US807276A - Screen and guard for windows. - Google Patents

Description

PATBNTED DEC. 12, 1905.

A. JOHNSTON. SCREEN AND GUARD FOR. WINDOWS.

2 SHEETS-SHEET 1.

APPLICATION FILED JUNE 9.1905.

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No. 807,276; PATENTBD DEC. 12, 1905.

A. JOHNSTON. SCREEN AND GUARD FOR WINDOWS.

APPLICATION FILED JUNE 9. 1905.

2 sums-SHEET 2.

mzwtoz UNITED STATES PATENT OFFICE.

ABNER JOHNSTON, OF LONG ISLAND CITY, NEW YORK, ASSIGNOR OF TWO-THIRDS TO WILLIAM HARVEY AND ONE-THIRD TO HAROLD J. MURTHA, OF NEW YORK, 'N. Y.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed June 9, 1905. Serial No 264,416.

1'0 alt whom it may concern.-

Be it known that I, ABNER JOHNSTON, a citizen of the United States, residing at Long Island City, in the county of Queens and State of New York, have invented certain new and useful Improvements in Screens and Guards for Windows; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters of reference marked thereon.

The resent invention has reference to that class 0 screens and guards for windows in which lazy-tongs connect with transverse cross and guide bars engaging grooved guides upon the sides of the window-frame, so that when the lower sash is raised the lazy-tongs will be extended and in connection with the cross and guide bars will provide a protecting-screen to the open portion of the window to prevent papers or documents blowing out therethrough when left open and also as a protection against children falling out of the window when left open.

The present invention is designed as an improvement upon my former patent dated August 2, 1904, Serial, No. 766,262, in which the above features are embodied therein; and it consists in a screen and guard for windows constructed substantially as shown in the drawings and hereinafter described and claimed.

Figure 1 of the drawings is a front elevation of a window, showing my improved screen and guard connected thereto, the same being shown as open in full lines and closed in dotted lines when the sash is down.

Fig. 2 is a detail view in perspective, showing two arms of the lazy-tongs and the extensible cross-bar to which said arms are pivoted; Fig. 3, a detail perspective view of a portion of the grooved guide with which the ends of the cross and guide bars engage; Fig. 4, a plan shown as in a raised position, the lower horizontal rail of the sash having connected there to in any suitable manner a rail or cleat C, which may be of any preferred construction and provided with a knob a for convenience in raising or lowering the sash.

To the sides of the window-frame A are upright guides D, which guides are of special construction and consist in brackets 12, from which project U -shape extensions 0, the brackets enabling the guides to be conven iently attached to the sides of the windowframe by suitable fastenings and the U-shape extensions providing means for engaging the hooked ends (1 of slidable arms E, as shown in Fig. 4 of the drawings. The arms E are slidablyv mounted upon the ends of the stationary bars F, thereby enabling the arms to be extended or contracted to adapt the arms to the difference in the width of the windowframe. The stationary bar and the slidable arms upon the ends thereof I shall term when together an extensible bar, and to the sta tionary bar are suitably pivoted the crossarms G H of the lazy-tongs, the ends of the arms being' suitably pivoted to the arms above and below the same, as shown in Fig.

1 of the drawings, forming together the lazytongs, as shown.

The bars F and the arms G of the lazy-tongs are preferably grooved, channeled, or corrugated to obtain the maximum of strength with the minimum of lightness, and the bars near their ends have longitudinal grooves e to receive longitudinal ribs f in the slidable arms E, so as to form guides for the arms when moved upon the bars. The slidable arms E have overlapping flanges g, which embrace the edges of the bars, as shown in Figs. 2 and 5 of the drawings, therebyforming, together with the longitudinal groove in the bar and the longitudinal ribs in the arms, a perfect and rigid means for holding together the bar and arms and guiding them in their sliding movement to adapt the bar and arms to the difference in the width of windowframe.

The two cross-arms at the upper end of the lazy-tongs are pivoted to the rail or cleat O, and the lower ones of said arms are pivoted to bracketsh upon the sill I of the windowframe or may be pivoted in any manner found most preferable, as may also the upper end of the lazy-tongs.

I have shown only one of the slidable arms upon each of the bars; but it is evident that either end may be provided with such arms as found desirable, and the several parts of the attachment may be made of either wood or metal, or of both, and either corrugated or plain, as found desirable, and such modification and changes as would come within mechanical judgment may be resorted to in constructing the several parts of the attachment without departing from the essential features of the invention.

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

l. A screen and guard for windows, comprising a plurality of lazy-tongs connecting with the sash and sill of the window-frame, a plurality of horizontal guide bars having hooked ends to which said lazy-tongs are pivoted, and upright guides upon the windowframe having U-shape extensions With which the hooked ends of the guide-bars engage, substantially as and for the purpose set forth.

2. A screen and guard for windows, comprising a plurality of lazy-tongs pivotally connecting with the window sash and sill of the frame thereof, a plurality of horizontal guidebars having extensible ends, and upright guides upon the window-frame with which the guide-bars engage, substantially as and for the purpose speclfied.

3. A screen and' guard for windows, comprising a plurality of lazy-tongs connecting with the sash and with the window-frame, a plurality of horizontal guide-bars having horizontal guide-grooves at their ends, and arms slidable thereon having longitudinal ribs to engage the grooves in the bars and overlapping flanges to engage the same, and upright guides upon the window-frame with which the ends of the extensible bars engage, substantially as and for the urpose described.

In testimony whereof faflix my signature in presence of two witnesses.

ABNER JOHNSTON.

Witnesses:

HENRY B. PEIFFER, JOHN D. MOEWEN.

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