US1421522A

US1421522A - Lock

Info

Publication number: US1421522A
Application number: US417070A
Authority: US
Inventors: George F Mayer
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-10-15
Filing date: 1920-10-15
Publication date: 1922-07-04
Anticipated expiration: 1939-07-04

Description

G. F. MAYER.

LOCK.

APPLICATION FILED ocma, 1920.

Pmtedmy 4, 1922.

3 SHEETS-SHEET I.

55%, Ge'o/ e ./1447 r G. F. NIAYER.

LOCK. AP`PLlcAT|oN FILED 0cT.15. 1920.

Patent@ jiliy 4, 1922.`

" HTs-SHEET 2 fue ' la We al geo/e@ Wfz eases: K5@ #WM G. F. MAYER.

LOOK. APPLATIDN FILED OCT. 15, 1920. 1 ,421,522, Patented July 4, 1922,

3 SHEETS-SHEET 3. 2" z8 FIS? KWHTE@ STTES PATENT OWWQ.

GEORGE F. MAYER, OF CHICAGO, ILLINOIS.

LOCK.

Application lcd October 15, 1920.

T 0 @ZZ whom t may concern:

Be it lrnown that l, GEORGE l". hlhnrnn, a citizen of the United States, and a resident of the city of Chicago, county of Coolr, and State of lllinois, have invented certain new and useful Tinprovements in Locks, of which the following is a specification.

Mr invention relates to loclrs of a 'type comprising` a plurality of tumblers, each of which is adapted to be actuated for effect ing a locking operation and all of which may be moved out of locking relationship by operation in a certain predetermined sequence and order, and it is the principal object of my invention to provide an improved construction and arrangement by reason of which an effective looking may be secured, while at the same time the mechanism may readily be manipulated by one having the required information.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

rhe invention will be best understood by reference to the accompanying' drawings forming a part of this specification, and in which7 Fig. 1, is a front elevation of my improved lock,

Fig. 2, a horizontal section taken through my improved lock near the top portion thereof, and Showing the lock mounted in position on a door,

Fig. 3, a vertical section taken substantially on line 3 3 of Fig. 2,

Illbig. el, a'horizontal section taken substantially on line /l-lof Fig. 3,

Fig. 5, a vertical section taken substantially on line 5-5 of Fig. El and showing, dotted lines, a changed position of certain of the parts.

Fig. 6, a verticle section similar to Fig. 5, with the lower portion broken away, and showing another changed position of certain of the parts,

Fig. 7, another view similar to Fig. 5, also partly broken away and showing still another changed position, and

Fig. 8, a detailed sectional view as taken on line 8-8 of Fig. 3, partly broken away, and showing diagrammatically an electric alarm system in connection with the lock.

leferrinoA to the drawings 15 indicates a S )ecication of Letters Patent.

Patented July d, 1922.

serial No. 417,070.

casing which is secured by angle bars 16 in a door 17 of any suitable type for closing a doorway between posts a fragmentary portion of one of which is shown in Fig. 2 and indicated by the numeral 1S. lillithin the casing 15 there is mounted a frame-work comprising side plates 19 and 2O and a transversely extending plate 21, as best shown in Fig. el. rllhe side plates 19 and 2O are connected at their forward ends to a heavy face plate 22, and are connected at their rear ends to the rear face of the casing 15, as shown in Fig. 2. lilounted upon the upper edge of the plate 21 is a crossbar 23, which is in the form of an angle bar, as is shown in Figs. 5 and with ears 2e extending` upwardly at its end portions. The upwardly directed rear edge of the plate of the bar 23 is in the form of a rack, as is shown in Fig. 2. .el locking bolt 25 is slidably mounted upon the crossbar 23, such bolt being` slidably mounteY between the rac-lr portion of the bar 23 and the ears 24 of such bar, as is best shown in Fig. An arm 26 extends forwardly from the locking bolt 25. being turned upwardly at its forward end and provided with a plurality of teeth on its upper end, whereby it is adapted to be operated by a toothed wheel 27 which is revolubly mounted a short disa pin 28 which is provided at its forward end with a thumb .nut 29. The locking bolt 25 is also provided with rack teeth upon its upper edge, shown in Fig. 2. which teeth correspond in shape and spacing vwith the teeth of the crossbar 23, the arrangement being such that a tumbler inserted in the space between the teeth of one bar is adapt ed also to engage the space between the teeth of the other bar for holding the parts against longitudinal movement with resject to each other. The bolt 25 is provided one end with a pin 30, which is movable longitudinally therewith, and which is adapted to be projected through an opening 31 in the side of the casing 15 into contact with an auxiliary l cking bolt 32, which,

vin turn, is adapted to be projected from the edge of the door into operative engagement with a suitable keeper 33 mounted in the door post 18. A spring 34 is provided for retracting the bolt 32 when the pin 30 is withdrawn by the movement of the locking CIK bolt 25 toward the right iii-Fig. 2, throughI the medium of'the thumb nut 29, as above described.

