US224969A - Middlings-purifier - Google Patents

Description

. W.- L TBTER. Middlin-g's Pul ifien No. 224,969. Patented Feb. .24, 1880.

NPETERS. PHOTO-LITHOGRAPMER. WASHINGTON. I10.

g U TED STATES- PATENT ()FFICE.

wIL iAM L, TETER, or PHILADELPHIA, PENNSYLVANIA.

MIDDLINGSQPURIFIER.

SPECIFICATION forming part of Letters Patent No. 224,969,"dated February 24, 1880.

Application filed October 16, 1879.

I To. all whom it may concern Belt known thatl, WILLIAM L. TETER, of Philadelphia, county of Philadelphia, an (1 State of Fennsylvania, have invented an Improve- 111611151 111 Middlings-Purifiers, of which the following is a specification.

My invention relates to that class of puri tiers known as the rotary-boltpurifiers, and

it consists of a rotating bolt f peculiar construction,into which middliugs are fed and acted on by an, as hereinafter set forth; and,

I further, in a construction of the purifier-box I supported upon the wooden ribs.

whereby airis admitted and the quantity gov- A is the reel or bolt, and is constructed in l the usual manner, with the exception that the bolting-cloth does not lie upon the wooden ribs, but instead rests upon iron ribs a, which are By this means the middlings are not carried up, as is done in most machines of this nature, but always remain at the bottom during the rota tion of the reel.

The iron ribs a are shown in section in Fig. 5, They rest upon sections of tube 1), and are held there by countersunk bolts 0. Both ends of the rib is are secured to circular heads.

The sectional iron rib was patented by me in 1879, and bears date of July 8. This form of rib is an improvement upon that, and is especially adapted for this particular use.

The reelA rotates in bearings O O. The axis of the reel is supplied with two drop-ha1n-. mcrs, d d, the purpose of which is to keep the reel from clogging.

At one end of the reel is the feed-hopper B,

from which themiddlings are fed to the feed ing-screw upon the shaft of the reel A, which screw causes the middlings to fall inside the reel. lnclosing the reel is a box, D, which is dividedby a partition, V. At the end of the reel farthest from the feed-hopper B is a dustflue, D. The lower sides, J, of the box areinclined inward, meeting in a conveyor, U. Im-

mediately under this-conveyer is another, W. V

The trough of the conveyor U is furnished with openings at regular intervals, and which are closed at will by paddles c c. The part of the box D next to the blast-box is fitted with j the air-tube L, which has inclined sides Z l l l and an oblique head, 6, forming a clear )assage L. O )enin into this tube L is a.

i 1 l i 6 valve, T, in the partition V.

In the compartment K is a vane, M, which has afulcrum or axis at in, the object of which is to throw the air up against the reel or bolt. It is inclined at any angle from the outside.

At the front end of the machine are the fan N and air-box 0; Opening from this air-box O is a valved passage, P, which admits air to the interior of the reel A, a second valved passage, lt, which admits air under the front part of the reel, and a third valued passage, S, admitting'air into the air-tube L.

Around the reel-head is a division-wall, 7a, which prevents air from passage It from entering the reel, or vice versa.

The valved passage S maybe dispensed with, since the valve T will be sufficient to regulate the supply of air to the rear part of the reel. All of the valves are operated from the outside.

The two conveyers feed in opposite directions, being geared together by wheels Y Y. Upon the axis of the reel A are two wheels, F

and E. A band passes over the wheel F and wheel H on driving-shaft G. Aband passes over wheel E, and a pulley, Z, on the shaft of the upper conveyor. There is also a band which passes over the pulley I and pulley n, which drives the fan N. Situated in the upper part of the box D is a brush, Q, which lies upon the rotating reel. There is a free passage from the reel to the conveyer U between the sides J J and air-tube L.

In the driving mechanism gearing may be entirely dispensed with, and bands alone used. The reel A is set upon a slight incline.

Operation The fan N being put in motion, the reel A is slowly rotated, and middlings fed therein from hopper B. Blast is allowed to pass through P into the reel, through R to the outside of thefro'nt half of the reel, and through S and T to the outside of the rear half of the reel. All of the airis supposed to pass through the cloth of the. reel before finding egress by the flue D. As the reel rotates, the Iniddlings fall upon fresh portions of the cloth, and during this movement the air, beingforced through the cloth of the reel, throws them up, so as to disengage the fluffypait, which is then blown out of the reel into the flue D by the blast from P. The blast in part K is thrown up against the reel by vane M. During-the above action the purified middlin gs pass through the boltingcloth and fall to the conveyor U, Should the middlings which pass the cloth at or near the rear of the reel be insufficiently pure, a paddle, e, at such a juncture is withdrawn, whence all that produced from such a point to the front of the machine is fed or conveyed to the front end and collected, and all from such a point to the rear of the machine is conveyed to the opening in trough U and falls to the conveyer W, which conveys it to the rear end of the machine, whereit is collected and rehandled. The brush Qkeeps the reel or bolting-cloth clean.

In no purifier, to my knowledge, has middlings been treated with air in the mannerdescribed--viz., forcing the air from the outside to the inside of the reel, in combination with a blast of air lengthwise through the reel.

In Oochranes purifiers the air is forced into the reel or bolt through the shaft, and escapes through the cloth from inside to outside, which prevents the escape of the fluffy part, which it is the object of the purifier to do, while with my construction the opposite is effected.

In practice I find that the product is finer, the yield larger, and the power required to drive the machine less than any purifier now I known to me.

.shown, the tendency would be to form a narthe middlings into the reel by a conveyer, as

row stream. which is objectionable; and to overcome this I place a perforated inverted-V- shaped piece, 19, at the mouth of the conveyer, which spreads the iniddlings, so as to be ac ted on thoroughly by the air from valve P.

When the dust-flue D is long it becomes necessary to place a'small suction-fan, N, in

said flue for the purpose of forcing out the matters which would otherwise be deposited therein.

I claim- 1. In a middlings-purifier, the combination of the reel A, hopper B, dust-flue D, fan N, air box or trunk O, partition V, air-tube L, and valves T and It, substantially as and for the purpose specified. v

2. In a middlings-purifier, the combination of the reel A, hopper B and its feeding-screw, as shown, and perforated plate 1), with a fan,

N, air-box O, and valve P, for the purpose of 65 spreading the middlings as they are fed into the reel, substantially in the manner and for the purpose specified.

3. In a middlings-purifier, the combination of reel A, hopper B, fan N, box 0, dust-flue D, partition V and tube L, vane M, and valves P, R, and '1, all constructed within a box, D, substantially as and for the purpose specified.

4; In a middlingspurifier, the combination of reel A, hopper B, fan N and box 0, dusttlue D, partition V and tube L, vane M, and valves R and T, all constructed within the box D, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

WILLIAM L. 'IETER.

Witnesses:

R. M. HUNTER, R. GAVIN.

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