USRE9161E - nelson - Google Patents

Description

2Sheets-Sheet1. T. NELSON, deo'd.,

Assignor, by mesme Assignments, to E. WILHELM. BuckWheat-Hullng Machine. No. I high n t "unf/. I3,

ZSheetS-Sheet 2. T. NELSON, decd., Assignor, by mesne Assignments, to E. WILHELM. BuokWheat-Hulling Machine.

Ressued April 13, 1880.

vin e l' MPEYERS, PMDYQLIWOQRAWER, wAsmmTon. u C.

UNITED STATES PATENT OFFICE.

EDVWARD fli4l-HELM, OF BUFFALO,

NEW7 YORK, ASSTG'NEE, BY MESNE BUCKWHEAT-HU SPECIFICATIO forming part of Reissued L Original No. 100,700, dated March 15, 1R70; :intedated Mar To all whom `it may concern:

Be it known that THOMAS NnLsoN, late ofthe city of Troy, in the county of Rensselaer and State oi' N ew York, did invent certain new and useful Improvements in Machines for Hulling Buckwheat, oi' which the following is a full, clear, and exact description, .reference being had to the accompanyi ng drawings.

This invention relates to a machine forhulling the buck wheat preparatory to grinding the same into Ilour by detaching and separating the hulls or shucks and skins from the meats.

The object of the invention is the construe tion of a machine by which this operation is carried out expeditiously and economically;

and it consists, in a buckwheat-hulling inachine, in the combination, with a suitable hulling mechanism arranged in a tight case, the zo surrounding sides of which are cut ott' from any connection with the suction, and a suction air-trunk, whereby the light oft'al is separated from the heavier pieces ot meats, of one or more sievcs arrangedin a suitable case and 2 5 interposed between the hullin g mechanism and the suction air-trunk, whereby the flour and LLING MACHINE.

etters Patent No. 9,161, dated April 13, 1880.

ch .'i, 1370. Application for reissue filed December :'19, 187i).

Fig. 2 represents a perspective view from the receiving end. Fig. 3 represents a perspective view 'from the opposite or discharging end. Fig. i represents a horizontal view ot' the upper stone. Fig. 5 represents a horizontal view of the under steile. Fig. 6 represents a vertical section of' the stones and their eonnection with the machinerame, Ste. Fig. 7 represents a vertical longitudinal section.

Fig. S represents a vertical transverse section. Fig. 9 represents a top-plan View oi' the lnachine.

Like letters of reference rci'er to parts in the several figures.

a represents the upper hulling-stone. b represents the under stone. c represents the frame-work supporting' the plates, stones, Ste. This trame-work maybe made of wood or iron, and constructed in any suitable manner for the purpose, which is to support and sustain the driving and principal working parts of the machine.

(I represents the curb or casing surrouiuling and inclosiug the stones o and b, thus forming a chamber, within which the operation oi' hulling is performed. c represents the coveringsimilar fine broken particles of meats are separated from the hulled material and collected previous to subjecting this material tothe action of 3o the suction air-trunk, as will be hereinafter more fully and in detail explained; also, in` combining with the hulling mechanism arranged in the close case (the sides of which are cut ott' from any communication with the suction) one or more shaking-screens arranged in a ease provided with a Hour-spout located at a point outside the iniiuence of' the suction, and a suction air-trunk connected with the 'tail end of" the screen or screens, substantially 4o as and for the purposes hereinafter explained; also, in the peculiar construction ofthe oscilplate over this chamber, and j' represents the bottom of this said chamber.

