US1645298A - Lock - Google Patents

Description

J. H. SHAW LOCK Filed April 25. 1924 2 Sheets-Sheet 1 2 Sheets-Sheet 2 Oct. 11, 1927.

J. H. SHAW LOCK Filed 'April 25. 1924 Patented Oct. 11, 1927..

UNITED S TAEE SZ 1,645,298 PATENT err-tees;

JOHN .rrssnaw, or new Haven, eonnnorioor, ASSIGNOR TO sanenn'necomrany,

orrn'nw. HAVEN, CONNECTICUT.

LOCK.

Application fi'ledApril25y1924. Serial No.--708,918.

This invention relates to locks, and more particularlyto locks adapted "for use on the key *ofhigher order, such asa master or emergency key. In-many instancesit hap pens that when the maid seeks-to gain admission to a room so locked with theusual keythe key is prevented from turning by wards or 'mechanism of thelock, and when considerable*pressure'is applied to it, as is often done,- the-keybecomes mutilated or twisted, and is even at times broken off in=-the lock, thereby causing considerable trouble and Y inconvenience. v

One object of the present invention, therefore, is the provisionof a lock so arranged that when the door-is' locked from the in side and it isattempted to-'unlock it from the outside some ofthe keys at'least will 5 "rotate idly in the lock-and will not be resisted bythe lock mechanism, so that there will be no tendency to deform 'or break the kevs.

further object of the invention is the pro-visionot' a novel to'ri'n ot mechanism whereby when the bolt is dead-locked "the 7 bolt operating mechanism will be ;movedout :of'thepath of a rollback operated by some otthe keys so that the roll-back may turn idly without resistance.

A further object ofth'e invention is the provision oi-a novel form of "lockingmechanism wherein the roll-back, operated by at least some of the keys from the exterior of the door,"wiil turn idly without contacting when the door is deadlocked.

To these and other ends the invention conwith any part of the locking mechanism sists in the novel features and combinations or parts i to be hereinafter descr bed and claimed.

in the accompany ng draw1ngs: F 1g. 1 is a fragmentary front elevational view of a door-and door frame upon which is mounted an indicator lock embodying my improvements;

Figr2rlis an edge view of a door-having mountedtaereon azlockiembodying my inventron;

Fagz'ivcissaa-side viewnot the lockcase-with I no part of'th'eipnesent .inventi'on, H stated'that' this bolt is retractable from the:

guide lugs of the case to normally= urge the cover plate removed to show-thelock: mechanism; 1 1

Fig; 4 is a view: similar to Fig.;3; .but showing the dead locking mechanism in operative position; i

Fig. 5 is a'secti'onal viewthrough the incheating mechanismwn line -5+5 of Fig;-j3; Fig. '6'is a-view similar toFig. 5'show i-ng the parts in the'position in which'the indicator button is-depressecl,"

Fig. .7 isasectionalhview on line7:'7 of F ig.-t, showing the positionaof: the pantsra when the. indicator is held iagainst fldepresslon;

lig. 9 is a section onzline 9+9 of F igg ti Inthe drawings I. have shownmmy ima provements 1 applied to as lockil having the usualmortisecase 20" provided withia fronti plate 21, which'may becovered'byan orna-y mental face-plater2l lithe lower part of the .lock caseismounted'a latch-bolui23i- While the latch bolt mechanism: per se forms inside by the usual 'knob'spindle acting on a hub 24 to draw backa retracting shoe on yoke 25, and. in the-particular: case 'illustrated, the outsideknob whichis connected 135 byits spindle to ahub' member 26='-Iis perf manently dogged'against movement-*by a portion 26" on the hub member extending between the lugs 27 on the case. The knob R shoe25 has a shoulder 25 disposed in front of the cross-head 28 onthe' rear end of the: latch'bolt stem 29, whichstemis surrounded; by the usual spring 30 reacting against "the the'bolt 23 to protracted position: v v In the upper part of the case'a cylinderlock 31 is. serewedin at the outer side and this lock through keys tobehereinafter dej scribed isadaptedtO actuatea la'tch' re tracting member 32 pivoted in the upperpart of the case at 33-andhaving its lower extremity 34': disposed in front of the cross head 28. e In the form of myinvention shown, the;

