US1845676A - Journal box waste oil extractor - Google Patents

Description

Feb 1932- L. c. M NAMARA JOURNAL BOX WASTE OIL EXTRACTOR Filed May 15, 1931 2 Sheets-Sheet mvE/vToR, Leo 6,175/7amara "23 mtmmm Ahh rug 5 Patented Feb. 16, 1932 UNITED STATES PATENT OFFICE LEO G. MCNAMARA, OF INDIANAPOLIS, INDIANA, ASSIGNQR TO JOURNAL BOX SERVICING CORPORATION, OF INDIANAPOLIS, ILNDIANA JOURNAL BOX WASTE OIL EXTRAGTOR Application filed Kay 15, 1931. Serial No. 537,698.

This invention relates to means for removing Wash oil from used journal box waste and has for one of its primary objects the provision of such means that may be employed in a continuous operation rather than intermittently as has heretofore been the case when centrifugal extractorshave been used.

An important object of the invention resides in the positive feed means whereby the oil bearing Waste is carried directly through the mechanism.

A further important object of the invention resides in the provision of means for antomatically increasing the pressure over a layer of the waste as applied to the higher or projecting masses of waste that may be presented so that a uniform extraction of the oil may be secured.

These and other important objects such as the particular combination of the various elements as will be specifically set out in the claims below will become apparent in the following description of the invention as illustrated by the accompanying drawings, in which a a Fig. 1 is a fragmentary side elevation ofa mechanism embodying my invention;

Fig. 2, an end elevation of the mechanism;

Fig. 3, a fragmentary side elevation of a unit roller; 1

Fig. 1, a fragmentary front elevation of the roller; 1 a

Fig. 5, a detail in side elevation of a length of waste conveying chain belt; and

Fig. 6, a detail in top plan elevation of the belt.

Like characters of reference indicate like parts throughout the several views in the drawings.

Under the discharge chute leading from a washing waste conveyor 11 of a washing machine (not shown) I mount anendless chain belt 12 about the horizontally disposed oshafts 13 and 14, theshaft 14 being the drive shaft and theshaft 13 being an idler shaft. Thebelt 12, Figs. 5 and this built up from a plurality ofindividual metal links 15 staggored and each having narrowed laterally contacting eyes at their front and rear ends throughwhich thetransverse rods 16 slidingly pass. Each of thelinks 15 has a cen tral wide area with V-like notches formed on each sideto form openings through which oil may flow downwardly through the belt, .59side plates 17 are provided to fill out the belt to form straight belt edges, each plate being in reality alink 15 cut in two longitudinally. Therods 16 are of such crossrsection area as to resist bending between thelinks 15. The soshafts 12 and 13 are provided with a plurality of plane surfaces corresponding width to the distance between the spacing of. therods 16, the shafts here being shown as having six of such spaces. The shafts are. so *6 formed to serve as sprockets to preventwthebelt 12 from slipping therearound andto provide drive connections between the belt and the sh ft parti a y t ha 4.

A "sprocket wheel 18 around which is an passed adrive chain 19 is fixed one end oftheshaft 14. A.cylindrical roller 20 is transversely positioned under the upper part of thebelt 12 to revolvably be mounted between theshafts 18 and 1 1 and parallel thereto.

Theroller 20 is mounted to have its upper side in rolling contact with the underside of thebelt 12 In the same vertical plane includingthe axis of the roller 20 I revolvably mount aroller shaft 21 above thebelt 12 and fix thereon side by side a. plurality ofsymmetrical rollers 22. Theends of. theshaft 21 are carried inblocks 23 which may be raised and lowered aboutbolts 2 1 and 25;. Each of thebolts 24 and 25 is provided with an adjustingnut 26 as means for pressing theblock 23 downwardly by running the nuts down along the bolt. 1

Each of therollers 22 consists essentially o acylindrical band 27, Figs. 3 and 1,springs 28 between the band and ahub 29 keyed to theshaft 21, and enclosingside plates 30 and 3.1. As here shown,live springs 28 are ployed, each of which has its outer end positioned within a circular groove formed .on the inner side of theband 27 and its inner 7 end position-ed around a boss 52 which projects radially from thehub 29. The outer ends of thesprings 28 are secured against theband 27 by theplates 33 inserted through and 1 0 over the last turn of the spring and held in place byscrews 34. Angle plates are employed to secure the inner ends of thesprings 28 to thehub 29 by having acap screw 36 passed through the angle into theboss 32, theangle 35 in each case having one end over oneboss 32 and the other end over the next succeeding angle so that the cap screw 36 in each case has the ends of two angles drawn thereby against thehub 29. Theangles 35 pass through thesprings 28 to have a turn thereof between the angles and the hub.

Theside plates 30 and 31 are attached to the band 2'? by thescrews 37 to enclose the outer ends of thesprings 28 so as to prevent waste from working around to within the en'- closure defined by theband 27. The central portions of theplates 30 and 31 are cut away to provide clearance around theshaft 21 so as to permit relative movement between theshaft 21 and theband 27.