For locking the bolt 23 in either its projected or its retracted position, as above described, I have provided a plurality of tumblers 35, the forward ends of which are mounted in position. upon a cross plate 3G above the edge of the plate 2l, is clearly shown in Figs. 5 and 6. The tumblers 35 are supported at their rear ends by means of vertically disposed llevers 37, which are pivotally mounted by means of across r'od 38 extending between the

frame members

19 and 20, as is bestsho-wn in Fics. 3 and 5. As is clearly shown in Fig. 3, the upper end of each of the levers 37 is bifurcated so as toprovide a suitable seat for the rear endY portion ofthe tumbler 35. As is best shown in Fig. 2, each' of the tuniblers 35 is provided with. shoulders near its rear end, whereby a forward movement of the upper end of the lever 37 serves to push the tumbler forwardly. As is best shown in 5, when the tumbler 35 is in its rearmost position, its lower edge rests upon' the plate 36, serving lto hold the tumbler out of engagement with the rack formed upon the locking` bolt 25, but when thev tumbler' is moved forwardly, a notch 39 in the lower edge of the tumbler is brought .into engagementY with the plate 36, permitting the forward end of the tum-y blerto move into position between`- the teeth of the rack barcarried by the locking bolt. When the lever 37 is brought back to normal posi-tion after having produced a forward movement ofthe tumbler, as above described, the tumbler is prevented from returning with the lever by reason of 'the engagement of theI notchy 39 with the plate 36.

Means is provided for operating each of the levers 37 independently of the remaining levers,vsuchy means comprising a plurality ofpush' bars Lil() which extend through suitable openings in the face plate 22, as is clearly shown in Fig. l. In the construction shown, twelve of the push bars 40 are brovid'ed-, arranged in three tiers, as shown in Fig. 5, each tier comprising four push bars, as shown in Fig. ll. Each of the push bars 40 of the upper two tiers is provided with offset rear end portions 4l extending vertically so as to have a vsuitabley connection with the lower end of one of the levers 37, asis best indicated in Figs. 3 and 5. By the use of the push bars 40, any one of the levers 37 can be given a rocking movement in counter-clockwise direction, as shownI in Fig. 5,v serving to cause a forward movement of the correspondingly positioned tumbler unless such tumbler is already at they limit of its forward movement.' Thus, any oneof the tumblers 35 which 'is provided with the notch 39 in its lower face, may be moved forward into locking lposition independently i to the rod lll, as hereinafter described.` rllhe of the remaining tumblcrs. Springs 4Q, are mounted upon the push bars 40, bearing at their rear ends upon the plate 2l and at their forward ends having a bearing against suitable` pins 434, whereby the push bars are adapted to return to normal position when released after having been pushed rearwardly.

Means is provided for retract-ing the tumblers35 from locking'position. This means 75 comprises a rod 44 extending across the lock, in position to contact the lower edges of the tumblers 35 when in their forward locking posit-ion, as shown in Fig. 5. The rod t is mounted in slide bars -l-5 and 4:6, as is best shown in F ig. l. These bars are slidably mounted between vertically extending ribs e7 and 4 8 formed onthe inner faces of the side plates 19 and 20.V Anti-friction rollers 4-9 are mounted on the bars 45 and 43 for providing a` bearing for the bars `between the

plates

19 and 20. rit' their upper ends, the bars 45 and il@ are connected by a cross rod 50 by which motion is transmitted rod 50 in turn is moved by an arm 5l having a tapered forward end extending underneath said rod 50, being supported in position bya crossrod 52 at its forward end, and being pivotally connected at its rear end with a vertically disposed arm 53 mounted on one of the levers 37. As will be readily understood, when the lever 37 upon which the vertical arm 53 is mounted, is turned onl its pivot by a backward push upon the appropri- Yl0() ate push bar 40, the cross rod 50 is caused to V .rise by reason of the inclination vof the con-v tacting face of the arm 5l, serving thus 4to raise the cross rod fiel and the various tumblers which may be resting thereon, as the tumbler 35 shown in dotted' lines in Fig. 5 is seento be doing. It is thus seen that the several tumblers vare adapted toV be moved forwardly into locking position by the use of the appropriate push lbars 40, .11H each tumbler being given thisA movement iu- (lependently of the relnainii'ig tumblers, but W which may be that all of the tumblers n.)

standing in locking position are adapted to be raised out of locking position by the use of the push bar'correspondingto thev lever 37 upoir which thev arml is mounted.

