US1618344A - Door latch and lock mechanism - Google Patents

Description

` 1 Y 1 61s 344 Feb. 22, v927. A J. KOPP DOOR LATCH AND Locx MEGHANISM Filed Aug. 24. 1925 0 3 f Q o C) s@ f c //7 72 7 ,Z/

, www m Patented Feb. 22, 1927.

UNITED STATES ANTON J. VKOPP, OF SAN FRANCISCO, CALIFORNA.

DOOR LATCH AND LOCK MECHANISBI.

Apiication'niea August 24. 1925. serial No. 51,909.

This invention relates to an improved lock for doors and other closures, the main purpose being to` provide a. simple, inexpensive vand easily operable lock which may be read- -ily and'cheaply installed and operated with greater ease and facility than the ordinary door lock. f

An object of the invention is to provide a door lock which includes a latch mechanism having operating levers instead of the ordinary knobs, one of which levers when grasped to pull the door open, will operate the latch to withdraw the latch bolt, and the other of which levers when Vgrasped to open the door with a pushing movement, will likewise operate the latch to withdraw the bolt, thus making for an easy and quick operation of the latch to open the door. 1 l

Another object of the invention is to provide a lock and latch mechanism ofthe vcharacter described which is of compact construction'and arrangement and ornamental as to appearance.`

A further object of the'invention is to provide'a novel operating mechanism for withdrawing the bolt through theoperation of levers in place of d-oor .knobs and spindles, which mechanism is ofsimple, durable and reliable construction and is notsubject to getting out of order or becoming deranged.

With the above mentioned and other objects in view, the' invention consists in the novel construction and oombination'of parts hereinafter described, illustrated in the accompanying drawing, *andV set Vforth in' the claims hereto appended, it being understood that various changes in the Jform, proper-- tion, size and minor details of construction within the scope of the Vclaims may be resorted to without departing from the spirit or sacrificing any of the advantages ofthe invention.

Referring to the drawing:

Fig. l represents a. verticalsectional view ofgthe'lock mechanism of this invention shown as when applied to a door.

Fig. 2 representsk a horizontal sectional view of the lock mechanism. l

Fig. 3 represents a longitudinal sectional view of the mechanism taken at right angles to the view in Fig. 2. Y

Fig. 4 represents a cross sectional view taken on the line 3 3 of Fig. 3.

Fig, 5 re'presentsfanend elevation of the key actuated lock whichl is associated with the lock mechanism ot this invention, showing the bolt arrangement of said lock.

Fig.. 6 represents a fragmentary sectional View of a modified form of lock. Y

The embodiment ot the invent-ion shown in the `accompanying drawing is applied to a door shown at A, in which is formed a socket B, opening at theedge of the door for reception of the lock barrel or casing l. The door is also provided with a transverse opening" C, opening on both sides of the door to provide for the incorporation with the lock mechanism ofV an operating means. The opening C is provided with an enlargement D adapted to contain another partof the lock mechanism, which enlargement opens on the outer side of the d-oor. i' i The barrel or casing lof the lock mechanism is provided with an attaching'flange 2 atits outer end, which is lcountersunk in the f edge of the door and held with the usual fastenings. Slida-bly mounted within the barrel is a bolt 3 ot' the usual construction, having a springe surrounding it and arranged to normally hold the bolt projected outwardly yfrom the door. This' bolt`is slidably supportedin a circular disk 5 disposed between the ends of the casing. The disk carriesparallel integral arms 6 which exten'dtowards the inner end of the casing and are provided with screw, threaded openings 7 adapted to receive screws Sinserted through the barrel, in order to hold the disk 5 in position. The inner end of the'bolt 3 is screwed into Vone en d of a rectangular frame 9 which has a working fitin the casing orbarrel 1 and is provided with a circular integral head1() adapted to have a working 't and to slide within the barrel 1. The arms 6 are provided at 4their outer ends with lateral extensions 11 which lie in superposed parallel relation to the inner end of the longitudinal frame 9. Pivotally mounted on theextensionsll are d-ogs l2, certain ends of which are engaged with the inner face of the head 10, whereas the other ends are disposed to be engaged by operating members which will be later more fully described. These dogs rest upon the frame, being engaged with said frame and the lateral extensions. f Their arrangement is such that when theyV are rocked, the head 10 is engaged and pushed rearward or inward causing the frame to be moved correspondingly and the bolt 3 to be withdrawn or, in other words, drawn into the barrel so as to unlock or unlateh the door as the case may he. The ahove described holt operating means is simple as to eonstruetion, compact, durable and reliable in its operation.