Therollers 22, Fig. 2, here shown as twelve in number are fixed to theshaft 21 in such a manner through theirhubs 29 that the individual rollers will be revolved in unison upon rotation of theshaft 21 and yet each individual roller may upon sufficient pressure being applied be moved to an eccentric position of theshaft 21 with a sliding action between the next adjacent rollers. Asprocket 38 is fixed to one of the outer ends of theshaft 21 and has achain 39 passed therearound as a means of revolving the shaft.

In operation, waste is dumped from thechute 10 onto the upper side of thebelt 12 which is being revolved in a direction to carry the waste under therollers 22. At the same time theshaft 21 is being revolved to have the undersides of therollers 22 travelling in the same direction as that of thebelt 12, both the belt and the rollers being power driven. By suitably drawing down thenuts 26 therollers 22 are carried toward thebelt 12 to bear against the waste thereon with sufficient pressure to press out the desired quantity of oil from the waste. Now as it often happens the waste will be disposed upon thebelt 12 in more or less irregular masses, some of the waste being spread out and some of the waste being in bunches, with the result that an irregular elevation of the upper surface of the mass of waste is presented to pass under therollers 22. Where the waste is uniformly distributed in even thickness across thebelt 12, therollers 22 will be raised uniformly upwardly from thebelt 12, but where thelump 40 of waste of additional height is encountered, theroller 22 under which that lump happens to pass will be forced upwardly a greater distance than that of the adjacent rollers to permit the waste to travel thereunder. While thisparticular roller 22 is being forced upwardly, thesprings 28 back of theband 27 therein are being compressed with the result that theparticular lump 40 is thus subjected to an additional pressure and'the other waste of the lower elevation is subjected only to the normal pressure of the adjacent rollers which have not been raised to that higher elevation.

Since each of theindividual links 15 of thebelt 12 presents an upper flat surface and are closely spaced one against the other, there is nothing to cause the waste to catch or hang onto thebelt 12 and as it comes outfrom under therollers 22 it may be dumped ofi the forward end of thebelt 12 freely as the belt returns around under thedrive shaft 14. The oil pressed out of the waste under therollers 22 drains downwardly through the V notches on the sides of thelinks 15 away from the waste. Thebelt 12 is held rigidly against therollers 22 by theroller 20 immediately thereunder.

Particular attention is directedto theemploymentofthe side plates 30 and 31 on the sides of theindividual roller sections 22. These platesare machined to cause the adj acent sections to slide vertically one plate against the other with a fit sufliciently close to prevent oil from escaping upwardly therebetween as it is pressed out of the waste below. Referring to Fig. 2, when an extrahigh portion 40 of the waste is encountered, theroller section 22 pressing thereon presses out the oil downwardly. Such pressedout oil is prevented from escaping laterally by reason of the presence of the side plates on the adjacent sections, and since the adjacent .roller is pressing down on thelower waste portion, the oil from the higher waste portion can not enter into that lower portion but escapes downwardly only through thebelt 12. Were the sidesof thesections 22 0pen, such oil escaping from the higher waste portion would flow to within'thering 27 and thence back on the waste after it left the roller sections thereby preventing the drying of the waste.

While I have here shown and described my invention in the form as now best known to me, it isobvious that structural variations may be made without departing from the spirit of the invention, and I, therefore, do not desire to be limited to that precise form nor any more than maybe required by'the following claims.

I claim:

1. In means forextracting oil from used journal box waste, a presser unit comprising a plurality of rollers adapted to be carried side by side on a common actuating shaft, each of said rollers embodying an outer circumferential band, a hub adapted to be fixed tothe saidshaft, springs secured to and between the band and the hub holding the band about the hub and resisting relative movement therebetween, and a plate on each side of the band enclosing the outer sides of the bands. r s

2. For extracting oil from used journal box waste, a chain belt, means for driving the belt, a pluralit of rollers yieldingly directed toward the belt, and means for driving the rollers in unison, each of said rollers having a side enclosure fitted to slide closely over the adjacent roller side.

3. For extracting oil from used journal box Waste, a chain belt, means for driving the belt, a plurality of rollers yieldingly directed toward the belt, and means for driving the rollers in unison, said belt being com prised of a plurality of links having flat areas on top and bottom sides, and a non-yielding roller receiving the belt thereagainst below said rollers, a side plate on each side of each of said rollers, and said rollers being spaced closely together to have a sliding fit between plates of adjacent rollers. I a

4:. In means for extracting oil from used journal box waste, a presser unit comprising a plurality of rollers adapted to be carried side by side 011 a common actuating shaft, each of said rollers embodying an outer circumferential band, a hub adapted to be fixed to the said shaft, springs secured to and between the band and the hub holding the band about the hub and resisting relative movement therebetween, and a plate on each side of the band enclosing the outer ends of the springs, said rollers being spaced along said shaft to have a plate on one roller in sliding contact with the plate on the next adjacent roller.

In testimony whereof I affix my signature.

LEO O. MoNAMARA.

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