US891818A - Sash-lock. - Google Patents

Description

PATENTED JUNE 3o, 1908.

H. W. GUVBRT. SASH 1.00K. APPLICATION FILED MAR.11, 1908.

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^ the supporting bracke't for the HENRY W. GOVERT, OF WATERFORD, NEW YORK.

SASI-I-LOCK.

Specification of Letters Patent.

Patented June 30, 1908.

Application 1ed March 11, 1908. Serial No. 420,343.

To all whom it may concern:

Be it known that I, HENRY W. COVERT, a citizen of the United States, residing at Waterford, county of Saratoga, and State of New York, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

The invention relates to such improvements and consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

Figure 1 of the drawings is a view in front elevation of the lower corner portion of a window-sash and the neighboring casing, showing my improved sash-lock in position to lock the sash closed. Fig. 2 is a similar view of the sash-lock in open position. Fig. 3 is a view in perspective of the locking lever detached. Fig. 4 is a view in erspective of Ilocking lever.

Certain objects of the invention are to positively and safely support a window-sash in raised or partly raised position, to lock the sash in closed position, and to facilitate the initial upward movement of the sash from its closed position.

The invention is shown and partly described in its relation to a window-sash, but,

. for certain purposes, it is adapted for use as a lock or support for various kinds of vertically slidingmembers.

Referring t0 the drawings, wherein the invention is shown in preferred form, 1, represents a window-sash adapted to slide vertically in the casing, 2, in the usual manner.

Pivotally mounted at, 19, upon the sash near its lower end is a pendulous lever, 5, having on its lower end a hook, 6, adapted to engage ,byI gravity the neighboring casing which is Qrovided at, 7, with a notch adapted to receiv "and form a stop for the hook, 6, whereby the sash is locked in its lowered or closed position.

The upper end of the pendulous lever, 5, is formed with an offset, 8, adapted to enter a recess, 9, in the casing, and adapted, when the lower end of the lever, 5, is swung away from the casing, to engage andbear upon the bottom', 10, of the recess 9.

The lever, 5, is adapted to be swung from the vertical position shown by solid lines in Figs. 1 and 2, to the horizontal position indicated by dotted lines in Fig. 2, said lever being provided with a flange, 11, adapted to be grasped by the hand of the operator, as a handle whereby the lever can be operated.

The lever, 5, when raised to horizontal position, is adapted to engage and bear upon a flange, 12, projecting from the upper edge of a plate, 13, attached to the face of the sash by screws, 14, inserted through apertures, 15, in said plate, the lever, 5, being provided with a pivot-aperture, 16, adapted to receive the pivot-post, 17, projecting from the face of the plate, 13, and tapped at its outer end at, 18, to receive a retaining screw 19. The flange, 12, serves to arrest the upward movement of the lever, 5, and, when the lever has been brought into engagement with said flange, said lever serves as a handle or lift for directly lifting the sash.

In raising the handle from the vertical position to the horizontal position a powerful lifting force is exerted upon the sash, due to the engagement of the offset, 8, with the bottom, 10, of the recess, 9, whereby an advantageous leverage is obtained well adapted to start, or impart the initial upward movement to, a sash which binds or is stuck or frozen in its casing, or slideway.

In order to render certain the locking of the sash in its closed position, I provide the casing with a projection, 20, in the path of the offset end, 8, of the lever, 5, so long as the levery occupies a horizontal position, which projection is of less width than the width of the lever, 5 and I cut away a portion of the lever, 5, at, 21, to adapt the same to freely receive the projection, 20, Vas the lever swings downward to, or occupies, a vertical position. The sash cannot therefore descend to a position lower than that which will permit the offset, 8, to enter the recess, 9, because before the offset, 8, passes the recess, 9, when the sash is moved downward, it will engage the projection, 20, whereby the downward movement of the sash will be arrested, and the sash cannotbefurther lowered except by swinging the lever, 5, downward, which swinging movement carries the offset, 8, into the recess, 9. The lever, 5, must thus always occupy a vertical position when the sash is closed, in which position it is adapted to automatically interlock with the casing by means of the hook, 6, and notch, 7. The offset, 8, also serves to support the sash in raised position, the casing being provided with any desired number of recesses, 22,

