US1769314A - Door lock - Google Patents

Description

J. A. RYMER July 1, 1930.

DOOR LOCK Filed March 8, 1929 INVENTOR. JaH/v A. Hyman ATTORNEYS.

Patented July 1, 1930 v v i UNITED S ATE-s TO RY -LOGK COMPANY, LTD, OF RENO,

' noon Application filed. March 8,

The invention relates in the present embodiment'to locks of the latch bolt type having an axially slidablespindle for actuating the latch bolt, a knob'on one side ofthe door fixedly engaging the spindle and a knob on the other side of the door releasably 'en-' gaging said spindle. It will be noted that'in such type of lock, in the normal position thereof both knobs engage the spindle wherem by it may be freely operable from either side of the door but upon a proper axial displacement of the spindle, the outer knob will be released from operative engagement with said spindle so that the latch bolt mayth'en only be actuated from the outer side of the door, by key cont-rolled means associated with the outer knob.

One of the objects of the present invention is'to provide a lockof the character described which is so designed that locks embodying thesame structure and tumbler barrels may be used on a plurality of doors without at the same time entailing the disadvantage of having every keyywhich may rotate all tumbler barrels likewise operate every lock. I

Another feature, or object, of the invention is to provide a lockof the class described in which, upon the axial displacement of the spindle to release the outer knob from operative engagement therewith, independent means will automatically function to lock the spindle in displaced position whereby no amount of j arring will operate to release the spindle.

A further object of the invention is to provide a particularly effective means of locking the outer knob against movement when the spindle has been operatively disengaged therefrom. I

A still further object of the invention is to provide a lock of the class described having a spindle of readily detachable portions whereby portions of varying length maybe substituted to suit doors of differingthicknesses without necessitating the dismantling of the lock. 1 7

Yet another object of the invention is to" provide, in a lock of the class described, a" 0 particularly efficient means for insuring the.-

NEVADA, A oonronn'r o von NEVADA Loon i 1929. Serial in; 245,508.

return of theouter-operating means to nor JOHN A. RYMER, or BERKELEY, CALIFORNIA, nests-non, BY MESNE nssiemvxnn'rs,

mal position after the latter has been operated and the latch bolt has been retracted.

, The invention possesses other objects'and features of advantage, some of which,fwith the foregoing, will be set. forth in the following description of the preferred form ofthe invention which is illustrated in the drawings accompanying and forming part of the specification." It is to be understoodyhowever, that variations in the showing'niade by thesaid drawings and description may be adopted within the scope of the invention .as set forth in the claims.

Referring to said drawings, Figure 1 is a fragmentary plan section taken through the lock and a door on which the lock is mounted, thelatch bolt casin showing in plan and not in section. 0'

Figure 2 is a vertical-section of the "lock F igure 7 is' a viewsimilar to F igure 3 but showing the parts in different operative relation.

Figure 8is a plan view ofparts as shown v in Figure 1 but with the spindle shown released from the outer 'kno -F1gure-9 IS a sectional view in-the same planeas Fig. 1, showin the key operated member modified'where y a different ke will berequired to operate same.

The present embodiment of my invention isincorporated in a lock 8 disposed in 'a suitable cavity 9 provided in the free edgeportion llpo f the door 12, and which is arranged to beoperated from the inner and outer sides of the door bymeans of knobs 13 an'dl.

The lock is provided with a bolt 16 which is arranged to normally extend from the outer end of a bolt casing 17 mounted in the door edge 11,

Slidably mounted in the casing 17 is a bolt yoke or latch plate member 18 for actuating the bolt 16, such member being here shown hollow and of generally rectangular outline and being urged to assume and maintain an outer position by reason of a spring 19 operatively engaged behind it. J ournalled in the casing 17 to extend horizontally there through is a latch actuator 21 having extent ing therefrom intermediate the casing walls 'an arm 22 arranged for engagement with the latch plate 18 in such manner that a rotation of the actuator from the normal position shown in Figure 2 will effect a retractive displacement of the latch plate. Preferably, and as shown, the actuator arm 22is arranged for engagement with the latch plate both at upper and lower sides thereof whereby a rotation of the actuator in either possible direction may retract thelatch plate.

