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Publication numberUS1535393 A
Publication typeGrant
Publication dateApr 28, 1925
Filing dateJun 30, 1923
Priority dateJun 30, 1923
Publication numberUS 1535393 A, US 1535393A, US-A-1535393, US1535393 A, US1535393A
InventorsAlfred C Ballbach
Original AssigneeAlfred C Ballbach
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1535393 A
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Description  (OCR text may contain errors)

April 2 8, 1925.

A. C. BAL LBACH DOORLOCK Filed June 0, 192s 2 Shee'cs-SheeI l amm? April 2s, 1925;.v A

A. C. BALLBACH DOORLOCK Fi1e d June 30, 1925 2 Sheets-Sheet 2 a a Patented Apr. 28, 1925.

ALFRED C.' BALLBACHQOF DEWIROI'J?,V MICHIGAN# i To all lwhom t may concern: 1

Be it known that I, ALFRED (lBnnninioir, W a citizen ofthe United States of America, residing at Detroit, in thencounty of llifayne- 5 and State of Michigan,v have inventedfcertain new and useful.improvements inDoor-v locks, of which the following is a speciiifv cation, reterencebeing had therein to `the accompanying drawings.

This invention `relates `to door .locks and has l special reference `toa key controlled, knob actuating, double bolt lock that maybe advantageously used inconnection` with garage doors to lock edges lof a .door relative to door lock mechanism is intended i for hinged verticaldoors to` lock the upper and lower ends of thedoors, but thelocking mechanism is" applicable to a `sliding door and may vbe used horizontally ot the door to lock side edges thereof.

My inventionaims to provide a locking mechanism of ther-above type wherein reciprocable bolt-s may be `automatically actuated whena door isfclosed to look the door,

said bolts being articulated vwith knob actuatingmeans by which the bolts` may bel retracted. rIhe knob actuating ,means iscontrolled` by a key operated mechanism and all ot the mechanismfis coinpactly `arranged for mounting on `a .door so that vthe mechanism mayl be operated from either sideof thedoor; l

My door lock will be hereinafter,described and then claimed andreteren'ce willinow be had to the drawing wherein y Figure l is a vertical sectional view ot a portion of the door and lock showing the greater part of the mechanism; 40

with a cover `plate removed;

Fig. 5 .is a horizontal sectional view of the lock taken on the line lll-III oi Fig. 1; l? 4f is a perspective view ot garage. doors provided with a. lock in accordance with any invention, and

Fig. 5 is a longitudinal sectional view ot one ct `the spring` pressed bolts of the door lock.

Considering an installation off the door lock reference will first be had to Fig. a showingvertically disposed hinged garage doors 1 tramey or jamb. `The- Fig.4 2 is a. front elevation of thesameand .2swingable. relative to eachother and\ adapted to beflocke'd in a closed position relra ative to .a floorfor pavement Band a =door trame t, both providedV with sockets or 55 keepers 5, one of which is shown 'in connection with the floor 3. The doorl has a meeting rail 6 adapted to overlap the door 2, at the outer side/thereof,` and on the inner side of the'door 1, at theupper and lower ends there- 60 ot, are vertically alining casings 6 contain ingslidable beveled bolts 7 which are held normally extended by the expansive force l of springs, so thatfsaid bolts maybe retracted by engagement with the keepers 5 'to auto--65 inaticallysnapinto said keepers when the door 1 is swung toa closed position. The

' inner ends of theslidable bolts 7 areloosely connected to vertically alinin'glrods 9 with the loose connections 10 permitting` oi the 70 slide bolts being retracted by engagement with the keepers t, without shifting :the rods 9.-

The edge ofthe doorLintermediate the casings 6, is provided with two openings 1 1` 'I5v l andf12, the latter communicating with end recesses land 14: `Mounted over thefrecess 13 and the inner end of the opening-,11m a lock plate 15 held inV place by screws 16., At zthe upper end of theY lock -platel isk e0 an opening 16a registeringwith the opening-l 11 and on saidfplate is a casing 17l having a cylindrical chamber 18 and a rectangular chamber 19, both of which 4are adapted to be closed by a cover plate' 2O suitably mounted 85 on thecasingl?. y y

The cylindrical chamber 18 communicates.

with the openings 11 and 16a and' `free 'toi rotate in the openings 11- andltis a knobv shaft 21 having shanks Q Zand 232 One of 90 the shanks 23 "extends through Van escutcheon plate 2li, suitably secured to" the outer side of the meetingrail (i, `and this particular vshank has an outside knob Aor crank 25@` The other shank`23 uextends through the 95 cover plate 20,` and'. escutcheonfplate 26 Carried therebyyand 1s provided with a knob i or crank 27.

On the knob shaft Ql'within the chamber 18, is a double crank 28 to which 'the ends of 100 the rods) are connected, said rods extending through openings 29 provided therefor in the casing 17 with one or both oi said rods provided with turn-buckle or take-up device 30.

