US1682988A - Lock - Google Patents

Description

Sept. 4, 1928. 1,682,988

J. H. SHAW LOCK Original Filed April 1924 2 Sheets-Sheet 1 Sept. 4, 1928. I 1,682,988

J. H. SHAW LOCK Original Filed April 25, 1924 2 Sheets-Shet 2 \A k \w x Patented Sept. 4, 1928.

UNITED STATES 1,682,988 PATENT orifice.

JOHN H. SHAVI', OF NEW HAVEN, CONNECTICUT, ASSIG'NOR TO SARGENT & COMPANY,

\ OF NEW HAVEN, CONNECTICUT. I

LOOK.

Grig'inal application filed April 25, 1924,

This application is a division of my pending application, Serial No. 708,918, filed April 25, 1922, having issued as Patent 1.645.298, dated Oct. 11, 1927, and the invention described herein relates to looks which are especially adapted for use on hotel corridor doors, having means to indicate to a chan'ibermaid, or other person on the outside of the door, whether or not. the room has been locked against unauthorized intrusion, and it applies more especially to a lock of this character having an indicator which can be read by feeling or tough'so that it is useful at night as well as in the daytime.

While in some of its aspects my invention relates more particularly to an indicator for a lock provided with a dead locking device for the latch bolt, it is not necessarily restricted to this use, but may also be used in connection with a lock provided with a. dead bolt.

Que object of my invention, therefore, is to provide indicating means by which the position of the dead locking device of the lock may be. denoted.

A further object of my invention is to provide a lock of this character with an indicator device designed to be mounted upon the door frame or jamb.

- A further object of the invention is to provide a lock having a latch bolt and dead locking means for this bolt with an indicator mounted upon the door amb, the indicator comprising a button normally depressible when the dead-locking means is in an inoperative position but held against depression when the dead-locking means is in position to dead-lock the latch bolt.

A still further object of the invent-ion is the provision of an indicator member upon the door jamb and means carried by the face-plate of the lockcase upon the door to cooperatewith said indicatorto give an indication of the position of the dead-lockin mechanism of the lock.

To these and other ends the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings Fig. 1 is a fragmentary front elevational view of a door and door frame upon which is mounted an indicator lock embodying my improvements Serial No. 708,918. Divided and this application filed January 26, Serial No. 163,726.

' Fig. 2 is an edge View of a door having mounted thereon a lock embodying my in vention;

Fig. Elis a side view of the lock case with the cover plate removed to show the lock.

provements applied to a lock having the usual mortise case 20 provided with a front plate 21, which may be covered by an ornamental face-plate 21. of the lock case is mounted a latch bolt 23.

v lVhile the latch bolt mechanism per se forms no part of the present invention, it may be stated that this bolt is retractable from the inside by the usual knob spindle acting on a hub 24 to draw backv a retracting shoe or yoke 25, and in the particular case illustrated, the outside knob which is connected by its spindle to a hub member 26 is permanently dogged against movement by a portion26 on the hub member extending between the lugs 27 on the case. The knob shoe 25 has a shoulder 25 disposed in front of the crosshead 28 on the rear end of the latch bolt stem 29, which stem is surrounded by the usual spring 30 reacting against the guide lugs 30 of the case to normally urge'the bolt 23 to v protracted position.

In the upper part ofthe case a cylinder lock 31 is screwed in at the outer side and this lock through keys to be hereinafter described is adapted to actuate a latch retracting member 32 pivoted ,in the upper part of the case at 33 and having its lower extremity 34; disposed in front of the cross-head 28.

In the form of my invention shown, the

usual dead-bolt has been omitted, and in.

stead there is, provided a flat slide memberor blind bolt 35 provided with talons 36 adjacent the lock 31 and a cut away portion 37 between these talons at the forward end of the slide. As shown more particularly in F 6, the talons are offset laterally with reference to the body portion of the slide so In the lower part that, as will be described :hereinaiter, one of the-roll-baeks of-the lock 31*may operate above the body ortion. of 'theslide-behi-nd these talons, whi e the other roll-back is disposed in the plane of the talons. iXfenceor stump 38 formed rigidly with thelock case" is received in a cut away portion of the slide between these talons and the forward edge. 'Ehis fence guides the'slide in its i-reeiprocat 41 is formed to cooperate With a wingi'i2 on the thumb-turn hub. j

