US1739701A - Screen - Google Patents

Description

Dec. 17, 1929.

W. WILSON SCREEN Filed Aug. 18, 1925 2 Sheets-Sheet INVENTOR Wa/swf f/S ATTORNEY Dec. 17, 1929. w. c. WILSON www@ SCREEN 2 Sheets-Sheet 2 Filed Aug. 18, 1925 Patented Dec. l?, 192.9

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WILLIAM C, WILSON, OF PORT WASHNGTON, NEW YORK Application led August 18, 1925.

This invention relates to improvements in screens. Y

'One of the objects of this invention is t provide a screen which is'capable of being readily and quickly repaired and from which defective or worn out wires may be removed and replaced with great dispatch and without dism'ounting the screen from its operative position. A

i Another object of the invention is the production of a flat screen having wires which will not have a tendency to sag and which may be drawn taut andvheld in this taut condition. Y H

Another object of this invention is to enable any elongation of the wires due to stretching in use to be readilyand easily taken up or compensated for.

Still another object of my invention is to enable the supporting of a series of longitudinal wires in a curvilinear path sothat the strands of wire passing` may be more equally and readily stretched and tightened.

' Another object of the invention is to provide a screenk of the type specified which will be composed of a series of separately adjustable sections whereby the wires of'one section may be repairedl or tightened without affecting the wires of any other section.

Another object of the invention is to produce a flat screen in which the usual sagging at the middle thereof will be avoided.

Another' obiect of thel invention is to provide wire-supporting means which will ac-v r' curately space longitudinal-wires to produce an effective screening of the material operated upon. j

YAnother object of my invention is so to mount wire-supporting bars having spacing grooves that, by a simple *manipulation` a new groove portion may be made available to replace grooves in which the walls are worn out. i

Another object of the invention is to provide a 'screen which will be extremely rigid, strong and durable and will be eective to screen sand orthe like.

lVith these and other objects in view, the invention comprises the combination of members andarrangement of parts so combined SCREEN Serial No. 50,911.

as to co-act and cooperate with each other in the performance of the functions andl the accomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illustrated in the accompanying drawings, in which Fig. l is a fragmentary View, in plan,

a screen embodying my invention;

Fig. 2 is a similar view in side elevation of the screen shown in Fig. l;

Fig. 8 is a section on the line 3-3 of Fig. l looking'in the direction of the arrow;

Fig. A is anV enlarged fragmentary section of one end of a screen embodying my invention 5 Fig. 5 is a fragmentarytransverse section taken in part at one side of one of the wiresupporting cross-bars and in part through the outer sleeve of a portion of another bar;

TEig. 6 is an enlarged view, in plan, of one end of the bottom of said screen.

Referring now to these drawings, which illustrate a preferred embodiment of my invention, a suitable rigid frame may be formed in any conventional manner. As illustrated, l, l indicate side-frame members comprising channel bars which are suitably spaced and held rigid by end frame members 2, 2 comprising, as shown, angle-bars. Said side and end frame members are connected at the front end by fastening members 3 Vcomprising, as illustrated, relatively long angle-bars and at the rear end by fastening members 4i comprising relatively short fastening anglebars. The end frame members preferably project outwardly beyond the side members and each of said fastening members has one of its anges viz, its vertical flange connected to a side frame member by bolts 5 and its other flange, viz, its horizontal flange connected to an end frame member by bolts 6. ln broad embodiments such as that shown, l preferably insert a longitudinal stiffening partition bar ll, which is suitably fastened to the end bars. Y

In accordance with the preferred form of my invention illustrated, the side channeliron frame members are provided with a series of pairs of rod-mounting apertures .7

extending from ai'point near one end to a point near the opposite end in a curvilinear path, the members of each pair registering Y With each other and the pairs being suitably `spaced. Mounted in the apertures-7 in spaced relationship are a series ofWire-supporting cross-rods 8, one bar being mounted in a pair of these apertures V7. In the double screen shown, I have mounted on each rod, a pair ofsleeves 9 each having aseries of peripheral grooves 10 suitably spaced from each other, these grooves preferably extending completev ly around the circumference of the sleeve for a purpose which Will be hereinafter explained.

