US22789A - Improvement in apparatus to manufacture starch - Google Patents

Description

w. 'DURYEA.

Making Starch.

No. 22,789. Patented Feb, 1, 1859.

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AM. PHOTO-LITHDCQNX. (OSBORNE'S PROCESS.)

T UNITED STATES PATENT Orricn.

WRIGHT 'DURYEA, or GLEN covE, NEW YORK.

IMPROVEMENTJN APPARATUS TO MANUFACTURE STAROH.

Specification forming part of Letters Patent No. 22.789, dated February 1, 1859.

To all whom it may concern.-

Be it known that I, WRIGHT DURYEA, of Glen Cove, in the county of Queens and State of New York, have invented certain new and useful Improvements in Machinery Employed in the Manufacture of Starch; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which--v Figures 1 and 2 are vertical sections at right angles to each other of the grinding and bolting rooms of a starch-manufactory, Fig. 1 being taken in the line re 00 of Fig. 2, and Fig. 2 in the line 1 y of Fig. 1. Fig.. 3 is a vertical section of the bolting-room in the plane indicated by the line z z of Fig. l.

' Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to the process of obtaining the starclrwaterfrom which the starch is subsequently extracted by grinding the grain between stones, then washing with waterand passing the ground grain and water,

through bolting-cylinders, regrinding the tailings from said cylinders, rewashing and re bolting, repeating the regrinding ot' the tail- 1ngs and the rewashing and rebolting of the products till nothing of the grain remains but the bran. In performing this process heretofore it has been common to employ a series of stones arranged one below another on separate floors of a building, with the bolting apparatus interposed between them, and to com mencc the process at the top of the building, and continue it all the way down to the bottom, which has required very lofty buildings, and has rendered the apparatus very difficult of supervision.

My invention consists in a'certain system of arranging the grinding and bolting apparatus and ofcombining thesame by means of elevating and conducting apparatus, whereby I am enabled to bring the whole within two stories of a building, the grinding and washing apparatus all on the upper and the bolting apparatus all on the lower story,.so that,besides having the apparatus together in such form as to be readily supervised or tended, it can be driven by a simpler system of shafting, gearing, and belting than when arranged in so many stories; and it further consists in a certain arrangement of certain of the bolting-cylinders and the conductors for carrying away the starclrwater and the tailings from the said cylinders, in combination with the said inclined surface, for the purpose'of obtaining a very simple system of con ductors for the above purposes.

The invention can be carried out with any number of pairs of stones that can possibly be used with as great facility as with two pairs; but I have only represented in the drawings two pairs, which are sufficient for illustration.

A is the upper story, which contains the grinding and washing apparatus, and B the lowerone, which contains the bolting apparatus. A B are the floors of said stories, and A a floor above the story A.

G O are two pairs of millstones erected in suitable frames D D, erected upon the floor A, and having the shafts a a of their runners,

geared by spur-gears b b c c, with vertical shafts E E, which are geared by bevelgears cl (1 c c, with a horizontal shaft, F, which is suspended in hangers J J from the floor AB G G are washers consisting of vats containing rotary stirrers ff, and arranged one near each pair of stones and in such relation therewith as to receive the grain therefrom through spouts Z I, provided for the purpose. The stir rers are furnished with pulleys g g, to receive driving-belts h h from pulleys i t in the shafts E E, The washers are kept continually supplied with water by any suitable means.

R is a hopper by which the grain is supplied to the first pair of stones,,O, from above the floor A**. I

H H and I I are the bolting-cylinders, arranged in pairs one above another, below the several pairs of stones. The shafts of the upper cylinders are supported in bearings in hangers K K, suspended from the floor A and those of the lower cylinders, I I, in bearings in hangers LL, suspended from a frame, M, which is suspended fromthe. same floor. The upper bolting-cylinders, H H, receive at their higher ends the grain and the water from their respective stones and washers through spouts j 9', coming from the washers through the floor A i N N are concave troughs suspended below the upper boltingcylinders, H H, to receive the water and farinaceous matter passing through the bolting-cloths of said cylinders;

and 70 7c are pipes leading from said troughs into the higher ends of their respective cylinders I I, which have finer bolting-cloths than the cylinders above.

O is an inclined plane or flat table arranged below the lower belting-cylinders and extending under the whole series thereof, to receive the water and farinaceous matter, or what is termed the starch-water, passing through the cloths of the lower bolting-cylinders; and m is a trough at the lower end of said plane or table to receive the starch-water from the said plane or table and convey the same by means of a spout, n, to the cisterns, where the extraction of the starch is to be effected. This table or plane 0, it is obvious, provides for a free circulation of air among, between, and through the lower cylinders, I I, thereby preventing the clogging of their fine meshes so rapidly as would be the case if concave troughs partly inclosing the cylinder, like N N, were used.