In the present. instance the means for operating' this mechanism comprises operating' levers 18 and 11i mounted on opposite sides of the door. The leve are pivoted as at 15 in hemispherical depremions 1G provided in lock` plates or roses 1T and iti mounted on the door. These depressions are provided with openings 19 tlni'oueh which the inner ends 2O oi the operatine` levers extend tor co* operation with the latch merhauism Within the barrel. lhe innerends oit the levers are extended `through openings 2l provided in `opposite sides ot' the barrel or easing' l and engage the dogs 'i2 in such manner that on. pushing ot' the lever 13 towards the door`r the dog' l2 engaging; the inner end of said lever will be rocked and withdraw the holt, and on pulling' outward of the lever 14:. the inner end thereot Will engage the other dog` 12 so as to likewise withdraw the holt. line `to this arrangement. assuming that the door opens inward and the lever 153 is outside ot the door,` to open the door in pushing;- ou the lever 13, the latch will he withdrawn, thus making' .'l'or an easier and quicker operation of openingr the door. By `grasping' and pulling on the lever lei, as in opening1 the door `from inside, such movement ort the lever likewise withdraws the holt.

As a locking means there is provided a pin Q2 extending through an opening 2S in the inner plate 14 and provided With a head 2i on its outer end. This pin formed *ith screw threads Q5 so that ou turning; thereof inta eloekwise direction. it will he advanced into a position to extend through an apen tured ear 26 dependingr 'from the portion Q0 of" the operatingr lever 13. Then the pin is .in this positionothe lever 13 cannot he moved and the door cannot he unlatehed from the outside hut is subject to ordinary operation through the lever 14 on the inside. The door is ln'ovided with a l'roove 27 Complementary to the opening C 'for the reception of the pin 2Q.

I provide a key actuated locking' means which is mounted in the enlargement D ot the opening; C and comprises a cylindrical key actuated leek, generally designated 28. which is screwed into a screw threaded opening Q9 in the upper end of the rose l?. On turningl the kev shoxvn at 80. in this lool;` a slidingf holt 3l provided at the rear end of the look is moved downward and engages the upper side oi the end 2t) et the lever 1l,` depressing said end. so that the dog' 1 2 cooperatingr therewith vrill he rocked and Will move the trame 9 and Withdraw the holt 3. On removal ot the keyY 30, the leek 29 turns as is Well knowm and moves the holt 31 to a position clear ot the end 20 ot the lever 1li, said lever being pivoted that it will gravitate into normal position. This is likewise true oi' the lever 13 as regards its return to normal position. Thus.` it will he seen that on turning the pin 22 so that it will engage the apertured ear Q6 and lock the lever 13 on the outside ot the door against operation, to open the door itl is necessary to insert the proper key in the lock .28 and operate said lock to cause the holt `thereoic to engage and operate the lever ifi so that the lock holt 3 will he Withdrawn. The romhined latch and lock oiE this `invention is much more simple as to constria-.tionn compaet and less expensive than the ordinary type ol door lock in `general use and that due to the arrangement ot the operatingr leversand their associated elements, the look may he open ated in a much more etiieaeious manner than the ordinary knoh and spindle operateddoor loek. A further advantage ijs that the loek olf' this invention may he installed `.niueh more cheaply and easily1 than the ordinary lock.

In Fiji. 6 the loek shown is ot the same Construction an the look shown in the other liejures except 'for an additional locking1 device whieh makes the lock as a whole partic ularlv suited tor hath roomandother doors f which are locked on the inside. The additional locking' means comprises an angular memher 35 tixed to the inner lever 14g and extending,T through the openiim` 19 downvardlxr' towards the lockingr pin 36 which pin is ofthe sliding' type instead of the sereiv type shown in the other 'torni oit the invetttion. i The, member has a slot 537 at its lower end in which the pin 36 isslidahle and said member is adapted to engage an enlargement 38 on the pin to cause tlie pin to. move on movement ot the lever 1.4i.

Assuming;l that `this iorm oi the leek applied to a hath room door, to look the door from the inside the pin Elli is pushed inward to lock the outside lever i against operation and therein; lock the door on the outside. Then the door opened .from the inside the operator in pulling on the lever 14 to` open the door, rocks said leverand auses the member 35 to move inward against the enlargement 3S on the pin htherehy moving the pin from locking,V position and releasingr the lever 12?. Inthis Way the aet ot opening' the door insures the unlocking of the lever 13 on the outside of the door, thus making it impossible `to open" the door Without preparing' the lock tor actuation troni the outside through the lever` I claim: i

l. A lock for doors or other Closures comprisiimv a locking' holt adapted to he mounted on the door or closure, spring means normally holding the bolt projected` levers,

means pivotally mounting the levers intermediate of their ends on a door or closure, operating means which 1s engaged by the inner ends of the levers which operates onA ing said bolt extended, levers, means :tor

pivotally mounting the levers on opposite sides of the door with the inner ends of the levers disposed adjacent to said bolt, means engaged by and operated on movement of the levers for withdrawing said bolt, which means operates on movement of either lever, said levers and operating means being arranged whereby when one lever is grasped to pull the door open, said lever is rocked and causes operation of said operating means and when the other lever is pushed to push the door open, said lever is rocked and causes operation of said operating means and means for locking against operation the leverwhich is to be disposed on the outside of the door, which means is subject to operation on the inside of the door.