Extending axially through the actuator is an'opening 23 arranged for the slidable re ception of the spindle 24, the opening and spindle being of like polygonal section whereby rotation of the actuator may be effected by rotating the spindle. Rotation of the spindle is arranged to be effected by means of the inner and outer knobs 13 and 14, the former of which is fixedly secured to the spindle by means of a screw 26 and is slidably and rotatably disposed in the escutcheon plate 27 positioned against the inner side of the door. V

The spindle extends through a cavity 28 of the door, which is combined with the cavity 9. Covering the cavity 28 and positioned against the inner and out-er surfaces of the door are side plates 29 and 31 which secure the lock in position. The plates are connected together by means of screws '32 extending from the plate 29 and engaging in segmental-shaped arms 33 fixed to the plate 31. Asclearly shown in Figure 1, the plates are concealed within the inner escutcheon 27 and an outer escutcheon 34, the latter be ing interposed between the outer surface of the door and inner edge of the outer knob.

Preferably, and as will be more fully hereinafter explained, the spindle is, for the pur pose of-easily adapting the lock for doors of difi'erentthicknesses, formed of two sections 36 and 37 which'are connected together by means of cooperating hook and eye members 38 and 39 respectively formed on the sections, said members having interengaging sides to prevent relative rotation of the sections in attached position. Preferably detachably secured to the outer knob such as by a bayonet connection and locked in such position by a member 41, is a knob sleeve42 which as here shown extends through the plate 31. Opere ative connection between the spindle and sleeve to permit rotation of the former by the outer knob is effected by means of a lug 43 extending transversely from the spindle section 37 and arranged in protracted or forward'position of thespindle to engage in a notch 44 formed in the rear end of the sleeve. It will be evidentthat with the lug seated in the notch, as is the case in Figure 5, the outer knob may be used to effect a retraction of the latch bolt, whereas when the spindle isv moved spring 46 which is interposed between a suit-,

able stop at the forward end of the spindle section 37 and a bearing wall 47 which is held against axial displacement in the sleeve but is freely revoluble therein. The spindle ex tends through an opening 48 of the wall,

such opening being polygonal to conform to the cross-sectional shape of the section 39 wherebythe latter, while capable of rela-' tive longitudinal movement through the wall, is fixed for rotative movement with it.

Revolubly mounted within the outer knob casing and fixed to the bearing member 47 for rotation therewith is what may be conveniently termed a key-tip receiving member 49 which is operatively aligned with and adjoins a tumbler barrel 51 held in theknob 14. The member 49 is=provided in the forward end thereof with a kerf 52 which communicates with the key passage 53 of the tumbler barrel'and is arranged to be engaged by the tip of a key adapted for insertion through said passage. Since the receiving member 49 is not displaced by the longitudinal movement of the spindle, it will be evident that in the retracted position of the spindle, rotation thereof from the outer side of the door to elfect a retraction of the latch bolt may be readily effected by turning the proper key in the tumbler with the key tip engaging in the kerf. In. Figure 9 I have shown the receiving member 49' provided with a slight change enough to operate a lock otherwise the same but having in place of member 49., the member 49' which is provided with the kerf 54.. On the other hand a key which is long enough for engagement with the kerf of a lock equipped with member 497 may also be used with locks having the receiving members 49,

tractionw-hen the spindle is moved from pro-;

it being noted that ample room is allowed within. member l9 forthc accommodation of i such as indicated in Figure and then,r-o-- the-longerkeygi A systeinloi locks somd-locks, inaythus-be" provided for by a practical duplication of the loclrandtumbler: mechanisin 'ior-eachdoor, and as a oonsequence l an'economygin cost and 'si'i'nplicity of installation is permitted; not possible with s loclts'ofthis type as heretofore constructed.

Nhilel have show'iiiand described system for but two dili eren't lteys, it is :o'bviousthat systemsinvolving pra cti'c'ally any nuniber of diil'erent keys may be arranged for'by mere-1y providing for different relations between the tumbler barrel and the'key tip receiving el'e'-' ment and using keys to correspond; I l v Means are 'providedifor causing the spindle to be automatically "locked against protracted to retracted position. Fixed "to the spindle for longitudinal movement therewith, but allowing the rotation of the spindle relative thereto is a slide'56 having legs which are confined for movementingrooves 58er tending longitudinally of and l'ornied 1n the outer 'face or the knob sleeve Positioned between the slide and side plate 31 and secured to the knob sleeve is disc 59 uponwhich is mounted a pawl '61 ,--urged inwai'dly"-by-I means of a spring 62. When the'spindle is in protractedposition the'pawl' lies coplanar with'and bears against the' edgeof the slide, as clearly shown in Figure 81' However, as the'spin'dle is retracted the slide indxlug moved past the pawl whereby the-latter will automatically slip between the lug 4C3 and edae'of the sleeve, itzbeing noted that, as-

