US934570A

US934570A - Screen.

Info

Publication number: US934570A
Application number: US32283406A
Authority: US
Inventors: Caroline A Ranney
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-06-22
Filing date: 1906-06-22
Publication date: 1909-09-21
Anticipated expiration: 1926-09-21

Description

G. A. RANNEY.

SCREEN. v APPLICATION FILED JUNE 22, 1906.

Patented Sept. 21, 1909..

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CAROLINE A. RANNEY, 0F WINN, MAINE.

SCREEN.

Specification of Letters Patent. Patented Sept. 21, llgfilllfl).

Application filed June 22, 1906. Serial No. 322,834. 4

T 0 all whom it may concern:

- Be it known that I, CAROLINE A. RANNEY, of Winn, in the county of Penobscot and State of Maine, have invented certain new and useful Improvements in Screens, of which the following is a specification.

My invention consists in the novel 'fea. tures hereinafter described, reference being bad to the accompanying drawings, which illustrate my invention, said invention being fully disclosed in the subjoined description and particularly. pointed out in the following claims.

Referring to the said drawing Figure 1, is a complete screen showing the inside view; Fig. 2, showing the reverse side; Fig. 3, is a sectional view showing the screen fabric in position in the frame before fastening; d, is a sectionalview on l4c of Fig. l.

Tn the manufacture of metallic screens several dificulties have been encountered in placing them upon the market, among which may be enumerated that of providing a construction of suflicient lightness, strength and durability, at a minimum cost, and that of securely and permanently attaching the wire fabric to the sustaining frame and making a frame that shall bestable enough to hold its original shape.

The object of my invention is to overcome all these difficulties and to produce a screen of cheapness, durability and simplicity.

Referring to the drawing A is the screen fabric of usual construction, such as woven wire; 18,15 are the end bars, and C, Care the side bars.

lln constructing the screen T take a piece of the screen fabric A, cut to the required size and rectangular in shape, and to two opposite edgesl attach the end bars B. Each of these bars is formed of a strip or plate of sheet metal of suitable length and width, which plate is bent or folded longitudinally substantially midway between its longitudinal edges, and the opposite side portions of the fold are pressed into engagement with the screen fabric adjacent an edge thereof, as shown in Fig. 3. The length of the plate is shorter than the edge of the fabric to which it is to be applied, by an amount equal to twice the width of the marginal flange to be formed. The folded plate is a ain folded longitudinally back upon itsel see Fig. 4, to form a marginal flange D, thereby permanently and firmly uniting the screen fabric and the bar and I bars rigi at the same time giving rigidity to the frame; Each of the end bars is connected with the screen fabric 1%. as described, and

bi clip back such portion of the folded fabric which protrudes beyond the ends of the mar gmal flange.

The plates which are to form the side bars U are cut of a length to exactly fit between the marginal flanges D of the end bars, and each side bar is folded longitudinally in the manner heretofore described, and pressed.

into engagement withthe fabric A, the folded plate being again folded back upon itself to form the marginal fiangeD, as

before. The oint between each side and end bar is made by inserting the end of the end bar between the opposite side portions of the side bar, as shown in Figs. 1 and 2, the extremity of the end bar extending outward to substantially the second bend which. is made to form the marginal flange of the side bar. Screw bolts F, Fig. 1, through the overlapping portions of the side and end 'dly connect such bars and complete the screen.

1ft will be obvious that the strength and tension of the screen as a whole is due in part to the construction of the corners thereof, efiected by the interlocking of the bars at the corners, as set forth.

By the construction described the outer edge or marginal flange portion of the frame is of the same thickness throughout, so that when the screen is placed upon a smooth surface and fastened by any suitable means there will be no crevice through which insects can pass.

Various changes or modifications in detail of construction and arrangement may be made by those skilled in the art without departing from the spirit and scope of my invention as set forth in the annexed claims.

Having fully described my invention, what 11 claim as new and desire to secure by Letters Patent is 1.. The combination, with a flexible screen fabric, of a frame comprising side and end bars each composed of a late folded longitudinally substantially midway between the longitudinal edges thereof and the opposite side portions of the fold pressed into engagement with the screen fabric adjacent an edge of the same, and each folded plate bein again folded longitudinally back on itselr to form a marginal flange, the joint between each side and end bar being made t by inserting-the end of the end bar between the opposite side portions of the side bar, such side bar extending only to the inner edge of the flange of the end bar.

2. Thecombination, with a flexible screen fabric; of a frame comprising side and end bars each composed of a plate folded longitudinally substantially midway between the longitudinal edges thereof and the opposite side portions of the fold pressed into engagement with the screen fabric adjacent an edge of the same, and each folded plate being again folded longitudinally back on itself to form a marginal flange, the joint between each side and end bar being made by inserting the end of the end bar between the opposite side portions of the side bar, and

the said end bar extending to substantially the bend of the marginal flange on the side bar, the ends of each side bar fitting between the marginal flanges of the two end bars, and a fastening member passing through the overlapping portions of a side and end bar at each corner, the marginal flanges on all of the bars being located on the same side thereof, substantially as and for the purpose set forth.

In testimony whereof I have aflixed my signature, in presence of two witnesses.

CAROLINE A. RANNEY.