US587878A - Sash-fastener - Google Patents

Description

I a screw 4 is fitted to slide.

UNITED STATES PATE T OFFICE.

GEORGE- F. STANSBURY, OF WEEDSPORT, AND EZRA IV. SMITH, OF ALBANY,

' NENV YORK.

SASH-FAISTENER.

SPECIFICATION forming part of Letters Patent No. 587,878, dated. August 10, 1897.

Application filed December 4, 1896. Serial No. 614,438. (No model.)

To all whom it may concern:

Be it known that we, GEORGE F. STANSBURY, of Veedsport, in the county of Cayuga, and EZRA XV. SMITH, of Albany, in the county of Albany, State of New York, have invented new and useful Improvements in Sash-Fasteners, of which the following is a specification.

Our invention relates to a sash-fastener which may be used, according to the manner in which it is attached to a sash, either to lock the sash in a raised position or when the sash is at the lowest point of its movement lock it in a closed position; 'and it consists of the fastening device described herein and pointed out in the claim, which forms a part of this specification.

In the accompanying drawings, which are herein referred to and form part of this specification, Figure 1 is a front elevation of a sash provided with our fasteners, one of which is arranged to prevent the sash from being raised and the other to hold the sash in a raised position Fig. 2, an enlarged and detached portion of a sash provided with one of our fasteners arranged to prevent the raising of the sash; Fig. 3, a horizontal section of Fig. 2 at the line X X; and Fig. 4, an elevation of the same, showing the outer face of the bearing-plate of our fastener.

As represented in the accompanying drawings, A designates a sash of ordinary construction. Said sash may be of any required form and size, and it should have in one or both of its vertical edges a recess B for receiving one of our fasteners, and the inner face of said recess should have a slight inclination in respect to the vertical edge of the sash.

O is a plate which carries the parts of our fastener, and it is bent longitudinally to conform to the face of the sash and the inner face of the recess B. An outer member 1 of said plate is preferably provided with a recess 2, having in its bottom a slot 8, in which Said screw has a head 5, which will slide in said recess and alford sufficient hold for a person to operate our fastener. The other member 6 of the plate 0 fits over the edge of the sash A, conforming to the inner face of the recess B, and

with 2. lug 8, in which the screw 4 is fitted to engage in such manner that the bearing-plate will move simultaneously with a movement of the head 5 of said screw. The outer face of the bearing-plate D may have a series'of transverse grooves or other means for increasing the frictional adhesion of said bearing-plate with the window-frame; but when our fastener is properly applied and fitted sufficient adhesion of the bearing-plate with the window-frame will be obtained when the face of the bearing-plate is unprovided with a roughened surface.

By forming a recess 2 in the plate 0 provision is made for allowing two sashes to move when arranged closely together in the same window-frame without interference of our fasteners, but when the lower sash alone is movable thescrew 4 may have a protruding head.

lVhen our fastener is used for holding a sash in a raised position, it must be arranged, as shown at the right-hand side of Fig. 1, so that a descending movement of the sash, while the binding-plate D is held in contact with the window-frame, will force said plate into a frictional contact that will prevent the sash from moving downward. To release the sash from its fixed position, the sash should be slightly raised to relieve the bearing-plate from its frictional contact with the windowframe. Then by moving the screw 4 toward thebottom of the slot 3 the sash will be free to be moved in an upward direction.

When our fastener is used for locking the sash from being raised, it is arranged, as 5 shown on the left'hand side of Fig. 1, so that the bearing-plate D will be carried'by its own gravity to the narrowest part of the space between the window-frame and the plate 0. Then an attempt to raise the sash will effect a greater degree of frictional contact between the bearing-plate D and the The outer face of said bearing. 55

window-fraine, and this contact can only be broken by first raising the bearing-plate D by means of the head 5, when the sash A will be free to be raised.

What we claim as our invention, and are desirous of securing by Letters Patent, is-

A sash-fastenenconsisting of a plate, 0, bent longitudinally to form members, 1 and 6 5 each of said members having a slotted opening formed in it, a bearing-plate, D, of a Wedge-like form and having a lug, 8, formed to project from its inner face and fitted to move in a slotted opening, 7, in the member 6, and a screw, 4, which engages in said lug and is fitted to move in a slot, 3, formed in Is

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