US704279A - Sash-lock. - Google Patents

Description

Patented July 8, |902. C. STIMPSON.

SASH LOCK.

(Application led Feb. 27, 1902.)

(No Model.)

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CHARLES STIMPSON, OF PLAINFIELD, NFV JERSEY.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 704,279, dated July 8, 1902.

Application filed February 27,1902. Serial No. 96,003. (No model.)

T0 @ZZ 'LL/72,011?, t muy concern:

Be it known that I, CHARLES STIMPSON, a citizen of the United States, residing at Plainfield, in the county of Union and State of New Jersey, have invented an Improvement in Y Sash-Locks, of which the following is a specification.

My invention relates to a sash-lock adapted to be placed on the top surface of the upper rail of a lower window-sash at oneror both ends adjacent to the window-casing and includes means secured to the vertical rails of the upper sash to be engaged by the sash-lock to draw the sashes together and lock the same either in the closed position or in any desired and predetermined open position.

In carrying ont my invention I provide a case preferably of two parts and of any suitable material and I employ a swinging arm pivoted within said case and a hook-ended latch-lever pivoted to and operated by said swinging arm, so as to cause its hook end to move out of and into the case for engaging or releasing mortise-plates in the vertical rails of the upper sash, and so drawing together and locking the sashes or releasing the same. The mortise-plates are to be placed at predetermined spaced-apart distances.

In the drawings, Figure 1 is a plan of my improved sash-lock. Fig. 2 is a similar View with the cap ortop removed. Fig. 3 is a broken elevation showing the application of myinvention. Fig. i is a transverse section and elevation showing the window-sashes slightly apart. Fig. 5 is a sectional plan taken on line x ur, Fig. 3.

a represents a case made of metal or any suitable material, having a bottom and side walls 2, 3, 4, and 5 and provided with a cover a. The wall 3 is cut away at 6, and the walls et and 5 are cut away at 7, the wall 5 also being provided with the cut-away portion or notch 8.

I employ an arm b, pivoted at 9 to the bottom of the case a and adapted to swing on said pivot 9 within the case and within the limitations of the cut-away portions 7 8 of the walls 4 and 5. A latch-lever c, adapted to fit entirely within the confines of the case a, is pivoted at 10 to the swinging arm I) and not at all to the case. By swinging the arm h from the position shown in full lines in Fig.

2 to the position shown in dotted lines the hook end of the lever c is passed through the opening G in the wall 3 and turned into the position shown in dotted lines.

11 and 12 are guide-pins for the latch-lever c, and d is an integral projection within the case, which serves as a base to which the cover a may be secured.

Referring to Figs. 3, et, and 5, my improved sash-lock is adapted to be secured, preterably by screws 13, which pass through both the cover and the case, to the top surface of the upper or meeting railf of the lower window-sash and a't the respective ends adjacent to the window-casing e, the end 3 being placed iiush with the outer edge of the meeting-rail f. The vertical rails g of the upper sash are provided with metal mortise-plates 71in which the openings 14 are preferably central. These mortise-plates are set flush in the faces of the vertical rails, so that there are no projecting surfaces to interfere with the free movement of the upper sash, and the vertical rails are recessed at t' behind the mortise-plates 7L, ad-l jacent to the openings 14 therein. The mortise-plates 7L are so placed that the hook ends of the latch-levers may pass through the openings 14 in the plates, draw the sashes together, and lock them. The plates are also placed at suitable and predetermined 'distances apart, so that the sashes may be drawn together and locked in the desired position, either with the window open or closed. Figs. 3 and 5 show the sashes together and the window closed, Fig. 4 showing the sashes apart, the plates 7L in this figure being shown somewhat farther apart than in Fig. 3. The cutaway portion S of the walt 5 is provided to receive the swinging arm b in place to lock the device and prevent tampering with the same from outside the window.

I claim as my invention- 1. In a sash-lock, the combination with a case to be secured to the top surface of the upper rail or member of the lower sash, of a swinging arm pivoted within the said case, a latch-lever pivoted to the said swinging arm and movable within said case, and a mortiseplate secured in the face of the vertical rail of the upper sash and adapted to be engaged by the latch-lever, the swinging of the said arm causing the end of the latch-lever to move IOO out of the case, engage the mortise-plate, lock the sashes and draw the same together, substantially as spec-ined.

2. A sash-lock comprising a case having opposite side apertures, a swinging arm pivoted Within the case at a point distant from the retracted position at one side of the pvot of the arm to the position of engagement at the other side of the said pivot, and a rnor- I5 tise-plate engaged by the latch-lever, sul)` stantially as specified.

Signed by me this 2&th day of February,

either end and having one end projecting 1902.

through one side aperture, a latch-leverwith- 1 i in theccase pivoted only to the short end of l CHARLES STIMPSON' the swinging arln and at Vits free latch end lVitnesses:

moving through the opposite side aperture, the pivot of said arm and latch swinging from Gno. T. PINCKNEY, BERTHA M. ALLEN.

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