Inrthe preferred .embodiment shown, one end of the'screenv is provided with a single stationary Wire-fastening plate 12, secured to the end bar 21 by bolts 12L and provided with Va series of holes 13, through which are insert- Y ed the ends 14. of a series of Wires 141, said ends wardly and rearwardly to form a Zig-Zag conformation and the ho'olr-shaped ends of the Wires at-this end of the frame are securely ,Y locked to the fastening plate in stationary poceV sition. The Wires 141 are individually strung over cross rods 8 and 'assumea curvilinear path, and each Wire is seated in a longitudinal series of grooves 1() in the peripheries of the sleeves' 9, the grooves on a sleeve being spaced from each other so as to space the Wires and retain them securely in properly spaced relationship. The opposite end of the Wires 14 are fastened in fastening apertures 17 in a series of sectional fastening plates 18 Which preferably have the fastening apertures similarly arranged in zig-zag conformation. Each of these sectional fastening plates 18 are adjustably mounted infrelation 'to the stationary end bar 2l of the frame. As illustrated, the Wires are similarly passed through the'holes 17 and turned into end Vhooks 14:1 beneath the same'and are then clamped in place on the plates 18 by clamping plates 1Qfastened beneath the saidclamping plates bybolts 2O. The apertured fastening plates 18 are adjustably mounted in relation to the bar 2 by fastening to the bottom surface of each plate,

an angle bar 21 spacing the same from the stationary frame bar 2 and adjustably connecting as vertical flange of said angle bar. 21 with' a vertical flange 2a of the angle bar 2 by screwethreaded draw bolts 22 having nuts 23 which, upontightening up, will obviously draw the fastening plate 18 to which the bolts are connected toward the bar 2 and will .thus apply tension on the wiresle.

It Will be seen that thesewires 14 may thus be readily and quickly tensioned and that a section of the seme may be operated upon for repair purposes Without disturbing the other sections. Also that by reason ofthe curvilineal-support of such Wires, the. same'may be tightened up and made as taut as required and, when so tightened up, may be maintained in taut condition indefinitely. Furthermore, that any elongation in the Wires due to i stretching vvhile in usemay be readily taken up by` a tightening of the draW bolts 22 and that when the Walls of that portion of the grooves 10 in Which the Wires are-seated areV Worn down, new grooves may be provided by simply rotating a sleeve on a bar to bringftov the top a neiv'portion ofthe continuous `peripheralgroove 10. Vi

' It vWill thus be seen that I provide a screen which may bereadily and quickly repaired; that defective Wires may be/removed and re-V placed Without removing the screen from its mounted position; that I provide a flatscreen in which the Wires may be drawn taut and Y held in this condition.; that any elongationof the wires due to stretching in use may be readsv ily and easilytalren upV and compensated for; that I produce a screen of a flat type in which longitudinal Wires may be retained in spaced relationship and will be supported on a series of cross-bars arranged in a curvilinear path so that the strands of Wire passing over thesame may bemore readily tightened to form a drum like structure; that I provide a screen of the type lspecified which will be composed of a y series of separately adjustable sections Whereby the iviresof one section may be repaired V or tightened Without aecting the Wires of anyV other section; that I produce a flat screen which Will avoid the usual sagging at the middle thereof; that I providesupporting and Wire-spacing bars in which, by a simple ma.-V nipulation, a neiv'groove portion may be made available to replace -groovesin Vwhich the Walls are vWorn out; and that I provide .a screen which Will be extremely rigid, strong and durable..V w f- .i V

Having described my invention, I claimt-. 1. A screen vembodying .a suitableframe composed of side and Vend members, Wire-fastening means at one end of said-frame, a plurality of independently mounted and removV ralty of independently mounted and removable wire-fastening plates mounted at tlnel opposite end of said frame, a series of wires strung between eaeh of such wire-fastening plates and the opposite end of said frame, removable clamping 'means for connecting the wires to said series of plates, bolts for moving said plates relatively to said frame to tension the Said wires, and means for supporting said wires between the ends of said frame.

n witness whereof, have signed my name to the foregoing specicaton.

VILLIAM C. WILSON.

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