1) is a spout arranged to receive the tailings from the lower end of the upper bolting-cylinder H of the first pair and conduct them into an elevator, 1, consisting of an endless chain of buckets, for the purpose of their being conveyed by the said elevator into a spout, g, which conducts them to the second pair of stones to-be reground. The elevator P is arranged between the first and second pairs of bolting-cylinders, H I and H I, and a similar elevator is to be interposed between the adjacent pairs of cylinders throughout the series, whatever be the number, for the purpose of conveying away the tailings from each one of 'the' upper cylinders, except the last one of the series, (represented by H,)to be reground by the next pair of stones in the series.

tis a trough, which runs along the whole length of the bolting apparatus, parallel with the trough m, to convey the tailings from all the lower cylinders, except the last, I, of the series to an elevator, Q, which is arranged at the termination of the series of cylinders, for

'the purpose of carrying the said tailings into a spout, g, which conducts them into the cylinder I, to be therein subjected to a final bolting operation.

r is a spout for the escape of the tailings from Land 8 is a spout for the escape of the tailings from the last, H, of the upper cylinders into the spout r. The tailings escaping from the last pair of cylinders are supposed to be nothing but bran. It shouldbe observed that the lower end of the cylinders I I project far enough over the lower edge of the table or plane 0 to allow them to clear the gutter or trough m, outside of which and parallel therewith the gutter or trough I. is arranged, as shown in Fig. 2.

The bolting-cylinders are severally driven by belts a uv o from pulleys on a short shaft, T, which derives motion through a belt, '10, from a vertical shaft, U, which also drives the shaft F- by bevel-gears t 5. The chain of buckets of the elevator P derives motion from a shaft, V, driven by a belt, 6, from the shaft F, and the chain of buckets of the elevator Q derive motion from a shaft, W, driven by a belt, 7, from the shaft V. The driving-gear and belting may, however, be varied and such an arrangement used as circumstances may .render admissible.

The operation of the machinery is as follows; The grain being fed into the hopper R is conducted between the first pair of stones, 0, and after being thereby ground passes to washer G, from whence, with the water which washes it, it passes by the spout Z to the first upper bolting-cylinder, H. The milky water escaping through the cloth of the cylinder H into the trough N passes by the pipe 7a to the second lower and finer bolting cylinder, I, and where it is further strained, and what passes through the cloth of the said cylinder drops on the inclined plane 0. The tailings from the first cylinder, H, pass to the elevator P, and are carried to the next pair of stones, 0, and reground, and after being rewashed in the washer Gpass into the second upper bolting cylinder, H. The operations of the cylinders H and I are similar to'those of H and I, and if the series of elevators P, stones, washers, and boltingcylinders were further extended the tailings from H would be conveyed to another pair of stones and reground, afterward rebolted, which operations may be repeated any number of times by a proper number of elevators, stones, washers, and boltingcylinders. The water passing through the meshes of the lower cylinders is all conducted by the inclined plane 0 and trough m to the cisterns, where the starch is separated, and the fine tailings from all the lower cylinders but the last one, H, escaping into the trough t and conveyed to the elevator Q at the end of the series, and returned into the last cylinder, I, to be subj ected to a final bolting operation. at the termination of the process escapes by the spouts s and r.

Besides the advantage of providing for the free circulation of air through the bolting-cylinders, the table or inclined plane 0 provides for the escape of all the starch-water from the lower bolting-cylinders by a single conductor, m, and permits the use of a single conductor to carry off the tailings from the lower boltingcylinders, thus saving the trouble of cleaning, which exists when several conductors are used for each purpose, as is usually done.

I do not claim to have invented the process of obtaining the starch-water by frequent repetitions of the grinding, washing, and bolting processes; but

What I claim as my invention, and desire to secure by Letters Patent, is

1. The within-described system of arranging and combining the grinding,washing, and bolting apparatus, to wit, the arrangement of all the stones side by side, with their respective washers conveniently placed below them, with the arrangement of the bolting-cylinders below their respective stones in horizontal se- The bran left bolting-cylinders'I I, and inclined plane or table, 0, with the troughs or gutters m and t, substantially as described, whereby I am enabled to convey, away the starch-water and the tailings from the said cylinders by a single conductor for each purpose.

WVRIGH'I DURYEA.

XVitnesses:

S. H. Warns, J. W. OooMBs.

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