US324819A - Sash-balance - Google Patents

Description

(No Model.)

- L; M. DEVORE.

SASH BALANCE.

No. 324,819. Patented Aug. 25, 1885.

INVENTOR WITNESSES ATTORNEYS.

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TIES a LEVI M. DEVORE, OF FREEPORT, ILLINOIS.

SASH' -BALANCE.

SPECIFICATION forming part of Letters Patent No. 324,819, dated August 25, 1885. Application filed. March 5, 1885. (No model.)

To all whom it may concern:

Be it known that I, LEVI M. DEVORE, a resi dent of Freeport, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in \Vindow- Weight Hangings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention is an improvement in the hanging of window-weights, its object being to provide a means whereby sash may be counterbalanced without the necessity of forming pockets or weight-spaces outside the jambs of the window-frame in which the sash are hung. The invention is described and explained in the following specification, and shown in the accompanying drawings, in whieh Figure l isa front elevation of a window provided with the hollow stops which constitute a part of my invention; Fig. 2, a vertical section of said window, looking in the direction indicated by the arrow a, Fig. 1, the plane of section passing through the line 3 Fig. 1; Fig. 3, a horizontal section of the parts shown in Fig. 2, the plane of section passing through the line 00 y, Fig. 2; Fig. 4:, a vertical section of the window shown in Fig. 1, looking. in the direction opposite to that indicated by the arrow ain. said Fig. 1, the plane of section bein the same as in Fi 2- Fi 5 afront g a a 7 manner of attaching elevation of one of the upper corners of the upper sash, B, shown in Fig. 1, showing the the weight-cord thereto; Fig. 6, a front elevation of one of the upper corners of a frame and upper sash provided with a hollow stop somewhat different in form from that shown in the preceding figures; Fig. 7, a front elevation of same parts shown in Fig. 6, the sash being partly lowered, 110wever, to show construction, and the hollow stop broken away to show position of pulley; Fig. 8, a top plan and a side elevation, looking in the direction indicated by the arrow a, Fig. 7, of the hollow stop shown in Figs. 6, 7; Fig. 9, a top plan of same with sash connected therewith, and a separate top plan showing construction of sash; Fig. 10, a top plan of the hollow stop 0, shown in connection with other parts in Figs. 1, 2, 3.

In Figs. 1, 2, 3, 4, 5, A is a window-frame of ordinary construction. Bis the upper sash, set

in said frame, and B the lower sash, forming,

with the upper sash, acomplete window. An ordinary parting-strip, J, is set ineach of the side jambs of the frame, and separates the two sash as they slide upward or downward from their respective positions. On each of the side jambs is fastened a hollow stop of any suitable material, reaching prefera 1y from top to bottom of the jamb, and having any desired form in cross section. This stop, which is intended to serve as a box to receive and conceal a sash-balancing weight, should have as thin a shell as is consistent with necessary strength, and I prefer, therefore, to make it of sheet metal; and in Fig. 10 I have shown a form of cross-section of the stop which answers the purpose perfectly, at the same time that it is easily made and inexpensive. As shown in said Fig. 10, O is the rectangular box or stop, having one side parallel to the jamb A and the other parallel to the sash B. c is a flange formed integrally with the stop and fastened to the jamb, and c is a narrow flange turned inward at the opposite edge of the stop and impinging upon the face of the sash.

The lower sash, B, is counterbalanced by means of a single weight, G, Fig. 2, suspended and moving freely up and down in the hollow stop 0. This weight, as well as the weight which balances the upper sash, B, may be of any desired form and material, though I prefer to make it of lead or other dense metal, and to give it substantially the same form of crosssection as the interior of the stop in which it moves.

A simill-(pre'ferably grooved) pulley, H, is fastened to the jainb, and is preferably of a diameter equal to about hall the width of the stop, as this diameter brings the inner edge of the pulley at the center of the stop. while the outer edge of the pulley is in the plane of the flange 0 at the margin of the stop. A cord, I, one end of which is fastened to the weight G, passes over the pulley H, and thence downward to the sash, to which it is fastened, as shown in Fig. 5, the cord lying in a groove in the face of the sash. By means of this construction the lift of the cord is practically verpossible at the center of the stop while the other fold drops vertically from the pulley H to its point of attachment to the sash. The proportions and arrangement of the pulleys H H H are by no means invariable; but I have shown what I think the most satisfactory, both as to simplicity and ease of operation.

factory, and I prefer it to the other.

The method of eounterbalancing each sash by a single weight may be applied to windows having the ordinary pocket-frames, and I do not therefore limit my invention thereof to its use, in combination with the hollow stops shown and described.

Figs. 6, 7, 8, 9 show a modified form of my invention, the hollow stop being fastened to the jamb in the plane of the sash which it engages, and between said sash and the jamb, and the sash and stop being connected by some means adapted to hold the sash in line.

In these figures E is the jamb, N the hollow stop, B the stile of the sash and B a flanged plate fastened to the stile and embracing the hollow stop. This is as convenient a form of connection as any I have devised; but the mere form is immaterial, since the stop and sash may be provided with any sort of interlocking devices adapted to hold the sash in line with the stop. The sash is supported or balanced by. a weight, 0, suspended by a cord, I, which passes over a pulley, H, fastened to the side or head jamb. Since each sash has two stops, one on each jamb, I consider it best to use two weights for each sash, each weight being applied in substantially the form shown in Fig. 7.

Having now described and explained my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a window-frame and a sash hung therein, of a hollow stop attached to said frame, a suitable pulley, attached to the frame, a weight-cord attached to the sash and passing over said pulley, and a wgight within said stop and attached to said cor 2. The combination of the frame A, the sash B B, the hollow stops 0 0, formed substantially as shown and described, the weights G Gylying within said stops, respectively, the pulleys H H H, and the cords I I, substantially as shown and described, and for the purpose set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

LEVI M. DEVORE.

Witnesses:

M. STOSKOPF, Prr. FREIDAY.

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