adapted to receive the offset, 8, with the le-` ver-in vertical position. In thus using the lever, 5, the lever is swung to horizontal position, and the sash raised until the offset, 8, is opposite a recess, 22, in the casing at the desired height, whereupon said lever is swung downward to the vertical position, thus locating the offset, 8, within the recess, and adapted to engage the bottom wall thereof to support the sash. When the sash is thus supported, it cannot be released or fall by vibration or jarring, or other unintended cause, for the reason that a downward movement of the sash must be preceded by a lifting movement thereof in order to withdraw the offset, 8, from the recess 22.

When it is desired to lower the sash, the lever is swung to horizontal position, thus serving, through the leverage exerted by the offset, 8, to raise the sash until the offset, 8, is fully withdrawn from the recess, whereupon the sash can be lowered.

For certain purposes of the invention, the offset, 8, may be omitted.

The lever, 5, may be pivotally mounted upon the sash in any known manner, and may be lprovided with any known form of handle device in place of the flange 11.

The sash may be provided with any known form of abutment or projection from its face in place of the flange, 12, located in the path of the lever, 5, when the same is swung to a substantially horizontal position, and adapted to limit the movement of the lever whereby the lever can be used to directly lift the sash.

This invention is particularly adapted for use in railway-cars and other vehicles, in the use of which the sash is subjected to material vibration and jarring.

What I claim as new and desire to secure by Letters Patent is 1. In a device of the class described, and in combination, a air of members, one movable vertically re atively to the other, and the other provided with a stop and a recess;

a pendulous lever pivotally mounted upon the relatively movable member, and having on its lower end a hook adapted to engage by gravity said stop, and having on its upper end an offset ada ted to occupy said recess in the gravity-indlilced position of the lever, and adapted to be withdrawn from said recess by a swinging movement of said lever.

2. In a device of the class described, and in combination, a air of members, one movable vertically re atively to the other, and the other provided with a stop and a recess a ypendulous lever pivotally mounted upon the relatively movable member, and having on its lower end a hook adapted to engage by gravity said stop, and having on its upper end an offset ada ted to occupy said recess in the gravity-indiiiced position of the lever, and adapted to be withdrawn from said recess by a swinging movement of said lever; and a projection on the relatively movable member in the path of said lever when swung to a position such that said odset is withdrawn from said recess.

3. In a device of the class described, and in combination, a pair of members, one movable vertically relatively to the other, and the other provided with a recess 5 a pendulous lever pivotally mounted upon the relatively movable member, and having on its upper yend an offset adapted to occupy said recess in close proximity to the bottom thereof, when the relatively movable member is in its lowermost position, and tol be withdrawn from the recess by a swinging movement of the lever, said lever having a handle; and a projection on the relatively movable member in the path of said lever when swung to a substantially horizontal position.

4. In a device of the class described, and in combination, a pair of members, one movable vertically relatively to the other, and the other provided with a stop and a recess,

and having a projection adjacent to the bottom wall of said recess 5 a pendulous lever pivotally mounted upon the relatively movable member, and having on its lower end a hook adapted to engage by gravity said stop, when the relatively movable member is in its lowermost position, and on its upper end an offset adapted to occupy said recess in close proximity to the bottom thereof when the relatively movable member is in its lowermost position, and to be withdrawn from said recess by a swinging movement of said lever, whereby said offset is brought into vertical line with said projection.

5. In a device of the class described, and in combination, a pair of members, one movable vertically relatively to the other, and the other provided with a recess; a lever pivotally mounted upon the relatively movable member, and having an offset adapted to occupy said recess, and to engage the bottom thereof, and adapted to be withdrawn from said recess by a swinging movement of said lever, whereby said offset is forced downwardly against the bottom of said recess.

In testimony whereof, I have hereunto set my hand this 7th day of March, 1908.

HENRY W. COVERT.

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