US841655A - Sash-fastener. - Google Patents

Description

R0 841,655. PATENTED JAN. 22, 1907.

G. W. ADAMSON.

SASH PASTBNBR.

APPLICATION EILBD OOT.6, 190s.

WITNESSES: Z2 [/VVE/VTOR. 4, 9 l By F A from/5 Y5 UNITED sra rns PATENT orrroia.

SASH-FASTENER.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed October 6, 1906. Serial No 337.806-

T0 all whom, it may concern:

Be it known that I, GEORGE WARNER ADAMSON, a citizen of the United States, re-

siding at Crider, in the county of Caldwell and State of Kentucky, have invented a new and useful Sash-Fastener, of which the fol lowing is a specification.

This invention relates to sash-fasteners; and its object is to provide a simple, durable, and inexpensive device of this character which can be readily fastened to a sash and which will securely lock it in closed position or support it in any position to which it may be raised, thereby rendering it particularly adaptable for use in connection with sashes to which balancing-weights are not secured.

With the foregoing and other objects in view the invention consists of certain novel features of construction and combinations of parts, which will be hereinafter more fully de scribed, and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings, Figure 1 is an elevation of the fastener, showing the same in position upon a sash and looking it in lowered posi tion. Fig. 2 is a similar view showing the fastener positioned to support the sash in a raised position. Fig. 3 is an end elevation of the pivoted member of the lock, and Fig. 4 is a perspective view of the fixed member thereof.

Referring to the figures by characters of reference, A is'a sash, and B is the stop-strip of the window-frame C. Sesured to the sash A is a screw 1 or other suitable device constituting the pivot for the movable member of the lock, and this device has a head which is adapted to travel within the countersunk outer end 2 of a curved slot 3, formed within the central portion 4 of the movable fastener 5. A substantially circular extension 6 ex tends from the central portion 4 and constitutes a weight, while another extension 7 projects from the opposite end of the portion 4 and has a curved working face 8, disposed eccentrically in relation to the slot 3. A re cess 9 is formed within the curved face 8 of the extension 7 at one side of the center thereof, and this recess is of gradually-increasing depth from its upper to its lower end, said lower end being disposed adjacent the center of the face 8 and having an overhanging wall 10, which constitutes a hook for the purpose hereinafter more fully set forth.

A small plate 11 is seated within a suitable recess in the stop-strip B and has a spur 12 at one end and an opening 13 to receive a screw 14, whereby the plate may be securely fastened in position. A downturned hook 15 extends from the upper portion of this plate and in the same plane as the recess 9, so that under certain conditions said hook will project into the recess and overlap and engage the overhanging wall 10 thereof.

When it is desired to lock the s ash in lowered position, the member 5 is swung in the direction indicated by the arrow in Fig. 1, and the weight 6 will cause the recessed face of the cam portion 7 to engage the hook 15, the projection 1 acting as a pivot and bearing against the upper end of the slot 3. It will be apparent that when the parts are in this position it will be impossible to raise the sash, because the hook 15 will engage the overhanging wall 10 of the recess 9. Should it be desired to raise the sash, the weight extension 6 is swung upward, so as to disengage the wall 10 from the hook 15, and after the sash has been hoisted a sufficient distance to move the two members apart the weight extension 6 can be released, and the cam extension 7 will then slide along the stop-strip B without, however, interfering w1th the raising of the window-sash. Should it be desired to hold the sash in raised position, it is merely neces- 1 and said stop-strip and cause the parts to assume the position shown in Fig. 2. The windew-sash will then be held firmly in raised position and can only be lowered by first pushing the sash upward a short distance and then swinging the wei ht extension 6 upward, so as to remove t e cam extension from engaging position.

The utmost importance is attached to the particular form and arrangement of the slot 3, because by providing a curved slot between the cam and wedge portions of the fastener the device is rendered doubly effective, because when the projection 1 travels downward within the slot it rides upon the lower curved wall thereof and tends to push the cam portion against the window-frame, thereby supplementing the clamping action of the cam. As a result of this arrangement it becomes unnecessary to employ felt, rubber, or other soft material upon the window-flame to act as a holding means, and it is also unnecessary to employ springs or other like desary to release it, whereupon the cam extension 7 will by reason of its frictional contact I with thestop-strip B wedge between the pivot vices upon the cam for throwing it into operative position.

It Will be seen that this fastener is very simply constructed, can be readily connected to a Window, and is very efficient both as a lock and as a sash-support.

It Will be noticed by referring to Fig. 3 that an enlargement 16 is formed upon the inner face of the member 5, so that the same is held away from the sash and Will not mar it by reason of contact therewith.

The preferred form of the invention has been set forth in the foregoing description: but I do not limit myself thereto, as I am aware that modifications may be made therein Without departing from the spirit or sacrificing the advantages thereof, and I there fore reserve the right to make such. changes as fairly fall Within the scope of the claims.

Having thus described my invention, What is claimed is- 1. A sash fastener and support comprising a plate, a hooked extension projecting therefrom, a pivot, a movable member having a curved slot therein constituting a seat for the pivot, oppositely-arranged Weight and cam portions integral with the movable member,

the W orlzing face of said cam portion and the Walls of the slide being formed along converging curves, the Working face of said cam having a recess therein adapted to receive and engage the hooked extension.

2. A sash-support comprising an intermediate portion having a curved slotv therein, a Weight portion extending from one end of said intermediate portion and a combined Wedge and cam portion extending from the opposite end thereof, the Working face of said cam portion being disposed eccentrieally in relation to the slot and adapted to bear upon a structure to support a sash in raised position.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of tWo Witnesses.

, his GEORGE WARNER ADAMSON.

mark Vvltnesses R. H. MOORE, J. H. LEEOH.

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