US1258072A - Sash-lock. - Google Patents

Description

A. WOLF.

SASH LOCK APPucATloN man MAY 4. Isn.

Patented Mar. 5, 1918.

@wd/"674W UNITE STT SASH-LOCK.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Application filed May 4, 1917. Serial No. 166,399.

To ZZ fui/om t may concern:

Be it known that I, ALBERT lVoLr, a citizen of the United States, residing at Traverse City, in the county of Grand Traverse and State of Michigan, have invented certain new and useful Improvements in Sash- Locks, of which the following is a specification.

This invention relates to sash fasteners and has for its object the provision of a simple and inexpensive device which may be readily applied to the sashes of a window and which will operate automatically to fasten the sashes when they are moved to closed position.

The invention is illustrated in the accompanying drawings and will be herinafter first fully described and then more particularly out in the appended claims.

In the said drawings:

Figure 1 is a view partly in elevation and partly in vertical section of a portion of a window showing my improved fastener in position, the sashes being slightly separated;

Fig. f2 is a similar view showing the sashes closed and the fastener in locked position;

Fig. 3 is a detail perspective View of the keeper member of the lock, and

Fig. 4 is a detail perspective View of the latch or lever member.

The window frame 1 may be of the usual or any preferred construction and the upper sash 2 and lower sash 3 will be slidably mounted therein in the usual manner. Upon the lower or meeting` rail of the upper sash, I secure the keeper member of the lock which consists of a base plate 4 provided with suitable openings for the reception of fastening screws or similar devices and having erected upon its upper side, intermediate its ends, a housing or keeper 5 having an opening G in its inner wall to permit the entrance of the latch. The interior of the housing may be hollow and the inner front wall 7 thereof will taper downwardly. as shown in Figs; 1 and 2, to be readily engaged by the locking end of the latch, as will be presently set forth. Upon the upper or meeting rail of the lower sash. I secure the latch member of the lock consisting of a base plate 8 provided with suitable openings 9 for the reception of screws or other fastening devices and having spaced standards 10 rising from its upper side. Between these standards, I arrange the latch 11 which is pivoted by a pin 12 to the upper extremities of the standards and the kupper' and inner edges of the said standards are curved concentric with the pivot, as shown at 13, to permit free movement of the studs 14 projecting from the sides of the latch, as clearly shown.` rIhe outer upper extremities of the standards are provided with lugs or rests 15 upon which the studs 14 will impinge when the latch is released and will thereby support the latch in the released position, as shown in Fig. 1. vWhen the latch is in ti e locked position, these studs will rest upon the inwardly extending portion of the upper edges of the standards, as shown in Figs. 2 and 4, and will thereby support the latch in the locked position. The latch is provided at its inner or upper end lwith a laterally projecting handle 16 by which it may be readily manipulated and which will add weight to the latch which will tend to hold it in the locked position, as shown in Fig. 2. At the outer or lower end of the latch, I construct a hook or curved finger 17 which is preferably disposed concentric with the pivot 12. By reason of this construction, when the latch is thrown downward, as shown in Fig. 2, the hook or locking finger will pass through the opening or entrance 6 to the keeper and the concave surface of the hook will engage immediately behind the convex inner surface of the wall 7 and will bind thereon to thereby hold the parts firmly together. When the latch is released from the keeper or fully withdrawn therefrom, the handle end of the latch will project over the keeper, as shown in Fig. 1, so that if the sashes be brought together into closed position, the upper extremity of the keeper. 18, will engage against the edge of the latch, as shown in Fig. 1, and will swing the same about its pivot so that the hook 17 will enter the keeper and hold the parts together.

It will be readily noted from the foregoing description, taken in connection with the accompanying' drawings, that I have provided an exceedingly simple and inexpensive fastener by which the sashes will be firmly held together when closed and will be automatically locked as the sashes are moved to closed position. No attention is, therefore, required to insure the fastening of the sashes when the window is closed and the possibility of leaving a window unlatched is overcome.

Having thus described the invention, what is claimed as new is:

l. ln a sash lock, the combination of a keeper having a locking wall at its inner side, a freely pivoted latch having a hook at one end adapted to pass below and engage behind said locking wall and bind thereon, rests above and below the pivot o the latch, and means on the side of the latch to engage against said rests, the latch extending across the top of the keeper when in engageinent with the upper rests.

2. In a sash lock, the combination of a keeper, a pair of standards having rests at Copies of this patent may be obtained for their upper ends, a latch pivotally mounted between the upper ends of said standards and constructed with a hook to engage the keeper, the edges of the standards extend ing inwardly from the said rests being concentric with the pivot ot the latch to pass downwardly and slightly outwardly, and projections on the sides of the latch adjacent the pivot thereof adapted to ride on said concentric portions of the standards and bear upon the said rests in released position and in locked position bear upon the edges of the standards at the bases of said concentric portions.

In testimony whereof I alliX iny si gnature.

ALBERT WOLF. [n s] five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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