US1036346A - Door-lock. - Google Patents

Description

J. SGHMITTBERGBR.

DOOR LOCK.

APPLICATION FILED SEPT. 19, 1911.

1,036,346.. Patented Aug. 20, 1912.

- To all whom it may conce-rn JOSEPHkSCHMITTBERGER, OFlWEST HOBOKEN', NEW JESEY.

DOOR-LOCK.

ASpeci-eation of Letters Patent.

Patented Aug; 20, 1912.

:Applicaton iledvseptember; 19;,1911. Serial No.,650,075.

Be it known thatl, JOSEPH-*Sonnin- BERGER, a citizen of the United States, and residing at West Hoboken,. in` thecounty of Hudson and lState of NewJersey.have in-Z vented certain new and .useful 11m-provements in Door-Locks, ofwhich the follow ing is a specification, such as will enable those skilled inthe art -to which it appei tains to .make and-usev thesaine. This invention -relates to door locksg and the objectthe'reo'f` is to provide an -improved device of this class in Iwhichthe ordinary latch bolt-operated by the door knob and the ordinary lock bolt operatedby a key are omitted, and in which is employed a spur wheel which operates in connectionl with a slotted strike plate secured to the door frame and which operates bothfor the purpose of latching the dooraml locking it. zt0gether with .knob and spring-operated devices ,for securing saidv spur wheel against rotation when the door is latched, simply; and akeyoperated bell crank lever forfsecuring-said wheel against rotation when-,the door is locked. l

, The invention is fully disclosed in the foll' lowing specification, of which'E-thec-acnompany-ing drawing` forms.- part, in which the separate parts` of .my 4improvement earegdesignated by suitable,reference'fcharaeters in each of the` views, and inwhich proved lock secured in indoor, one side of the lock casing being removedand part of the and Fig. A8. aiacey viewyof a:,\stri ke fplate .which I employ.

' .In the ,drawing forming part Aof this speciL i5@ ication Ifhavefshown at a part of a door and lat B a part of adoor fraineprovided with the usual ,moldinglfst-rip C against en `:,closed, and. se-

which the door strikes' w cured.l to-the doorframe B is'aistrike plate d whichis shown detached in Fig. 8 and which fis preferably. provided at oneside edge with l an extension Z2 in which are-formed parallel lslots 'd3 which range longitudinallyof the plate al and extend into theaniiddle portion thereof aselearly-shown.

In the practice ofzmy invention I provide a lock casing a having afa'ce plate a2, and said lockcasing and face plate are countersunk i or mortised into the door in the usual mannei', the ,casing a being secured to the face plate. a2; at a3, and the face plate a2 being also provided with. a transverse aperture ai"L through which pass the teeth of' a lspur wheel c` rotatably connected at egon a plate ofthe .face-plate a2.'

e3'or vother support secured to the inner side I have also shown at fthe ordinary knob shaftwith which, in

practice, the inner and outer door knobs are connected in the vusual manner, said knobs being not shown7 and this shaft is angular incross-section and mounted thereon within the-lock casing a 1s a sleeve g having later# ally directed fingers g2, said shaft and'sleeve being of the usual form.

Between the knob'shaft f and the face -plate a2- a-re. mountedtwo parallel guide ,blocks h and z' and the upper guide block 'i isgshowndetached in Fig. 7 and is provided with a projection 2 and said guide blocks fare riveted to;t he side a5. of the lockcasing,l and between saidguide block is a bed -plate h3 lwhich is also .riveted to the side a5 of the lockcasing,v and movable between the .blocks h and i, andresting on the bed plate h3, is a bolt c provided with a central longitudinal' slot or opening [c2 and the inner end of which is formed into a yoke-shaped head ,7c3l having outwardly directed hook members. 7a4. in connectionwith which the the bolt 7c inwardly, 'and .the bolt 7c is pro- ;vided at its youter or front endv .with a projecting nose piece h5 which is beveled ton, ione side and which bperatesnn connection l with theispur wheel e or the te'eth.thereof.-`

rWithin the central longitudinal slot la? of the bolt k is placed a'gspiral spring k6 one end ofvwhichA isfsecui'ed-I-to' the bolt k? and the other end .to a :pin los; secured in the bed v plate IL?. :and thefside a5 pf the lock casing. Below tlieguide. block h are parallel guide ;bars m and m2 whichare also secured to the side a5 of the lock casing and -between which is= mounted a longitudinally movable lock =-bar nprovided in its fron-t endporti-on' withal longitudinal slot n2, and in its bottom rear fedge portion with a recess n3, and centrally of its inner side with a projecting lug n4, and mounted o n thecasing is a bell crank lever 0 thearm 02 of which overlaps `the bar nwand is provided with a recess o3 which corresponds withv and is adapted to receive the lug n4, and secured to the plate a5 of the lock casing is a pin 04 which passes through the slot n2 in the bar n and through a hole o5 in theangle of the bell crank lever o.

The arm 06 of the bell crank lever ranges vertically when in its normal position land parallel with the4 face plate a2" of the lock casing, and said arm passes backof the nose piece lo of the b'olt c, and back of the eX'- tension 2 of the guidel block c', and secured to the arm o6 1s a splral spring 07 which 1s alsosecured. to a stud o8 secured to the side plate ai of the lockr casing. -The side a? of the lock casing is detachably secured in' position by a screw p passed therethrough and into the stud o8, and said side a7 is provided with a hole p2 through which the knob shaft f passes and in which one end of the sleeve g has a bearing, the `other end of said sleeve having'a bearing in the side plate a of the lock casing, and at the opposite sides of the hole p2 are secured parallel blocks p3 on which the side members ofthe yoke-shaped head k2 of thebolt bear. The

side a7' is also provided at right angles to the blocks p3 with a block 1 which is shown in longitudinal section in Fig. 3 and which forms a guide or bearing for the arm 02 of the bell crank lever o, and which 'also serves to hold the bar a imposition between the vguide bars maand m2, and said 'side a7 is also provided with a guide block s which bears on the nose piece c5 of the bolt la.

