US1523007A - Sand screen - Google Patents

Description

` 1,523,007 J` 13 l K H, s. EARLE sAND SCREEN 21 Filed Oct. 6. 19

e. /orafio. 5. Earl A TTORNEY.

Patented Jan. 13, i925.

istanti HORATIO S. EARLE, 0F DETROT, MICHIGAN.

SAND SCREEN. i

Application filed `(ctober 6, 192.1. VSerial No. 565,762.

T 0 all whomy t may concern Be it known that l, Hona'rio S; EAnLn, a citizen of the United States, residing at Detroit, county ot Viaync, and State of Michigan, have invented certain new and useful Improvements in Sand Screens, and declare the following to he a full, clear, and eXact description oi' the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which torni a part or' this specification.

VThis invention relates to sand and gravel screens, and the object of the invention is to provide a screen that is comparatively7 inexpensive in character; and further to provide aI simple and inexpensive device for spacing' the wire strands over which the screen'is termed, the spacing means being adapted to securely hold the strands in the desired relative position and being readily removed or attached. A further object of the invention is to provide a construction that prevents longitudinal as well as transverse displacement ot' the wire strands. Another object ot' the invention is to provide a sand screen in which the wire strands thereof are corrugated and, when the screen is made up, the grooves and ridges of the corrugations eX- tend transversely of the screen. A still further object of the invention is to provide a screen of the character described in which the corrugations of the strands extend in a plane at a right angle to the plane of the screen, each strand being formed with a depression at spaced intervals by which the strands may be secured in spaced relation in an apertured plate for connecting the saine together. These objects and the several novel 'features ot' the invention are herein after more fully described and claimed and the preferred form of construction by which these objects are attained is shown in the accompanying drawings in which` Figure l is a perspective view of a sand and gravel screen embodying my invention,

Fig. 2 is a plan view ot a section of the screen,

Fig. 3 is a bottom View thereor",

Fig. 4 is a view of a portion of the slotted spacing device for securing the strands in spaced relation, and V Fig. 5 is a section taken on line 5-5 of Fig. 2.

In Fig. 1 the usual type of screen is shown consisting of a trame l having supporting legs 2, and the'cross members et oit' the screen are secured across the frame l. These cross members #l as shown in Fig. 4: are provided with a series oi spaced slots 5 for a purpose hereinafter described. The wire strands 8 of the screen as shown in Fig. are provided with depressed portions G at spaced intervals throughout their length andthe wire strands between the depressed portions (3 are formed with a series or corrugations 7. The depressed portions 6 ot' the wire strands 8 are inserted through the slots 5 oit the plates Il and a heavy wire or rod 9 is inserted between the depressed portions 6 and the plates al, as shown in Figs. 2, 3 and 5, which holds the strands in spaced relation, the end ot the wires or rods 9 being turned over at l0 at the edge of the screen to secure the parts in place. The wire strands are secured in place with the corrugations thereof in a plane extending at a right angle to the plane oi the screen and the grooves and ridges of the corrugations 7 extending across the screen pau allel to the plates 4. Thus it can be seen that when sand and gravel is thrown onto the screen shown in Fig. l the same will tend to ride downwardly on the wire strands which act as ways for the gravel and the gravel in passing over the corrugations which extend across the screen is vibrated thereby and s jarred upon striking each corrugation so that all of the line material will pass through the screen much more easily by this shaking action than as though the wire strands were perfectly straight. It will also be noted from Fig. 5 that the plates 4t do not extend upwardly into the ways provided by the wire strands but are positioned beneath the plane of the screen, the object being toA so position the plates t that the gravel does not strike the same when passing over the screen, and in this manner clogging of the screen is prevented. For this reason the wire strandsare provided with high points 1l at each side of the depressions 6 so that the gravel on the strands cannot become lodged against the edge of the plates but may strike the plates in the central portion between the high points 11 which aid in shaking the gravel. While I have shown a flat screen it is to be understood that cylindrical screens of other types may be made in which this construction is utilized.

From the foregoing description, it becomes evident that the device is very simple and ecient in operation, is easily put together llO 5 its utility and mode'o' operation, what VI claim and desire `to secure by Letters Patent of the United States is y f l. A screen fabricveonsistin-g nl' a.- seriesV of Y, parallel Wire strands corrugated n a plane 2. .A screeniabric consisting. ofaseres of Wit-h Ufshaped corrugations of the different strandsextend# ngdnnalinement.tnansversely of the screen and parallel to the spacing devices.

10,1;atparghtvangle toltlieqnlane of the-.sereen 3. A' screen fabriefeons-istingot,a'sei-fiesof Y and provided with ;U,sl1aped;.depitessionsneparallel `Wirestnan'dsA corrugated --in;.aplane 3Q` vspaced!interv-als. :i sei'iesmf spaeingudeivices fat aar-iglityan-gle-totheiplaneyoffthescrcen V V@extending .transverselvof the sereen..f. each.-Eandeprovided Vwith .Ursliaped depressions Yat' consisting` of af flatplate having slotsthrough i-fspaeed,'intewals.iandya'series. ofspacingzde-r. 15:Whicl1 the U-sbaped depress-ionswof wthefvieesl seeuieditotbey,Usslaaped .depressions ,astrands extend, a-ifastening Wire extending;f benetlntlie,plane ,ofgtlie screen.

: 'thronglifthe :U-sliaped idepi'essions beneath lzIntestimonvivhereof, lI signftbis: specili- .ea'cli spacing device and havngianend Vbent ecation. l e Y Y l.fabont one ofthe saidaU-sliaped portions. HQE-ATI() S. EARLE. f

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