US297994A - Centrifugal separator - Google Patents

Description

'3 sheets-sheet 1.

'(No Model.)-

J. JIHENDRZIOKS-ON. QBNTRIFUGAL .SEPARATOR.

No. 297,994. Patented-May 6; 1884;

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No; 297,994. 4 Patented May 6, 1884.

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(No Model.) 7 3 Sheets-Sheet 3.

' J. J, HENDRIOKSON. GENTRIPUG AL SEPARATORV No. 297,994. Patented May 6', 1884.

UNITED STATES PATENT OFFICE.-

J USTUS J HENDRIGKSON, OF N ORRISTOWN ASSIGNOROF ONE-HALF TO CHARLES K. BULLOCK, OF PHILADELPHIA, PENNSYLVANIA.

CENTRIFUGiAL- S'EPAR ATO R.

SPECIFICATION forming part of Letters Patent No. 297,994, dated May 6, 1884.

Application filed January 8, 1884. (No model.)

To all whom it mayconcern:

vBe it known that I, JUSTUS J. HENDRICK- soN, of Norristown, county of Montgomery, and State of Pennsylvania, have invented an Improvement in Centrifugal Separators, of which the following is a specification.

My invention has reference to centrifugal separators for milling purposes; and it consists in certain improvements set forth in the following specification and shown in the accompanying drawings, which form part thereof.

The object of this invention is to provide'a machine which shall be capable of separating the partially-reduced grain from the flour in an efficient manner.

In the drawings, Figure l is a longitudinal sectional elevation of a centrifugal separator embodying my improvements on line mm of Fig. 2. Fig. 2 is a cross-section of same on line y y of Fig. 1. Fig. 3 is a cross-section of same on line 2 z of Fig. 1. Fig. 4 is an elevation of the feeding end of the machine. Fig. 5 is an elevation of the delivery end of the ma- '-chine. Fig. 6 is an elevation of the adjustable bearings for the reel and beater shafts. Fig. 7 is an enlarged cross-section of a part of the reel and beater. Fig. 8 is a perspective viewof the screen-frame removed from the reel, and Fig. 9 is an enlarged view of a portion of the feeding-head of the reel to show the packing.

A is the hopper, into which the flour to be treated is discharged. From this hopper it passes down into the chamber B, and is received upon an endless band, O, carrying brushes 0, and running over two rollers, 0 one at each end of the said chamber.

0 is a board, which is located immediately below the band C as it passes under the hopper. The flour is thereby carried over one. of the rollers 0 and deposited on the screen B, over which it is swept by the brushes,.the finer particles passing through into the feed-chamber D, and the larger particles and impurities screen B extends across the machine, there is a constant shower of flour descending, thereby tending to keep it in a less packed condition than has heretofore been the case. The falling flour is received upon the curved floor d, at the bottom of the chamber D, from which it is picked up and discharged into the reel by scoops 6, having their openings pointing in the direction of rotation of the reel, and carried upon the reel-head E of the reel, and arranged to form a curved or oblique passageway through said reel-head by meeting with the apertures or perforations c. This head E is secured to a sleeve, E which encircles the beater-shaft F, whereby the reel is adapted to rotate upon said shaft F, and rotates within a perforatedpartition, D, which it loosely fits, being made sufficiently air-tight by apacking, 11, secured to said partition. The scoops thus feed the finely-divided material falling through the screen directly into t e reel without compressing and caking it, as is the case with the screw-feed. v

The discharging-head H of the reel is mad identically like the feeding head just described, and as it is designed to free the tailings from the reel into the chamber I, from which they pass by spout I, the scoops h ,fitting over the apertures h, are upon the inside of the reel, as shown. This head H rotates in a perforated partition, I, and the joint is packed at t, as before, and this head is secured upon a sleeve, 11, carried by the beater-shaft as before.

If desired, the discharge spouts or scoops may be arranged upon the outside of thereelhead, and so formed as to offer a retarding effect to the tailings.. I however prefer a positive feed and positive discharge to prevent overloading the reel, and thus render it capable of performing its function to the best adwhen injured or worn out, to be readily removed and replaced, and at the same time presents a practically smooth or unobstructed surface on the interior.

The beater-shaft F carries secured to it a number of spiders,F, to the small arms of which are secured the beatersf, having the oblique parts f on their front faces, so as to tend to throw the flour toward the screens of the reel. This shaft F and sleeves E H are supported and work in adjustable bearings G, (shown in Fig. 6,) by which the heads E II may be adjusted perfectly in the apertures in the partitions D and 1, and prevent binding, either when first setting the machine in operation or after the frame has warped, and is an improvement of much importance.

Secured to one end of the shaft F is the drive-pulley N, and secured to the other end is the sprocket-wheel H, which drives another sprocket-wheel, N, secured upon a shaft, N", by a chain, n. This shaft N is carried in adjustable bearing N, and has secured to it on the other end a pair of sprocket-wheels, N N one of which drives the pulley C of the auxiliary feed by a sprocket-wheel, C, and. chain 0, and the other the reel and conveyers KK by sprocket-wheels M M M and chain M, as shown in Fig. 4. The adjustable bearings N of shaft N enable the chains a M and G to be tightened.

