing the striker 56 adjacent said push pin to carry the corresponding lever 32 out of the path et said key. If, after the key 6 is operAA ated, any key but Vthat numbered 9 be depressed, the shelf 28 will be again lowered and the slide 36 released so that it will return to itsinitial position at the left and it will be necessary to start the operation anew. lf, however, the key 9 be depressed, the push pin 51 will be forced downwardly through the slide 36 and the slot 55 in the' shelf 28 to bear upon the crank or lever 24; extending from the rock shaft 23. Said shaft 28 will consequently beV rocked so that the segment 22 thereon meshing with the rack 21 will withdraw the bolt 15 and open the lock. ill-.s the bolt is withdrawn or moved to the right the notch 58 thereon will be carried under the end of the latch 59 which will be at once causedrto engage the notch by the spring 61. The lock will thus be held opened until such time as it is manually manipulated to be reset. en it is again desired to project the bolt and lock the automobile, the zero key is depressed thereby swinging the latch 59 about its pivotand disengagiinig it from the notch 58 in the bolt and simultaneously depressing the lever or crank 35 so' as to rock the shaft 25 and lower the shelf 9.8 to release the slide. When the slide is released, the spring 4() expands and forces the slide to the left as will be readily understood and, in a like manner, the bolt is projected by the expansion of the spring i8 when the latch is withdrawn from the bolt so that the movement of the slide and the bolt to the left will be automatic and instantaneous.

The pinions or segments 26 are fast to the rock shaft 25 and the racks 27 are rigid with the shelf 28. inasmuch as the racks are constantly in mesh with the said pinions the rocking of the shaft 25 will be instantly communicated to the racks so that the shelf 28 will be lowered. Then the shelf is lowered the racks 2T are, of course, moved downwardly and the notch 48 is brought into alinement with the end of the ,latch 47 which will thereupon spring into engagement with the notch and hold the shelf depressed so that it will not interfere with the movement of the slide to the left and will not interrupt said movement prior to the completion of the same. The angle lever 46 being less than a right angle, the long arm thereof will normally project from the adjacent end wall of the frame and is disposed in the path of the vtrip 45 carried by the slide. When the slide moves to the left, therefore, this trip will impinge against the free end of the lever 46 and will carry the longer arm of the same against the adjacent end wall of the frame thereby swinging the lever about its fulcrum and causing its shorter arm to Abear upon the latch 47 and withdraw the free end thereof from its engagement with the adjacent rack 27 whereupon the shelf will be raised under the iniluence of the spring 30. It will be understood, of course, that the tension of the several springs will be so adjusted that the resistance to the downward or inward movement of all the keys will be equal and the strength of the spring 30 will be such that the rock shaft 25 will be returned to its initial position positively upon release of the latch 47 without presenting excessive resistance to the actuation ofthe several keys. It will be understood, of course, that while I have illustrated a three number combination in the accompanying drawings, a combination consisting of four numbers or any other plurality of numbers may be employed. The numbers of the combination may be arranged in any desired order but obviously the same number can only be used once in any combination. ln all combinations, the first key of the combination must be arranged to move through a space in which there is no lever or crank projecting from the rock shaft 25 and the striker corresponding to the second number of the combination must be disposed one degree to the left of the key corresponding to the second number of the combination while the second striker must be two degreesr to the left of the key corresponding to the third number of the combination and so on. In all combi- 'cns, it will be necessary' to operate the iirrst key of the combination before any progress toward withdrawing the bolt Acan be made and the several keys of the combination must be operated in the prescribed order. any variation from the prescribed order of operation will cause the shaft 25 to rock and lower the shelf 2S so that the slide B6 will at once return to its initial position and it will be necessary to start the operation anew.

li/.y lock can be placed at any point upon the automobile but will preferably be housed on the dashboard and the bolt may be arrangfjed so as to bear upon or act upon any part which is essential to the successful operation of the automobile and hold said part in inoperative position. llVhile the operation is simple if the combination be known, it is practically impossible for a person not knowing the combination to open the lock.

Having thus described the invention, what is claimed as new is:

l. A lock comprising a bolt, yieldable means for holding the bolt normally projected, a plurality of keys to be selectively operated, and intermediate devices whereby operation of the keys in a predetermined sequence will effect withdrawal of the bolt in opposition to said yieldable means, the bolt remaining at rest until the last key in the sequence is operated and being positively mechanically withdrawn by the action of said key.

2. A lock comprising a bolt, means for holding the bolt normally projected, a plurality of selectively operated keys, means controlled by some of the keys for withdrawing the bolt, and means controlled by one of the keys for holding the bolt in its withdrawn position.

3. A lock comprising a bolt, means for holding the bolt normally projected, a plurality of keys, means actuated by some of the keys to positively mechanically withdraw the bolt, and means actuated by other of the keys whereby the bolt-withdrawing means will be rendered inoperative and withdrawal of the bolt will be prevented.

4. A lock comprising a bolt, yieldable means for holding the bolt normally projected, a rock shaft geared to the bolt, a plurality of keys to be selectively operated, intermediate devices operable by some of the keys in a predetermined sequence to actuate the rock shaft to positively withdraw mechanically the bolt, and means actuated by other of the keys whereby said intermediate devices will be rendered inoperative.

5, A lock comprising a bolt, means for holding -the bolt normally projected, a plurality of keys, means actuated by some of vthe keys to withdraw the bolt, means actuated by other of the keys whereby withdrawal of the bolt will be prevented, and means controlled by one key for holding the bolt in a withdrawn position.

