US717855A - Lock. - Google Patents

Description

N'o. 717,855. PATENTED JAN. 6, 1903.

s. 0. HOUGHTON. v I

LOOK.

APPLICATION IILED MAY 4, 1900. RENEWED NOV- 10, .1902.

NO MODEL.

in. W is; 7'"

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UNITED STATES PATENT OFFICE.

STEPHEN C. HOUGI-ITON, OF SAN FRANCISCO, CALIFORNIA.

LOCK.

SPECIFICATION forming part of Letters Patent No. 717,855, dated January 6, 1903. Application filed May 4:, 1900. Renewed November 10, 1902. Serial Rm 1 30,814. (No model.)

f all. whom, it nary concern:

Be it known that I, STEPHEN (J. HoUGnTox, a citizen of the United States, residing at San Frauciscofin the county of San Francisco and State of California, haveinvented certain new and useful Improvements in Locks, of which the following is a specification.

Mty invention relates to looks; and my object is to provide a strong, simple, cheap, and

' effective lock for windows which is also capable of use in doors, drawers, and other structures.

I shall hereinafter refer to a window as illustrative of any structure to be locked with which my invention is capable of use.

The principle of my invention can be embodied in three different types of construction. One is a keyless lock which is completely controllable from the inside of the window, so that the latter can be moved in either direction and can be locked when closed and at a certain height or, if desired, at any height. In another construction a key is necessary to make the lock completely controllable from the inside and permit the window to be raised, but it is controllable independently of the key, so far as unlocking and lowering the window are concerned. In the third construction the key is required in order to operate the lock and permit the moving of the window in either direction. Locks embodying the said constructions and all containing the principle of my invention are illustrated in the accompanying drawings, in which Figure 1 is an elevation of a lock with faceplate removed, showing the keyless lock referred to. Fig. 2 is a similar view of a keylock partly controllable independently of the key. Fig. 3 is an end elevation of the locks shown in Figs. 1 and 2. Fig. 4 is an elevation of the lock of Fig. 2 in position upon a window. Fig. 5 is a perspective view of the dog which controls the bolt. Fig. 6 is a similar view of the bolt. Fig. 7 is a view of an appropriate key.

Figs. 1 and 2 illustrate the lock on an enlarged scale. Fig. at shows about the actual size of the lock. The lock-casing A, Fig. 1, may be cast or formed in one piece and is provided with a closing-plate B. In one end of the casing is a slot 1, through which the gravity-bolt 0 projects. In the opposite end is a slot 2, through which the handle of the dog D projects. The bolt is pi voted within the case, the preferred mounting being shown in the drawings. The bolt has a round boss 3,which fits the seat 4:, the latter forming part of the casing. The dog D preferably is also provided with a round boss 7 to fit a bearing 8 of the case. These loose mountings enable the parts to be assembled in position without the use of pins or pivots, and I therefore prefer to use them as affording a very strong, cheap, and simple construction. However, both the bolt and the dog can be mounted on pins, if desired. Both the bolt and dog are gravity depriate locking positions, the bolt projecting through the case which is secured to the Windew and into a recess 5 in the window-frame E and the dog resting in a notch 6 in the upper edge of the bolt. In this position the vices which fall automaticallyinto their approwindow is locked by the bolt, while the bolt is in turn locked by the dog. The Window cannot be raised because of the solid bearing of the bolt upon the lower end of slot 1, and it cannot be lowered because of the dead-line of resistance from the notch 6 through to the pivot of the dog, whether such pivot be a pin or the curved seat 8. The lock shown in Fig. 1 is keyless and entirely controllable from the inside of the window. The dog is formed with a handle 9, which projects through the slot 2, so that it can be operated as a. lever. The pivoted end of the bolt has a projection 10 below this handle. By moving the handle downward the dog is first disengaged from the notch G, and if the movement be continued the projection 10 is struck by the handle 9 and the free end of the bolt is caused to follow the dog upwardly, as shown in dotted lines, until it has been withdrawn completely into the lock-casing, leaving the window free to be moved in either direction. If a series of recesses 5 is used, the window locks itself automatically at any desired height as soon as the lever is released, and both bolt and dog are permitted to drop into their respective locking positions.

