US1556142A - Wash mill - Google Patents

Description

P. E. YOUNG WASH MILL Filed July 1, 1922 2 Sheets-Sheet. 1

Oct. 6, 1925- P. E. YOUNG WASH MILL Filed July 1, 1922 2 Sheets-Shut 2 anomto PM 571% 35 Matter nu;

Patented Get. 6, 1925.

UNlTED STATES;v

PHILIP E. YOUNG,- OE FAIR HAVEN, MASSACHUSETTS.

WASH MIL-I4.

Application filed July 31, 1922. Serial No. 578,572.

T all ta /20m it may concern:

Be it known that I, PHILIP E. YOUNG, of Fair Haven, Massachusetts, have made certain new and useful Improvements in ash lvlills, of which the following is. a specification.

This invention relates to a wash mill for rubber which has'a pair of rolls adapted to sheet the rubber and the second pair of rolls adapted to engage the sheet and pull it away from the first pair, so that the sheet is placed under tension between the two sets of rolls. As the rubber emerges from the first set of rolls, jets of water are directed against it,

' to wash it. By the present invention I provide means for preventing the dirt, which is dislodged by the stream of water, from falling into the bight of the second pair of rollers where it tends to lodge and beground back into the sheet.

The preferred embodiment of this mecha nism consists of a pair of scrapers, which may have revolving edges, and which are held by spring tension against the sheet immediately below the point where the water is directed against the sheet. These scrapers act as a dam and prevent the mass of water and dislodged dirt from flowing down along the sheet into the bight of the second pair of rolls, and cause the water to be spilled off at each side of the mechanism clear of the second pair of driven rolls. The springs which cause the scrapers to press against the sheet are not sufiiciently powerful to grind the dirt back into the sheet.

In the accompanying drawings Fig. 1 shows an end section of a mill embodying my invention and Fig. 2 shows a front View thereof.

In these drawings 3 is the main frame carrying fixed bearing blocks 4 and 5 and movable bearing blocks 6 and 7. The movable bearing blocks 6 and 7 may be adjusted through the screws 8 and 9. Mounted in blocks 4: is a roll 10; in blocks 5 is a roll 11;

in blocks 6 is a roll 12 and in blocks 7 is a roll 13. Power is transmitted to the mill by shaft 14 which rotates gear 15. Gear 15 drives gear 16 which is mounted on shaft 11, and gear 16, in turn, is connected with gear 17, which is mounted on shaft 10. It is to be noted that gears 16 and 17 are of the same size. ()n the end of shaft 10, opposite gear 17, is mounted another gear (not shown) w ich connects with a c r espondin gear mounted on roll 12 and drives roll.12:sli ght ly slower than roll 10. In the same way roll 13is geared to roll 11 and turns at the same speed-as roll 12. The arrangement of gears between rolls 10 and 12, and 11 and 13 respectively follows the common practice in wash mill construction. IVater pipes 18 and 19 throw jets of water against the sheet as it emerges from between rolls 10 and 12.

Intermediate the upper and lower pairs of rolls are mounted two idler rolls 20- and 21. Axles for these rolls are carried on arms 22 and 23 and are held upward by springs 24 and 25. Adjacent to rolls 20 and 21 and extending for their entire length, are plates 26 and 27 ,which serve to increase the effective size of the rolls 20 and 21. As is readily apparent, the pair of rolls 20 and 21 combined with the plates 26' and 27, constitute a pair of scrapers for the sheet of rubber.

An idler roll 28 may be mounted above rolls 10 and 12, on arms 29, to control the return of the sheet for retreating.

In operating the mill, the roll 12 is moved to the desired distance from roll 10 through the proper setting of screw 8. Roll 13 is then set a little further from roll 11 than the distance between rolls 10 and 12. The rubber to be treated is placed in the bight between rolls 10 and 12 and the water is turned on through pipes 18 and 19. The rolls 20 and 21 are held apart by some appropriate instrument until the sheet of rubber has passed between them.

As the sheet of rubber descends it will .be caught between rolls 11 and 13 and as these rolls are set further apart than rolls 10 and 12, the sheet will tend to pass through between them more rapidly than it emerges from between rolls 10 and 12, and the sheet will be put under tension. The water striking the sheet under tension will dislodge particles of dirt and then, in falling, will meet rolls 20 and 21 and plates 26 and 27 and will be deflected to the ends of the mill. If desired some appropriate receptacle such as trough 30 may be supplied to catch at least part of the wash water. The operator lifts roll 28 and brings the end of the sheet of rubber up under roll 28 and allows the roll to drop back on top of it. The weight of roll 28 will hold the sheet of rubber against roll 10 and will cause the rubber to be brought back to the bight between rolls 10 and f r retreatment. The

rapidity with which the rubber will be brought back for retreatment can be controlled. by raising and lowering roll 28.

It will be apparent to those skilled in the art that many changes and modifications can be made in the details of construction Without departing from the spirit of my invention.

What I claim is:

1. A mill for Washing rubber and the like comprising two pairs oi rolls through which. a sheet of rubber is adapted to pass successively, the second pair of rolls being adapted to pull the sheet more rapidly than the first pair feeds it, so that the rubber will be placed under tension between the pairs of rolls, means for directing sprays of Water on the sheet as it emerges from between the first pair of rolls and means for deflecting the flow of the Wash Water toward the ends of the second pair of rolls to prevent dislodged dirt from being ground back into the sheet.

2. A mill as in claim 1 in which the means for deflecting the flow of Wash Water consists of a pair of members held in spring contact with the sheet of rubber.

3. A mill as in claim 1, in which the means for deflecting the flow of Wash Wa ter consists of a pair of members held in spring contact with the sheet of rubber, and said pair of members are provided with idler rolls to contact with the sheet oil rut ber.

ll II LIP E. YOUR (i.

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