US1874736A - Endless traveling water screen - Google Patents

Description

Aug. 30, 1932. G, BLEYER 1,874,736

ENDLESS TRAVELING WATER SCREEN Filed March 15, 1930 3 Sheets-Sheet l ill wmwgwx www l.. G. BLEYER 1,874,736

ENDLESS TRAVELING WATER SCREEN Filed March l5, 1950 3 Sheets-Sheet 2 Aug. 30, 1932-.

Aug. 30, 1932. L. G. BLEYER ENDLESS TRAVELING WATER SCREEN Filed March 15, 1930 5 Sheets-Sheet 3 :NvENToR Lloyd Gfleye;

ATTORNEYS Patented Aug. 30, 1932 LLOYD e. BLEYER, or MILWAUKEE, WIscoNsiN,` AssiGNon 'roicHA'INBErT COMPANY, OEWMILWAUKEE, WISCONSIN, A coRPoaATroN or -WrscoNsIN Apiication, ,meamarch .15, ileso'.Y- serieu n1436312," I"

This invention relates to endless traveling It is,'therefore, 'the primary object ofthe Water screens and hasl for one of its objects to improve the construction of'priordevices I of -this character whereby they may be renf deredmore eiicient-inuseand less expensive inA maintenance.

The invention relates more particularly to endless traveling Water screens of the type which comprises a pair of laterally spaced endless chains,` which pass around vertically spaced sprockets, each link of 'which chains has secured to it vaV screen basket through which the Water 'passes in order that the refuse carried therebymay be separated out upon the screen surface. It has been found in the actual operation ofl such screens, especially Where the Water contains relatively large amounts'of harsh abrasive substances, g l such as foundry' slag, coal cinders and the like that excessive Wear occurs upon the pintle rolls of the chains, necessitating frequent removal and renewal of these rolls. `1nasrnuch as these pintle lrolls are usually mounted intermediate the spaced `,side bars of thechain links and since the screen baskets areI secured to said side bars, Vit has hereto-4 fore been necessary to disconnect the chain bars from the, baskets and to dismantle the chain in order to remove Worn pintle rolls.

Traveling Water screens of this character areusually provided, in addition to the head and tail 'sprockets aroundwhich the lchains pass, with intermediate vertical'guide 'members with which thepintle rolls engage during the vertical up-run of the screen and it isr the travel of the rolls along these vertical guidesl which results in the greatest Wear o n the said rolls, since they do not ordinarily contact with the boot sprocket Wheels.' VTherefore, iii provision is made toeliminate thegengagement of the pintle rolls with the vertical intermediate guide members during the uprun of the screen, While at the same time providing suitable support for the screen since the Water pressure is usually suilicient to make such support necessary or desirablethe major portion of the Wear which now Y occurs upon the pintle rolls may be eliminated;

i tionalvievv through the baskets and chains throughout this up-runpresent invention to vprovide means which,

Awhile Vfurnishing the necessary lateral support vforthe chains land baskets on the up-run of the screen, will relieve -therchainpintle 55 rolls from their engagementwith the vertical lguidesV and thereby eliminate, -toa great extent, the Wearwhich nowoccurs thereon. A further object ofthe invention is to provide means rfor accomplishing the above desirableresult'comprising additional rollers or members which may engageV the vertical guides 'to furnish thelnecessary yhorizontal support, whichl rollers or members fare so mounted 'as to be readily accessibletofthe' end that they may be removed and replaced `Without thef necessity Y of 'dismantling' the chainjand disconnecting the screen baskets. With the aboveand other objects in view Which will appear` as the description' pro'` ceeds,`theinvention consists 'in the novel details of construction and combinations ot parts more fully hereinafterv described and particularly pointed out in the vappended claims.. L i V Referring `to the accompanying drawings forming'a part of this specification in {Which like reference characters'designatelike parts,

l Figurel I is aside elevational View, partly broken away, of a- Well knownform of endless traveling Water screen embodying `the present invention; f e,

VFigure 2'is an:enlarged-:transverse sec# l l perun of the screen shown in Figurel; i A v Figure 3 is an fenlarged `'vertical sectional elevational view throughy the articulating joint of Aa: ypair of screen baskets; ,l

