US3568A - Improvement in saw-gins for ginning cotton - Google Patents

Description

Y little below the periphery of! the saws. roller c is formed of a series of sections that 'wide enough to receive the saws.

UNITED STATES PATENT (NEIGE.

JNO. n. sHEnAnD, on LIVINGSTON, ALABAMA.

IMPROVEMENT `IN SAWfGlNS FOR GINNING QQITTON.'`

' Specification forming part of Letters Patent No. 3.568 dated April 3Q, 1844.y I

segment of the. revolving grate o1" roller against" which the saws act. The lettersof reference designate similar parts in each of the figures.

The following is a description of the construction and operation of lny machine.

A suitable frame, a a, is. made similar to any convenient construction in which the sawshaft b 1s placed. The saws are such as are in ordinary use, and are made to project into the hopper c through a series of short ribs, d, that Vdo not 'extend up' to the topframe, but4 have their upper ends rest against a roller, e, or`

nearly so,approching it very closely, and a The do not quite touch each other, leavinga space Just inside of the periphery they are grooved out on each. face, as shown in Fig. 3. f The surface of the roller is smooth, excepting the spaces lbetween the sections above named, said sections being about the same widthasl the ribs which are brought upto meet them. `This roller or revolving grate is connected to the sawshaft outside the frame yby bands or gearing, so as to revolve in the same direction as the saws, the

periphery running` against the direction ofv said saws, beinthereby prevented from being wedged or cho ed by the cotton, and by revolving againstthe saws loosens the dirt and.A motes, and thereby render them easier separated from the cotton by the trash-brush,

while by being grooved out'on'the inside, as

before described, they; present the least pos.

, sible surface to friction, and the grates are made to wear longer by presenting achanging -surfactant thy. point of friction.

Just behind the revolving grate'e isplaced a cylindrical brush, f, which is made to turn' in the same direction as said grate, and against the teeth of the saws, while the cotton is upon them, thereby removing the metes, trash, &e.,' before the cotton is taken from the saws, and

throws it over into a box, g. This. brush I ing everything heavier than the cotton to fall throughgrates i, pla-ced below said brush. lThe obj ect of making the above-named brushes cylindrical is that no wind lmay be created by their revolutions. Behind .the brush h is a winged brush, k, which throws the cotton out of the machine.4

The fines of my machine I cover on the bot tom with metal, through which oblongor other shaped holes are punched from the upper side, so as to leave projections below, that any remaining nlot'es, trash, and dirt, can drop through without4 choking o r admitting the air from below.

Thewhole machine maybe driven by'means' of'bands and pulleys or cog-wheels. "lhatrepresented is banded, the bands beingtightened by twoidler-pulleys, l, on each side, oli common construction. ,y

What I claim as my inventiox i,'and` desire to secure by Letters Patent, is- Y Connectingtherevolving partofthegrate with the other ruiming 'parts of the machine,

-so'as to cause its periphery .to move ina contrary direction to thesa'ws, and the addition of the cylindrical slow-brush placed between, and in combinationwith the winged brush'aiid the saws, as described. l.

42. The grates placed abate the bottom of the fines, in combination with the cotton-gine, for the purposes hereinbefore specified.

' "JOHN H. sHEnAED.

f Witnesses:

J. J. Guns-iNOUcn,Y L. CALDWELL;

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