US178103A - Improvement in ventilators for windows - Google Patents

Description

UNITED .STATEs PATENT OEEIcE. i

THOMAS w. BRAOHER, OF NEW YORK, N. Y;

IMPROVEMENT IN VENTlLATORSFOR WINDO WS.

Specification forming part of Letters Patent No. 1 78,103, dated May 30, 1876; application filed April 27, 1876. V

To all whom it may concern:

Be it known that I, THOMAS W. BRAGHER,

of the city, county, and State of New York,

have invented a newand useful Improvement in Ventilators for Windows, which improve ment is fully set forth in the following specification, reference being had to the accompanying drawing, in which Figure 1 represents a face view of my ventilator. Fig. 2 is a transverse section of the same. Fig.3 is a modification of the same;

Similar letters indicate corresponding parts.

This invention consists in a frame containing a layer of textile material and a layer of wire-gauze, so that by said frame the textile material and the wire-gauze are firmly confined in their position, thereby preventing the textile material from shrinking, while at the same-time the wire-gauze forms a support for the textile material, whereby the latter can be readily cleaned from dust or other impurities adhering to the same, and a "ventilator for windows .is obtained which admits the entrance of pure air, while dust or other impurities are effectually excluded It is a common practice to usefor ventilating purposes, particularly in railroad-cars, frames in which a sheet of wire-gauze is secured, and

' which fit the window-frames when the sashes firmly secured a sheet, a, of I textile material, and also a sheet, I), of wire-gauze or perforated sheetmetal, so that both sheets are retained securely in the desired position. The sheet 12 of wire-gauze serves to support the textile material, while the frame prevents the latter from shrinking by the action of moisture.

If my ventilator is fitted to a window, the textile material prevents the entrance of dust or other impurities, while the pure air can freely pass through the meshes of the two sheets, and if the textile material has become choked by dust or other impurities, it can be readily cleaned by beating or shaking without incurring the danger that the same will become displaced.

When my ventilator is made corrugated, as shown in Fig. '3, I secure the textile material to the wire-gauze by stitches at the corners, so

as to secure the same still-more firmly in its position,

I am aware that loose cotton fiber has been employed between perforated. plates in the ctlmstruction of ventilators, and this I do not c aim.

Whatl claim as new, and desire to secure by Letters Patent, is-

A ventilator for windows, composed of a frame, A, containing a sheet, a, of textile material, and a supporting-sheet, b, of wire-gauze or perforated sheet metal, substantially as shown and described.

In testimony that I claim foregoing I have hereunto set my hand and seal this 21st day of April, 1876.

THOMAS W. BRAOHER. [L.

Witnesses:

A. H. NoNEs, H. BEiiGGEMANN.

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