US1602264A

US1602264A - Door-locking device

Info

Publication number: US1602264A
Application number: US653630A
Authority: US
Inventors: Robert B Hutchison
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-07-25
Filing date: 1923-07-25
Publication date: 1926-10-05
Anticipated expiration: 1943-10-05

Description

Oct. 5 1926. 4 1,602,264 5R. B. .HuTcHlsoN DOOR LOCKING`DEVIGE Filedl July 25. 1923 ylNv N'roR .5. QM'VM/ 6m uti Fe.tentati @caga massa -nooit-Lomme nnvrcn.

Application led. July 25,

li/ly invention relates to door bolts, such` as is employed either at the top, bottom, or at both extremes of large doors such as those of garages, barns, or other buildings.

The object of my invention is to provide i device of the above class embodying such -haracteristics as practicability, simplicity f structure, strength and durability and; hat can be manufactured Vand sol-d to the consumer at a reasonable price.

Vith the above object ink view, my invention consists in certain features of construction, arrangement of parts, their cornhination and co-operation as will be hereinafter more fully described and particularly pointed out in the appended claim.

ln the accompanying drawings, forming part of this specification- Figure 1 is a vertical front my improved bolt. l

Fig. 2 is a vertical side elevation of the same. f

Fig. is transverse section through the ldefice on thepline ll--lll of Fig. 1, and

4 is a plan View of the striker plate er keeper. f

The device comprises a boltholder or attaching means of sheet metal including the body portion, 1, h ving outstanding end lugs, 2, and the intermediate and outstandparallel ianges, 3, spaced at their ends from disposed at right angles tov said lugs,2. The body portion is provided with holes, 4, foi1 the reception of screws to fasten the same to'a door, 5. The bolt, 6.formed of a substantial bar of metal, lcircular in crosssection, is loosely fitted through openings in the lugs, 2, and is provided with 'a conical or tapered point, 6', of about fortyiive-degrees, and with a locking pin, 7 the bolt, 6, is rigidly secured an Voperating extension in the form of a rod, 8, yof conr siderable less area in cross-section, the free end of which is formed into a loop, 9. This extension, 8, is looselyrfitted through openings in the spaced brackets, 10k-and l11, respectively, each of which is providedwith y holes, 12, through which screws pass in securing the brackets .to the door. Disposed about the extension rod, 8, between the connecting end of the bolt and bracket, 10, is a `spiral spring, 13, which maintains tension on theY bolt at all times. A' striker plate. or keeper, 14, provided, 'with a bolt elevation of opening,prefer ably oftaper form, and with ToV 192s. ,serial ,653530. i

screw openings, 16, is attached by screws to the door frame, 17, in line with theibolt. rlhe device, as shown in Figs. 1 and 2, 1s in locked position'. To unlock the bolt, simply grasp the loop portiom, of the rod extension, turning to the .right to cause the locking pin, 7 to pass from'thev 'space between the lug, 2, and upper end of flange l3.

lhen by pulling downward the spring, 18,

is overcome and the bolt, 6, caused to pass' out of the striker plate 14.'` Thev pull is continued until the locking pin engages the lug 2, at which time the rod is turned to-V .ward the left, or right, causing the locking pin to engage beneath the lower end ofthe flange 3, locking the bolt in open position; To lock the bolt itis only necessary to turn the rod to release ythe locking pin 7 and allow the action of the springy 13 to force the bolt in locked position.

By `forming the bolt with a conical point, preferably of `about forty-five degrees, it becomes self centering with the striker plate, 14, an-d it may be readily forced into the striker plate, opening even though the door shouldsag sufficient to cause unalignment between the bolt and the striker plate.

.AYaiin by providing the bolt with a rigid extension the operation is positive, besides the extension being of much less area in cross-section it is much llighter and reduces the cost than if it were all of uniform diameter and rpermits the bolt, 6proper to beA of such diameter as will give great strength.

While the device is Vshowngas applied to the upper partof a door,'itris.evident that it may be applied to the lower part, or on each end, as desired.V l

Various modifications in structure and' details maybe madewithout departing fromv the spirit of my inventionk and be within the scope of the appended claim. 'f

I claim as' myinvention and" desire to secure by Letters Patents- A door locking device having a bolt holder comprising a flat plate adapted to be' attached to a door, upturned parallel flangeson each end of said plate and apertured `in alignment with the longitudinal center thereof, upturned parallel flanges at each side of said plate and disposed longitudinally thereof vwith the ends .of said flanges terminating in spaced relation from said end flanges, a slidable bolt member disposed through the apertures of said end flanges and guided between said side'langes for longitudinal movement relative tojsaid plate, a stem' extendingV from Said bolt member, spaced brackets supportingsaid stem at intervals throughout its length, said brackets being adapted for attachment to a door on which said plate is mounted, anfop'erating handle on said stem for manual movementV 1 of said bolt member, a coil expansion spring surrounding said stem between one of said brackets and the bolt memberA for normal projection-bf'said bolt mem-ber,V and. a ref taming'pin Carried by Said bolt member for Yengagement behind Said side flanges lfor- ROBERT B. HUTCHISON.