US11312A - petee brough - Google Patents

Description

STOUFFER, BRouGH L 'BARR'.

Mansou- No. 11,312. Y Patented my 1131354.'

il UNTTED sTATEs PATENT oEEioE.

JOHN sToUEEER, PETER BEOUGH, AND JOHN w. BAER, 0E GHAMBERSBUEG,

y PENNSYLVANIA.

` `'FLDURING- `ANI) BOLTING.

Specification of Letters Patent N70. 11,312; dated July 11, .1854.

To all whom t may concern.'

Be it known that we, JOHN STOUEEER, PETER BROUGH, andV Jol-1N W. BAER, of Chambersburg, in the county of Franklin and State of Pennsylvania, have invented a new and useful Improvement in the Process of Flouring and Bolting; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this speciicatiomin which- F igure l is an elevation and Fig. 2 Va transverse section.

In the ordinary methods of manufacturing Hour, four bushels `and 25 lbs. of wheat are required in making a bbl. of superline flour, and although there have been processes made known for making a bbl. out of a less quantity it has been found that all attempts heretofore known to procure a regular run of quality, in which the bran or husk is reground with the farina have failed on account of the red cast or color given by the particles of line bran passing through the bolts, and from the regrinding all the oal the gluten has a great tendency to clog the bolt shortly afterusing. At the same time from the great quantity of bran in proportion to the flour passed through the auxiliary mill great loss of power necessarily results, it being absolutely requisite to get up a high speed in said auxiliary mill. In using steam or water for `the purpose of toughening the husk, the soluble and adhesive character of the glutinous portion of the grain is also objectionable.

By our method of entirely separating the bran and the iiouring particles previous to subjecting the stuffs to regrinding by passing them through the first or superfine bolt, A, and then through a second one B under it we obviate this material loss of power required in one of the methods advert-ed to, as it is not necessary to run the auxiliary mill C, at a greater speed than the iirst set of burs, being freed from the objection of adhesiveness of the other process.

On the reception of the ground grain, raised by elevators to the spout D, it is received in the first bo-lt A. All flour of superfne quality is deposited under the head of this bolt and conveyed to the packing chest by spout R, `while the tine flour intermixed with specks is deposited in the screw box N over the draw gates l, 2, 3, 4, 5, 6, and constill further quantity of S. F. flour.

`veyed by the bent tubes E E under and across the second bolt into the screw trough F, from whence it is conveyed and mixed with the stuffs from the first burs by the spout G, to be raised and rebolted in the first bolt, at the head of which it deposits a The specky flour having been thus rebolted, all that passes through the coarser mesh of the lower bolt B (it being covered with S. F. cloth only half way) is conveyed by the open spout S, and screw trough I-I to the auxiliary mill C, by spout I. Under the head of the lower bolt B in the screw trough M a draw gate -7 is placed, which may be opened and deliver into the screw trough F below when the flour is in quality to justify its rebolting. The brown stud received at the tail of the bolt is delivered by screw M into the lower spout K on the end, while the bran passes out by the spout L placed above it communicating directly with the lower end or tail of the second bolt B. The stuffs reground by the auxiliary mill are taken by elevators 0 0, exhibit-ed in dotted line in Fig. 2, to the lower bolt only, being delive ered into the spout P. Any S. F. flour from them is deposited on the gate 7 at the head of the bolt B, and falling through is mixed with that passing through the several gates under the bolt y By this improvement in the bolting process and apparatus we make an insignicant quantity of brown stuff (which is only bran ground fine) and avoid entirely the production of middlings, at the sametime increasing the production of superfine our of uniform quality or brand, with good wheat a barrel being produced from four bushels to four bushels and six pounds.

The practical use of the improvement may be thus explained: When the quality of wheat justifies it and the run of the first bolt shows no specky matter mixed with the Y qualities of wheat may require nearly all the gates to be opened; but there is this advantage gained, there is not that necessity for a low grind (by which quality is sacrificed for appearance) to accomplish the end ing through'the upper'bolt VA is rebolted byV being mixed with the stuffsl (containing the bran) as received from the main burs, by which the quantity of superfne flour is increased While the quality Or brand is maintained, substantially in the manner set forth.

In testimony whereof We have hereunto signed our names before tWO subscribing Witnesses.

JOHN STOUFFER. PETER BROUGrI-I. JOHN W. BARR. Witnesses: f

S. M. ARMSTRONG JAMES MONTGOMERY.

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