As willrbe appreciatechthe arm 53 may be shifted from one to another of the levers 37, as may be desired, being removably l2()v CIK tumblers 35 through the medium of the cross rod 414, the tumblers are prevented from rising` their rear ends by means of a cross rod 56 mounted in lugs 57 carried by the side plates 1 9 and 20 in position directly above the tumblers, as is shown in Figs. 2 and 5.

Means is also provided for moving the tumblers 35 backwardly out of their locking position upon their upward movement. rlhis means comprises cams 58 formed on the upper faces of tumblers 35, as such tumblers are illustrated in Figs. 5 and 6. A cross rod 59 is movably mounted directly above the cams 58 between lugs 60 formed on the

side plates

19 and 20, coiled springs 6l being connected between the rod 59, and suitable portions of the framework, for holding the said rod 59 yieldingly downward. When the tumblers 35 are raised at their 'forward ends, the cams 58 are brought into contact with the rod 59, serving to place the springs 6l under tension, such springs in turn serving to cause a backward movement of the tumblers by reason of the inclination of the bearing faces of the cams 58. It is thus seen that by a backward movement of any one of the push bars 4:0, the lever 37 of which is provided with a tumbler 85, such tumbler 35 is moved forward into locking position for holding the bolt against movement in either direction, the lever being withdrawn backwardly by the action ot the spring 42 when released. Upon a subsequent backward movement of that one of the push bars 40, the lever 87 of which carries the arms 53 and 51, all of the tumblers which have, previously thereto, been moved forward to their locking position, will be retracted from locking position so as to permit a movement of the bolt 25, through the medium ot the handle 29.

As is best shown in Fig. 7, a tumbler 62 is adapted to be mounted in position in lieu of one or more of the tumblers 35. ln the construction shown, the tumbler 62 is of precisely the same form as the tumbler 35 but is mounted in inverted position. As shown in said Fig. 7, the tumbler 62 rests upon the cross bar 36, with its forward end in engagement with the rack formed upon the locking bolt 25. rihe forward end portion of the tumbler 62 is in the form of a cam, whereby, upon a` forward movement or" the tumbler 62, the end oit the tumbler is carried upward out or' engagement with the locking bolt 25, as indicated in dotted lines in said Fig. 7. The tumbler 62 is provided with a cam 63 upon the upper tace of the tumbler in the position the tumbler occupies in Fig. 7, the cam corresponding to the cam 58 upon its opposite tace, which is operative in the inverted position of the tumbler. The cam 63 operates upon the tumbler 62 for moving the tumbler backward when raised at its forward end in precisely the same manner as that already described in 'connection with the cam 58 upon the tumbler .35. The tumbler 62 is provided with a notch 6a on its lower tace, in position directly above the cross rod 411-. the tumbler 62 accordingly being adapted to remain in locking position when the cross bar #la is moved upwardly. In this way, the forward movement ot the arms 5l and 53, carried by one of the levers 87, is eiilected, without causing release of the tumbler 62. it will be appreciated, from an inspection of Fig. 7, that upon a backward movement oi the push bai' -10 connected with one ot the levers 37 which is provided at its upper end with a tumbler 62, such tumbler will be moved forward out of locking position, such movement being effected against the action of the springs 6l, which springs will serve to move the tumbler backward again into locking position when the actuated push bar 4:0 is released, and returned to normal position by its spring i-2. nasmuch as the tumbler 62 is merely one ot the tuinblers 35 in inverted position, it will be appreciated that any one or more ot the tumbler-s 35 may be inverted as desired, so as to obtain the alterna-.tive operation as above described.

TVith the

tumblers

35 and 62 in position, an operator knowing the proper method of unlocking the bolt 25, will push backwardly upon the push bar t0 corresponding with the lever 37 carrying the arms 53 and 5l, and at the same time will push upon the appropriate push bar or push bars corresponding to the levers 37 which carry tumblers 62. In this way all of the tuinblers 35 which may have previously been moved forward into locking` position will be moved backwardly out of locking position through the action of the arm 5l, and at the same time one or more tumblers 62 will be moved vtorwardly out of locking position, thus releasing the bolt 25 itor operation by the thumb piece 29. lVlien an unauthorized attempt is made to open the lock, the backward movement of each ot the push bars et() corresponding with levers 37 provided with tumblers 35 will move an additional tumblei` 35 into locking position, serving to make the device more secure rather than to have any tendency to release the bolt.

Means is provided for giving an alarm at any and all times when one of the push bais el() is operated for releasing the lock. This means, in the construction shown, comprises a bar slidably mounted between the side plates i9 and 20, as is best shown in Fig. 3.