Fixed in the recess 1l by screws 31 is a conventional form ot key operated lock mechanism 32 having` its bolt 33 provided with an extension 34 extending through the opening 12 into a. rotatable members 35 carried by the lock plate 15 and partly housed in a recess 3G ot said lock plato. rlhe rotatable member extends through an anchor plate 37 mounted in the recess 13 as anchoring means for the screws 81, and said rotatable member has outstruck cam `portions 38, the purpose ot which will hereinafter appear.

Mounted on the shank 22 ot the knob bolt '21 and rotatable in the chamber 18 is a eircular head 89 provided with a notch 4.-() to receive the head L11 of a plunger e2, said plunger head being slidable in a groove or way 43 connecting the chambers 18 and 19 ot the casing 17 The plunger head l1 is provided with anti-frictional rollers le so as to reduce friction on periphery of circular head and easily slide in the notch and the groove 118. l/Vith the plunger head l1 extending' into the notch l0 ot the head 39 the knob shaft 21 is locked against rotation and consequently the rods 9 cannotbe shifted to retract the spring` pressed bolts Y.

The plunger 4:2 extends through a detachable horizontally disposed partition in the chamber 19 and incireling said plunger, between the partition l5 and the plunger head l1 is a coiled expansion spring 46 holding the plunger normally elevated, either in the notch 40 or against the head 39 et the knob shaft 21.

On the lower end of the plunger 4-2 is a notched head l? providing clearance for the lowermost rod 9 and said notched head is normally engaged by the cam portions 38 of the rotatable member 35. rlfhe notched head is also normally engaged by cam portions 4-.8 of another rotatable member 49, carried by the cover plate 20, said rotatable member having a conventional term of knob or crank 50.

Without unlocking the lock mechanism 32 the knob may be turned, in either direction, to lower the plunger' head L1-1 and release the head 89 so that the knob 27 may be used to rotate the shaft 21 and manually retract the bolts 7.

The lock mechanism 32 may be actuated by its key to turn the rotatable member 35 to retract the plunger head t1 or set t-he plunger head in a lowered position, so that-the knob bolt 21 may be rotated by either ot the knobs 25 or 27 to retract the spring pressed bolts T.

From the outer sideA oit the door 1 it is necessary to operate the lock mechanism before the knob 25 can be used, but at the inner side of the door the knob 50 can be used at any time independent of the lock mechanism 32 to release the knob shaft 21 so that the knob 27 can be used to rotate the knob shaft.

lt is thought that the operation and utility ot the doei' lock will be apparent without further description, and while in the drawing there is illust-rated a preferred embodiment olf my invention, it is to be understood that the structural elements are susceptible to such changes as are permissible by the appended claims.

Vilhat l claim is 1. A lock comprising` spring pressed bolts, a knob shalt, rods connecting said spring pressed bolts to said knob shaft so that said shaft may retract said bolts, a head on said knob shaft provided with a notch, a plunger provided with ant-i-rictional devices adapted to engage in the notch ot said head and prevent rotaton ot said knob shaft, and a key controlled lock mechanism adapted to retract said plunger to release said knob shaft.

2. A. lock as claimed in claim 1, and a head on the lower end ot said plunger a knob actuated rotatable member coaxially of said key controlled lock mechanism, cam members operatable by said key controlled lock mechanism and said knob actuated rotatable member adapted to depress the lower head of said plunger, sait knob actuated rotatable member being adapted for retracting said plunger independent of said key controlling lock mechanism.

3. A lock comprising bolts, a lock casing, a shalt, rods extending into said lock casing and connecting` said bolts and shaft so that said shaft may actuate said bolts, a head on said shaft, a plunger adapted to engage said head and prevent actuation of said shaft, a head on the lower end of said plunger cut away to provide clearance lor one of said rods, and cam members engageable with opposite sides of said plunger head and operatable independent of each other tor depressingsaid plunger to release said shafthead.

l. A lock as claimed in claim 8, wherein one of said cam members, is key controlled.

5. ln a lock, a bolt actuating shaft, a plunger adapted to lock said shaft, a head on said plunger', rotatable members at opposite sides ot said plunger having outstruck cam members normally engaging said head and adapted to depress said head to retract said plunger, and means holding said plunger normally extended to lock said shaft.

(3. ln a lock, a bolt actuating shaft, a plunadapted to lock said shaft, a head on said plunger, (3o-axial rotatable members at opposte sides of said plunger, said members members being operatable independent of 10 lavng outstruok oam .porto s normally eneach other. `gauging said head and adapte to depress said In testimony whereof I a-HX my signature head to retract said plunger, means hold- `in presence of two Witnesses. ing said plunger normally extended to look said shaft, a key operated lock mechanism ALFRED C. BALLBACH. 'for eontrollngone of said rotatable mem- Witnesses: bers, and a knob for controlling the other KARL I-I. BUTLER,

of said. rotatable members, 'said rotatable ANNA M. Donn.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5487289 *Jun 23, 1993Jan 30, 1996Herman Miller, Inc.Lock assembly
US6729169 *Mar 25, 2002May 4, 2004Randall L. MooreDual cylinder deadbolt adjunct
U.S. Classification70/471, 70/464, 292/40, 70/485, 70/118
International ClassificationE05C9/04
Cooperative ClassificationE05C9/043
European ClassificationE05C9/04E