US1213029A - Screen-wire fastener. - Google Patents

Description

W. W. SCHMIDT.

SCREEN WIRE FASTENER.

APPLICATION FILED FEB. a. 1916.

1 $1 3.,Q9. Patented Jan. 16, 1917.

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WALTER V]. SCHMIDT, OF FOND DU LAC, WISCONSIN.

SCREEN-WIRE FASTENER.

Application filed. February 8, 1916.

To all whom it may concern 3e it known that I, WALTER W. SCHMIDT, a citizen of the United States, residing at Fond du Lac, in the county of Fond du Lac and State of Wisconsin, have invented new and useful Improvements in Screen-Wire Fasteners, of which the following is a specification.

This invention comprehends an improved I method of securing screen wire or the like to wood frames, and embodies among other features a continuous metal strip from which is stamped a plurality of tangs adapted to be driven through the mesh of the wire into the frame.

I am aware of the existence of metal strips as fastening elements provided with tangs of triangular formation, but owing to the taper these tangs have a shearing action on the wire strands, with the result of partly or entirely cutting them. The taper of these tangs also tends to cut the grain of the wood and does not hold firmly.

It is my object to overcome these objections by stamping from the metal strip, relatively narrow pointed tangs of uniform width throughout the major portion of their length, so that they can be driven through the mesh of the fabric into the wood without in any way injuring the wire strand, and having ample length to obtain an effective purchase upon the frame. In carrying out my invention I round the opposite longitudinal edges of the strip, whereby the latter can be fitted within a groove in the frame, thus pressing the marginal edge of the wire fabric into said groove beneath the strip, thereby effectively securing each strand of wire without cutting or injuring the same. I further propose to stamp the tangs from one edge of the strip, rather than from the center thereof, as heretofore arranged in other strips, which permits of the use of comparatively narrow strips for the purpose intended, with the saving of metal, as well as permitting of the use of a molding of usual dimensions.

With the above and other objects in view, which will appear as the nature of the invention is better understood from the following description considered in connection with the accompanying drawings, the invention resides in the specific construction and arrangement of parts set forth in the claims.

lln the drawing forming part of this speci- Speeification of Letters Patent.

Patented Jan. 16, 1917.

Serial No. 77,061.

fication, like numerals of reference indicate similar parts in the several views and wherein Figure 1 is a fragmentary plan view of a wooden frame showing the manner of securing the fabric thereto. Fig. 2 is a plan view of the metal strip before forming the tang. Fig. 3 is an edge elevation of the strip showing the relation of the tangs thereto. Fig. 1 is an enlarged sectional View through the frame showing the relation be-' secured. The strip is stamped along one of its longitudinal edges at spaced intervals to provide a plurality of securing tangs 13, the latter being separated or cut from the strip on a bias as at 14:, with a view of providing each tang with a pointed terminal 15. The tangs are relatively narrow, and of uniform width throughout their entire length, that is to say from their point of connection with the strip 12 to the pointed terminal thereof, thereby allowing these tangs to be driven through the mesh of the fabric 11 into the frame 10, without cutting or otherwise injuring the Wire strands, which is commonly the result with the use of metal strips provided with securing tangs of angular formation. These latter mentioned tangs also have a tendency to cut the grain of the wood and do not hold firmly, while the relatively narrow straight tangs 13 provided by me overcome this objection, and have ample length to obtain an effective purchase upon the frame.

In practice the marginal edge of the fabric 11 is extended an appreciable distance across one face of the frame 10 and overlies a groove 16 formed in said frame, subsequent to which, the metal strip is disposed above said groove and the tangs 13 driven through the mesh of the fabric through the groove 16 into the frame as clearly shown in Fig. 4. The metal span from tang to tang or in other words the entire metal strip 12 is also driven into the groove 16, thereby pressing the fabric 11 into the groove beneath the strip, by which arrangement each and every strand of wire is effectively secured to the frame. It will now be noted that the strip 12 has its opposite longitudinaledges rounded as at 17, so that when the strip is driven Within the groove 16, lying flush with the adjacent face of the frame, the fabric will as above stated be effectively crimped within the groove, but will not be cut or otherwise injured by the edges of the strip 12. The end 18 of the fabric of course is disposed upon the face of the frame as shown in Fig. 4, and after the strip 12 has been operatively associated with the frame, both the strip and the end 18 of the fabric are covered by the molding 19. Manifestly by reason of the'fact that the tangs 13 are stamped from the strip 12 along one'of the longitudinal edges thereof, rather than from the center of the strip, a Very narrow strip may be employed for the pur- 'pose intended, with a saving of metal, as

well as permitting of the use of a relatively narrow molding strip 19, which will entirely cover the metal strip as hereinabove stated.

What is claimed is 1. Means for securing screen wire to a frame including a continuous metallic strip Copies of this patent may be obtained for stamped to provide a plurality of securing tangs of uniform width throughout their length, said tangs being adapted to be driven through the mesh of the fabric into said frame, said strip having rounded edges and adapted together with said fabric to be received within a groove in said frame, and a molding secured to the frame and covering said strip and groove.

2. Means for securing screen wire to a frame having a groove therein, including a continuous metallic strip stamped along one of its longitudinal edges to provide a plurality of securing tangs, the latter being arranged at right angles to the strip and of uniform width throughout the maior portion of their length, and adapted to be driven through the mesh of the fabric and groove into said frame, said strip having rounded edges and adapted to be fitted in said groove thereby crimping the fabric therein, and a molding secured to said frame and covering said strip and groove.

In testimony whereof I aflix my signature in presence of two Witnesses.

WALTER W. SCHMIDT. Witnesses:

GERTRUDE GRABE, L. J. SCHMIDT.

five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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