The bar 65 is to be made of metal which is Y" an effective conductor of electricity. rilhe bar is mounted directly in the rear of the levers 37 at their lower end portions, so as to be moved backward into engagement with contacts 66 which are connected in Icircuit 69 havinga screw-threaded scat in'y therear face of the casing 15 adjacent to -the bar 65.' By moving the screw 69 forward into engagement with the bar 65,- wliich infiturn' is kin contact with the levers 37; the levers are held against a rocking' movement, serving to prevent an operation-'of the" loclr by the' use'of the push bars. p Y

Means is also provided fori'preventingan operator from opening the lock by pushing all of the push bars' 4l() backwardfiir unison. This means comprises a vertically extendingbar 70,L (see F ig. 5), which is provided with a hook 71: at its upper end which enga-ges` the cross barv 50, asis best shown in Figs." and 5; The bai-70 is' provided inits front face with aplurality of notches 72, which( are in a positionv and of aV shape to receive therein lsuitable portions of the' pushbars all), the bar 70 being mounted in' appropriate position for this purpose. y ln' the lconstructionlshown', the notches 72j are adaptedto be engaged by shoulders 78"formedin1the" push bars 40, as is best shownin Fig'.- 4.-

When an attemptis made` to press all lof thebars et() backwardly, three'of such bars are brought into engagement with the'io'd 70 serving'to hold thef rod 70 againstupward movement,- which in turn servesto' hold` the cross rod 50' against upward movement, thus preventing the' b'ar 44 from actingI to raise the tumblers' 85. TWhile Ihave' shown in my drawings only one ofthe bars 7 0, it will be understood that additional bars of this `type may be used if desired.

Means is provided for operating the tumblers for ieleasingthe bolt 25v from the inner face. of the casing'15 without the use' ofthe'v push bars 40'. This means comprises a.y yoke lever 74; mountedv upon pivot pins 75 oarri'ed by the

sidey plates

19 and 20, vas isbest shown in Fig. 4f. The armsof the lever 7l' are provided at their forward ends with a cross rod 7 6 which is'niounte'd in posi-tion underlying thecains 581er' 63 of thetumblers' 35- and 62, respectively. A spring 77 is connected with the lever 74 atits forward end, serving tohold the lever yieldingly in such position that the cross bar 7 6 shall press very lightly if at all upoir the tumblers. When lever 7 l is depressed' at itsrear end, as is shown iir -F ig. 6', th'ecross rod 7 6k exerts anI upward pressure upon the tumblers, serving to raise the tumblers'out of locking position'. The means for` operating the lever 75 inithis manner comprises an arm 78 ris- 1,4211 ,ses l ing from the cross bar of the' yolre lever 7 4V.' Means isprovided for depressing the arm 7 S and for turning the pinion 27 for operating the locking bolt 25. This means comprises a pin 7 9 pivotally connected withA the toothed wheel 27 and extending backwardly therefrom, being provided with a. lug S0 on its lower face which engages the upper end of the arm 78. r1`he rearfend of the pin79` extends backwardlythrough ai slot 8l in the wall `of the casin'gl, being provided on'its outerend with a thumb 'piece 82. By a downward movement vof the thumb piece 82,-' through the medium of the lugand the arm 7 8, the lever 74; is turned about its pivot pins 75 for raising the

tumblers

35 and 62 by the'l action ofthe cross rod 7 6. lVhile the'l tumblers 35 and 62 are held in raised posi y tion in this way, the thumb piece 82 can 'be turned, serving in turn to rotate the toothed wheel 27 for moving the bolt25 longitudinally either into or out of position for pro' jectin'g the' auxiliary bolt 32.

lVhile l have illustrated and described the preferred form of construction for carrying my invention into eifect, this is capable of variation and modification without departing from the spirit of the invention. l, there# for, .do not wish to be limited to the precise details of construction set forth', but de'- I sire to avail myself of'suchvariationsand modifications as come within the scope of thev appended claims.

Having described my invention, what' I claim as new and desire to secure by Let# ters 'Patent is 1. A lo'clr coiiiprising a slidably mounted bolt; manually operablemeans` for" moving said bolt; a 'longitudinally movable tumbler mounted adjacent to' said lbolt adapted,

by a movement a'cioss'the bolt, vto lockl the bolt against movement; means for mov* D the tumbler into locking position; and similarly actuating independently I:ting means for roclaing the tumbler out of locking posi tion. substantially as described.

2. A lock comprising a slida ly mounted bolt; manually operable means for movingsaid bolt; a long'itudinallyv movable tumbler mounted adjacent to' saidfboltv adapted,- by` a movement across thebolt, to lock the bolt against movement; a push bar adapted, by a movement in one direction, to move the" tumbler into loekingposition; and a second independently actingpush' bar adapted; by

tumbler into locking position; a spring for returning said push bar to normal position; the arrangement being surh that upon the return oi.l the push bar the tumbler remains in locking position; and a second similarly actuated independently acting push bar adapted; by an operative movement to rock the tumbler out of locking position, substantially as described.