3. A lock for doors or other closures com-y prising av locking bolt adapted to be mounted on theI door or closure, spring means normally holding the bolt projected, levers, means pivotall mounting the levers intermediate of their ends on a door or closure, operating means which is engaged by inner ends of the levers which operates on rocking said levers to withdraw said bolt, said levers and operating mechanism being arranged so that on pulling one of said levers said operating mechanism is operated and on pushing the other of said levers, said operating mechanism is operated, means for locking against operation the lever which is to be disposed on the outside of the door, which means is operable from the inside of the door and a key actuated lock mechanism which is subject to operation from the outside ot the door only and on operation of which rocks and operates the lever on the inside of the door.

il. The combination with al door, of a bolt associated with the door, spring means normally holding the bolt projected, levers, means for pivotally mounting the levers on opposite sides of the door with the inner ends of the levers disposed adjacent said bolt, operating means associated with the Lvers and bolt, which means operates to withdraw the bolt on rockingof eitherlever, said means and levers being arranged whereby the lever on one side of the door when grasped and pushed to open the door, will berocked and cause operation of said operating means and when the other lever is grasp-ed and pulled to open the door it will be rocked and cause operation of said operating means, means operable from the inside ot' the door for rocking the lever on the outside of the door, a key operated lock mounted in the door and means for operative connection between the lock and lever on the innerside of the door for locking for rocking said lever and causing the operating means to withdraw the bolt upon opera. tion of the key actuated lock.

5. .The combination with a door, of a lock barrel mounted within the door, al bolt slidable within the barrel, spring means normally projecting the bolt out of the. barrel, a. member to which the inner end of said bolt is attached, which member is slidably mounted within said barrel, an abutment head on said member, dogs pivotally mounted within the barrel having certain ends bearing against said abutment head and levers pivotally mounted between their ends on the door having certain ends projecting into the barrel and engaged with said dogs to cause the latter to rock on operation of the levers.

6. The combination with a door, of a lock barrel mounted within the door, a bolt slidable within the barrel, spring means normally projecting the bolt out of the barrel, a member to which the inner end of said bolt is attached, which member is slidably mounted within said barrel, an abutment head on said member, dogs pivotally mounted within the barrel having certain ends bearing against said abutment head and levers pivotally mounted between vtheir ends on the door having certain ends projecting into the barrel and engaged with said dogs to cause the latter to rock on operation of the levers, said dogs and levers being arranged whereby pushing of one lever towards the door iXes the operation of one of the dogs and pulling of the other lever away from the door fixes the operation of the other dog.

7. The combination with a door, of a lock barrel mounted within the door, a bolt slidable within the' barrel', spring means normally projecting the bolt out of the barrel, a member to which the inner end of said bolt is attached, which member is slidably mounted within said barrel, an abutment head on said member, dogs pivotally mounted within the barrel having certain ends bearing aga-inst said abutment head, levers pivotally mounted between their ends on the door having certain ends projecting into the barrel and engaged with said dogs to cause the latter lo rock on operation of the levers, u key actuated lool( mounted onhe (loot, zi`bolt`ziefuale l hyl'he look :unl adopted to engage und rock the level' on one. side ol the (looll und inemsopeizible on the `eide ofilieklool' opposite that leontuinngf the loeli for `rocking the level' on the outsidey of the door.

8. A lock for doors o1' other elosme comprising n` locking holt :ulnpled lo he ussoeiul'ecl with n klom', spring nornmlly hohlingsuiclboll extended, levers, means for plv otnlly mounting? he levers on opposite sides of `the door'wth Certain ends 0l: the levers disposed :uljaeentilo Suid boli', means engaeedhy and operated on movement of' the levels for withdrawing said holt, `which means operates on Inoveinei'lt of either level',

seiicl levers and operating means being' zn'- to pull lhewlomopem Suid leverfisll'ocliefl and causes operation ol?` said operating menus :unl when The other levell ispushod o push `the door open; Enid level.' is rocked nml causes operation of Suid operating means, `ineens 'loi' locking against operation (he lever which is to be dieposed on `the, Monti Side ol lhe door, wheh menus is Subject lio operation onA the inside of `the doorl :unl niennsvfhieli incident: lo pulling' on thellewei on the inside oli i'he` door :is .is required in order lo open they (loovznnl on consequent roekinlf;- olE Said level', will eliminatie-lilly unlock the hist nnrneel loekinginieans :md i'e lense the lever on lhe onlfside of `the door.

ANTON J. l KQPP.

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