The slide isv provided {with a'itulnbler 43 pivoted on apost 44: at the ionivard part of theislide'soi as tobe carried by thelatter, and

this tumbler; isxl'orm ed with'a projection45 extending between thetalons 36 in a position to co-operate with the roll-backs of the cylinder lock 31. This tumbler 43is provided intermediate its ends with a lug-Z46 to co-operate iwith :the post :38 in locking the slide either initslretracted or advancedposition. Below :the' tumbler 43 and pivoted to the lock-tease ate? is a-second-tu'mbler 48 whichcdoperates with. the thumb-turn "hub whe nthe, lattenisactuatedto move the deadlocking mechanism. This tumbler is provided with 'a spring 49 "reacting against a post 150 rigidly formed with the lock case. Theuna'in partof the tumbler 48 ovenlies the bodyiof the slidei, and atuits free end the on the {WEingi42 aSEt0- hQld it, in eo operation withthe dgepfithezgatevtl;in such-amanjner i that: theislide will lbe locked in: either its 7 retracted or protracted posi'tion a'nd-can not tumbler is: provided zwithenotches filwand 52 which: converge toward the; upper-edge of thetum-bler; The spring :49 exerts :an upward;

thrustalpqn the itumbler so aswto keep it h firmly. seatedmgainst ithe lthunib turntihub With the :wingkizl engaged :in one: or the other of the notches 51 and 'I he t1'1nobler in this amanner exertssuch= an upward thrust be moved out. of such position,rexcept by the actuation of ithe ethumbaturmhub or the lock- 1 31 hyimeans of the proper key.

l'ThextWo tumblers .areojoinedfbyl means of a ICO IIIIG CtOI tS?) which may talrethe= formof a small 1p1ate, .as shown-in the drawings.-

This .plate'i'is provided with upper andlower pins 5dt' and 55projeetin'g' rearwardl'ythere- V will "be apparent that a the slot-ted connection from; the pin 54 being received kin a slot 56 in: the inpper tun'ibler 43; and the lower pin 55 'being ,zsecured in the lower tumbler. It

. between theiconnectoisplate 53 and theme bler L43 is necessary 1 due Y to the ffact= that relative movement fof. the tumblers must he permitted as :one as ilnountediup'on and moves ingor retracting the slide235i V r previously 7 described, may' b'e actuated from the cylinder with the slide, avhile the other is pivotally carried by a post rigid with thelock case.

Inthe-construction shown; the slide35 may be shifted. :together with the tumbler 43 without disturbing thec'onnection with the upper movable tumbler with the lower tumbler mounted upon the fixed post. The upper part of the connector-plate is preferably notched oiwbifurcated, as; shown at 57, to

receivegbetween its forks the post 38. The post thus guides the plate properly in its vertical movements when the-tumblers areto shifting the deaddepressed preparatory locking slide 35. a v.

The slide :35 is provided at its lowertside wi'thrfa 1finger 35 dis osed rearwardly'of the crossehead 28 upon tie endiof thelatchbolt stem 29; As'shown :F ig. AWhentheslide 35 ismoved fonwa-rdlyito its dead-locking or operative :positionithis' finger is moved to a: position l-to'engage ibeliindethis cross-head to prevent retraction of the latch bolt.

- The eylinderilock '31,preferablyof the kind shown in the: patent to G. Voight, No. *51,243,016 granted-October 116, '1917. is provided withgthe 'usualtcase 58 andlkey plug 59 'the latter being controlled by the usual-pin tumblersl (not shown) coo erating witlr the key plug in the manner 'escribed in the patent referred to, and a pair of rollbacks 62 a and 63,- the iformerl bein rotated alone by all of the keys to the loc except the emergencyike'y which'rotates bothrollbacks. These roll-backs are spaced-apart by pai'allel planes by means of a washer 6,4, and it will be apparent that while the operating projection 45 on -the Iupper tumbler 43h, disposed in the -plane of theroll-back tion, and thus -not=being capable of--advanc- The ilatehraeti'ng lever "32;

lock {by means of alever 65 pivoted j OIli the slide 35 5 1567 and ear-ried by the slide in its-movement toand fro within the lock case. The free end 66 of thisfllever hears uponthe vupper edge of the leverifi2' when the slide is in retracted sition; sothat by-depressing the ileverf65 =t e lever 32 may be actuated -to t retraet thelatch. For. thispu-rpose the'lever 65 i is provided adjacent" the cylinder lock with a comparatively deep'operatingjpro jection '68 close *topand having portions in substantial alignment with b oth roll backs- F7 62 and '63, so that this lever may be operated-by either of the': roll-baeks. 'It-w fll-be observed, "however, that when the slide is i in advanced" position, as shown in Fig; 4,"

the lever 65 is not aonly out of contact with the latch-retracting lever-32, but is is-also' a and idly back of, the talons 36 and clearing the end of the lever 68 so that no eifect whatever will be produced on the lock mechanism. The emergency key, however, causes the rotation of both rollbacks and if used is at this time will serve through the rollback 63, first to movethe slide rearwardly to the position shown in Fig.3, inwhich the part .68 is again in position, to be engaged. by either roll-backs, and a continued rotation of the lock by the emergency key, or

the rotation of the roll-back 62 by any of the keys, will serve to retract the. latch through the levers 68 and 32.

In order to dog the knob when the latch .U bolt is dead-locked,I have shown a lever 71 pivoted upon the post 50 andengaged at its upper end with the slide 35, so that as the slide is moved forwardly the lower eno of this lever will be moved downwardly and as rearwardly behind a projection on the shoe to prevent movement of the latter.

