US1871583A - Gravel washing machine - Google Patents

Description

llg. 16, 1932. E11 B'URNSIDE I LSTLSSB GRAVEL WASHING MACHINE Aug. 16,' i932.

E. T. BURNSlDE GRAVEL WASHING MACHINE Filed April 12, 1930 2. Sheets-sheet 2 Patented Aug. 16, 1932 srATEs PA :snGnnILL fr. istrnnsrnn, on snnmvvittninnmua snavel. WASHING ivrAcninn Y Y Applcationlled April 12, ISSV'VSeraIVNO. 443,189.0.-

Referring to the accompanying 'drawings which are made a part hereof'and on whichl similar reference characters indicate similar parts,

Figure l indicates a longitudinal section of the device,

igure 2 a. section on line 2 2 of Figure l, an

Figure 3 a plan viewrof a portion of the device.

In the drawings numeral l0 indicates a tank which preferably has a sloping side 1l. Into one side of the tank projects a supply chute l2 for the material to be washed and number 13 indicates an outlet chute for the dirt which is washed out of the gravel or other material which is cleaned. rlhe top of the outlet chute is slightly below the level of the inlet chute Vas shown in Figure 2. Suitably mounted in bearings onthe frameof an endless conveyor 16. rIhis conveyor consists of a number of sections having side portions 17 and end portions 18 which portions are secured together by means of hinged joints 19 to provide a chain-like scraper conveyor.. The conveyor is driven by means of a belt 2O operating on a pulley 2l. Any other suitable driving mechanism may be provided for operating the conveyor7 that shown being one of several suitable conveyors. The roller l5 preferably is provided with a number of gears 22 which engage the hinge portions of the conveyor in order to drive it. The Vchute l2 delivers into a. chute 23 which confines material so that it falls near the center of the box l() so as to be picked up by the scraper conveyors and delivered up the outy let sidell to a suitable receptacle not shown. Positioned beneath the stream and somewhat to one side of the stream of incoming gravel the tank are rollers 14 and l5 which carry' lis aipipe 241:` having a slot2 positioned vto direct a stream ofwatervagainst the falling*-y gravel,Y the ,force of `the streaml tendingto drive trash and `'dirt which may aggregate with the gravel toward the outletchute13.155.. The pipe 24 isconnecte'd to afsource of water i under pressure suflicientto give the necessary' force to the stream of water as it is projected againstthe falling gravel'.v F rom the Vfore-y going description-itV will vbe V,clearV that 'the' 60....l

trash vand other impurities whichvmayl be mixed withthe gravel are vforcedrin the direction of the outletso that'incasethis ma! terial would not float, it nevertheless would be driven to the point atjwhich it will be o5.

caught in the stream Aofv water 'liowing out ofthe tank.

A Whilel have describedthis apparatus as applied to the washing ofgravel for concrete A and similar'uses Il do not vlimit it to the 70V. specicY art with which it has been described. It should be obvious that the machine could be used for many other purposes, such for eX- ample, as washing berries and fruits in which l the trash would be washed up through the body `of water and the solid portions of fruit c allowedv to settle inthe bottom of the tank Y land be conveyed out to al receptacle or to someother machine in which they are treated or to some other operation which may be 8o'. i Y

performed upon them. The machine mayV also be found of particular utility in preparingl vegetables such as peas and similar. verge tables for canning, from which it is necessary to separate trash and defective or small Si` peas from the solid ones. y c

It will be obvious to those skilled in the art that various changes may be made inmy device without departing from the spirit of the invention and therefore Ido not limit myself to what is shown in the drawings and described in the specification but only as in# dicated in the appended claims.

Having thus fully describedvmy said in- Y vention, what I yclaim .as new and desire to secure by Letters Patent is: c

l. A gravel cleaning machine comprising a tank having a sloping bottom,l a conveyorV comprising a series of scoops movable through the tank to move the gravel'along; lo

said sloping bottom andlout of the tank, a

Ygravel inlet chute at one side of the tank, a vpipe beneath said chute having an upwardly directed slot to direct water upwardly through the incoming gravel, a pair of guide partitions for directing the gravel into the path offvvater from said ppein the tank` and into the path of the conveyor, and 'anout-v l' let chute positioned opposite the inlet chute -for carrying 0E Water and light material Washed out of ,thek gravel,"substantiallyas-set l forth. Y

sof

2. A gravel cleaning machine'fcomltiri'sing f` a tank having a sloping .bottoma Conveyor movable through the tankto move the vv'ashed gravel along said sloping `bottom and out of Y the tank,va gravel inletchute at one side of the tank,` apipe beneath-said vchute .having a slot to direct VWater upwardly through the incoming gravel, a pair of guide partitions for-.f

directing the gravel toward a central place in the Vtank throughtheflow of Water from said pipe and in the path'of theconveyor, an-

outletV Y chute f positioned opposite the .inlet Ychute for carrying off Water and material Washedaout not the'V gravel, andan inclined baffle plateV secured in the tank adjacent theV outlet chuteandl above Vsaid conveyor ordi- Y recting Water and trash LWashed out ofthe gravel upvvardlytovvard saidV outlet chute, Y

substantially as-set forth. Y,

In Witness whereof,

EDGEHILD T: BiinNslIDE..

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