4. il loci: comprising` a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt adapted; by a movement toward the bolt; to lock the bolt against movement; means for moving the tumbler into position to lock said bolt; latrhing means `for holding said tumbler against retraction trom locking position; and spring actuated means Ytor retracting said tumbler when released from said latching means; substantially as described.

A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt; adapted, by a movement across the bolt; to lock the bolt against movement; means for moving the tumbler into position to loclr said bolt; means adapted upon rocking movement ot said tumbler to cause a retraction thereof; latching means for holding said tumbler against. retraction until rocked; and means for rocking said tumbler for releasing it for retraction; substantially as described.

6. il lock comprising a slidably mounted bolt; manually operable means tor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt adapted; by a movement toward the bolt; to lock the bolt against movement; means for moving the tumbler into position to lock said bolt; a spring adapted upon rocking movement or said tumbler to cause a retraction thereolE 'from locking position; latching mea-ns for holding said tumbler against retraction until rocked: and means ttor rocking said tumbler Yfor releasing it for retraction, substantially as described.

'.7 lool; comprising a slidablv mounted bolt; manually operable means tor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted, by a movement lovvard the bolt, to lock the bolt against movement; a push bar adapted, by a movement in one direction. to move the tumbler into position to lock said bolt: a spring` adapted.. upon rocking movement or' said tumbler; to cause a retraction thereof from locking' position; latching means for holding said tumbler against retraction un` til rocked; and means operable independentlvY et said push bar tor rockingsaid tumbler for releasing it tor retraction; sub stantially as described.

8. A loel comprsin slidably mounted bolt against movement;

bolt; manually operable means tor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted, by a movement toward the bolt; to lock the bolt against movement; means for moving the tumbler into position to lock said bolt; a spring adapted; upon upivard movement of said tumbler; to cause a retraction thereo'l" from locking position; means for holding said tumbler against retraction until moved bac-lrivardly; and means operable independently of said first named tumbler-moving means for raising said tumbler t'or releasing it Yfor retraction; substantially as described.

9. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted, by a movement toivard the bolt;'to lock the bolt against movement; a push bar adapted; by a movement in one direction, to move the tumbler into position to lock said bolt; a spring adapted; upon upward movement of said tumbler, to cause a retraction thereof from locking position; means for holding said tumbler against retraction until moved upwardly; and a second push bar operable independently ot said lirst named push bar for raising said tumbler for releasing it for retraction1 substantially as described.

l0. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted; by a movement across the bolt; to lock the means for moving the tumbler into locking` position; and carnoperated means for roekingthe tumbler so that same can be moved out ot locking position7 substantially as described.

ll. A loclr comprising a slidably mounted bolt: manually operable means Ylor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted; by a movement toward the bolt; to lock the Vbolt against movement; means tormoving the tumbler into position to lock said bolt; a spring adapted; upon a rocking movement oli said tumbler.r to cause a retraction thereoii'irom locking position; latching means for holding said tumbler against retraction until rocked upwardly; and cam-operated means for rocking said tumbler so that same can be retracted substantially as described.

l2. A lock comprising a slidably mounted bolt; manually operable means tor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted by a movement tovvardthe bolt; to lock the bolt against movement; a push bar adapted, by a movement in one direction; to move the tumbler into position to lock said bolt; a spring adapted, upon upwardV movement of said tumbler, to cause a retraction therellO of from locking position; means for holding said tumbler against retraction untill moved upwardly; and cam-operated means operable independently ol said push bar for raising said tumbler for releasing it for retraction7 substantially vas described.

13. A lock comprising a slidably` mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt and adapted, by a movement toward the bolt, to lock the bolt against movement; a push bar adapted, by a movement in one direction, to move the tumbler into position to lock said bolt; a spring adapted; upon upward movement of said tumbler, to cause a retraction thereot romaloclring position; means lor holding said tumbler against retraction until moved upwardly; a second push bar operable vindependently of said first named push bar; a cam ,adapted to be moved by said second Apush bar; and means .operatedby said cam for raising said tumbler for releasing it for retraction;substantially as described.

vlll. A lock comprising, a slidably mounted bolt; manually operablefmeans for moving said bolt; notches insaid bolt;I a longitudinally movable tumblermounted adjacent to said bolt adapted to be moved intoposition Atoy engage said notches in the bolt for holding the bolt either in=locking position or in Lretracted position; means tor moving` the Jtumbler into locking position; and independently v.acting means for moving the tumbler out of locking position, substantially as described. f

15. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a plurality of longitudinally movable tumblers mounted adjacent to said bolt, any one of which is adapted to be moved into position to'lock said bolt against movement; and means for each oit said tumblers forimoving a tumbler into locking position independently of the remaining'tumblers; and cam operated means'for moving all ot said tumblers in unison out of locking position; substantially asdescribed.