Figure i'is'an elevationalV View of the parts shown in FigureB, as seen fromthe right of thesaid-ligure; I* j `V Figure' 5 is a horizontal sectional ,-view" `taken approximately on the planev indicated l shown in'Figure 6 `as seen from the right of Y with'the rolls to be hereinafter described, ther constituting the supports `for the screen baskets 18. The frame 15 comprises in part' the vertically extending Zebars19, one iiange 20 of-which is receivablein grooved socket members 21 which areembedded in the side walls 22 of the ,water conduit. The webs 23 of the Z-bars19 Vextend parallelto the Vfaces of the walls 22 and the forwardA flanges 24 of the said bars 19 extendinwardly to formY trash seals withy the fabricatedside members 25 of the .screen baskets, as isvwell known in the art. Boot or tailsprockets 26 are suitablyjournalled upon the frame 15 adjacent the bottom of the 'water conduit and the chains 17 pass around thesersprockets as will be clearlyzunderstood.l

Intermediate the sprocketsgl there Y isprovided -the vertically extending: angles or guides 27 whichfconstitute `in con]unction means for taking thehorizontal thrustimposed upon the screen by thev force ofv the rwater as it flows therethrough. Theehains 17 are provided with pintle rolls 2 8'fwh9h are journalledupon bushings 34 surrounding the chainrpins29 and infprevious constructionsthese pintle rolls vhave, engagedwith vtheV verticalfguides27 during the up-runof the chain to furnishthe necessary horizontal support for thev screens. These pintle rolls Y engageV the teethO of the headsprockets 16 whereby motion may be imparted to the chains and screens, but ordinarily theboot sprockets 26 are so formed or cut away as-at 31 that the said rolls do not contact there# with.

As above stated, the` pintle rolls V28 of the chains 17 are ordinarily mounted intermediate the side bars 32of the said chains and when wear occurs upon such rolls obviously thechainlpins 29 must'be withdrawn and the chains andthe baskets disconnected inv order that such'rollsmay be removed and.v renewed.` '.Thisis a ratherdiflicultfand expensive procedure and in rorder to eliminate the necessity therefor, l have-provided .supplemental rolls83, mounted upon short readily removable'stub shafts 37 which are journalle'd in the side bars 32 'of the chains. The

Y said supplemental rolls are positioned .intermediate the side bars adjacent to-andin alfinementwith the pintle rolls 28, but-they are atv the same timevreadily removable and renewable withoutidi'smantling the chain, it-being only necessaryto knock out the stub shafts 37 witho-ut in any wise disturbing the pintle rolls 28 orV the connecting chain pins 29.

- The form of invention shown in Figures 6, Y

7 and 8,inclusive,is closely analagous to that shown.A in Figures l-to 5 exceptthatthe supplemental .rolls 33V and their supporting stubV shafts 37 are located substantially midway s betweenV the ends of the'chainy links instead "of 'being immediatelyadjacent ay the para@ rolls 28. Thesame'access'ibility and ease of removal andY replacement is still retained,

Y however. It'willmbe noted that the ysupplemental rolls 33` are of greater diameter than the chain pintle rolls,'since the supplemental Vrolls and pintlev rolls are in alinementgand if the supplemental ro-lls were of the same diamf eteras the pintle rolls, they would fail torelieve `the pintle rollsV from the vertialguide members 27. y The peripheries ofthe sprockets y16 and' 2-6 may be cut away or recessed, as

indicated at 16 and 26 (respectively, Figure 1, to laccommodate these larger rolls. It is obvious that those skilled inthe art may vary thedetails of y'construction aswell as thevprecise Varrangemrent of parts without departing from the spirit of the invention and it is not wished to be limited to the above v disclosure except as may befrequired by the claims. y ,Y What is claimed is:

f 1. In;v an endless traveling-water screenQla basket supporting' chain; a guiding sprocket therefor; anV additional guidingl element` ad jacentsaid sprocket ,sprocket engaging pin-` tle rolls carried/by said chain; and additional rolls mounted-in longitudinal alinementwith,

said pintle rolls'for engaging-said additional guiding element to:k prevent excessive wear upon said. pintle rolls, said additional rolls being removable and replaceablewithout' dismantlingQsaidchain; i .Y

2*. In any endless traveling water screen, a basket supporting-chain; a guiding sprocket therefor; an additional guiding element ad- `los jacent said sprocket; sprocketengaging pinn Y,

tlejrolls carriedby said chain; and additional rolls mounted in' longitudinal alinement with sa-id` pintle.- rolls'and substantially 1midway vbetween adjacent pintle rolls, for. engaging said additionalgguiding `element to prevent excessive wear upon said 1vpintle roll`s,said

additional rolls Vbeingremovable and replace- Y able without dismantling said chain. e Y `In testimony-whereof I aiiix my signature.

.Y 1 LLOYD e. BLEYER. Y

Images