US156299A - Improvement in middlings-purifiers - Google Patents

Description

1. MARTIN.. Middlings-Puriirers.

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Attorneys AUNITEIJ STATEs PATENT OEEIOEo n JAMEs R. MARTIN, OE HANOVER, OHIO.

IMPR-OVEMENVT IN MIDDLINGS-PURIFIERS.l

Specification forming part of Letters Patent No. 156,299, dated October 27, 1874;,application filed August 8, 1874.

To all whom it may concern: Be it known that I, JAMES B. MARTIN, of Hanover, in the county of Licking and State of Ohio, have invented a new and valuable Improvement in llliddlings-Puriiier; and I do hereby declare thatthevfollowing is a full, clear, and exact description of the construction and operation of the same, reference be` ing had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawing is a representation of a longitudinal vertical section of my middlings-purier. Fig. 2 is a transverse sectional view, and Fig. 3 is a detail sectional view. Fig. 4 is a horizontal sectional view, and Fig.

. 5 is a detail sectional view.

This invention has relation to middlingsi puriers; and it'consists, mainly, in a novel arrangement of a series of riddles having cloths of different degrees of fineness, in combination with air-spoutsegulatin g-valves, and an indirect passage leading into a fan-case, whereby all of the o'al is carried oli' and discharged from the machine through the middlings-duster, located beneath the said fancase and beneath a riddling-shoe. It also consists in the use of inclined traps in the discharge-flue of the fan-case, for collecting the oEal, and discharging it through a valve opening into a spout leading to the riddle-shoe over the middlings-duster, whereby the machine is rendered dustless, and the oft'al is conducted to said middlings-duster to be retreated, and finally discharged from the machine. It also consists in arranging the riddle of the shoe, which is beneath the fan-case, in such manner that it will catch all of the oii'al which does not pass into the fan-case, and discharge this oil'al into the shoe, from whence it is conducted into the duster; at the same time the fine flour which passes through the shoe-riddle will be conducted into a conveyor to be elevated and discharged into the niiddlings-duster on top of the machine, as will be hereinafter explained.

'The following is a ldescription of my im-j provements:

In the annexed drawings, A designates the chest, in which a series of riddles are arranged, which chest is housed in at top, bottom, and sides, and mounted in a suitable frame. On

top ot" this chest, and arranged over the head of the highest riddle T of the series of riddles, is a middlings duster and feeder, B', provided at one end with a feedhopper, B, and containing rotary brushes hand an endless screw-conveyer, l.- The brushes rotate inside of a cylindrical 4wire bolting-cloth, t' i', which revolves around the brushes in an. opposite direction to their revolution, the rst part, t', of which cloth is very fine, and allows only the line iiour to pass through it, which iiour falls into a spout, C, through valve-openings c, and is conducted directly into a mixing-burr, D. The middlings are brushed through the coarser cloth i', and evenly distributed upon the head of the riddle T. The conveyer l, which .is on a shaft, b', is rotated by means of spur-wheel, (shown in IFig. 4,) and clears that portion of the duster and feeder B which does not .extend over the riddle T. The brushfheads t are secured to oblique rods h', which rods are secured to a hub, h2, fast on a tube, h3. The tube h3 is centrally arranged with respect to the brushes, and it contains a right-and-Iefthand screw, 7c, on which nuts 701 are applied, and to these nuts collars 162702 are secured. The rods h1 are flexible, and they pass freely through the collars k2 k2, so that, when the screw k is turned, the brushes will be extended toward the boltingcloth or retracted. By these means the brushes can be nicely adjusted to said cloth. The first riddle T of the series has a No. 8 cloth, and the ne iiour which passes through it is received on a metal shoe, T1, and discharged, through an opening, s, into a vertical spout, C', which discharges into the mixing-burr D. The middlings pass over the tail of riddle T, and fall on a No. 6 riddle, T1, thence on a No. 7 riddle, T2, thence on a No. l0 riddle, T3, thence-on a No. 8 riddle, T4, and thence on` a No. 8 riddle, T5. Whatever remains falls on an inclined board, T6, and is carried off'through apassage, s, and discharged into the burr D. The middlings which pass through the riddles T2 and T4 are in like manner discharged into the mixing-burr D. Between the ends of the riddles furthest from a fan-case, I, are blast-pipes t, which are applied to the end of case A, and provided with slide-valves t for regulating the iniiuX of air through said tubes. The air is induced through the tubes t, between and through the riddles, and through a space, G', by means of a fan, I2, in the case I, and the blasts are so regulated that all or nearly all of the oii'al will be separated from the middlin gs and fine our while being operated on by the riddles. The riddles, the metal shoe T6, and a shoe, G, receive rapid reciprocating motion from a crank on a shaft, g, by means of aconnecting-rod, g'. The air and offal enter the fan-case through indirect passages m m1, which are provided with a regulating-valve, m2, at their highest points, and these passages are so constructed and arranged that theair is drawn directly upward from the space G' 5 then downward into the case I. By these meansan outward blast into the caseAis prevented. From the fan-easel the offal is directed upward in a trunk, I, in which inclined traps j are applied, which catch the offal, and conduct it through an opening, u, provided with a gravitatin g hinged valve, n', and discharge it into a vertical spout, J, which delivers the oal into the shoe G upon an inclined metal shoe. From the shoe G the offal is discharged into a hopper, f, at one end of a middlings-duster, F. The shoe G is provided with a riddle, p, beneath which is a double inclined imperforate bottom, p', which discharges the flour into a horizontal conveyer at the lower end of an elevator, E, containing an endless band of carriers, c, which elevator discharges the Hour into the duster and feeder B' again. The material which is received upon the riddle p is that which falls down through the space G'. The riddle p is subjected to a blast of air, which is drawn over it by the fan I2, as indicated by the course of the arrows in Fig. 1. rIhe middlings-duster F is constructed like the duster and feeder B', and separates the olfal from any good material which may remain in it, the former passing olf through the spout r, regulated by slide-valves v, and the latter passing into the conveyer E to be discharged back into the duster and feeder.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination of the series of riddles,

air-tubes t, slide-valve t', vertical passage G',

leading into fan-case I, the riddle and shoe p G, and the middlings-duster F, all constructed and arranged to operate substantially in the manner as and for the purpose set forth.

2. In combination with the riddle T of the middlings duster and feeder B', consisting of rotary brushes It, rotary screen A', and endless screw-conveyer l, operating substantially in the manner as and for the purpose described.

3. The right-and-let-hand screw k, nuts k', and collars k2, in combination with the flexible rods h1, and brushes It, as and for the purpose set forth,

4. In a middlings-purier, the fan-case I, having indirect curved passages m m1 and v valve m2, in combinationwith a series of riddles and vertical passage G', aus and for the purpose described.

5. The fan-case spout Il, having inclined traps j and opening n, in combination with the spout J, shoe G, and middlings-duster F, substantially as described.

6. In middlings-purifiers, the combination, with the duster F and shoe G, of the conveyers E e and duster and feeder B', combined and arranged to operate in the manner substantially as described.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

J. B. MARTIN.

Witnesses:

GEORGE E. UPHAM, H. C. HoLLINGsHEAD.

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