16. A lock comprising a slidably mounted bolt; manually operable -means for moving said bolt; aplurality of longitudinally movable tumblers mounted adjacent to said` bolt, any one of which is adapted to be moved into position to lock said bolt against movement; apush bar foreach of said tumblers ffor moving a tumbler into locking position independently of the remaining tumblers; and a similar additional push bar operable independently of said first named push bars andhaving cam'means YJfor moving-all of said tumblersin unison out `oiflocking position, substantially asdescribed.

117. AlQCk-COmprising--a slidably mounted bolt; manually operable means `for moving vsaid; belt a-plnrazltvof longitudinally -mtu'- able tumblers mounted adjacent to said bolt, any oneof which is adapted to be moved into position to lock said bolt against movement; means for each of said tumblers for moving a tumbler into locking position independently of the remaining tumblers; cams on said tumblers adapted, upon upward movement of the tumblers, to move the tumblers out of locking position; and means acting independently' ,of said llirst named tumbler-moving means for raising all or said tumblers in unison lfor moving them .out ofloclring position, substantially as vdescribed. 1

18. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler having a cam mounted adjacent toV said bvoltiadapted7 when in normal position; to lock said bolt against movement, but adapted, when moved toivard said bolt. tov ride out of locking position; and means `for moving said tumbler toward said tially as described.

19. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler having a cam mounted adjacent to said .bolt adapted1 when in normal position, to locl; said bolt against movement; but adapted,

lwhen moved toward said bolt; toi-ide out oit looking position; means `lor moving said -tumblei'itoivaid said bolt; and other automatically acting Jfriction',means for returning said tumbler to locking position, substantially as described.

20. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler having a cam mounted adjacent to said bolt adapted. when in normal position; to lock said bolt against movement, but adapted.y when moved towards said bolt; to ride out ot locking position; means vtor moving said tumbler toward said bolt; .and spring operated 'Irivtionally engaging means 'for returning said tumblerzto locking position, substantially as described. Y

2l. A lock comprising a slidably mounted bolt; manually operable means for moving said bolt; a longitudinally movable tumbler having a cam mounted adjacent to saidbolt adapted; When i-n normal position, to loclr said bolt against movement but adapted. when moved tovvard said bolt. to ride out of locking position; a second longitudinally bolt, substan-l movable tumbler mounted adjacent to said bolt adapted, by a movement across the bolti to lock the bolt against movement; means for moving either of the tumblers toward said bolt independently of the other tumbler; and automatically acting friction means for returning` 4sai-d first named tumbler to locking position, substantially as described.

29,. A lock. comprising a slidablv-InQunted cfr bolt; manually operable means for moving said bolt; a longitudinally movable tumbler having a cam mounted adjacent to said bolt adapted, when in normal position, to lock said bolt against movement, but adapted, tv ien moved toivard said bolt, to ride out of looking position; a second longitudinally vmovable tumbler mounted adjacent to said bolt, adapted, by a movement toward the bolt, to lock the bolt against movement; means 'l'or moving either o'l the tumblers tov-'ard said bolt independently ot the other tumbler; latching means tor holding` said second tumbler against retraction 'from lockl ion; and automatically acting means tor returniiug said first named tumbler' to locking position, substantially as described.

2S. A. locl; comprising a slid-ably mounted bolt; manually operable means tor moving said bolt; a. longitudinallj,T movable tumbler having a cam mounted adjacent to said bolt adapted. when in normal position, to locl said bolt against movement, but adapted, when moved toivard said bolt, to ride out of locking position; a. second longitudinally movable tumbler mounted adjacent to said bolt adapted, by a movement toward the bolt, to lock the bolt against movement; means Ator moving either oi the tumblers toward said bolt independently ot the other turgibler; automatically acting means 'for returning said irst named tumbler to locking position; latching means for holding said 'second tumbler against retraction from locli4 ing position; otherI means adapted, upon up`r ward morement ot said second tumbler, to cause a retraction therein" 'from locking position; and means tor raising said second tumbler, substantially as described.

Q4. It lool: comprising av slidably mounted bolt: 'manually operable means tor moving said bolt; a plurality ot ,longitudim lly movable tumblers mounted adjacent to said bolt, some having rams thereon, a plurality oit which tumblers are adapted. by a movement towardrtlue bolt, to lock the bolt against movement, and the remainder ot which tumblers having cams are adapted, when in normal position, to lock the bolt against movement. but are adapted, ivben'moved toivard said bolt, to more out ot locking position; independentlv operable means for each ot said tumblers Yfor moving the tumbler toivard the bolt; automatically operating means for retraeting tie tumblers avhich are moved out of locking' position by movement tovfard the bolt; l other cam means tor moving out ot locl ng position in unison the tumblers vfhich are adapted to locli upon movement tovfard the bolt; substantially as described.