usual dead-bolt has been omitted, and in stead there is provided a flat slide member" or blind bolt 35 provided with-talonsc36-;-a d--- jacent the lock 3l andacut away portion7=37 between these 'talons at the-forward, endof the slide- As shown "more -particularly in- Fig. 8 is a sectional :view-on-linei8 8r-ot behind these talons', while the other roll-back is disposed in the plane of the talons. A

fence or stump 38 formed rigidly with the lock case is received in a cutaway portion of the slide between these talons and the forward edge; This fence guides the slide in its reciprocating movement in the lock, and iteis also guided in a similar manner at its lower side by one of the lugs 30 Below the talons the slide has a cut away portion 39 to receive a thumb-turn hub 40, which is journaled in the case in a suitable manner. Inthe lower part of the cut-out or aperture 39 a gate 41' is formed to cooperate with a wing 42 on the thumb-turn hub.

The slide is provided with a tumbler 43 pivoted on a post 44 at the forward part of the slide so as to be carried by the latter, and this tumbler is formed with a projection 45 extending between the talons 36 in a position to co-operate with a roll-back of the cylinder lock 31. This tumbler 43 is provided intermediate its ends with a'lug 46 to co-operate'with the post 38 in looking the slide either in its retracted or-advanced position Below the tumbler 43 and pivoted to the "lock case at47 'is a'second tumbler 48 which co-operates withvthe thumb-turn hub when the latter is actuated to move the deadlocking mechanism. Thistumbl'er is provided with a spring 49 reacting against a post 50 rigidly: formed withthe lock case. The main partof the tumbler 48 overlies the body of the slide 35, and atis free end the tumbler is-provided with notches 51 and 52 which converge toward the upper edge of the tumbler. The spring 49 exerts an up: ward thrust upon the tumbler so as to keep it firmly seated against the thumb-turn hub with thewing 42 engaged in one or the other of the notches 51 and 52. The tumbler, in this mannerexerts such an upward thrust on the wing 42 as to holdit,in cooperation with the edge of the gate 41, in such a manner that the slide will be locked in either its retracted or protracted position and cannot be moved out of such position, except by the actuation of the thumb-turn pub or'the lock 31 by means of the proper The two tumblers are joined by means of V a connector 53 which may take the form of a small plate, as shown in the drawings. This plate isvprovided with upper and lower pins 54 and 55 projecting rearwardly therefrom, the pin '54 being received in a slot-56 in the upper tumbler 43, and the lower pin 55, being secured in the lower tumbler. It will be apparent that the slotted connection between the connector-plate 53 and the tumbler 43 isnecessary due to the fact that relative movement of the tumblers must be permitted as one is mounted upon and moves with the slide, while the other is pivotally carried by a post rigid with the lock case. In the construction shown, the slide 35 may be shifted together with the tumbler 43 without disturbing the connection with the upper movable tumbler with the lower tumbler mounted upon the fixed post. The upper part of the connector-plate is preferably notched or bifurcated, as shown at 57, to receive between its forks the post 38. The post thus guides the plate properly in its vertical movements when the tumblers are depressed preparatory to shifting the deadlocking slide 35.

The slide 35 is provided at its lower side with a finger 35 disposed rearwardly of the cross-head 28 upon the end of the latch bolt stem 29. As shown in Fig. 4 when the slide 35 is moved forwardlyto its dead-locking or operative position this finger is moved to a position to engage behind this cross-head to prevent retraction of the latch bolt.

The cylinder lock 31, preferably of the kind shown in the patent to H. G. Voight,

No. 1,243,016, granted October 16, 1917, is provided with the usual case 58 and key plug 59, the latter being controlled by the usual pin tumblers (not shown) cooperating with the key plug in the manner described in the patent referred, to, and a pair of roll- backs 62 and 63, the former being rotated alone by all of the keys to the lock, except the emergency key which rotates both rollsbacks.

