US825377A - Double automatic window-lock. - Google Patents

Description

No. 825,377- PATENTED JULY 10, 1906. G, 6: J. A. BUTTRESS. DOUBLE AUTOMATIC WINDOW LOCK.

APPLICATION FILED SBPT.25.1905.

"mt NORRIS PETERS co., WAsmNoroM, u. c.

UNITED STATES PATENT OFFICE.

GEORGE BUTTRESS AND JOSEPH ALEXANDER BUTTRESS, OF LOS ANGELES, CALIFORNIA.

DOUBLE AUTOMATIC WINDOW-LOCK.

Specification of Letters Patent.

Patented July 10, 1906.

Application filed September 25, 1905- Serial No. 280.106.

To all whom, it may concern:

Be it known that we, GEORGE BUTTREss and JosEPH ALEXANDER BUTTRESS, citizens of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Double Automatic l/Vindow-Lock, of which the following is a specification.

An object of our invention is to provide a double automatic window-lock which will automatically lock the upper and lower sash of a window and is operated by a single operating-lever that unlocks both the upper and lower sash. This lock is a time-saving lock, as it is so constructed that a person can close either upper or lower sash instantly with the use of only one hand, a push downward or upward closing the window and the lock instantly locking it closed or at any desired nearly-closed position in its travel.

The lock is constructed to make it impossible for the lower sash to be raised or the upper sash to be lowered from the outside and also to allow the window-sashes to be left partly open for ventilation and still securely locked, to provide a lock simple and durable in its construction and positive in its action and one that can be easily attached to old or new buildings without interfering with the weights or woodwork.

Ve attain these objects by the device illustrated in the accompanying drawings.

Figure 1 is a fragmental perspective view showing a windowlock embodying this invention in place in a window, fragments of which are shown. Fig. 2 is an elevation of the lock, concealed parts being indicated by dotted lines. Fig. 3 is an edge view of the sash-lock. Fig. 4 is a view from the left of Fig. 2. Fig. 5 is a section on line a Fig. 3. Fig. 6 is an edge view of the upper and lower sash of a window provided with this look.

Fig. 7 is a longitudinal mid-section of one of the sash-racks. Fig. 8 is a reduced view of a blank from which the lock-frame is stamped and pressed. Dottedlines show lines of bending to form the frame.

In a general way 1 indicates a lock, which is preferably securely fastened on the lefthand side of a window-frame 2 by screws 3, passed through holes 4 in the main body 5 of the frame of the lock.

6 7 designate racks on the lower and upper sashes, respectively, the same being preferably strips of steel about half the length of the window-sashfitted at the left-hand side of the edge of the sash and secured by means of screws 8. The racks are provided with holes 9 at intervals to receive the catches of the lock. The rack 6 is fastened on the lower sash near the'outer side thereof, and the rack 7 is fastened to the outer sash near the inner side thereof, so as to avoid the sash-cords and to make it easy for carpenters to put themon and also to secure compactness and strength.

10 11 designate detents carried by the frame 5 and oppositely beveled. The detent for the inner sash is beveled on its upper face 12 and that for the outer sash is beveled on its under face 13.

14 designates springs acting on collars 15, which are fixed to the detents 10 and 11 to hold said detents in their engaging position. Said collars are illustrated in Fig. 5 and consist of a split washer pressed into a circle-slot 16 on the shafts or plungers 17 18, respectively, of the detents 10 and 11.

19 is a lever comprising a thumb-piece or handle 20, a detent-operating arm 21, and a rock-shaft 22, which shaft is pivoted at its ends in bearings 23 24, formed at the ends of the main body 5 of the lock-frame, said ends being pressed into form at right angles to the main plate or body 5 of the lock.

25 is a cross-bar engaging the collars 15, which are held thereagainst by the springs 14, which hold the detents 10 and 11 in catching position. The arm 21 of the lever 19 engages the cross-bar 25, so that when the thumb-piece 20- is operated the cross-bar 25 will act on the collars and retract the detents 10 and 11, thus at one motion releasing both sashes, allowing them to be moved freely. When the handle is released, the detents will beforced into engaging position by the springs 14, whereupon when the inner sash is lowered or the outer sash raised the same will be firmly locked. The cross-bar is loose on the shafts 17 and 18, so that either of the detents may be forced inward to allow the rack to pass the detents in closing either sash without disturbing the lever or the other detent.

The frame of the lock is preferably constructed of a single sheet of metal stamped into a blank 26, provided with screw-holes 4, thumb-piece hole 27, detent-holes 28 29, perforated bearing extension 23, case and bearwith detents not having beveled ends.

ing extension 2 1, provided with rivet-lugs 30 and with holes 31 for said lugs.

In manufacturing the lock the blanks 26 may first be stamped out and the holes stamped therein at one operation and may i aslant, as indicated in dotted lines in Fig. 3,

so that the lever 19 may be brought into place by inserting the thumb-piece 20 through its hole 27, the opposite end of the rock-shaft through its bearing-hole 33, and then springing the other end of the rockshaft into the hole 34 of its bearing 23. Then by striking the bearing extension 23 with a hammer the same may be brought at right angles to the faceplate 5, whereupon .the lock is completed without the use of screws or detached rivets.

On account of the detents 10 and 11 being oppositely beveled at 12 and 13 an apertured bar may be stamped out and employed in connection. with the detents and the same effect thereby obtained as if ratchet-bars having beveled teeth were used in connection It is much easier to provide detents with beveled ends than it would be to provide ratchetbars having beveled teeth in the place of the apertured bars 6 and 7, as shown in the drawings.

The arrangement of the rock-shaft 22, having a laterally-projecting frame 21 and a laterally-projecting thumb-piece 23 back of the inside plane of the window-casing, constitutes an inconspicuous and handy operating device not so apt to be displaced as if the thumb-piece 23 projected within the plane of the inner side of the window-casing.

The margin of the hole 27 forms a stop for the single thumb-piece 20 to limit the move ment thereof to prevent the operating-arm 21 from locking the detents in the retracted position, whereby the detents automatically lock the sash except when the thumb-piece 20 is being manipulated.

What we claim is g 1. A window-lock comprising a frame, a rock-shaft mounted in said frame, being provided with a thumb-piece and an operatingarm, spring-pressed detents having plungers each provided with a washer fixed thereto, and a bar operated by said arm and engaging said washers for retracting said detents.

2. In a sash-fastener, a frame, detents mounted in said frame and operating toward and from the sash, a cross-bar loosely mounted on said detents for retracting the same and allowing them to be retracted independently of each other, and a lever for operating the cross-bar.

3. A look comprising a face-plate having a housing formed integral therewith, said housing being provided with a plurality of openings and a plurality of diagonally-disposed bolts within. said housing and arranged to extend through said openings springs around said bolts, washers fixed thereon, a bar con necting said bolts, and a lever for operating said bar.

4. The combination with the frame and sashes slidable therein, of a lock in operative relation to said sashes, said lock comprising a face-plate having a housing formed integral therewith, said face-plate and housing being provided with a plurality of openings, bolts Within said housing protruding through said openings and spring-actuated means for holding said bolts normally protruding, a bar for connecting and operating said bolts independently of each other, and a leverfor operating both bolts.

In testimony whereof we have hereunto set our hands, at Los Angeles, California, this 29th day of November, 1905.

GEORGE BUTTRESS. JOSEPH ALEXANDER BUTTRESS.

In presence of JAMES R. TowNsEND, JULIA TOWNSEND.

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