25. A lock comprising aslidably mounted bolt; manually operable means for moving said bolt; a tumbler adapted, by a movement toiv rd the bolt When in one position.,v

to loclr the bolt against movement, and having cam means adapted, when in reversed position, 'to locl the bolt against movement when in retracted position and to ride out ot locking position when moved toward the bolt; and means for moving said tumbler in either position toward said bolt, substantially as described.

26. A lock comprising a slidably mounted bolt; manually operable means 'tor moving said bolt; a tumbler reversibly mounted in position adjacent to said bolt adapted, upon a movement toward tbe bolt when in one position, to move doiviiwardly into locking engagement With the bolt tor holding the bolt against movement, and having cam means adapted, when in reversed position, to loel the bolt against movement when in retracted position and to ride upwardly out ot locking position when moved toward the bolt; and means tor moving said tumbler in either position tovvard said bolt, substantially as described.

27. A lock comprising a slidably mounted bolt; manually operable means 'for moving said bolt; a longitudinally iovable tumbler mounted adjacent to said bolt adapted, when in normal position, to lock said bolt against movement; a cam on said tumbler adapted, upon a movement oit the tumbler toward the bolt, to raise the tumbler out ot engagement with the bolt; and' means tor moving` said tumbler toward said bolt, substantially as described.

28. A lock comprising a slidably mounted bolt; manually operable means tor moving said bolt; a longitudinally movable tumbler mounted adjacent to said bolt adapted; When in normal position, to lock said bolt against movement; a cam on said tumbler adapted, upon a movement ot the tumbler toward the bolt, to raise the tumbler out ot engagement with the bolt; means tor moving said tumbler toward said bolt; a second cani on said tumbler; and a spring pressed part Yadapted to be. displaced by said cam against the action ot the spring upon the movement. oit' the tumbler toward the bolt tor returning the tumbler to locking position; substantially as described. Y

29. lock comprising av slidably mounted bolt; a rack bar connected therewith; a supporting member adjacent said rack bar; a. plurality of movable tumbl ers in inoperative position resting on said supporting member and adapted, upon a movement tol Ward the rack bar, to drop into engagement; therewith tor locking the rack bar against movement; and means for moving said tumblers into vand out @flocking position, substantially as described, Y

30. A lock comprising a slidably mounted bolt; a rack bar connected therewith, a` supporting member adjacent said rack bar; a plurality of movable tumblers in inoperllO ative position resting on said supporting member and adapted, upon a movement toward the rack, bar, to drop into engagement therewith for locking therack bar against movement; means Yfor moving said tumblers independently ot' each other toward said rack bar; and other means for moving said tumblers in unison out oflocking position, substantially described.

31. A lock comprising a slidably mounted bolt, a rack bar connected therewith; a plurality of movable tumblers adapted, upon a movement toward the rack bak, to drop into engagement therewith for locking the rack bar .against movement; means tor moving said tumblers independently each other toward said rack bar; other means for moving said tumblers in unison out ot locking position; an additional tumbler adapted, when at the limit ot its motion -away from the rack bar, to lock the bolt against movement and adapted, upon a movement toward the rack bar, to moveupward out oit engagement therewith; and means for moving said last named tumbler independently of the remaining tumblers, substantially as described.

32. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement; means for operating said tumblers for locking and unlocking said bolt; and means for holding said tumbler-operating means against movement, serving as a double lock, substantially as described.

33. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement; a plurality of levers for movingsaid tumblers; and a bar adapted to be held in position to prevent the swinging of said levers 'for moving the tumblers, substantially as described.

A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said boltagainst movement; a lever for each of said tumblers for operating it independently of the remaining tumblers; an arm adapted to be mounted on any one of said levers; and means actuated by said arm for moving said tumblers in unison out oi locking position, substantially as described.

A lock comprising a slidably mounted bolt; a plurality of tumblers forY locking said bolt against movement; a lever for each of said tumblers for operating it independently ,of the remaining` tumblers; an arm adapted to be mounted on any one of said levers; a cross bar extending underneath said tumblers; and means connected with said cross bar and co-operating with said arm for moving the tumblers out of locking position, substantially as described.

36. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt yagainst movement and adapted, by ijipward movement, to release the bolt; a leverior each .of said tumblers for moving it into locking position independently of the remaining' tumblers; and means extending beneath said tumblers acting independently of said levers .for raising the tumblers in unison out of locking position, substantially as described. Y

37. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement and adapted, by upward movement, to Yrelease the bolt; a lever for each of said tumblers for moving it into locking position independently of the Vremaining tumblers; a pair of slide bars mounted in vertical position on opposite sides of the bank of tumblers; a cross bar connecting said slide bars rigidly together and positioned directly below said tumblers; and means for moving said kcross bar upwardly for raising said tumblers out of locking position, substantially as described.