here shown, the lug'i s arranged to ng ge the pawl during the retractive' movement of the spindle to prevent inwardmovement'of the pawl before the lug has moved past same. l/Vith the pawl thus-locking the spindle against forward movement, it will be clear that even when the door or looks are sub:

jeeted to violent jolts, the spindle will not be released to allow theretraction of the bolt. by means of the outer knob, On the other hand the release oi: the spindle may be readily effected from the. inside of the door-by rotating the inner; knob wherebythe lug rwill be moved from engagement :Vllll'l the pawl,

i tating thelrnob to bring-the lug toengage the eamJedgeGQ-of the pawlsothatthe pawl-may be moved -outwardly suiiicient to allow the return ofthe'slide ineoplanar relation theref with;

Particularly eflective means are provided forholding the outer linob loclredagainst ,niovement when the spindle is in retracted position. Formed on the slide 56 is a pro motion/d3 which is arranged, when the pawl is disposed in'iront of the lug ea, to seatin ,m-e e I in which: only certain lteys will operate all the locks and others only a iiotch ti l-provided in a forward extension V 66 of the'latch yoke-18. Withthis arr-ange meiih'whilej the outer knob is thus prevented from being-rotated when the spindle is retraoted, the inner knob may 'still'be rotated to retract the boltif desired, since upon the initial rotation of the inner knob' the latol yoke will be 'nioved towithdr'aw the extension 66; from engagementwith the proj eetioii" It will also be evident that upon return move ment of the yoke the extension 66 will moveba'okto reposition the projection in thenotchQ -MQans are also provide'dffor"urging 'the outer knob to assume and' 'be retained in such" position that whennot inuse, the slide 56 whio'h, it will be remembered, is 'slidably secured to the sleeve of the kn0b, willflbefin position to properly'engage tlie- -latchyokev i when the spindle is moved froin protractedto retracted positions Fixed to"thesleeve a plate 67 betwer-in which and the plate 81 is inter-posed atorsion spring'GSQ Both encls of the spring in" the posit-ion of rest of the knob l't are engaged"witlrprojections-fil) and 71' respectivelyfixed to -the plates ii-land "67. However, when the 'knob' is turned in j'on'e di-* rection orfanother, 'one-lor; the other of the sprin'g ends willbecaused tomov'e with the pro ection7 -1 When the knobis released-the I I spring end which has been moved with iiieinber' 71 forces the latterback until said end" abuts the proj ection on the'side plate at which time the knob position. 7' m Owing to the fact'that the section seer the spindle is formed separate of the. section 37, it will-be seen that thelock be fapplied-to doors of different thickne'sses'with out necessitating the dismantling of the more involved operating mechanism of the lock, that is, the portion associated wit-h the spindle "section 37. By forming the sections esp mate, as particularly shown-here," the only variation in the lock necessary to accommodate different door thicknesses is the variationxin the length of the spindle section 36' be disposed normal and the change in the position of the slide to retain the 'properrelationship with the latch yoke 18. It may be mentioned, inconnection 'with the' latter matter, that when the lock is used onldoors ofgreaterproportions than that disclosed herein, so that time spacebetween the latch casing and side plate 31 is provided, the pawl may' simply operate entirely with the lug rather than with boththe lugand slide. I I claim:

' 1 .'In a lock, latchplate, a rotary spindle for'actuating said plate arranged to be moved longitudinally-from protracted to retracted position, means operable from-the outer side of the 'doorfor rotating the spindle and arranged to be operatively connected with or disconnected from the spindle in the respec t'ive pos1t1ons aforesaid, andmeans lndependent -o f the said plate automatically operable uponthe retractive movement of the spindle for locking the spindle against-protraction, 2. In ail k, a latch plate, a rotary spindle for actuating said plate arrangedtobe moved longitudinally from protractedto retracted position, means operablefrom the'outer side of the door for rotatingthe spindle and armeans against movement in the retracted p0 sion of the spindle. V

