US1811553A - Screen - Google Patents

Description

I' J 23, 1931- a. E. McELYEA 1,811,553

7 SCREEN Filed May 31 1930 4 INVENTOR. BY

A TTORNE Y.

Patented Jun e 23, 193i A PATENTTIQI'FFICEI 3 BARNEY MCELYEA, or ST. LOUIS, MIssotrRI SCREEN Application filed m 31, 1920. Serial No. 457,980.

This invention relates to certain new and useful improvementsin screens, the peculiarities of which will be hereinafter fully described and claimed. 1

lhe main objects of my invention are to fasten the marginal edge of a screen proper firmly to a surrounding frame; secondly, to provide a fastening means of'flexible wire cooperating with a groove in the frame-and g afford secure fastening of the screen and permanence in the fastening wire; and thirdly, to other points of construction hereinafter described and claimed. Referring to the drawings, 1.3 Fig. 1 represents a face view-of a screenexemplifying my invention; 7 V

Fig. 2, an enlarged faceview of a corner ofsuchaframe;and I y Fig- 3, a cross section on the line 33 of Fig. 2. r y When a screen proper is secured bytacks to a frame in the usual manner,- the screen proper is liable to become slack or torn from its insecure fastening.

My construction comprises a rectangular frame 4 having a groove 5 near its inner edge 6 preferably on its front face into" which groove the marginal edge of the screen proper 7 is forced so as to line bothsides and bottom {of said groove. Then a flexible strip 8 preferably of metal of similar electrical afiinity as the screen proper, is swaged or otherwise forced down into the groove. so as to clinch firmly the marginal edge of the screen proper against both sides of the groove. This prefferably provides a double engagement of the marginal edge of the screen proper and continuous fastening means all around the frame.

This continuous groove is formed preferably by beveling at the inner corners the meeting ends 11 of the pieces forming the frame, and making such bevel extend from the inner edge of the frame outward at least as to intersection with the groove, so that a conwire as fastening means in'connection with a metallic screen proper secured therein,-and

tinuous groove is formed around the corners of the frame as indicated in Fig. 1. x The meeting edges'forming the joint 9 may be secured by nails as indicated in Fig. 2, or any other suitable joint. may be used. By the provision of a continuous groove as indicated, and a flexible wire strip inserted therein, not only is the screen proper firmly held in the frame, but the corners of said frame are reinforced by the wire 8 crossing I the meeting edges at the corner joints I When the screen proper is of copper, the fastening strip 8 should be also of copper, not only because of itsflexibility and dura- I bility, but to avoid forming an electric con ple by using dissimilar metals in juxtaposition. Thus the screen proper may be of galvanized mesh and the wire 8 of galvanized wirefor-a similar reason. When metals of dissimilar electric alfinity are used, the corrosive action of such electric couple eventually destroys the screen and lessens physical engagement of the wire locking strip and screen. I employ metals of similar electric afiinity and thus secure practically indestructible fastening connection for my screen. g i

While I have provided an:indestructible the groove for said marginaledge of the screen proper, I prefertouse also a covering moulding strip 10 as shown when the frame is used for a window screen or a door screen;

Inother cases the moulding strip may be dispensed with as the swaging of the flexible wire into the groove'and its double grippingaction upon the marginal edge oflthe screen proper, affords ample security as. a fasterr ing means without the use of the moulding strip 10.

I claim: ,7 V I 1. An improved screen comprising a frame,

metallic fasteningmeans of similar electric affinity to the screen proper, substantially as described.

2. An improved screen comprising a frame having a groove for Wire fastening strip, a metallic screen proper and a metallic Wire fastening strip, both swaged into said groove and of the same electric affinity, thereby preventing corrosion and efiecting permanent physical engagement by non-corrosive contact, substantially as described.

In testimony whereof I have aflixedmy signature.

BARNEY E. MOELYEA.

Images