The upper stone, a, is securely fastened to the plate c, and remains stationary. In the center ot' thc plate c there is an eye or aperture,j, through which the spout ofthe hopper g is passed downward in the usual way. The stone c is constructed as shown in Fig. 4, and so arranged that a section may he easily re moved and another set in its place. Stones sometimes become glazed, cracked, or otherwise imperfect, when it may be convenient to replace them. Another advantage to be derived from this mode of construction is that all liability of a stone bursting is done away lating screen and the stationary dischargespout of the hulling mechanism, whereby the receiving end oi" the screen adjoining' the stationary discharge-spout is given a free oscillating motion; also, of various details of construction, as will be hereinafter fully set forth;

In the accompanying drawings, consisting of two sheets, f nigure 1 represents a perspective view from the driving side of the machine.

with, and any kind of stone or composition may be used which may be suited to the purpose. These sections are secured to the plate c, as shown in Fig. 4, on the outer edge by the flange fr., which covers the edge ofthe stone suiliciently to hold it there, and on the inner edge by the circular segmental plates marked f, which also cover the edge of' the stones suiiicicntly to hold them in place.

IOO

These plates i are usually constructed of castiron, but any suitable material will answer.

The operation of placing the sections of stones is as follows: The outer edge is slid under the iiange h and the stone is placed flat to the plate c, embedded in the cement, and after the sections are all thus placed the set-plates `i Iare placed in position, as shown in Figs. 7 and S, and bolted, screwed, or otherwise secured to the plate c. The under stone, b, is constructed in sections precisely similar, and secured to a circular plate, shown at p, Figs. 6, i', and 8, the outer edge oi' the saine having a ilange, h', coveringl the lower edge of the stone, and there are also setvplates, in shape corresponding with the stone, as shown at fi', Figs. i and 5, which overlap the inner lower edge or corner ofthe stone.

Underneath the hopper y there is a depres sion formed between the inner circle of the set-plates i', and shown at l, Figs. 4, 5, (i, 7, and S, and the inner edge of the set-plates forms a ilange surrounding this depression, as shown atm, constructed so that the upper and inner edge forms an acute angle, slightly overlapping this depression, for the purpose of catching, holding, and otherwise preventing large stones and other hard substances from passing between the stones a and b. The working-faces of the stones are raised beyond the surface oi' the tlangcs h` and li', also the setplates 'i and i', as shown in Figs. G, 7, and S, so that they may wear away considerably before it becomes necessary to remove them, the iron plates ontlasting a great number of stones.

lt will be obvious that by constructing and securing the stones in the manner above described they may be made very thin.

The circularl platep, which holds the stone b, is secured to the end of the shaft a, and to this shaft motion is applied at the pulley o, which causes the stone b to revolve.

The upper plate, c,is attached to the standards c, as shown, a screw passing upward through the ear c ci' the plate, a lint underneath, marked q, and another above, marked r, each corner the same; and by means oi' this arrangement the plate c is held in place.

At a suitable place there is a dischargingspout leading from the chamber containing thestones, as shown at s, and having a proper descent to the receiving spout, marked t, which leads therefrom downward at a proper angle from the discharging-spout s, and contains a sieve--or it may be a series of sieves constructed of wire; or they may be made of thin metal, perforated in any suitable manner. The sieve is shown at a. The dotted lines show a series ot' sieves.

The spout t is completely inclosed, except at the ends and at the place marked t. At the place marked in there is another spout, leading downward at a proper angle as an outlet for the finer portions and broken kernels ot' the buckwheat which have passed through the meshes of the sieve.

To the receiving end ing the sieve u, or series of sieves, motion is applied by means of the standard if and the rod a2. The motion is shown bythe dotted lines and arrows in Fig. i), and is of an oseillating nature. The rod u2 is attached to an eccentric or its equivalent at c, geared to the shaft n, as shown.

By placing the standard u at the position and point shown it will be seen that the motion ot' the spout is considerable at its receiving end and but slight at its discharging end.

The object of having a series ot` sieves would be principally to separate the diiiereut degrees oi' iineness.

At the receiving end of the spout t there is an inclosure, reaching up and covering the opening on the top and sides. This inclosure is marked s', and is intended to be oi' a size sniiicient to cover the outlet of the spout s when the oscillating motion of the spout t is in progress, the faces where they join having su'iiicient curve to admit of the motion, as mentioned.

