US890009A - Sash-lock. - Google Patents

Description

PATENTEDJUNE 9, 1908.

W. ZANDER.

SASH LOCK. APPLICATION r1121) 0012s. 1901.

w ,J 2mm I, human 0% M UNITED' STATES AET OFFQE,

WILLIAM ZANDER, OF CHICAGO, ILLINOIS.

SASH-LOGK.

Application filed October 8, 1907.

To all whom it may concern:

Be it known that I, WILLIAMZANDER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Sash- Lock, of which the following is a specification.

This invention has reference to improvements in sash locks, and its object is to produce a simple form of sash lock which may be easily constructed of sheet metal, and at the same time will be amply strong for the purpose of resisting effectually any attempt to raise the window sash when the lock is in operative position.

The attachment comprises a sash lock composed of two members, one of which is in the form of a bracket for permanent attachment to a window sash and the other of which is in the form of a wedge or block pivotally connected to the first-named member so as to be moved about a vertical axis either into the path of the adjacent sash or to one side toward the glass in the sash so as to lie in the space between the outer edge of the frame of the sash and the glass contained therein.

The invention will be best understood by reference to the following detailed description, taken in connection witlrthe accompanying drawings forming part of this specification, in which,

Figure 1 is a face view of a portion of a window at the junction of the sashes, showing the improved sash fastener in operative position to prevent the raising of the lower sash; Fig. 2 is a similar view on a larger scale than Fig. 1, showing the sash fastener in inoperative position; and Fig. 3 is a side view of the fastener in operative position, the adjoining portions of the window sashes being shown in section.

Referring to the drawings, there is shown a portion of a window with the upper sash 1 and the lower sash 2, and these sashes may be considered as indicative of any two structures movable one past the other and which it is desirable to lock against such movement.

While in the following description reference will be made to Window sashes only, it is to be understood that the invention is not necessarily limited to such use but may be used wherever it will perform the functions ascribed to it.

The sash fastener is composed of two Specification of Letters Patent.

Patented June 9, 1908.

Serial No. 396,481.

members. One member 3 is in the form of a flat plate adapted to be attached to one of the side bars of the upper window sash, and is provided on its lower edge with a downwardly projecting tongue 4 to serve to broaden the bearing face of the member 3 against the sash. This member is held in place by fastening devices 5 which may be in the form of nails driven through suitable perforations in the plate 3, or these fastening devices may be screws. On each side of the tongue 4 the plate 3 is struck up to form lugs 6 to which reference will hereinafter be made. One side of the plate 3 extends laterally beyond the inner edge of the side member of the sash frame and is there formed with a tongue 7 projecting toward the glass 8 of the sash. The entire structure 3 may be struck out from a single piece of sheet metal, say sheet steel, and can be made at trifling expense.

The other member 9 of the sash fastener is in the form of a wedge having a rectangular face with sides 10 of triangular shape and. a continuation 11 of the face bent over to form the thick end. of the wedge. Extending laterally from one side of the wedge body 9 is a bracket 12 formed in one piece with the body 9 and terminating in an angle tongue 13. The tongues 7 and 13 are joined by a rivet connection 14 which at the same time serves as a pivot, the heads of the rivet acting as broad bearing faces for holding the two tongues in contact and permitting them to turn on the longitudinal axis of the rivet.

The member 9 is made of one piece of sheet metal, say sheet steel, and may be stamped into the form shown at very little expense.

The base of the wedge constituting the member 9 is designed to lie flat against the side of the sash frame directly beneath the plate 3, so that the end extension 11 where it joins the base of the wedge shall lie immediately under and practically in contact with the lugs 6 before referred to. In order that this may be so the said end of the extension 11 is cut away as shown at 15 so as to straddle the tongue 4:.

Now, let it be assumed that the member 3 of the sash fastener is attached to one side of the upper sash of a window with the sharp end of the wedge 9 a short distance above the meeting rails of the two sashes. Should there now be an attempt to raise the lower sash its'meeting rail will be brought into contact with the lower end of the wedge body 9 and the tendency will be to either lift such wedge body with it or for the meeting rail to ride up the inclined edge of the wedge. The tendency of the lower sash to lift the wedge body is resisted by the engagement of the part 11, constituting the broad end of the wedge, with the lugs 6 at their point of connection with the plate 3, and should there be any looseness of the joint produced by the rivet 14 the lugs 6 will still resist any upward movement of the wedge body 9 so long as the latter is at all engaged with the said lugs. Should there be a tendency of the lower sash to ride up the inclined face of the wedge, as might occur were the sash a little loose as is often the case, then the wedge face will force the lower sash outwardly away from the upper sash until this outward movement is resisted by the engagement of the sash with the usual retaining strips. Thus, when the wedge body 9 is in operative position the lower sash is most effectually lOGl'GCl from upward movement, and, lil'ewise, the upper sash cannot be lowered since such movement is resisted by the lower sash.

When it is desired to put the sash lock in a position where it will not interfere with the raising of the lower sash or the lowering of the upper sash, then it is turned about the pivot formed by the rivet 14 until it lies wholly within the space between the glass 8 and the plane of the face of the side of the window sash. When the member 9 is in this last-named position the meeting rails of either sash will not engage said member or the plate 3, and, consequently, the sashes may be raised or lowered as the case may be without interference.

1. A sash fastener comprising a plate adapted to be secured to the side member of a window sash and of sufficient length to project beyond one edge of the same, and a wedge-shaped body pivotally secured to the plate and movable about its pivot into and out of operative relation to the other window sash.

2. A sash fastener comprising a plate adapted to be secured to the side member of a window sash, said plate having projecting lugs formed on its lower edge and a tongue also formed on its lower edge and projecting in a direction opposite the direction of proj ection of the lugs, and a wedge-shaped body pivotally connected to the tongue on the plate and movable about the same to a posia side bracket formed thereon and a tongue formed on said bracket, said tongue being pivotally connected to the tongue on the ate.

p 4. A sash lock comprising a plate adapted to be secured to the side member of a sash, said plate having a downwardly projecting tongue with lugs on each side thereof and another tongue projecting in a direction at right angles to the first-named tongue and oppositely to said lugs, and a wedge-shaped body having its wide end cut away to straddle the downwardly projecting tongue on the plate, said wedge-shaped body also having a side bracltet with a tongue pivotally and permanently secured to the last-named tongue on the plate.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

WILLIAM ZANDER. Witnesses:

H. A. LINNEMEYER, ANTON MICHEL.

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