US1610224A - Lock - Google Patents

Description

Dec. '7, 1926.

C. DALBONI ET AL .LOCK

Original Filed Jan. 4, 1924 2 Sheets-Shet 2 at 'itsinner end, and open at its opposite end, which ispreseiited to the outside of the door, so as to permit the room or other space, lentrance to which the door controls, to be entercdby manipulating thelock from without.y The casing has aflange 6 at its i' outer end to abut against the outside of the doorarou'nd vtlie'edge of the recess 'that re- Vceives it. We may use a screw l7, passing through theinner end `of the recess. into'a hole 8 in the innerv end oi the casing toV vmake the/casing fast. 'l This inner end hasV 10, `and Vmoved in an-opening shown diagrainmatically at 14 in thebolt 3, so that when the plug'10 'is turned inthercasing 5, the bolt can be projected or drawn back.

The key-plughor Abarrel 1,0 comprises a front orouter end 15 and a `rear orV inner end` 16, connected byV acore or body17 otV reducedv thickness'fand placeda little to one side ofthe center or long axis of the plug'. In the front end; is akey-hole 18 igure 3) leading to a key-wayiin the bottom oi' the e endsvof the recesses 19. VOn thev top ,of thebody. ln therinner face or the core ,areV ytransverse recesses 19, separated by ribs 20,

and receiving pinv tumblers 21 (Figures 9,v 10 and 14); Each tumblerhasa row of tee-thv 22 along one edge, and ,presents these teethsoutwardly .through the open sidesot` vthe recesses.

The recesses are open/at the tops to receive springs 23 which tend to press the tumblers down against the lower core is a cover orretaining plate'24 to hold the springs in and a similar plate closes the bottom of the key-way along the underside of the core 17 `The recesses19 communicate with`the 'keywayv past their lower ends 25,

so that a key can raise the tumblers 'and screws 24?L hold the cover 24 in position.'v

Each tumbler also comprises `not only a member having teeth 22,.an`d a smooth'surface'26 beside the teeth, but ralso aV member 27 yhavingsimilar teeth 22j-on one face, and a ,projection28, bearing s .errations 29 o n its opposite face. The teeth of the member 27 canmesh with the teeth 22, konthe Vother member,i and by varying theengagement oft' the two members, the.y -e'iiective length 'of each tumblerfgcan be altered.V At 30 is a con` ltrolling elementhavingr slots31.V 'The elef ment'fits. against the core 17, overthe tumblers,vand the projections 28 enter the slots; when thelteetli 221er the` two membersbf eachf tumbler aref'engagingv one another.

. Therefore, one vmember of each tumbler 'can slide up'and down'in its recess 19, andI lihe other member caii/movegup and down with Yin; the ,projection 28, sliding in the adjacent slotY 31,'butv none of the nieinbers`27 can Leidas@c move' sideways over upon the'rsmooth surace 26, unless the element V30 ismoved.

This element is not as long as. the core 17.`

ltyhas a projection 32 at one end'to enter a notch in the head 15, and a projection 33 at its oppositeend vto enter a similar notchV in thehead 16. Gn the projection 32v may be a small knob strikes the inside tace ofl the endV 15. Nor- 34 to allowy the element to be pulled forward a. little till'its front edge mallyl the rear edge of the element isr heldf against the head 16 and the .front edge'awayk 'from the head 15. vItis retained in such po sition by a keeper 35, which can releasethe element. This `keeper is a plate, to overlie Vthe element 30, and has a longitudinalslot 36. It al'sohas projections V37'at each endl Von one face, to extend out beyond the pe-` riphery of theends 15 and 16 into aper-y tures 38 of the casing 6 (Figure 1). In line withprojections 37 are guide arinsgpro-v y jecting from thevopposit'e face of the keeper 36, to move in guideways 40 in the inner faces ot' the ends 15 and 16 and throughthe core 17. On the ,opposite or outer `face of the coreV is aleaf spring`g41, pressing at its SEU ends on the Vends of the arms39 andheld tast bya'screw 26 in the center. l The keeper 35 is also pressed upon by a spring part 42', opposed to spring 41,v and mounted on a 'shaft 43-having journals 44 at Vits ends toengage the heads 15 aiid`16.

The members 27 are wider-than the slots 31 lexcept for the projections28.

