US1171951A

US1171951A - Removable-gauze screen.

Info

Publication number: US1171951A
Application number: US86193014A
Authority: US
Inventors: Henry Higgin
Original assignee: HIGGIN Manufacturing CO
Current assignee: HIGGIN Manufacturing CO
Priority date: 1914-09-16
Filing date: 1914-09-16
Publication date: 1916-02-15
Anticipated expiration: 1933-02-15

Description

"H. HIGGIN.

REMOVABLE GAUZE SCREEN.

APPLICATION FILED SEPTLIB. 1914.

1,171,951. Patentedleb. 15,'1916.

i To all whom it may concern:

UNITED STATES PATENT OFFICE.

. HENRY HIGGIN, HEWPOBT, KENTUCKY, ASSIGNOB '.l.0 THE HIGGIN MANI JFAC- TUBING COMPANY, OF NEWPORT, KENTUCKY, A CORPORATION OF WEST VIRGINIA. I

Specification of Letters Patent. Patented Feb, 15, 1916.

Application filed September 16, 1914. Serial No. 861,930.

Be it known that I, HENRY HIGGLN, a

citizen of the United States, and a resident of the city of Newport, in the county of Campbell and State of Kentucky, have invented certain new and useful Improvements in Removable-Gauze b'creens, of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

It has been a desideratum in the art of screen making and particularly in metal screen making to construct a screen of which the parts are strong and secure, and which can be made demountable "so as to allow of replacing torn wire gauze, and capable of being put together again without danger of being bent or destroyed.

plete.

There are screens in the art where, in addition to the familiar tube shaped screen body, there is a channel formed by bringing both edges of the metallic strip outwardly and upwardly after forming the tube. This channel is non-springing, and stifi'ened by'overlapping the edges to form a bead at the top of the channel and a spring retaining strip is used to wedge the wire gauze or screening in the channel. In'this construction, the sprin retaining strip must be made of slit tubing, or the like, to allow for considerable expansion and retraction, and when it is being pulled out and placed into the channel it is verylikely to become bent or .flattened so as to be useless, and put the screen out of commission until new spring strips of proper size can i be secured It is the object of my invention to pro,- vide a screen of tubular formed frame, preferably, and with a spring channel, and solid non-bending or flattening spline, and this object is accomplished by that certain construction and arrangement of parts which will be hereinafter specifically pointed out and claimed. r

In the drawings, Figure l is a front elevation of a corner of the new screen com- Fig. 2 is a vertical section throu h the same. Fig. 3 is a perspective view 0 a section of the spline. Fig. 4 is a perspective view of one of the corner pieces.

The metal strip for each side of the frame is bent to form a tube'having sides 1 and 2,

top 3 and bottom 4. The one edge of the over at the edge 5 and extended at right angles, parallel with the bottom 4 of the numeral-6, forms one side wall of the channel, thebottom piece 4 of the tube forms the otherside wall, and the base of the channel is formed of the double thickness of' metal formed at'7, 7 It is preferred to have these two thicknesses brazed together for perfect security. A bead 8 -is ormedat the end of the channel wall 6, and'over this bead .is bent the end of the Wire gauze 9 used in the screen. 7

The channel wall 6 being of a single piece of metal, not reinforced in any way, will have considerable of a spring at its outer or beaded end, and accordingly I am enabledto use a nonresilient retalning bar or spline, The bar 10 for this purpose ispreferably made of half of a longitudinally split concavity is not such as to affect the stiffness'of the bar or to give the bar any spring or compressibility. A metal rod split lontube. This last extension, indicated by the gitudinally and formed either with or without a concave surface could insome instances be used. v I

In fixing in the gauze, the end to be secured is bent over the bead at 8, the convex surface of the bar turned toward the head and the bar forced into the channel 7 edgewise. In doing this the concave por-.

tion permits of partially twisting the bar into the channel because the concavity pe'rmits the bar to pass in around the corner formed by the sides and

bottom

1, 1, of the tubular frame Ei'ece. A slighttap of a hammer is then su cient when the bar is nearly in place, to wedge it tightly in the channel beyond. the bead 8. It is understood of course that this wedging in of the bar wedges in the screening also.

To remove the bar for renewing the screening, it is only necessary to lift it slightly with any convenient bladed tool; when aided by the concavity the bar may be twisted out. It remains, then, to be noted that this bar may be of metal, which is stiff, strong and nonbending, so that it may be withdrawn and forced back in without danger of bending or flattening; and further that the concavity in said bar tends also to save chance of pounding the spring side 6 of the channel.

For the corners I provide angle pieces as illustrated in Fig. 4. These pieces may be solid, but for manufacturing purposes I make the angle pieces of a plurality of pieces 13 riveted together by rivets 14:. The corners of the metal frame are mitered and the angle pieces inserted, the parts brazed or riveted together, thus forming a solid substantial framework. The corner pieces are also utilized to hold the usual springs 16 for the side of the screen. The surface of the angle piece is cut away at 17 and one of the mitered corners is also cut away slightly to allow for the insertion of the inner end of the spring 16, thus forming a convenient and easy method of securing the springs. 1

Having thus described my invention, and noted. its advantages, what I claim as new and desire to secure by Letters Patent, is:

1. In a metal screen, in combination with a metal framework formed of a strip of sheet metal folded to form a hollow body portion with the sides of the strip contacting and extending laterally to form the base of a channel and with one side carried upwardly from the base to form a side wall for the channel of a single thickness, wire gauze with its edges'inserted in the channel and a non-resilient retaining bar to hold the wire gauze in place.

2. In a metal screen, in combination with a metal framework formed. of a strip of sheet metal folded to form a hollow body portion with the sides of the strip contacting and extending laterally to form the base of a channel and with one side carried upwardly from the base to form a side wall for the channel of a single thickness, wire gauze with its edges inserted in the channel, a nonresilient retaining bar seated in the channel with a bead along the upper edge of the side wall of the channel to hold the retaining bar in place.

3. In a metal screen, in combination with a metal framework formed of a strip of sheet metal folded to form. a hollow body portion with the sides of the strip contacting and extending laterally to form the base of a channel and with one side carried upwardly from the base to form a side wall for the channel of a single thickness, wire gauze with its edges inserted in the channel and a non-resilient retaining bar to hold the wire gauze in place with a concavity in said bar to pass one edge of the channel. y

4. In a metal screen, in combination with a metal. framework formed of a strip of sheet metal folded to form a hollow-body portion with the sides of the strip contacting and extending laterall to form the base of a channel and with one side carried upwardly from the base to form a side wall for the channel of a single thickness, wire gauze with its edges inserted in the channel and a non-resilient semi-cylindrical retaining bar to hold the wire gauze in place with a bead along the upper edge of the side wall of the channel to hold the retaining bar, said bar provided with a concavity in the non-cylindrical face to pass the edges of the channel.

. HENRY HIGGIN. Witnesses:

VALTER A. FABER, F. W. SWORMSTEDT.