US294510A

US294510A - Fiber-drying machine

Info

Publication number: US294510A
Authority: US
Publication date: 1884-03-04
Anticipated expiration: 1901-03-04

Description

(Nq Model.) 2 sheets-sheet 1.

T'. G. &`A.`G. SARG'ENT FIBER DRYING MAGHINE.

Patented Mar. 4, 1884.

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(No Model.) 2 sheetssheen 2.

11G. au A. o. SARGENT. FIBER DRYING MACHINE.

No. 294.510. Patented Mar. 4, 1884.

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Y NerTnn STATES FREDERICK G. SARGENT AND' ALLAN C. SARGENT, OF GRANITEVILLE PATENT OFFICE.

MASSACHUSETTS.

FllaifzR-lnmflrac.` MACHINE.

SPECIFICATION ferming'pert ef Lettere Patent Ne. 294,510, dated Meren 4, ieee.v

Application tiled November 13, 1882.

Be it known that we, FREDERICK G. SAR- GENT and ALLAN C. SARGENT, of Graniteville, in the county .of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Fiber-Drying Machines, of which the following is a specification.

Our improvement relates to machines `for drying wool and other bers byair-currents; and it consists in subjecting the samealternately to continuous currents of air from opposite directions, substantially as hereinafter described. A

In the drawings, Figure 1 is a' side view of a wool-drying machine constructedaccording to our invention. Fig; 2 is a vertical central section longitudinallythrough the same. Fig. 3 is a transverse vertical section of Fig. 1.

A is the outer casing ofthe machine.

c is the traveling perforated screen passing around cylinders or drums 8 8.

tl is a similar perforated screen passing around drums 9 and 9c.

eis the feed-apron to deliver the ber between the screens, which carry it-along and deliver it into exit-spoutf. The feed-apron travels around rolls E E, which rotate in the usual manner. A check or stop roll, E, prevents the escape of air at this end of themachine while assisting to feed the ber forward. This check or stop roll rises freely up and down, and is for the purpose of llingthe entire space above the wool, through which air can escape at this end of the machine, while allowing the wool to pass into the machine freely, and it so adjusts itself as to ll substantially this entire space while rising and falling. On the side of the machine is a box, 2, into which the blast-pipeG delivers acurrent of air by means of a fan or other appropriate device of ordinary construction and attachment thereto, which need not be furtherdescribed or shown, being well known'. At the top and bottom of box 2 are air-passages l 1, through which the air passes into chambers 3 3 above andloelow the perforated aprons or screens c and d. The traveling screens c d are so placed in the machine that their surfaces (No model.)

which are opposite to each other are separated by a sufcient space to allow the ber between them to lie loosely and be opened up by the air-currents, and not compressed or matted between these surfaces, which would materially retard the passage of the air-currents through the `ber and consequent drying of it. From lower chamber, 3, the air -blast passes into chambers 4t 4, thence upward through the screens and ber between them into chambers 5 5, and thence out through passages a a in the side of the machine. In like manner, from upper chamber, 3, the air passes down-h wardinto chambers 6 6, and through the screens and intervening ber into similar` chambers, 7 7, and out through holes b b. Thus, while carried forward by the movement of the screens c d, the wool is rst subjected, between ehambers'G and 7, to a downward aircurrent that presses it against screen el, and

next, between chambers 4 and 5, it is subjected to an upward air-current, which liftsit against screen c and shakesv apart its bers, and so on alternately until it is delivered at pipe f. At f the pipe f is brought near enough to screens c and d to doff the wool. off them, and the air-current aids to carry it out through pipe f. The pipe f is as wide as the Screens c and cl. 1

The stirring and opening of the ber by alternate currents of air effects a very rapid drying process, and does not injure the ber.

What we claim as new and of our invention is Y 1. In combination with the moving screensurfaces c and d, the alternate air-passages 4 5 and 6 7, adapted to convey the air-blast in opposite directions through the ber, substantial-ly asdescribed.

`2. In a wool-drying machine, the combination, with two hmoving screen-surfaces, c d, placed far enough apart -to allow the ber to lie loosely between them, of the airdelivery and escape passages 4 and 5 above and below said screen-surfaces, substantially `as described.

3. In combination with screens c d, the passages 6 7 and 4 5, and passages 3 3 and 2,

leading from the air-pipe G, substantially as iber from the screens7 substantially as dedeseribedscribed.

.4. In combination with the screens c d 112W- 1 4 f 1 ing :L space between them, and passages 6 7 5 and 4 5, the feed-apron e, and air stop-11011 E, L

substantially as described. Vitnesses:

5. In combina-tion with the screens c d, the DAVID HALL RICE,

tubef, having its edges arranged to deff the N. P. OCKINGTON.