On the lower side off'the projection 33 is av The plate 35` has at its adjacent .end aboveV one arm 39, a third 'arm 46 to move Vnotch 45.`

ina guide way 47 in the headlG and'coi'e 17. This arm has a notch 48 in lits` upperV edge. vNhen the tumblersare allmoved to l l. Ii:

bringthe projections28 into registry with ,i

than the spring part 41, forces the keeper'35 theslot`36, the spiing'42, Vwhich. is stronger Y against the element and arm 46 moves its notch 43 intoY line with the lower Vedge ot the projection 33. jThen the head 34 can be drawn out to pull the element forward and disengage the members 27 n YWhen the lock is in such position thatjthe boltv 3 is in the strikeV plate 4, Vvthe tumblers will be in various positions, with the projections 28 out offregistryivith the slot 36. See Figure 17. "lhese'l projections 28now 4hold the keeper y35 away from the element 30ri'orcing the projections or ,dogsg37 into the opening 38. 'Hencevftlie plug Vor tumbler carrier 10 cannot turn.1 The arm 4'6'has'its .Y

upper edge,v nbeyondpthe notch l V48, in the .notch`45 of "the element 30,1and the elementi i fis held in. fldfhon vthe right'key `iswpushed into the hole-*513,'tlie tumblersj arepushed up,

in the Acore' 17 till `all thevgprojections 2,6,"

register ywithl the slot 36.` V',"lherithe spring `42 overcomes the spring 41, and''the Vdogs 37 are Withdrawn 'roni the openings 38 in the` Leila lmove the cam-13 and retract the bolt. project theV boltV 'againr` the 'plug 1s turned back' to jriginal position andv thevkeywith# drawn. A

, 'To change the combination, one irst pulls out the key used" to'v Withdraw the boit y3.

Thenfhe pulls the head 34'tomovefthe rin-einp-` bers Qfin'to the Vpositions' shown in Figure =f :18, the element drawing the members 27 side- Ways `with the'projections 28` sliding' in the slot 36.15B a'nevv keyisfinserted into the ,plug lOQ'the members of the tumblers Zl'jhav-v ling Vthe teeth 22 j and smooth surfaces will 'now befforced into 'positions corresponding p thenl be completed through the battery bell Vto the heightI of thefteeth on thejnenA key. Then theV element is pushed `floackand the new key made to vturn theplugto shoot i' an arm) Withafwrist projection 50,'"orining a er1-lnk, received in a' notch 51 in the end i6.V In the notchf'is aY spring 52v pressing 1' ontvvard.` This crank" normally `presses `againstl the vkeeper Wienthe .plug is first turned to Withdraw theb'olt, this crank is carried lto an opening such y as the opening 381A adjacent the head 16,v afterV "the adjacenty dog 371eaves this opening, andthe spring e V(it-hen moves thecrank to rotate the shaft and rela; `the spring 42;' 'Hencerthe spring 41 can act-again to v-ipush thef'guides andv Vare held 'jby theirV teeth; int their :new

f relativepositions"andfafter thefbolt 3 is projected once more the newkey'must be used to L'fopenthelocki The dogs 37 Lproject. far enough vfrom the i keeper 35to enter vthe apertures 38 Whenthe projections 28 do notregister with the'slot V365lottare Withinv the compass-of theheads 1-'5 andv'l'vvhen theV spring 42 `forces the keeper .356 against element 30.**- When the' crank is released, tlie"`spring il can move. the arms 39 to movethedo'gs `37,andkeeper "35 V`out-'Ward just ,a littlerbeforefthe-dogsf 'strike the: inside of casi-ng Y5.A

fyflthe cam 13 and openingl'i'xveresheped '"p 't-"ofvirequiref,1 movement to the leftinsteadof JQ theiight (Figures ll iand 2f' 'to Withdraw ',{with,the'adjacenti-dog-B? awvayffronithe 2id-V'A74 Fja'eent'ppening'f38g'. Thenanotheropening;V 'xvoiildhe providedpin the ic-asing 5'to're`ceiye A 'thejxvrist vprejection- ,50'E Whentheplug lOhas Ibeenijotat'edjagitar asfneeded.l "Thisprojecf ti'OI1f50'fmayfstiekout beyndv'thejrimof the f purpose 'shaft 43 has at one end of this projectionlin 'Figure l 'is indicated at 53 Where the casing awayi". e At 54 arepiecesof insulation on'eachfside 'head' l16,v `but not *thearni 19. "lhempositionA 6 is shown" broken of the opening 38. at the inner yendothe casing 5*(Figure l) yandjon'these pieces'is'made fast 'aU-shaped contact element 55 'congroundedon lther strikefplate 4f 1f LOne '.nected by'a Wire 56 to a battery` 57V through a bell vor alarm :device: 58 the battery being should insert the' Wrong key and turnvthe-,l

plug 10 yWithoutdrawingback thed'ogsf37, the innermost dogjwould touch one side orl the other ofthe element 55. Aroircuitivould Wire 56 vand metal p'ar-ts'oic the lock, and anD alarmgiven.V In' the strike'plateisa spring 1eaf5955andfat`60"is a-binding post, insulated ik l by 'a sleeve 'orbus'hing 6l.A "When the door 2 is fastenedthe bolt .3'touches the-'spring 59, Aandfvifone tries to forceY the door open', the .spring 59V is made totouch' lthe inner l*endroi- 'the post 60.l Analarm will againresult. Hence Vtheflock cannot Jbe picked nor i theV door jimm'ied open Without avvarning bev Y.