These roll-backs are spaced apart by parallel planes by means of a washer 64, and it will be apparent that while the operating projection 45 on the upper tumbler 43 is disposed in the plane of the roll-back 63 it is without the plane of the roll-back 62, the latter turning idly behind this projection, and thus not being capable of advancing or retracting the slide 35. i

The latch retracting lever 32, prviously described, may be actuated from the cylinder lock by means of a lever 65 pivoted on the slide 35 at 67 and carried by the slidein its movement to and fro within the lock case.

The free end 66 of this lever bears upon the upper edge of the lever 32 when the slide is in retracted position, so that by depressing the lever 65 the lever 32 may be actuatedtto retract the latch. For this purpose the lever outxthehrangeot movement} of :the trollrbaoks the :lOCkeCilSB is :astopgzmember 88' :general-Ly 62 -and..63,wso' thatnwiththe SlldG'ilII'thlS,PQS-l: tion; it :is eimpossible'ztoa operate ethe. :lzitohk retraetingrglever by means :of ;tl1&vl0k 31.. 5 If; when the par.ts are-gin this-:jposition;

lock is operated!-Eby=;any;keybut the emergency key; theroll-baoki GQ rotates: freely and ;idly.aback.=;ot the talons 36tand:icle.ar1ng:- the end "of the lever 68 sothat, no effect-what everwillbe producedlon the lock ineehanismn The.- r emergency; key; however-,2 causes. the rotation-"f both roll-backs andr'if usedriaty;

this timerwill serve through the. r0ll-baok63,r.

firstxto move theuslidet'rearwandly. to the posi-t-ionrshown: in Fig. 3, :in which the part r 68 isagainnina position-"to :be =engaged-s" by either roll-backs, and a continued:rotation:

of: the look by the emergency-key: or. :the rotation of the =roll -baolri 691 b). 'any'sofi :th'e

keys', will "serve to retract the slateh throughi;

the lever 68 and; 322

In order to:dog thelrnobwhen {the latch bolt 'is =:dead-locked ;i I have shown: a:: lever 71 pivoted up0n the post: 50 and engaged-at itssupper end with the slidev85," so chat as the slideis moved "forwardlythe-lower end 5 of this lever will'bemoveddownwardly and" rearwardly behind a projection on the-shoe to prevent movement; of the latter;

In order toindioate to a person Without the room-whether or not the doorhas been locked from-the --inside', or has been-locked with a'proper ky (in this oasethe emere gencvkey) fronrtheoutside, l have' pro vide'duponthe door an-indicati ng mechanism similar to thhtshown "in* my co-- pending application, Serial N5; 574 ,396,"filed-- Jn1y 12,:1922;0 "which this application is-a continuationin -part." Pivoted'Tat '75"to the-= 4 "rear face of tlie stri-ke plate 76isa lever 77,[

one end *of "whieh co-operates- WVlt-ll' a pushbutton 78"mounted in an-extensioni79 in the strike-plate the other end-- ot this lever co-zopera-ting wit'h the head 8t) of a springpressediindieator 'controlle'r plunger mounted in-a cylinder '81 in 'thestrike-plate and? provided with a shank82 whi-ohfiis' adapted to be;proi'eotedfthrough" an opening 83 -in the-fate of thepla'teLfl A coilspring SEis mounted within the cylinder '81 and "react-s;

against-the rear of the face of the; strike-- plate andagain t the head of the'plungen to normallfvhold the-plunger inits retracted position within the strikeplateand'bv means *ot the lever- 77"'t0normally holdthegpush' button v78 imits-outer position-as shownrin'" Fig. 5. The pushbutton isalso mounted in" a cylinder 85-in the strikepIate, andib'oth this cylinder and the cylinder 81 are:pro-

vided 'with sidenotoh'es 86' andB'Tto-permit the ends of the -lever 77 'to follow th'e'push" butt-on andfplunger the cylinders:

