US970162A - Screen-frame. - Google Patents

Description

s. T. ASHBAUGH. I

SCREEN FRAME.

APPLICATION FILED mus, 1909.

Patented Sept. 13,1910.

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iii-L S. T. ASHBAUGH.

SCREEN FRAME.

APPLICATION FILED JULY 3, 1909. 970, 1 62. Patented Sept. 13, 1910.

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ITED STATES PATENT OFFICE.

SAMUEL T. ASHBAU'GH, 0F CANTON, OHIO, ASSIGNOR OF ONE-DIAL]? TO HOMER H. HILL,

0]? CANTON, OHIO.

SCREEN-FRAME.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed July 3, 1909. Serial No. 505,910.

To all whom 'it may concern.-

Be it known that I, SAMUEL T. ASHBAUGH, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Screen-Frames, of-which the following is a specification.

The invention relates to a sheet metal frame for Window screens and the like, and the general object of theimprovement is to make a simple and inexpensive frame in which the screen fabric can be readily inserted and replaced, and to provide integral slides on the frame when the same includes two members. vThe use of sheet metal for such a frame is obviously desirable, because of its great durability and strength, but the greater cost of themeta], as compared with wood, estops its use for such purpose unless the frame can be simply made with a minimum quantity of metal and an inconsiderable amount of work in cutting, sha ing, assembling and securing the parts 0 the frame. Furthermore, as sheet metal is practically impervious to tacks, staples and other ordinary fastening means, the frame itself cent si itself. Furthermore, the companion submust be ada ted to stretch and securely hold the screen ihbric in proper position, and for fully utilizing the greater durability of the frame it must likewise permit a ready renewal of the fabric. These general ob'ects are attained andthe desired purposes 0 the inventionaccomplished b with the edge portions of the screen fabric clamped between corresponding flanges; and

when the frame is made of two members, by forming interengaging slides on the adjaes by folding the sheet metal upon frames of each member are preferably held together by providing an mturned hinge ton e on the outer flange of one end under which' the end of the companion sub-frame is adapted to be engaged, and by providing means-on the other ends'of the sub-frames for securing or looking them when the subframesare clamped together. The accom anying drawings, formin part hereof, ilustrate a preferred embodimentof the invention, in which drawings- Figure 1 is a face elevation o the immaking each .frame of two companion su -frames of sheet proved frame, showing two sliding membets; Fig. 2., a longitudinal section on line 2-2, Fig. 1; Fig. 3, an enlarged transverse. section on line 3-3, Fig. 1, with the middle portion broken away; Pig. 4, a fragmentary section showing the screen fabric clamped between the outer and inner flanges of the sub-frames; Fig. 5, a face elevation of (me of the frame members; Fig. (i, an enlarged fragmentary section as on line 8-8, Fig. 5'), showing the engagement of the inner subframe under the hinge tongue of the outer sub-frame; Fig. 7, a similar sub-frame showing the free end of the inner sub-frame about to be entered into the channel of the outer sub-frame; Fi 8, a longitudinal section on line 88, Fig. 5, showing the companion sub-frames clamped and locked together; and Fig. 9, a fragmentary section showing the use of bolts for securing the subframes together.

Similar numerals refer to similar throughout the drawings.

Each single frame is composed of two parts sub-frames, 1, 2 or 2", made of sheet metal shaped as rectangular channels joined at the corners and having the flanges 3 and 4 of the respective subframes referably extended in reverse directions ant provided with plain sheared edges. The sub-frame, 2 or 2", herein referred to as the inner sub-frame, is adapted to be inserted in the channel between the flanges of the other sub-frame, herein referred to as the outer subframe, and in so doing the edge portions of the screen fabric 5 are stretched and clamped between the corresponding inner flanges of the respective sub-frames. In a large frame, it is sometimes desirable to clamp the edge portions of the fabric between the corresponding outer flanges as well as between the inner flanges of the two sub-frames, as illustrated in Fig. 4, but for ordinary uses it is sntiicient to depend u on the inner flanges alone to hold the abric. It is evident that the fabric is not only held by being clam ed between the sides of the corresponding anges, but also by being bent at right angles over the sharp edges thereof, and that these edges will bite into the fabric and hold it securely when the snb frames are clamped together.