6. A lock comprising a bolt, means for holding the bolt normally projected, keycontrolled means for holding' the bolt'withdrawn, a rock shaft operatively colmected with the bolt, a plurality of keys to be selectively operated, and means controlled by some of the keys for actuating said rock shaft to withdraw the bolt.

7. A lock comprising a bolt, means for holding the bolt normally projected, a rock shaft geared to the bolt, a crank projecting from said rock shaft, a slide disposed above the rock shaft, a push pin mounted upon the slide, and selectively operated means to Aactuate the slide whereby to bring the push pin into operative relation to said crank and to depress the push pinvwhereby to rock the shaft and withdraw the bolt.

8. In a lock of the character described, the combination of a bolt, a slide, bolt withdrawing means controlled by the slide, a

plurality of keys, means for holding the lactive position shaft.'

means for holding the bolt normally projected, key-controlled means for withdrawslide-normally in a set position, means actuatedby some of the keys for moving the slide from the set position, and means actuated by other keys to-return it to set position, the bolt-withdrawing means being operable only when the slide has been fully moved from set position. Y

9. In a lock of the character set forth, the

combination of a bolt, a slide, bolt-with-` drawing means, means for holding` the slide normall in a set )osition a aluralit ofV keys to be selectively operated, means on the slidewhereby the actuation of some of the keys will move the slide from its set position, means for holding the slide against return to the set position, and means wherebyV actuation of other keys will release said .holding-means and permit the slide to return to the set position, the bolt-withdrawing means being operable only when the slide has been fully moved from set position. Y

10. A lock comprising a bolt, means for holding the bolt normally projected, a rockshaft'geared to the bolt, a slide disposed :above .and at lan angle to the rock shaft.

means on the slide to actuate the rock shaft and withdraw the bolt, and selective means for actuating the slide whereby to bring into the means to actuate the rock 11. A-.lock comprising a casing, a bolt,

ing the bolt, a latch mounted eXteriorly on vvthelcasing to engage the bolt and hold vit inV withdrawn osition and ke -controlled `jections on the slide to be engaged by semeans mounted eXteriorly on the casing to release the latch and the [list-mentioned keycontrolled means and permit theV bolt to projected. n

12. A lock comprising a boit, means for holding the bolt `normally projected, means for withdrawing the bolt, a slide controlling' the bolt-withdrawing means, a plurality of keys to be selectively operated, and cam pro- `meansfor withdrawing the bcltrincluding a slide, means for normally holding the slide in inoperative position, means for engaging Y the slide as vit is moved from inoperative pesition to prevent its return, and selective means for moving the slide to operative position or releasing said slide-engaging means whereby to permit' return of the slideto inoperative position. Y

15. In a lock of the characterset forth, the combination of a bolt, a bolt-withdrawing slide, a rock shaft disposed parallel with the slide, a plurality of keys disposed Vabove the slide andthe rock shaft, arms projecting from the rock shaft in alinement with the several keys, some of said arms being pivoted for Ymovement in the axial plane of the rock shaft and there being one key in alinement with the space between two adj acent arms, cams on the slide to be engaged by selected keys, and strikers on the slide to swing the respective pivoted arms out of Vthe paths of the keys alined respectively `Vor releasing said latch to permit return of the slide, means for holding the latch out of the path of the slide during return of the latter, and means actuated by the slide for releasing the latch-holding means.V

17. In a lock of the lcind set forth, the

Y combination of va bolt, a bolt-withdrawing slide, means forholding the slide normally` in inoperative position, a latch to hold the slide out of inoperative position, a vertically movable member carrying said latch, selectively operable means for moving the slide from inoperative position or lowering said vertically movable member to release the latch and permit return of the slide to inoperative position, means for normally holding said vertically movable member in raised position, a second latch arranged to engage said vertically movable member, and means actuated by the slide as it returns to inoperative position to release said second latch and permit the vertically movable member to rise.

18. ln a lock otthe type set forth, the combination ot a bolt, a bolt-withdrawing slide, means for holding the slide normally in inoperative position, a latch to hold the slide out of inoperative position, a vertically movable member carrying said latch, selective means for moving the sliee from inoperative position or lowering said vertically movable member to release the latch and permit return of the slide to inoperative position, means for normally holding said vertically movable member in raised position, a second latch arranged to engage said vertically. movable member, and an angle lever having one arm in engagement with said second latch and its other arm in the path of the slide to be actuated by the slide as it returns to inoperative position whereby to release said second latch and permit the vertically movable member to rise.

19. In a lock of the type set forth, the combination of a bolt, a bolt-withdrawing slide, means for holding the slide normally in inoperative position, a shelf disposed below the slide, a latch` carried by the shelf to hold the slide out of inoperative position, vertically disposed racks on said shelf, a rock shaft, pinions on the roclr shaft meshing with said racks, and selectively operable means 'for moving the slide to bolt-withdrawing position or rocking said shaft whereby the shelf and latch will be withdrawn from the slide to permit return of the slide to inoperative position.

20. ln a lock oiE the type set forth, the combination of a bolt, a bolt-withdrawing slide, intermediate devices controlled by the slide o positively withdraw the bolt, means to; ioldino the slide normally in inoperative position, means for permitting return f of the slide to inoperative position comprising` a roel: sha'it, a plurality of cranks eX- tending from said rock shalt, and a latch movable into or out of engagement with the slide by the action of said rock shaft, cams on the slide, and a plurality of lreys to be selectively operated, some o said keys being arranged to engage only the levers carried by the rock shaft and other of the keys being provided with lateral feet at their lower ends whereby they may engage levers on the rock shaft or cams on the slide.

In testimony whereof I aliix my signature.

ABSALDM W. HICKS. [Ls]