38. A.. lock comprising a slidably mounted bolt; a plurality of tumblersV for locking said bolt against movement and adapted, by upward movement, to release the bolt; a lever for each of said tumblers for moving it into locking position independently of the remaining tumblers; a pair ot slide bars mounted in vertical position on opposite sides of the bank of tumblers; a cross bar connecting said slide bars rigidly together and positioned directly below said tumblers; a second cross bar extending between said slide bars; and a cam arm movable underneath said second cross bar for moving it upwardly for raising said tumblers 'out of locking position, substantially as described.

39. A lock comprising a frame; a bolt slidably mounted therein; a plurality of tumblers mounted on said frame for locking said bolt against movement and adapted, by upward movement, to release the bolt; a lever for each of said tumblers for moving it into locking position independently of the remaining tumblers; a pair of slide bars mounted in kvertical position on opposite sides of the bank of tumblers; a cross' bar connecting said slide bars rigidly together and positioned directly below said tumblers; anti-friction rollers interposed between said slide bars and said frame; and means for moving said cross bar upwardly for raising said tumblers out of locking position, substantially as described.

40. A lock comprising a frame; a bolt slidably mounted therein; a plurality of tumblers mounted on said frame for locking said bolt against movement and adapted, by upward movement, to release the bolt; a lever for each of said tumblers for moving it into locking position independently of the remaining tumblers; a pair of slide bars mounted in vertical position `on opposite side's of the bank of tumblers; a cross bar connecting said slide bars rigidly together and positioned directly below said tumblers; an additional lever adjacent to said first named levers; a cam arm pivotally mounted on said second named lever and extending forwardly therefrom; a support on said iframe for the forward end portion of said pivoted cam arm; and a second cross bar extending between said slide bars and adapted to be engaged by said cam arm for moving the first named cross bar upwardly for raising said tumblers out of locking position, substantially as described.

41. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement and adapted, by upward movement, to release the bolt; means for operating said tumblers; and means eX- tending beneath said tumblers operable from the rear face of the lock Jfor raising said tumblers independently of the rst named tumbler operating means, substantially as described.

42. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement and adapted, by upward movement, to release the bolt; means for operating said tumblers; a cross bar eX- tending underneath said tumblers adapted, by an upward movement, to raise the tumblers out of locking position; and means operable from the rear face of the lock for moving said cross bar upwardly and then moving the bolt into or out of locking position, substantially as described.

48. A lock comprising a slidably mounted bolt; a pinion by rotation of which said bolt is moved into and out of locking position; a plurality of tumblers for locking said bolt against movement and adapted, by upward movement, to release the bolt; means for operating said tumblers; a cross bar extending underneath said tumblers adapted, by an upward movement, to raise the tumblers out of locking position; a pin connected with said pinion but extending rearwardly therefrom for turning said pinion; and means actuated by a downward swinging of said pin 'for moving said crossbar upwardly for moving the tumblers out of locking position, substantially as described.

44. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement; a push bar for each of said tumblers for operating it; means acting independently of said push bars for moving the tumblers out of locking position; and means serving, while one of said push bars is held at the limit ot' its operative stroke, to prevent operation .of said second named tumblermoving means, substantially as described.

45. A lock comprising a slidably mounted bolt; a plurality of tumblers for looking said bolt against movement; a push bar for each of said tumblers for operating it; upwardly movable means acting independently of said push bars for moving the tumblers in unison out of locking position; and means serving, while one of said push bars is held at the limit of its operative stroke, to prevent upward movement of said second named tumbler-moving means, substantially as described. i

46. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement; a push bar for each of said tumblers for operating it; a cross bar underlying said tumblers and adapted, by an upward movement, to move said tumblers in unison out of locking position; and a vertically disposed member adapted to move upwardly with said cross bar and provided with a notch adapted, by engagement with one of said push bars, to prevent upward movement of the member when the push bar is in its rearmost position, substantially as described.

47. A lock comprising a slidably mounted bolt; a plurality of tumblers for locking said bolt against movement; a push bar for each of said tumblers for operating it; a cross bar underlying said tumblers and adapted, by an upward movement, to move said tumblers in unison out of locking position; and a hooked member adapted to be removably inserted in position adjacent to one of said push bars with its hooked portion in engagement with said cross bar, said member being provided with a notch adapted to be engaged by one of said push bars when moved to its rearmost position for preventing upward movement of' the cross bar, substantially as described.

In testimony whereof l have signed .my name to this specification in thepresence of two subscribing witnesses.

GEORGE F. MAYER.

Vitnesses JOSHUA R1 H. Po'r'rs, CLARENCE E. THREEDY.