To clamp the fabric between the subframes, the fabric is laid over the edges of the inner flanges of the outer sub-frame and one end of the inner sub-frame is engaged under the inturned tongue which'is prot ided on the outer flange of one end of the outer sub-frame, as shown in Fig. (i. The free end of the inner sub-frame is then rotated on the tongue as a hinge into the channel of the outer sub-frame, thus clamping the edge portions on all sides of the fabric between the sub-frames. One or more projectipns as (i are provided in the outer flange of the free end of one of thejub-frames, and the corresponding indentations as 7 are provided on the similar flange of the other sub-frame. and theparts are so arranged that when the sub-frames are closed together the protrusions will spring and catch into the projection, thus locking the sub-frames in their closed position, as shown in Fig. 8. It will be understood, however, that the scope of the invention is not limited to the use of such clamping and locking means, for it is evident that the free ends or both ends of the sub-frames can be secured together by means 6f bolts as 8, one of which is preferably located at each corner of either or both endsof the frame and it has been found in practice that by properly proportioning the respective sub-frames to firmly clamp the edge portions of the fabric, the parts will be held together with suflicient friction to withstand all the shocks and strains of ordinary use, Without employing any other clamping or locking means Whatever; but the hinge tongue and spring form of lock are preferred in ordinary cases because they are automatic in action and require no separate parts. Whenthe sub-frames are locked by means of indentations and protrusions, the apertures 9 are preferably provided in the adjacent web of the outer subframe through which a small tool or suitable bar can be inserted to impinge the inner subframe and force it away from the outer subframe, when it is desired to separate the parts of a; frame for inserting a new screen fabric, and it is evident that any number of screen fabrics can be clamped one after the other in the frame without destroying or affecting the frame section.

When it is desired to make a frame of two members adapted to slide upon each other, the interenga ' g tongues 10 and 10 are provided on th the inner sub-frames, which tongues are preferably formed by folding the sheet metal upon itself, as shown in sectionin Fig. 3, the tongue 10 being turned outward on the sub-frame 2 and the tongue 10 being turned inward on the sub-frame 2, thus making the slides integral with the sub-frames and rendering unnecessary any additional parts or fastenings to become loosened or lost by use.

e contiguous sides of ends of the It is evident that the frame sections thus illustrated and described can be economically cut and shaped, and that the overlapping corners of the ends and sides of the respective frames can be secured together by solder or by rivets, as may be preferred.

The frame thus described presents fiat tween corresponding flanges.v

2. A screen frame including two channel sub-frames each made of sheet metal joined at the corners and having rectangular flanges provided with lain sheared edges, the flanges of one subrame being inserted between the flanges of the other sub-frame and adapted toclamp the screen fabric between corresponding flanges, with means for securing the sub-frames together.

3. A screen frame composed of twoinembers each including sheet metal channel sub frames, there being interengaging tongues formed by folding the sheet metal upon itself on the contiguous sides of the respective sub-frames, upon which tongues the members are adapted to slide.

4. A screen frame including an outer channel sub frame having rectan lar flanges, and an inner rectangular sub-ggme inserted between the flanges of the outer sub-frame and adapted to clamp the screen fabric against the flanges, there being an inturned tongue on one outer end flange of the outer sub-frame adapted to enga e the corresponding end of the inner subrame, and means for securing the other endsof the sub-frames together.

5. A screen frame including an outer plain sheared edges,

and a spring catch for securing the other sub-frames together. SAMUEL T. ASHBAUGH. Witnesses:

RUTH A. MILLER,

l i- Y FREASE.

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