US774178A

US774178A - Sash-lock.

Info

Publication number: US774178A
Authority: US
Inventors: Henry B Hughes
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-05-11
Filing date: 1904-05-11
Publication date: 1904-11-08
Anticipated expiration: 1921-11-08

Description

PATENTED NOV. 8, 1904.

H. B. HUGHES.

SASH LOCK.

APPLIUATION FILED MAY 11, 1904.

N0 MODEL.

' fJnwuNo-a Hen y B. gy 19$ atfozmn l/vitneaam fiMW way UNITED STATES Patented November 8, 1904.

PATENT OFFICE.

SASH-LOCK.

SPECIFICATION formingpart of Letters Patent No. 774,178, dated November 8, 1904.

Application filed May 11, 1904.

To all whom it may concern:

Be it known that I, HENRY B. HUGHES, a citizen of the United States, residing at Wichita effective arrangement of parts, easily manipu- I lated and positive in action, the construction and advantages of which are described hereinafter, and clearly set out in the claims.

In the accompanying drawings, Figure 1 is a face view of my improved sash-lock applied to a car-window. Fig. 2 is a detached view of the sash-lock, enlarged, the front plate being removed. Fig. 3 is a perspective view of the operating-lever detached. Fig. 4 is a detail view of a portion of the locking-rack. Figs. 5 and 6 are cross-sectional views on the lines 5 5 and 6 6, respectively.

Similar letters of reference indicate the same parts on all the figures.

Referring to Fig. 1, A indicates a windowsash, in this case a car window-sash; B, the window-frame; 0, my improved lock screwed to the sash, and D a holding-rack affixed to the window-frame, which also forms a part of my invention. The sash-lock C has the usual box-like casing, having projecting

ears

0 and 0, through which fastening-screws pass into the sash-frame. l/Vithin the casing a cruciform lever E is pivoted at c to a lug c on the casing, near the bottom thereof and in close proximity to the side nearest the rack D. One arm, E, of the lever E projects latterally through an opening in the side 0 to engage the notches (Z (Z of the holding-rack D. A second arm, E projects in a substantially horizontal direction opposite that of the arm E through a slot in the side 0 of the casing and is there provided with a fingerpiece 0, by means of which the lever E is operated. A third arm, E rises vertically from the junction of the arms E and E to the top Serial No. 207,459. (No model.)

of the casing and carries a finger F, perforated at f. G indicates a curved guide-rod at the top of the casing C, concentric with the pivot e of the cruciform lever E and fastened at each end to the sides 0 0 of the casing or in lieu of the latter side to a bracket 0 The curved guide G passes through the openingf in the finger F, between which finger and the bracket 0 is placed a coiled spring H, surrounding said guide G, which tends to keep the arm E always projected and the arm E in elevated position.

The holding-rack D is preferably formed of three strips of metal cast or bent to form. The central strip D has notches (Z (Z formed on its forward edge and a flange (Z on its rear edge, through holes in which fastening-screws pass to attach the holding-rack to the windowframe. Rivetedto the central strip D are strips D D one on either side, the strips being flanged at their forward edge, as shown. The face of the casing G next the window-sash is extended beyond the side 0 for a short distance and then turned inwardly to form a narrow flange 0, between which and the side 0 a guideway is formed in which the flange on the strip D enters and slides as the sash is raised and lowered. The notches d on the strip D have flat upper edges joined by inclined front edges, forming shoulders 6Z3, on which the arm E rests to hold the window-sash in elevated position. The lowest notch cl is, however, of substantially rectangular form, which when the window is lowered and the arm E enters said notch locks the window closed.

To raise the window from a closed position, the finger-piece e is depressed to operate the cruciform lever E. This movement withdraws the arm E from the notch 62 and compresses the spring H. The window-sash can now be raised'to any'height desired and held open by the arm E engaging one of the shoulders (Z The window sash may be raised higher by simply lifting it, the lever E yielding, as readily understood; but to lower the sash the finger-piece must be depressed and so held until the window falls to the position desired. If dropped to the bottom, the arm E will enter the notch (Z and lock the window, as heretofore stated.

WVhile I have shown a curved guide surrounded by a spiral spring, th1s arrangement is not an essential feature, as a spring of other form and differently placed may be substituted for the spiral spring, While the finger F may be made sufliciently Wide to bear against the cover-plate of the casing.

Having thus described the invention, What is claimed as new is 1. In a sash-lock, the casing, combined with a pivoted cruciform lever therein, having a locking-arm and an operating-arm projecting through opposite sides of the casing, an upright arm having a finger, a guide, and an operating-spring.

2. In a sash-lock, a casing, a pivoted cruciform lever therein having locking and operating arms projecting through opposite sides of the casing, and having an arm provided HENRY B. HUGHES.

Witnesses:

C. G. HUFF, T. R. BOGER.