The couveyers K K are arranged in the same plane side by side, and in compartments J J separated by a board, L, both of which compartments open into the reel-chamber above, as shown in Fig. 2, and the entrance to said compartments J 2 from said reel-chamber is divided into a series of passages by vertical division-boards J, between which are valves L, pivoted at their lower ends abovesaid board L, and provided near their upper ends with eyes Z, by which to move them. By moving these valves to one side or the other the good flour may be conveyed to one conveyer and the other to the return-couveyer.

J" are doors whichopen into said passage way to expose the valves when desired either for inspection or for operation. There is also a compartment, d below the feed-ehamberD, the bottom of which is also provided with a valve. This chamber is called the speckbox, and is designed to receive any flour which might escape through cracks or any aperture from the feed-compartment, and turn it into the return-conveyer.

Vhile I prefer the construction shown, I do not limit myself to the details, as they may be modified in various ways without departing from my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a centrifugal separator, the combination of the reel having a solid head on its feeding end, said head being provided with apertures orslots, and hoods for said apertures, with a feed-box in which said hoods rotate to scoop up the flour, and means to feed the flour into said feed-box in a continuous shower the full width of the end of the reel, substantially as and for the purpose specified.

2. In a centrifugal separator, the combination of the reel having a solid head on its feeding end, said head being provided with apertures or slots, and hoods for said apertnres,with a feed-box in which said hoods rotate to scoop up the flour, a screen covering the top of said feed-box, and a brush adapted to pass over said screen to feed the flour through said screen into said feed-box, substantially as and for the purpose specified.

3. In a centrifugal separator, the combination of the reel having asolid head on its feeding end, said head being provided with apertures or slots, and hoods for saidapertures, with a feed-box in which said hoods rotate to scoop up the flour, a screen covering the top of said feed-box, and a brush adapted to pass over said screen to feed the flour through said screen into said feed-box, and a discharge from one end of said screen, through which any lumps or impurities are discharged to prevent clogging of said screen, substantially as and for the purpose specified.

4. In a centrifugal separator, the combination of the reel having a solid head on its feeding end, said head being provided with apertures or slots, and hoods for said apertures, with a feed-box in which said hoods rotate to scoop up the flour, a screen covering the top of said feed-box, and a brush adapted to pass over said screen to feed the flour through said screen into said feed-box, a return-conveyer, and a discharge from one end of said screen, and connecting with the return-conveyer, through which any lumps or impurities are discharged to prevent clogging of said screen, substantially as and for the purpose specified.

In a centrifugal separator, the combina tion of the reel having asolid head on each end, said heads being provided with apertures or slots, and hoods for said apertures, to insure a positive feed and a positive discharge and prevent the overloading of the reel, with a feedbox in which said hoods rotate to scoop up the flour, a long flat screen covering the top of said feed-box, and a fiat brush adapted to pass over said screen from one end to the other, to feed the flour through said screen in a continuous shower into said feed-box, substantially as and for the purpose specified.

6. A reel having a closed head, in combination with a stationary perforated partition or ring-piece, in which said solid head works, the reel-shaft, and adjustable bearings, whereby said reel may be set true with respect to said stationary partition or ring and prevent wear and binding should the frame become warped or shaft-worn, substantially as and for the purpose specified.

7 The combination of the reel with an auxiliary feeding device, which consists of a long flat stationary screen, upon which the flour is pulleys G, and discharge B substantially as brushed, aflat traveling brush moving over and for the purpose specified.

said screen, and means to feed the flour upon said screen, whereby the flour is caused to fall in a continuous shower, substantially as and for the purpose specified.

8. In a centrifugal separator, a reel-head provided with a positive feeding device, in combination with an auxiliary screening device consisting of a long flat stationary screen, upon which the flour is brushed, a flat traveling brush moving over said screen, and means to feed the flour upon said screen, whereby the flour is caused to fall in a continuous shower to first make a separation of the flour or middlings from lump impurities, &c., and then deliver said flour or middlings to said positive feeding device, substantially as and for the purpose specified.

9. The auxiliary feed, consisting of chamber B, having hopper A and board B", in combination with band 0, brushes 0, screen B,

10. The auxiliary feed, consisting of chamber B, having hopper A and board B in combination with band C, brushes 0, screen B, pulleys G inclined board 0, and discharge B, substantially as and for the purpose specified.

11. In a centrifugal separator, the combination of a reel, a beater, beater shaft F, sprocket-wheel H, chain 12, shaft N, supported in adjustable bearings N, sprocket-wheels N, conveyer sprocket-wheels M sprocket-wheel M, sleeve E, and chain M, whereby said shaft N 2 and its wheels may be adjusted to tighten all of the working-chains, substantially as and for the'purpose specified.

' In testimony of which invention I hereunto set my hand.

JUSIUS J. HENDRIGKSON. Witnesses:

R. M. HUNTER, ISAIAH MATLAcK'.

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