ing automatically given.

l yThe projectiofns'v28 may 35;l but We 'show lthefendsfof the" projections Y be smoothfjontheir f, ends :ind so'jniaythe'inside-face `of the keepery WithserrttionsQSandtheyplatejvvith .s'imi-V lar serrations 62. fWi'th V-these" serrationsji the lookv cannot be picked. -To pick it,1one would4V have "to insert avtool'inthe key hole lSIan'd try to I noveffthe tumblersfsideways to-iind prevent: the', ri

v`1 10uA soundv When-the projections oome" oppo-' fsite the'V slotf365; Withtthefserrations, 'asfsoon e' as" the tumblers are moved *'sidevvay's,` v`lthe members. 2 7 Will bind-'against-.the keeper 35.l

Y 1 ght'key from"nr'ioving.'the lturnble'rs "upward f Y *,-jThe `serrations6 2 of the keeper ,-E S 5;,fand-v l Athe* teeth`729, f may' be' lower and' less abrupt- 'tharr the teeth 22dy ofthe two members?"inaking vup each '.otfthe'tnmblerslQZ, lSo'that. when -the Idogs 37 arein the'` Openings 38, vand-ja-A key Vfis inserted inthekeyslot 18,--"to move up the ltuniblers andfbrin'g'the t prOjGGtions v.287.into

line With-fthe' slot v13.6,' thef tvvo 'rnembers`- off 115i?V each jtuinbler rnai-ntainif their engagementLV f. v

H `Our lock is very: usefuljbecauseV it( enablesf -`y f VjtheoWher of-V an apartment', the entrance to Y {"Whiclr the lock controls, `to "changev the `eomjbinationofthe lock at-W'iil rnerel'yfby chang# 'ing. thekey; Atfthe:f1-lock isni'ounted;iupo'n',l dooro-fthe v 'ownersfhome hecan' use; anyA key he Wants tof'kvo'pen and vclose the flock; s Phe goes in and one-tand change 'his .key; .Y

Willjfffsuchi lock;.ijsxemplo'yed v'orf-Lth occnfp anti E can enter with the. kev lWh ieh ist? n..

fas

also cannotbe :pickedand always will give Warning if tampered with. j

:The Wire 56 can be led from the batter-y to a metal plate 63 in the door sill 64. The

door l may have `a bushing' 6 5, With a hole for a contact brush' 6,6 having acollar 67, a spring 68 in the bushing pressing the brush downto keep. `'the brush against 'the *to* the element 55. Vthe inner side 63. 'The collar T'engages'the endet' ushing to hold the brush 66 inside'the From the 'bushing a Wire `69 leads This Wire 69 may be on of the door 1, sol as'to'be pro- .plate the b bushing.

jected. e Y f lWhile theL dog` 37 at the inner end of the plug Will strike against the element 55 at one side or the other if the lock is tampered With, the Wrist projection Will not reach the element 55, evenif thisprojectien enters the said opening when the right keyopens the lock. The end L of the .projectionw() 'and the other parts vcan easily, be so proportioned and shaped as to give this The recess to receive the casingV 5, is cut fout at 70- (Figure y2) enough to make room bclieve to be new and desire to secure and vrocable pin tumbler: comprising members. l

tuted of members arr f protectfby Letters Patent @fv the VUnited Y States isti-vf. e

.1; Infalock, the combination `eta recip- Ahavinef teethV for the ad'ustable envafement gp l Y I C t3 ,J of said members, a controlling element vfory said tiimblers, and a keeper having a 'slot Y Yto be controlled by theztumbl'ersfsaid keeper having e n one Y or moreY catch projections thereon. Y y Y 2.' Ina lock the combination 4of-a recipro'cable: pin. tumbler comprising a member `having a-prejection, a keeperto be con-Y trolledby the tumblers, and serrations on.`

V.the-keeper and Ythe. projectionsV ,of the f having V tions wheny ment, catchjprojections Aon .thejkeepem the*V tumbler tofprevent the picking of the lock. 3. In .a lock the combination Vof acasing,

Y -a rkey-plgug'fin the casing, tumblerfin the rkey-,plu

bers for adjustable engagement with `each g, eachtumbler consisting of niemother, onek member having projection serrated at itsv extremity, ja controlling element slots to receiveithe projections, a

keeper to -be cont-rolled by the tiimblers,'the Vkeeper having a'slotto receivey said projectlie projections move into alinecasing havingopenings to receive said projections, a spring to engage 'tliekeeper and j imp el-said catch projections intosa'id open'-V v ings, a shaft to which the spring isattached,`

n 51. a': crank on said shaft, the casing having alelement, and a knob on theelement i the lock.

