US291697A - Hexby cutting - Google Patents

Description

(No Model.)

H. CUTTING.

- SASH HOLDER. No. 291,697. Patentd Jan. 8, 1884.

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HEXBY CUTTING, OF BUFFALO, NEV YORK, ASSIGNOR OF ONE-HALF TO THOMAS J. DE LANEY, OF SAME PLACE.

SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 291,697, dated January 8, 1884.

Application iilcd October Q, 1883. (No model.)

To all whom it may concern.-

Beit known that I, HENRY CUTTING, of the city of Buffalo, in the county of Erie and State of N ew York, have invented a new and useful Improvement in Sash-Holders, of which the following is a speciiication.

This invention relates to an improvement in that class oi' sash-holders which consists, essentially, oi" a screw-bolt working in a threaded opening or screw-nut in the sash, and-provided with a bearing-piece adapted to be pressed against the window frame or casing by turning the screw-bolt, thereby locking the sash in position.

The object of my invention is to produce a sash-holder of this character in which the req-' uisite longitudinal movement of the clampingpiece is effected very rapidly and without making the screw-thread so steep that its holding-power will be impaired.

Hy invention consists, to these ends, of the improvement in the construction of the sashholder, which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure l represents a sectional elevation oi' my improved sash-holder. Fig. 2 is a cross-section in line .c x, Fig. l. Fig. 3 is an end view ofthe screwnut and bearing-piece. Fig. 4 is a longitudinal section of the bearing-piece. Fig. 5 is a similar view ofthe screw-nut. Fig. 6 is a sectional elevation, showing my improved sashholder applied to the window of a railwayear. Fig. 7 is an elevation of this sash-holder. Fig. S is a cross-section in line g/ y, Fig. 7.

Like letters ot' reference refer to like parts in the several figures.

A represents a portion of the window casing or frame, and B a portion ofthe side piece of the sash. C represents the screw-bolt of the sash-holder, and D the screw-nut secured in the sash. The screw-nut D is made cylindrical on its exterior surface and sea-ted in a cylindrical reeessformed in the edge ofthe sash, in which it is prevented from turning by longitudinal tapering ribs d, which are formed on the outer surface of the screw-nut, and embed themselves in the wood as the screw-nut is driven into the recess.

c represents the internal screw-thread formed in the inner or rear portion of the screw-nut.

j' represents a cylindrical cavity formed in the outer or front portion of the screw-nut.

G representsthe bearing-piece arranged in the cavity f, so as to slide therein toward or from the wi ndow-casing A, and provided with an internal screw-thread, h. The screw-bolt C is constructed with two threaded portions, i and j, which engage, respectively, in the internal screw-threads, e and 7i, of the screw-nut D and bearing-piece G. The screw-threads in the screw-nut D and bearing-piece G are arranged in opposite directions, the threads c and 'i being represented as left-hand threads and the threads h and j as right-hand threads. The bearing-piece G is guided in the recess f by a longitudinal rib, 7.', formed on the outside ofthe bearing-piece and projecting into alongitudinal groove, Z, formed in the inner wall of the recess, whereby the bearing-piece G is prevented from turning, but permitted to move lengthwise in the recess ofthe screw-nut. Upon turning the screw-bolt O in one or the other direction a quick axial movement is imparted to the bearing-piece G, proportionate to the pitch of the two screw-threads, and the bearing-piece is rapidly pressed against the window-frame to lock the sash, or removed therefrom to release the sash, as may be desired. The desired quick movement of the bearingpiece is attained without making the screwthreads so steep as to impair their holdingpower. Y

In the construction represented in Figs. 6, 7, and 8 the screw-nut D is secured to the surface ofthe sash by ilanges m and screws a, and the bearing-piece G is constructed in the form of a dovetail and guided in a dovetail recess in the screw-nut. The bearing-piece is provided at its outer end with a projection or stud, o, which is adapted to engage over projeetionsp, secured to the window-casino'. This construction is especially designed for useon the windows of railway-cars, which cannot be securely locked in position merely by the friction of the bearing-piece G against the side of the window-casing. The screwthreads are preferably made so steep that half a turn of the -are readily cast complete of iron or other suitable metal and put together Without requiring any fitting, and the device is therefore produced at comparatively small expense.

I claim as my invention- 1. In a sash-holder, the combination, with a screw-bolt having a right-hand and a left-hand screw-thread, of a fixed screw-nut receiving one of said screw-threads, and a movable bearing-piece Working on the other screw-thread, substantially as set forth.

2. The combination, with a screw-bolt, C, provided with a right-hand and a left-hand screw-thread, of a screw-nut, D, provided with a screw-thread, e, and a cavity, f, and a bearing-piece, G, provided with a screw-thread, h, and guided in the cavity f, substantially as set forth.

3. The combination, with a screw-bolt, C, having right and left hand screw-threads i and j, of a fixed nut, D, having a screw-thread, e, a recess, f, and a longitudinal groove, Z, and a bearing-piece, G, constructed with a screwthread, h, and rib 7c, and arranged in the recess f, substantially as set forth.

HENRY CUTTING. Vitnesses:

JNO. J'. BONNER. THoMAs J. Dn Lanny.

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