In some cases, as in car-windows, it may be desirable to allow passengers to control the closing of a window, but compel them to call for assistance in opening it. In such cases the lock shown in Figs. 2 and 4: may be employed. The changes in construction necessary to convert the lock, Fig. 1, to a lock of the type shown in Fig. 2 are very slight. The projection 10 is removed from the bolt. A key-seat 11 is formed in the lower edge of the dog and a key-seat 12 in the adjacent upper edge of the bolt. These seats may be simple curved recesses, as shown. Means are provided for the insertion of a key through the front plate of the lock, such as the movable key-disk 13 shown, which is journaled in the face plate of the lock and is provided with a key-slot or with holes, as shown, according to the kind of key used. I have illustrated in Fig. 7 a key F having pins 14, which enter the keydisk and the key-seats in dog and bolt, respectively. \Vith the parts in the position of Fig. 2 if the window be closed it cannot be opened without the key, but if the window be raised and locked it can be lowered without using the key by depressing the handle of the dog and raising the latter from engagement with the bolt. The bolt can now yield to any downward pressure on the window and will move back into the lock-casing when such a pressure is exerted. In order to raise the window, the key must be employed to positively move the bolt. The key-seats are so arranged that the key bears upon the dog and lifts it before bearing upon and raising the bolt- This is shown in Fig. 2, where the small dotted circles indicate that on turning the key in the usual way its upper pin will act immediately upon the dog, while the lower pin moves some distance before striking the bolt.

In the third form of lock, in which the entire device is controllable by the key, the only change in construction from Fig. 2 is to remove the projecting handle of the dog and render the parts inaccessible by closing the of the case in the Patent Ofiice.

[SEAL.]

Correction in Letters Patent No. 717,855.

slot 2. In this case the key is required either in opening or closing the window, since the dog cannot be operated independently of it.

It will be observed that the locking-bolt when raised is at such an angle to the window-casing that it can have no binding action against said casing in the upward movement of the window.

I do not confine myself to details of construction herein described, and shown in the drawings, as I desire to avail myself of such modifications and equivalents as fall properly within the spirit of my invention.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1. A lock comprising a casing, a gravitybolt pivoted therein, and having both ends normally projecting from opposite ends of the casing, and a pivoted gravity-dog, adapted to rest upon and lock said bolt and having a handle projecting from the casing; the parts being constructed and arranged so that the depression of said handle first disengages the dog, and subsequently lifts the bolt by pressure upon one of its projecting ends.

2. The combination with a lock-casing provided with integral ribs or shoulders, forming seats, of a gravity-bolt loosely pivoted in one of said seats without pins or other securing devices, a gravity-dog similarly pivoted and adapted to engage and lock said bolt, and means for successivelyoperating said lock and said bolt.

In testimony whereof I have affixed my signature,in the presence of two witnesses, this 25th day of April, 1900.

STEPHEN C. I-IOUGHTON.

Witnesses:

L. W. SEELY, F. M. BURT.

It is hereby certified that in Letters Patent No. 717,855, granted J annary 6, 1903, upon the application of Stephen C. Houghton, of San Francisco, California, for an improvement in Locks, an error appears in the printed specification requiring correction, as follows: On page 1, the words and syllables vices which fall automatically into their appro comprising line 73, should be stricken out and inserted as a line after line 66, as now numbered, same page; and that the said Letters Patent should be read with this correction therein that the same may conform to the record Signed and sealed this 27th day of January, A. 1)., 1903.

F. I. ALLEN,

Commissioner of Patents.

It is hereby certified that in Letters Patent No. 7l7,855, granted January (5, 1903, upon the application of Stephen C. I'I()Uglll()l1,0f San Francisco, California, for an improvement in Locks, an error appears in the printed specification requiring correction, as follows: On page 1, the words and syllables vices which fall automatically into their approcomprising line 73, should he stricken out and inserted asa line after line 66, as now numbered, same page; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 27th day of January, A. D, 1903.

F. I. ALLEN,

Commissioner of Patents.

[SEAL]

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