Adjoining the discharge end otl the spout t its upper end with the eye of a rotary fan, e?. The latter is mounted on a vertical shaft, h2, which extends downward through the bottom ot' the air-trunk d?, and carries at its lower end a pulley, j, to which motion is applied by means of an endless belt from a pulley, g2, on the shaft n.

By the rotation of the fan c2 within its case a current of air is caused to pass upward through the air-trunk d2. The tail end of the spout t, containing the sieve u, discharges into the air-trunk d2, and there is an outlet, j, from the trunk d2, through which the larger fragments of meats and unhulled kernels escape, and through which the air enters the trunk d. The current of air rising within the trunk d? draws thereto from the spout t all the lighter matter, such as hulls, dust, Ste., which are drawn out and upward through the trunk d? to the fan c2, and from thence are blown out through the discharge-spout It?.

rllhe spout io may have leather flaps or gills on each side, (shownat wz, Fig. 1,) which close when the draft from the fan is too stron g.

rllhe operation ot' the machine is as follows: The bnckwheat admitted through the hopper g is distributed by centrifugal force between the stones a b, and the hulls and skins are detached from the meats, and the latter are to a greater or less extent broken up by the operation of the stones. The hulled material is discharged from the stones through the spout s and received upon the sieve n, while the coarser particles and unhulled kernels pass over the tail of the sieve u and are discharged into the air-trunk d?. The dust and other light oftal-such as fragments of hulls and skinsare carried oli' by the air-current and drawn to the fau, while the large fragments of meats and unhulled kernels are discharged from the air-trunk through the opening j at its bottom.

oi' the spout f, eontaini The object ot' the sieve u is to remove the there is a vertical. aix-trunk, d2, connecting atV IOO IO: e

lighter and cracked parts of kernels from the action or draft of the fan, Which might he stron g enough to carry them oil' were they permitted to pass far enough within its reach.

Having thus described the construction and operation of the said invention. of' THOMAS NELSON, what is claimed, and desired to be secured by Letters Patent, is

l. In a buckwheathulling machine, the combination, with a suitable hulling mechanism arranged in a tight case, the surrounding sides of which are cutoff from antir connection with the suction, and a suction airtrunk, whereby the light oifal is separated from the heavier pieces of meats, o" one or more series arranged in a suitable case and interposed between the hulling mechanism and the suction air-trunk, whereby the flour and fine broken particles of meats are separated from the hulled material and collected previous to subjecting' this material to the action of the suction air-trunk, substantially as and for the purpose set forth.

2. The combination, with the hulling mechanism ay b, ar `nged in a tight case, the surrounding sides of which are cut oli from any connection with the suction, of one or more shaking-screens, u, receiving the hulled grain from the hulliug,` mechanism, and arranged in a case, s', provided with Hour-spout n away from the influence of the suction, and the suction air-trunk d2, connected with the tail end of the screen u, substantially as and for the purpose set forth.

rlhe combination of the hulling-stones a and b and the stationaryr discharging-spout s therefrom with the spout s t, constructed and provided with the vibrating' standard or shai't u', its olierating-rod u2, and operatingwvhecl 02, recei\\'in,g` motion from the shaft fn, or their equivalent operating' parts, so as to oscillate the receiving end oi' said spout s' t, substantially as hereinbefore described.

4. The combination, with the hullngstones a and b, oi' the stationary dischargiiig-spout s, the spout s t, oscillating at its end next the spout s, as described, its sieves n, the vertical spout d2, and the exhaust-fan c2, all substantially as and for the purpose described.

5. The combination, with the stationar f discharge-spout s, constructed with a concave end, of the oscillating reccivingspout s t, having a. convex end, substantially as and for the purpose described.

EDWARD VILHELM,

Assignee of Thomas Nclsfm. Witnesses J No. J. BoNNER, CHAs. J. BUcHHErT.

It is hvrehg (',mtifed that the word su1ics, oumuliug in thtl 15th liuc, 55d 1mg@ of the printed specification of these Letters Patent should he, seines, to agree with the original spvcicaton as allowed and 0n file in this (mice.

April 23, 1x50.

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