US1948262A - Window screen - Google Patents

Description

G. O. GABRIEL Feb. 20. 1934.

WINDOW SCREEN Filed Nov. 29, 1932 2 Sheets-Sheet l ATTORNEY Feb. 20, 1934. O GABRlEL 1,948,262

WINDOW S GREEN Filed Nov. 29. 1952 v Sheets-Sheet 2 Y %wa@w ATTORNEY Patented Feb. 20, 1934 WINDOW SCREEN Gustave 0. Gabriel, Newark, N. J.

Application November 29, 1932 Serial No. 644,762

Claims.

This invention relates to improvements in window screens, and particularly to means which enable window screens to be readily assembled and installed, and conveniently adjusted to posi- 5 tions to cover a part of or the entire window, as

may be desired.

Heretofore, window screens of the type herein described, have been wound upon the well known shade roller which relies upon springs for its actions, and as a result, the unwinding and Winding of such window screens has been'often very unsatisfactory as the spring rollers do not always function properly, causing the screen to be loose and bulge, leaving many openings through which insects and the like may pass.

Also, it has been usually necessary to especially construct the window screen for each window, which is objectionable in that it increases the cost of the window screen.

Itis, therefore, an object of this invention to provide a window screen which may be positively and accurately adjusted to cover any part of or the entire window, without resort to the use of the spring rollers of the window shade type.

A further objectis the provision of a window screen which has means to cause it to be held taut and flat at all times to prevent looseness and bulges.

A further object is the provision of a novel frame structure for a window screen which canv be economically manufactured and conveniently assembled.

A further object is the provision of means for frictionally maintaining a window screen in adjusted positions.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and arrangement of parts hereinafter described andexhibited in the accompanying drawings, forming part hereof, and in which:

Fig. 1 is a front elevational view of my device,

Fig. 2 is a rear elevational view of my device,

Fig. 3 is a perspective view of details of the device,

Fig. 4 is a sectional View of a corner of the device showing the manner of supporting a screen therein,

Fig. 5 is a fragmentary View of frame used in my device,

Fig. 6 is a sectional view taken on line 66 of Fig. 1,

Figs. 7 and 8 show details of a chain used in my device,

56 part of the Fig. 9 is a perspective view showing in detail the shape of elements used in Fig. 10 is a perspective view the frame,

of a bearing for rotatably supporting a shaft about which the screen is wound,

Fig. 11 is an exploded perspe entire device,

ctive view of the Fig. 12 is a fragmentary perspective view of an element of the frame used in Fig. 13 shows a modified manner of a screen resiliently to the chains.

the device, and

Referring to the drawings, my device is shown to include a frame having side members 13, 14,

length of the side member.

The angle 19 has also a slot 21 with transverse portions 22 at each end thereof for a purpose hereinafter de- 80 scribed.

The top member 15 has a st raight back wall 23 and a curved front wall 24, the frontiwallbeing bent up and at right angles to the back wall at each end of the member to provide lips 25 which are welded to the sidepieces 13, 14.

In the upper ends of the side member 13 and 14 are positioned bearings 26, to the side members preferably which are fixed by spot welding.

The bearings (see Fig. 10) have one face provided with a slot 27 opening into a circular aperture 28, and have the opposite face provided with a hole 29 (see Fig. 4) which receives the end of a shaft 30.

Fixed to the shaft 30, near the ends thereof, are sprocket wheels 31 engaging endless chains 32, which also pass over sproc kets 33 on stub shafts 34, mounted in bearings 35 in the lower ends of the side members, the bearings 35 being of substantially the same construction as bearings 26.

bearings.

Attached to the lower edge of the screen is a metal strip 37, which is also attached to the chains 32, so that movem will cause the screen to move.

ent of the chains attaching Fixed to one chain 32 adjacent the shaft 36 is a U-shaped member 38 formed from flat resilient material. A similar member 39 is attached to the other chain near the lower edge of the screen (see Fig. 3).

The members 38 and 39 pass through the slots 21 in the side members, and frictionally engage the side members.

In operation, to lower the screen, members 38 and 39 are squeezed to break their frictional engagement with the side members 13 and 14 and then member 38 is moved downward and member 39 moved upward in the slots 21. Should the members 38 and 39 be released at any time, the screen will remain in the position to which it has been moved, as the members38, 39 will frictionally engage the side members.

Interposed as a link in each chain is a coiled tension spring 40, which maintains the chain taut at all times, which in turn holds the screen tight and fiat so that there will be no bulges "or openings through which insects and the like can pass.

In Fig. 13 is shown a modified form in which one end of a coiled spring 41 is attached to.

the chain and forms a link thereof, while the other end of the spring is attached tothe strip 37, which is fixed to the chains.

When it is desired to completely cover the window with the screen, the U-shaped members 1 38 and 39 are moved to positions in the transverse slots 22, where they spread and are prevented from' accidental movement, thus insuring the position of the screen.

It will be seen that my screen is positively controlled by the movements of the chains and does not rely upon spring rollers as is the case with the usual window shade. The device can be readily and conveniently installed in any window, and obviously can be easily assembled. The

, side members 13 and 14 preferably are of a m 1'. In a window screen device, a frame having a pair of vertical tubular side members with longitudinal slots therein, a bottom member and a top member attached to the side members, a shaft rotatably supported by the upper ends of the side members, stub shafts rotatably supported by the lower ends of the side members, sprockets fixed to said shaft and stub shafts, endless chains passing over the sprockets,-a window screen having one edge attached to said shaft, and a strip attached to the other end of the screen, said strip being fixed to said chains.

2. In a window screen device, a frame having a pair of vertical tubular side members with longitudinal slots therein, a bottom member and a top' member attached to the side members, a shaft rotatably supported by the upper ends of the side member, stub shafts rotatably supported by the lower ends of the side members, sprockets fixed to said shaft, and stub shafts, endless chains passing over the sprockets, a window screen having one edge attached to said shaft, and a strip attached to the other end of the screen, said strip, being fixed to said chains, each of said chains having a coiled tension spring interposed therein and serving as a link. 7 3. In a window screen device, a frame having a pair of tubular side members, bearings attached to the upper and lower ends of the side members, a shaft rotatably supported by the upper bearings, stub shafts rotatably supported by the lower bear ings, sprockets carried by said shaft and stub shafts, endless chains positioned within the tu-. bular side members and engaging the sprockets, a screen having its upper edge attached to the shaft, and means for connecting the lower edge of the screen to the chains. v

4. In a window screen device, a pair of tubue lar side members, each of said members having a pair of slots extending the length thereof, an upper shaft rotatably supported by the upper ends of the side members, stub shafts supported by the lower ends of said members, sprockets fixed to the shafts, endless chains within said members and engaging said sprockets, a window screen having one end attached to saidupper shaft, means for attaching the other end of the screen to the chains, said screen passing through one of the slots in each of the side members, and resilient U-shaped members attached to the chains and passing through the other slots in the side mem-- bers, said U-shaped members frictionally engaging the'side members to maintain the screen in adjusted positions.

5. In a window screen device, a pair of tubular side members, each of said members having a pair of slots extending the length thereof, an upper screen having one end attached to the shaft, and

the other end attached to said chains, said screen passing through one of the slots in each of the side members, and resilient means attached to the chains and passing through the other slots in the side members, said resilient means frictionally engaging the side members to maintain the screen, in adjusted positions.

GUSTAVE O. GABRIEL.

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