Mounted in-and "extending through ;open- "ingsthe front faeeand-" the face-plate of' theiin their "movements" ":in"

cylindrticalginr Shape !flIlClKfPI'OVlClQCl; with a .shouldermor flange; 891at it's rearyend t-o-:con-;- tacti with Ethe iloclricaseaandlimit the outwardr; movement of thestopgmember llndtlf'jtllegilel'lrlflfl, sion 1: of: a: compression: spring '90 mounted withingazxca vity Wlthll'l! thiszmember and re-'1' actihgsatz its rear 'end fupoman: Lzshaped arrrnz 91 secunedto :the front: plate of the lock oaserv It .villabewobvious that under the tension: 0f175 the spring the istopgmember will. be held-z; incaupositionshown: in Fig.3 5,. where 5 it rise substantially =5 flush with the face-plate 521%" of th e .rlocklz. Pressure upon .the push button; 78; howeveryzwilh vicause the shank 82' ofiztheeso plunger? 90 to retract: thet stop memberzr. against; the :tensionnof: it's spring; Y as shhwnr: in: Fige'6,,-s01;that' a; personsatthe"outside:ofa the door. 'cangreadilytell :by pressurenpon the? pushirlbhttoneWhetherror notttheedo'or 85 hascbeenJockedn 7 As shhwn .iIl Fig. 3,; the front- 'porti'onzofw the slide .35 is 5 provided "Wli3l1'='=& irecess 931 ton reeeivetthe end ofithe Lyshapedn'armstll', so: that the edge fiat-of the. :slide may npassebeloww this arm and engage againstttheeshouldera 89 upon the stop member-Whenthe sli det35 ismovedifOrwardly to deaddock the latch boltlt Whenwthe parts a're in this positions. as shownirinoFiga 7, the 'stop member 88 will be held against retraction by the frontredge; of the eslideetand: the ,push: button: 7 will be effectively .blockedzagairist depressions Thus an indicationtwill be -given toanywoneirying the-push: buttona. that: the ndoor: has :been dead.-looked-;;. 7 e

The operationrot myulock may: be briefly: described as fo'llows: .The parts of thedo'c-k I normally stand. in: the position, shown in: Fig. 3, whereini'thetla'tchmay be freely retracted either byathe knobzil l-upon the inside of the door=acti11g uponvthe retracting shoe 25'; or byrrany otsthe k'eysfromthe outside, as all of the 'keys rotate themolli-baolc 68- which engagesw-the projection: 68 uponthe? lever 65 whichin turn engagesthe latch-retracting 1 lever If the guest; wishes to lock-the door from the'inside; he uses the thumbturn '95 whioh serves to move the dead-lock ing slide 35 forwardlyto theposition shown in e wherein the 'fin'ger85 is disposed e behind the'cross-h'ead upon-the stem of the lat-ch bolt. It will be noted also that with the-par-ts in this posit ion'the lever-"65 "has been moveddor-wardly until itis no longer engagedby either of the roll-backs 63,.andat the same time the indicator mechanism is set sothat'it is impossible to depress the push'i-button78; Ifit is'attemptedQto open the door by any except the emergen'eylrey the roll-back. 63 alone will be rotated; and Willjnotidistnrb the mechanism in anyway as it turns-freely behind-"the offset talons. 36r'jupon-'the-slide and aszthe lever .65 is 130M now withoutfithe range" of movement of either of the roll-backs. The emergency key, however, itused at this time, since it operates both of the roll-backs, will first cause the slide to be retracted by the rollback 62 to the position shown in Fig. 3 wherein a continued rotation of the lock will cause the roll-backs to engage the projection 68 upon the lever 65 and through the latch- No. 163,726 and filed January 26, 1927.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to the details shown but is capable of variation and modification within the spirit of the invention as defined by the scope of the appended claims. i

VVhatI claim.is: r V I l.- In a door lock, a case, alatch bolt therein, key actuated means to retract said bolt including a lever pivoted to the case, and means to dog said bolt in protracted position, said retracting means being moved to position to allow said key torotate freely.

when said dogging means is operative.

2. In a door lock, acase, a latch bolt therein, key actuated means to retract said bolt including a lever pivoted to the case,

a reciprocable slide to dog said bolt in pro-: V

tracted position, said slide beingmoved to position to allow said key to rotate freely.

when said dogging means is operative.