3. In a look, a latch plate, arotary spindle arranged to befmovecl longitudinally from protracted to retracted position, means operable fromthe outer side of the door for rotating the spindle arranged to be operatively connected with or disconnected from the spinable automatically upon the retractivemove dle in the respective positions aforesaid, an

actuator on said spindle for retracting the latch plate, aspringpressed member operment of the spindle'to engage the same and hold it against protractive movement and means on the spindle engageable with said memberarrangedupon the rotation thereof to release said member, and means associated with the latch plate arranged t-ohold said first means against movement in the retracted position of the spindle. j 1 i 4:. In a-lock, a latch. plate,a'rotary spindle arranged to be moved longitudinally from protracted to retracted position, means operable from the outer side of the door for rotating the spindle, means on the spindle arranged;

in the protracted position aforesaid to engage'said first means and lock the same for rotative 'movementwith the spindle, and a springpressed member arranged upon the retractive movement'of the spindle to operatively engage said last means topre-vent the protraction of the spindle. a

5. A lock in accordance with claim l characterized by the second mentioned means ar ranged upon the rotation of the spindle in retracted position to move said springpressed member to release the spindle.

I 6. Ina lock of the character described, a latch plate, a rotary spindle arranged to be moved longitudinally from protracted to retracted position, a knob on the inner side of the door secured to the spindle, a knob on the outer side of the doorhaving a sleeve thereon, means on the spindle arranged in the protracted position to engage-the sleeve whereby rotation of the spindle may be effected by the outer knob, means on the latch plate "arranged to hold said sleeve against rotation in the retracted position of the spindle, and key controlled means within said spindle arranged to be moved longitudinally from protractedto retractedposition and comprising detachably connected sections, one of which extends through said plate, aiknob at the v inner side of the door secured to said section, aknob atthe outer side of the door having a sleeve enclosing the other spindle section, and co-operatingmeans on; said sleeve and one of said sections arranged to :lock the sleeve for rotation with the spindle when protracted and to release the sleevefrom rotation with the spindle when retract-ed. V

8. In adoor lock, alatch plate, a rotary spindle arranged to be moved longitudinally from protracted to retracted position and comprising sections detachably connected together against relative rotation, one of said sections operatively engaged with 'said latch plate andeXtending through the door, an inner knob connected to said section'for rotating and moving same longitudinally, an outer knobhaving a sleeve, means'on one of said sections arranged in the protracted position of the spindle to lock the sleeve for rotation therewith, and means secured tothe sleeve and firstsection respectively against rotation and longitudinal displacement and arranged in the retracted position of the spindle to operatively engage said latch to lock said sleeve against rotation.

9. In a door lock, a latch plate, a rotary spindle arranged tobe movedlongitudinally from protracted to retracted position, and comprising detachable sections, one of which extends through the door and operatively en- .gageswith said latch plate, a knob on the outer'side of the door having a sleeve enclosing portions of each of said sections, means on one of said sections arranged for engagement with the sleeve forloc'king the latter for rotation with the spindle when protracted, means connected with the sleeve and spindle to engage the latch plateto. prevent the rotation of the former while the spindle isretracted, a tumbler barrel carried by the knob, and a key tip receiving memberwithin said sleeve operatively aligned with said barrel and securedfor rotation to the spindle. V

10. In a door lock, a latch plate, a rotary spindle for operating such plate: arranged to be moved longitudinally from protracted to retracted position,'an1inner knob fixed to the therewith and rotatable independently of said barrel. 7

11. In a door lock of the character described, a fixed member, a rotatable knob, and means for urging and retaining said knob in fixed relation to said member comprising a torsion spring having the ends thereof normally engagedwith said plate and'member,

one of said ends-being held for or against movement with the knob according to whether the knob is rotated in one direction v or another, while the other of said ends is arranged to be held against or for rotation with the knob upon rotation of the knob as aforesaid.

12. In a door lock of the character described, a latch plate, a rotary spindle for actuating said plate, a knob arranged to be operatively connected to or disconnected from said spindle in different positions of the latter, a tumbler barrel carried with said knob having a key passage, a rotatable key tip receiving member secured for rotationv with said spindle and having the key engaging portion thereof arranged for operative registration with said passage, said tumbler barrel being rotatable with or without said member. I

13. In locks of the character described, a latch plate for each lock, rotary spindles for actuating same, like tumbler barrels mounted for rotation in the independent locks and having key passages, key tip receiving members arranged for cooperation with the respective barrels and operatively fixed to the spindles, the portions of said members arranged for engagement by the key tips being in the clifferent locks in different relation to the barrels whereby a key operative to rotate each of said barrels may operate but one of said members. In testimony whereof, I have hereunto set my hand at Oakland, California, this 27th day of February, 1929. I

- JOHN A. RYMER.

Images