US378515A

US378515A - Hugh j

Info

Publication number: US378515A
Authority: US
Publication date: 1888-02-28
Anticipated expiration: 1905-02-28

Description

(No Model.)

H. J. MURPHY. FASTENER FOR MEETING RAILS 0P SASHES. No. 378,515. Patented Feb. 28, 1888.

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TO HENRY EDWVARDS, OF SAME PLACE.

FASTENER FOR EETING-RAELS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 978,515, dated February 28, 1888.

Application filed Scptcmber2l,1887. Serial No. 250,320. (No model.)

claimed.

In the accompanying drawings, Figure 1 is an isometric view of the lower part of the upper sash and the upper part of the lower sash of a window with my improved lock applied to the meeting-rails of the window; Fig. 2, a vertical transverse section of the meeting-rails and adjacent parts of a window, showing my improvement in side elevation, the window being locked in Figs. 1 and 2; Fig. 3, like Fig. 2, except that the window is represented as being opened, but not opened sufficiently to free the swinging bolt; Fig. 4:, a vertical section of parts of two mectingrails and my device, also in section, the dotted lines showing the position of the thumb-lever and swinging bolt when the window is about to be opened.

A A represent the upper and lower sashes of a window ofcommon construction, such as is opened by silding either or both of the sashes vertically. To the lower rail or meetipg-rail, a, of the upper sash is secured the lock case or stand B, the same consisting of a plate, 1), provided with two vertical standards, b b, between which standards swings on the pivot c the bolt 0, said pivot passing horizontally through said standards and being supported thereby. The back or outer side of the bolt 0 is recessed at 0, below the pivot c, to receive one end of aspiral spring, D, the other end of said spring surrounding and being held in place by a stud, b cast or otherwise secured to the inside of the vertical back 6 of the lockcase B, the spring D normally throwing the lower end of the bolt forward over the upper rail, a, of the lower sash when the window is closed, and preventing the window from being opened. To open the window, the lower end of the bolt must be pushed back out of the way and the lower sash raised or the upper sash lowered until the lower end of the bolt is below the top of the lower sash. When the window is being closed, the bolt is swung back by contact with the meeting-rail a of the lower sash, and springs forward over said meeting rail a as soon as the window is closed,without requiring any manipulation of the lockthat is, closing the window automatically looks it.

To lessen the wear of the upper rail of the lower sash, said rail is protected by a strike or plate, E, secured by screws 0 e to the top of said rail, the rear upper edge of the strike being beveled at c to fit the bottom of the bolt 0. The rear of the strike projects over the meeting-rail of the upper 'sash, and is grooved on its under surface at e", and the upper sun face of the front part of the plate b is also correspondingly grooved at If, so that the strike and the plate b hook into each other and render it impossible to thrust a knife or thin sheet of metal between the strike and the plate b from the outside or back of the window. The parts of the grooves c b which come in contact with each otherthat is, the front side of the groove 7 5 b and the back side of the groove 6 2 ll6 outwardly inclined to draw the sashes together and prevent the air and dust from entering the room between the upper and lower sashes. On another horizontal pivot, f, supported in the same manner as and parallel with the pivot 0, turns a thumb-lever, F,which normally occupies the position shown by the full lines in Fig. 4, its free end or handle f being raised and a stop, f,whichin the drawings is merely 8 5 a flat surface, resting upon the top of the back b of the lockcase and limiting the motion of said lever. Against the front side, f of the lever F, above the pivot f, normally rests the backwardly-projecting upper end, 0*, of the bolt 0, the lever thus acting as a stop to limit the forward motion of the lower end of said bolt.

0bviously,when the upper end of the lever F is bent forward down into the position shown in Fig. 3 and by dotted lines in Fig. 4, the upper end of the bolt 0 will be thrown forward, and the lower end of the bolt will be drawn backward in such a manner as to clear the rear edge of the strike E in raising the 00 window, and in this position the bolt may be held by the catch-surface f of the lever F,

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said catchsurface being arranged between the top of the front side, f, and the handle f being pressed down below the upper end or pro- Hence,when it is desired to open the window, it is only necessary to depress the upper end of the lever F into the position shown in Fig. 3, and the window may be opened by moving either sash in the usual manner; but the act of opening the window brings the strike and the upper end of the lever into contact and lifts the lever back to its normal position, releasing the bolt, the lower end of which springs forward to be in readiness again to lock the window.

The lock above described may be applied to a swinging window or door, in which case, if the door opens inward, the lock-case and its contained parts would be applied to the jamb and the strike would be secured to the lockstile of the door. If the door opens outward, the position of the lock-case and strike would be reversed. The device above described pre vents the rattling of the sashes by drawing them together, as above stated, and allows both hands to be used in raising heavy windows, (the windows being first unlocked, as

above described,) and makes it positively certain that a closed window is locked.

I claim as my invention- The combination of the case, the lever piv- 3o oted therein and provided with a handle, the bolt pivoted in said case in front of said lever, the spring pressing the lower end. of said bolt forward -and. normally causing it to project out of said case, and holding the upper end of said bolt against the front side of said lever above the pivot of said lever, said lever being provided with a catch-surface arranged at the top of said front side and between said front side and said handle, and adapted, when said handle is drawn forward, to engage the upper end of said bolt and to prevent the forward movement of the lower end of said bolt, as and for the purpose specified.

In witness whereof I have signed this speci- 5 fication, this 19th day of September, A..D. 1887, before two subscribing witnesses.

HUGH J. MURPHY.

Witnesses:

ALBERT M. MOORE, GERTRUDE M. DAY.