In order to indicate to a person without the room whether or not the door'has been locked from the inside, or has been locked so with a proper key (in this case. the emergency key) from the outside, I have provided upon the door jamb an inoicating mechanism similar to that shown in my Patent, No. 1,604,9 l7, dated October 26, 1926,

:3 of which this application is' a continuation in part. Pivoted at 75 to the rear face of the strike-plate 76 is a lever 77, one end of which co-operates with a push button 78 mounted in an extension 79 in the strikeplate, the other end of this lever co-operating with the head 80 of a spring-pressed indicator controller plunger mounted in a cylinder 81 in the strike-plate and provided with a shank 82 which is adapted to be pro-v jected through an opening 83 in the face of the plate. A coil spring 84; is mounted with in the cylinder 81 and reacts against the rear of the face of the strike-plate and against the head 80 of the plunger to normally hold the plunger in its retracted position within the strike-plate, and by means of the lever 77 to normally hold the push button 7 8 in its outer position as shown in Fig. 5. The push button is also mounted in a cylinder 85 in the strike-plate, and both this cylinder and the cylinder 81 are provided with side notches 86 and 87to permit the ends of the lever 77 to follow the push button and plunger in their movements in the cylinders.

Mounted in and extending through openings in the front face and the faceplate of the lock case is a stop member 88'generally cylindrical in shape, and provided with a shoulder or flange 89 at its rear end to contact with the lock caseand limit the outward movement of the stop member under the tension of a compression spring 90 mounted within a cavity within this member and reacting at its rear end upon an L where it is substantially flush with "the face-plate 21 of the lock. Pressure upon the push button 78, however, will cause the shank 82 of the plunger 80 to retract the stop member against the tension of its spring, so that a person at the outside of the door can readily tell by pressure upon the push button whether or] not the door has been locked.

As shown in Fig. 3, the front portion of the slide 35 is provided with a recess 93 to receive the end of the l. shaped arm 91, so that the edge 9st of the slide may pass below this arm and engage against the shoulder 89 upon the stop member when the slide 35 is moved forwardly to dead-lock the latch bolt. When the parts are inthis position, as shown in Fig.5, the stop member 88 will be held against retraction by the front edge of the slide, and the push button will be effectively blocked against depression. Thus an indication will be given to any one trying the push button that the door has been dead locked. r I The operation of my lock may be briefly described as follows: The parts of the lock normally stand in the position shown in Fig. 3, wherein the latch may be freely retracted either by the knob 94- upon the inside of the door acting upon the retracting shoe 25, or by any of the keys from the outside, as all of the keys rotate the roll-back 63 which engages the projection 68 upon the lever 65 which in turn engages the latch-retracting lever 32. If the guest wishes to lock the door from the inside, he uses the thumb-turn 95 which serves to move the dead-locking slide 35 forwardly to the position shown in Fig. 4:, wherein the finger 35 is disposed bekey the roll-back 63 alone will be rotated,

and will not disturb the mechanism in any way as it turns freely behind the oi'fset talons 36 upon the slide and as the lever 65 is now without the range of movement of either of the roll-backs. The emergency key, however, if used at this time, since it operates both of the rollbacks, will first cause the slide to be retracted' by rollback 62%0 the positionehown in 3, wher'ein a eonbe understood tha-tit is not i to be limited to the detailsshownlbutis capable of variation 11nd modification within *thespirit of the invention'as defined by the scope ofthe-gappended claims; i

What I c1&i1nis:-'. v 1.111 combination, a door lock provided with abolt and a face-plate having an opening therein, a strike plate cooperatingwvith the lock, on indicatoron the strike-plate provided with controlling member protractable from-this plate into theg fa ce-plafie opening, and a memberwniovz'ibly mounted upon and entirely supported "by the front face of the lock case and adapted ito contact with said protractable :Inember to prevent movement thereof. i

2. In oombinafiion'with-a lock-mounted on a door and indicating means upon the door jamb,=a stop -member projecting' through-an opening i'n the front face of-the lockbase i-gssegoes to cooperet e w ieh sai'd inflicating nieolmniem, a spring mountedmpenj-theffronfl feee of the look norm lly i rging said stop member 't'o protracted pos'ition, end means to filinfit movement of 'the slsopimeniber' whenthe door 'is lookd i v '3. A loek compri 'ng a bGIQ c ntroHiHg mea'ns -ior-said bolt, and means for indiez'rting the I position olf said controlling-means comprising i 2 a stop fmerhber r mountedi in an opening in jhe faceojf' fihe lock,cese,a'supporting member secnrd j'to {the case, and a meintai'n'ing said stop meriiber-inposition. AVA lock compriing ra fboltfeontrolli-q means' for saidbolt;end megns for-indicafiin the' position of: said 'col itrolling means 'conirising a stop membewmoumedm an open- 1resilitznfilymairitaifiingsaidstop memberirn I 7 position. I V V i A look comprisin ween, controlling means for said -bolt,-a' d means for indicatii'ngl the posifiion of saidflcoritrollingflmeans comprising a stop member mounted in opening in itheiface'qf: theloek case, Lenishaped spring supporting ;arm "secured ;to said face p1:ite,ani1 a prin usupportediby said member and res'i'lientlymgiinwiningseid stopmember imposition, V

In wit s wh eof, ber t-h eunt se i

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