US462189A - Saw-gin - Google Patents

Description

(No Model.)

J. A. BACHMA-N.

, SAW GIN. '110. 462,189. Patented Oot.27,1891.

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UNITED STATES PATENT JOSEPH A. BACHMAN, or AUSTIN, TEX/xs.'

SAW-GIN.

SPECIFICATION forming part of Letters Patent No. 462,189, dated October 27', 1891 Application filed December 22, 1890. Serial No. 375,482. (No model.)

To ft// whom it' may concern:

Beit known that I, JOSEPH A. BAOHMAN, of Austin, in the county of Travis'and State of rlexas, have invented a new and Improved Saw-Gin, of which the following is a full, clear, and exact description.

4-My invention relates to improvements in cotton-girls; and the object of the invention is to produce a gin which will do a great amount of work, which will occupy but little space, and which' will separate the cotton into parts of different quality.

The various parts of the machine embodying my invention are not in themselves new, but the parts are arranged in such a manner as to form a new combination. As gins are ordinarily constructed, the seed and lint are entirely Separated in one roll box or hopper, and the operation of the machine is comparatively Slow, as it takes a considerable period of time to entirely separate the lint from the seeds; but by means of my invention the operation is. performed in less than one-haii` the time, owing to the upper roll-box boing especially adapted 4to raw cotton and the lower one to half-ginned cotton, as the lint and seeds are only partially separated in one rollbox and are then delivered into another, where the operation is completed.

My invent-ion consists in certain features of construction and combinations of parts, which will be hereinafter fully described, and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the gures.

Figure l is a side elevation ot the machine embodying my invention, and Fig. 2 is a vertical longitudinal Section of the same.

The frame-work or casing A is divided by a horizontal iioor A, extending centrally through it into two compartments, each of which communicates by a iiue b with a main flue B, which discharges into a condenser in the ordinary way, and mounted in the front portions of the frame-work in each of the compartments are the saws C and C', behind which are brushes D and D', respectively, which revolve in opposite directions to the saws and which brush the lint from the saws, and at the same timecreate a current of air strong enough to drive the lint up through the fiue B.

The saws and brushes are ofthe usual construction, andthe saws project through grates F and F', respectively, into the roll-boxes E and E', which are arranged one above theA other, as shown, and which have openings E2 at the bottom, and are also open at the top, so that the half-ginned cotton in the Lipper rollbox will be delivered into the lower box, and the seeds may be allowed to drop from the lower box in the usual manner.

In the bottom of each box E and E is a regulatingplate e and an adjusting-screw e for the same, which plates are used for regir lating the cleaning of the seed in the ordinary way and form no part of my invention. The saws C and the grates F in the upper portion of the casing A arev coarser than the saws and grates in thelower compartment, and the regulating-plate in the upper roll-box E is adjusted so that the upper saws will only remove the best and longest ibered lint from the seeds, and this will be removed from the saws by the brush D and delivered into the flue B. The half-ginned seed will drop into the roll-box F and the finer saws C will separate the remaining portion of the lint from the seeds, and this will be removed by the brush D and also be delivered into the flue B. lt will thus be seen that the gin will work faster than two ordinary machines, as only half the work of ginning is done in one rollbox and finished in the other, each box being especially adapted to the condition of the cot,- ton at the different stages of the operation.

In the drawings [have shown the upper and lower brushes arranged to deliver into one 'Hue B; but it is obvious that separate flues may be provided, and that thus two qualities of cot-ton may be produced, and it is also evident that the arrangement of the device may be carried out to a iurther extent and three or more sets of saws and brushes provided; but in practice two sets are found most convenient. v

The shafts on which the saws and brushes are'xed extend outward through one side of the casing A, and the ends of the saw-shafts are provided with pulleys C2 and C3 and the brush-shafts are provided with pulleys Dzand D3, and the brushes and saws are all driven IOO by one belt G, which extends over a drivingpulley G', and is then made to extend around the other pulleys and over an idler H on the upper portion of the frame or casing. The idler-pulley H is mounted in a box H', which moves vertically in a slideway a of the main frame, and the box is pivotally conn ected With alever J, by means of which the box and I pulley may be raised, thus tighteningV the belt G.

I have not shown the detailed construction of the lever and boX, as any means may be used for raising` the latter. lt Will be seen by reference to the drawings in the Fig. l that the pulleys are arranged in such amanner that the belt extends around a greater portion of their bearingsurfaces and agreat deal of power Will thus be imparted to them and the saws and brushes with Which they are connected.

I do not claim in detail the construction of the parts described above; but the arrangement of the coarser and finer saws and the roll-boxes and grates for the same embody the essential features of my invention.

The operation of the machine will be readily understood. The cotton is fed in a raw state into the upper roll-box E in the usual manner, the coarser lint is separated from the seeds in the usual manner, and the seeds and the liner lint drop into the'lower roll-box, Where the operation of ginning is completed.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- A cotton-gin comprising a case having two compartments therein, one above the other, and provided with a common flue, a roll-box for each compartment, one being made to deliver into the other, grates of different degrees of neness for the roll-boxes, revoluble saws of difterentsizes mounted in the comy partments and projecting through the grates,

and revolving cleaning-brushes for the saws, substantially as shown and described.

JOSEPH A. BACHMAN.

Witnesses:

WILLIAM M. NORTH, A. GIEsEN.

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