' releasing the casing according to the posil vtion of the tumblers.

. anda partto engagejlsaid keep recess to receive the crank and relax said spring, a vsecond spring on the plug, arms on the keeper to be engagedby'said spring y in opposition to the Yfirst spring, a notched armV on the keeper to hold and release the accessible fromk theV outside ofY the casing, the keeper being serrated to cooperate with the 'seirations on the projections of the members of thetumble'rs vand prevent the picking 'of 4'. A lock comprisinga pin tumbler con-. stituted of members adjustablewith respectv to each other, and includingra keeper to hold the members in 'adjusted position, the keeper being movable when the tiimblers havev been actuated to'fpredetermined posimona j I p 5. A lockconiprising'a casing,` a plug' received in the casing, tumblers 'inthe plug. each,comprising ladjustable members, anda keeper for maintaining "thefinembers in aujusted positions, said'keeper engaging or ,6. A lock comprising a tumbler constii tuted of members adjustable With respect Ito .each other, and a keeper having teeth to VViold' Vtliemembers in adjusted.Y position.` I

-j 7. A lock comprising a p inltfumbl'er 'constit-uted of members adjustable With respect to eaclibther, and. including a keeperfto hold tlie'inembe'rs in ,adjusted position,` and apart4 toY engage ,andV releasethe keeper to A.maintain the adjustmentY of said l members or enable said adjustment to be changed;

8.v AV lockcomprising a tumbler .constivativeto each other, one otsaid members `having.altoothe-d surface, a keeper having teeth Vto engage said last-named member, j l f j l er kto make the teeth oi thekeeper mesh with the teeth of said flastlnamed vmember, to Ahold said. members inV adjusted position, v.or release said keeper to enable the members to bereadjusted.v`

aiiged to be moved relv 9. A lock comprisingfa plug carrying one ormore tumblers, eachtiimbler comprising adjustable. members, anda controlling eleting movement thereof by a key, but movable to disengage said members to. permit the adjustment thereof yto vbe changed *n before theyV are again -ii'ioved into engagement lwith each other. l 'y Y i0. A. lock co prisingr a plug, `one or more .tumblersV mounted. to.4 vreciprocate on said plug, a controlling elementliavin'g slots to permit thev displacement.y of said `mem- 1 'bers When'akeyyisiiisertedjint-o said plug,

`eachl Voi' saidtumblers comprising-tivo menibers adjustably engagingeach'k other, the element' being movable toactiiate one mein# ber et Veach otfsaid -tiimblers'sidewise'and ment Vengaging Ysaid members and permit' z said members other.

i l disengage itfrom' the ,other member to enable the adjustment v,to be changed. before are 'reengaged with each l1. A lock comprising aplug having one or more tumblers, each of said tumblers comprising v members f. adjustably engaging' each other, and a keeper for said tumblers,

Vsaid keeper having a ,slot to release one] iu Vmember of each'tumbler upon the-tumblers Y being moved `by a key 'into predetermined Y Vposition With respect to said` slot, for read-A 1 justment Vot the relative positionv of said members. Y. 12.` A lock comprising a plug,`one or more tumblers reciprocablyv mounted insaid plug, each of said .tumblers comprising members adjustably engaging each other, `a

keeper on the plug for said tumblers, Vsaid keeper having a slotand mounted to release said tumblers When thelatter are actuated byva key into predetermined position With` respect to said slot for readjustment of said members, and a spring on the plug normally engaging the keeper to hold it in operative position Withf respect to the tumblers, but releasable When the keeper is in position, to

permit said members to be adj-usted fand reenga'ged With each other. 4

13. 1A lock comprising` 'a plug, a vplurality of tuinblers mounted to move in said plug,

each tumbler comprising members adjust- Y vably engaging each other, a controlling elev ment to aetuate the members into 'and out of engagement withk each other, a keeper onl the plug, shaped, when the tumblers are key, to release the tumblers, and a spring normally causing the keeper to maintain said members in the desired adjustment, but releasable When the tumblers are moved kto the'aforesaid predetermined position, to

leach other, and including a keeper to hold the `members in adjusted position.

lIn testimony whereof, We .have signed actuated to predetermined position byA a.-

our ynames to this speeiicationthis 5th day Of October, 1923. Y

CARLO DALiBONI. ANNIBALE GASPERETTI.

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