3. Ina door lock, a case, a latch bolt therein, dogging meanstorthe latch bolt, retracting means for the latch bolt, including a lever pivoted to the case, a key operated mechanism connected to said :retracting means to operate the same, and means forv breaking said connection to allow saidkey to rotate idly when said dogging mechan sm. 1s moved to operative position.

4c- In a door lock, a case, a, latch bolt therein, a reciprocating slide to dog said bolt-in protracted position, retracting means,

- for the bolt including alever pivoted to the case, key operated mechanism connected to said means to actuate the same, and means for breaking the connection between said key operated'mechanism and said retracting means to allow the key to rotate idly when said dogging slide ismoved to Operative 5. In a door lock, a case, a latch bolt,

therein, dogging means for said latch, bolt, retracting means for the bolt includ ng, a.

lever pivoted to the case, a key operated mechanism, and connections between said key operated mechanism and said retracting means, including apart movable with said dogging means, whereby said connection is broken to allow the key to rotate idly when the dogging means is operative.

6. In a door lock, a case, a latch bolt therein, dogging means for the latch bolt, retracting means for the bolt including a lever pivoted to the case, a key operated mechanism connected to .said retracting means to actuate the same,'and means .to move said dogging means to operative position and simultaneously break said connection; between said key operated mechanism and said retracting means to permit the said key to rotate idly.

7. In a door look, a case, a latch bolt therein, a reciprocating slide to dog the bolt in protracted position, retracting means for the bolt including a lever pivoted to the case, a key opera-ted mechanism, and connections between said key' opera-ted mechanism and said retracting means, including a member movable with said slide, whereby said connection is broken when the slide is moved to its dogging position.

8. In a door look, a case, a therein, a reciprocating slide to dog the bolt in protracted position, retracting means for the bolt including a lever pivoted to the case,

a key operated mechanism, and connections in protracted position, retracting meansfor the bolt including a lever pivoted to the case,

said retracting means, including a member latch bolt a key operated-mechanism, and connections between saidkey operated mechanism and connection is broken when the slide is moved to its dogging position.

10. In a door lock, a case. a latch bolt therein, retracting means for the bolt includ ing a leverpivoted to the case, a key operated mechanism, a reciprocable slide to dog the. bolt in protracted position, a member carriedby said slide normally engaging said retracting means, and adapted to be engaged in turn by said key operated mechanism, said means to be movable out of the path of said keyoperated mechanism when said slide is moved to dogging position to permit the key torotate idly. V e

. 11. A look comprising a latch bolt, :1 deadrlocking .slide forv said latch bolt, key

operated means for retracting said bolt, in-

cluding a member mounted on said slide. a keyactuated tumbler-mounted on said slide, a second-tumbler controlling the positionof the slide and connected with said first tumbler, a thumb turn for actuating the second tumbler, said member being moved to in operative position when said slide is actuated by either thumb turn or key.

12. In a door look, a latch bolt, a deadloc-king slide for said latch bolt, retracting means for the latch bolt, including a member mounted on said slide, key operated mechanism to actuate said member, a pair of tumblers controlling the position of said slide, one being adapted to be engaged by a key and the other by a thumb turn, means interconnecting said tumblers, said member being moved out of position to be engaged by said key operated mechanism when said slide is moved to dead-locking position by either thumb turn or key.

13. In a door look, a case, a latch bolt therein, retracting means for the bolt including a lever pivoted to the case, deadlocking mechanism within the case, a key operated mechanism, and connections between said key operated mechanism and said lever including a part movable with said dead-locking means whereby said connection is broken to allow the key to rotate idly when the dead-locking means is moved to operative position.

14. In a door look, a case, a latch bolt therein, a dead-locking slide within said case, retracting means for the latch bolt, including a lever pivoted to the case, key operated mechanism for operating the latch bolt and the dead-locking slide, and connections between said key operated mechanism and said lever including a part movable with the slide whereby said connection is broken to allow the key to rotate idly, when the slide is in dead-locking position.

In witness whereof, I have hereunto set my hand this 17th day of April, 1924.

JOHN H. SHAW.

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