The operation will be readilyundcrstood from the foregoing description, when taken in connection with the accompanying drawing and the following statement thereof. It vwilly-be seen that the side plates 0,5 and a? of the lock casing are cutout at t to provide room for the spur wheel e as is also the faceplate a2 of the lock casing, and sup# pose the door tov be closed as shown in Fig. 2,

all that is 'necessary is to turn the shaft f and pull or shove the door outwardly. This operation withdraws the bolt 7c and its nose piece from the teeth of the wheel e and allows said wheel to` turn, and after this operation is performed and the knob released, the spring los forces the bolt k back into the position shown in Fig. 2 and the door may be closed by simply swinging it into the closed position, in which operation the teeth of the wheel e catch' in t-he`y slots d'of the strike plate and rotate said wheel, and at thesame time other teeth of 'said wheel strike the beveled side of the nose piece 765 "of .thel bolt and successively forces operation of closing. the door mayvbeperformed by means of one of the knobs on the atm in Fig. 1 and holds the said arm in the raised position shown in dotted lines in said ligure, and this operation forces the arm 06 of said bell crank lever outwardly as shown in dotted lines'in Fig.' l and causes it to engage the teeth .of the wheel el and prevent its rotation, and this locks the door 'as Will be readily understood. In order .to unlock .the door, Y the'` key is turned in the reverse direction. This operation forces the bar n inwardly and 4w1thdraws the lug h4 from the .position shown at in v Fig. l back into the position shown in'full tion shown in full lines in said figure and the door is unlocked. The free end port-ion of the arm -o6 of the bell crank lever 0 is ofset from the plane ofthe arm 02 as v clearly shown in Fig. 5, and is provided in the back thereof with -a beveled recess 09 so that it will enter the space between the teeth of the wheel e.

From the foregoing description it will loe-l seen thatthe wheel e operates both asa means for latching and a means for lock# ing the door, and while I have shown the strike plate d as secured to the iframe it will be understood that said strike plate maybe countersunkV in said frame if desired, and other changes in and modifications of my improved lck mechanism may be made,- within the *scope of the appended claims,

without departing from the spirit of my inl` vention or sacrificing its advantages. y

*Although I have described my improvement as a door lock, it will be apparent that the same may be used in connection with other stationary and swinging members or devices.l Y

Having fully described my invention, what I claim as new. and desire Letters Patent, isz-l f nl. In a lock of the class described, a slotted strike plate. adapted to be secured to a stationary member and a lock casing adapted to be secured in a Swingin O having a knob-operated s afbt which passes therethrough and through said swinging member, said lock casing being provided with a rotatable spur wheel the teeth of` which are adapted to lengage said strike plate, and a spuug-operated bolt having a to secure by ila `member and 90 lines in said figure, at which time the spring 07 forces the bell crank levero into the posi-v beveled nose Aadapted to engage said spur wheel, said bolt being adapted to be moved out of engagement with the spur Wheel by turning the knobshaft, and said casing being also provided with a locking crank lever .adapted to be operated in one direction by a key so as to lock said spur wheel against rotation, anda spring for throwing said crank lever out of' engagement with said wheel.

2. In a lock of the class described, a casing provided with a face plate having a transverse slot formed therein, a' spurwheel mounted on the inner side of said face plate and the teeth of which pass through 'said slot, a sliding spring-operated 'latch bolt adapted to engage said spur wheel, and a knob shaft for moving said latch bolt out of engagement with said wheel, said casing being also provided with a locking crank lever operated in one direct-ion lby `a key and adapted to engage said wheel, and in the opposite direct-ion by a spring.

3. In a lock of the class described, a casing having a face plate provided with a transverse slot, a spur wheel mounted inwardly of said face plate and the teeth of which project through said slot, a'slidably mounted latch bolt adapted to engage said spur wheel, a spring for throwing said bolt into operative engagement with said wheel, a knob shaft for throwing said bolt out of engagement with said wheel, a sliding bar mounted below and parallel with the latch bolt and adapted to be operated by a key, a locking crank lever mounted on said bar and one arm of which is adapted to engage said wheel/and to be operated`by a key when the sliding bar is operated, and a spring for moving the locking cranky lever out of engagement with said wheel when the bar is moved in the opposite direction by the key.

4. In a lock, a casing having a face plate provided with a transverse slot, a spur wheel mounted inwardly of the face plate and the teeth of which extend through said slot, 'a horizontally movable latch bolt mounted in said casing and tensionally'held in engagement with said wheel, a knob shaft passing through said-casing and means whereby the turning vof said'shaft will throw said bolt out of connection with said wheel, and a key operated lever also adapted to engage said wheel. A

5. In a lock of the class described, a strike plate adapted to vbe secured to a swinging member and havingy a horizontal row of ver-- tically arranged slots, a casing adapted to be secured to a swinging membery and having a face plate provided with a transverse slot, a spur-wheel mounted inwardly of the face plate and the teeth of which extend through the slot therein, a horizontally movable latch bolt mounted in said casing and tension'a-lly held in engagement with said wheel, a knobshaft passing through said caslng, means wherebv the turning of said shaft will throw said bolt out of connection with said wheel and a key operated lever also adapted to engage said wheel. A

Intestim ony -that presence of the subscribing witnesses this 18th day of September 191 I claim the foregoing as my invent-ion I have signed my name 1nV JOSEPHSCHMITTBERGER.' I

Witnesses:

C. E. MULREANY, FRANKL G. AT LEE.

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