US30227A - Improvement in cotton-cleaners - Google Patents

Description

W. H. JOHNSON.

COTTON CLEANER.

No. 30.227. Patented 0011.2, 1860..

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- as usually employed in cotton-cleaners.

UNITED STATES PATENT OFFICE.

"9 WILLIAM JOHNSON, or RICHMOND, ARKANSAS IMPROVEMENT 'IN COTTON-CLEANERS.

Specification 'forming part of Letters Patent No. 30,227, dated October 2, 1860.

To aZZ tuhom it may cortcern:

Be it known that 1, WILLIAM H. J onnson,

which- Figure l isa side view, and Fig.2 a longi-' tudinal vertical section, of the machine.

Similar'letters of reference in each of the several figures indicate corresponding parts.

"The nature of my invention consists in the combination, with a cotton-gin, of an inclined flue having a continuous slatted bottom with curved tapering passages through it, and thefan-beaters, the said parts beipg so arranged and operated that the cotton as it comes from the saws is thrown up the flue by the action of the blast created by the stripping-brush, and

in its passage is thrown down against the slatted bottom of the flue and forward py the 1 actionof the fan-boaters. The cotton, in being .t'orced'through the flue by the stripping-brush and thrown down against the slatted bottom of the same, has thednst, trash, sand,&c.,knocked and blown outof it, and these impurities, by

reason of their snperiorspecific gravity and the backwardcurved inclination of the dischargepassages and the tapering shape of said passages, discharge in a reverse directionfrom that in which the current is moving. Thus having the cotton-discharge. in one direction and the impurities in another or-an opposite direction, obviates all liability of the lint being beaten through the dust and sand discharge passages and of said passages being clogged by the lint, while a perfect and rapid discharge of impurities is insured.

To enable others skilled in theart to make and use my invention, I will'proceed to describe its'construction and operation.

The front part of this cotton-cleaning device is to be placed immediately underneath the cotton-gin, and consists of two cylinders, the enter one, A, carrying saws B, and the inner one, 0, being provided with brushes 1), such The space above these two cylinders is covered by means of a shield, E, containing suitable slots, F, for the saws to project through.

cylinder, and the second revolving against each other. volving motion of the brush-cylinder creates :a considerable draft of air through the box G in the direction of the arrows-as seen in Fig.

Behind the brush-cylinder there is an inclined box, G, containinga series of fan-beaters, H. *The drawings represent two of these fan-heaters, but any number of' them may be employed. The lid of the-box G is suitably covered at I I, so as to accommodate the fanheaters; .The rear fend 'of-,- the box is open.

The bottom of the bot is madeof a series of curved slats, J] Each of these slats is made of tapering thickness,'the' thin'end of each .being at the top and somewhat overlapping the next slat, so asto form between each two of the slats, an aperture, which is of a curved shape, and which is very narrow at the top, as seen at 0', and gradually widens The slats toward the bottom, as seen at O. are curved backward from thesaw and brush cylinders, so that the upper month, 0, of

each aperture is-directed toward the rear end of the machine. The saw and brush cylinders and the fanbeaters are geared together, so that the brushcylinder revolves faster than the saw-cylinder, the first, farrbeater faster than the sawfan -beater faster than the'first fan-beater, 3

Each of the fan-heaters is constructed of a central shaft and radial frames, the latter being covered with canvas or similar material. This is a very cheap construction, and art-- swers the purpose even better'than brushes.

The operation of the machine is as follows:

The saws take the cotton from the gin, draw it through the slots F, and pass it to the brushcylinder, the saw-cylinderand brush-cylinder 2. This draftis increased still more by the rapid revolutions of the fan-heaters, and'as the apertures between the slats of the bottom open-toward the rear end of the machine, as

above setforth, said current of air does not react throughsaid apertures, as would be the case if the apertures were opentoward the current of air. This current of air draws the cotton upward along the inclined and slatted bottom ofthe'box G. Thecotton, as'it arrives underneath the fan-heaters, is subjected to a rapid beating motion, which serves to loosen and'separate all particles of sand, trash, and

similar impurities from the cotton. :These The rapid resisting of straight slat-s, the apertures between which are of equal widththroughout, is effectually prevented.

I am aware that in preparing and cleaning fibrous material-such as wool, cot-ton, 85c.-

long troughs with perforated bottoms have been used, through which the material is driven by a blast or by the exhaustion of the air; but I-do not lay claim to that arrangement..

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

The combination, with a cotton-gin, of an inclined flue having a continuous slatted bottom with curved tapering passages through it,-

and the fan-heaters, said parts being arranged and operating relatively to one another, substantially as and for the purposes set forth. \VM. H. JOHNSON. \Vitnesses: v

'GooDWIN Y. Ar LEE,

I. M. PITTS.

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