US7646A - Mprovement in machinery for ginning or picking cotton - Google Patents

Description

PATENT OFFICE.

F. A. GALVERT. 'OF LOVELL, MASSACHUSETTS.

MPROVEMINT iN MACHINERY FOR GINNING 0R PICKING COTTON.

Sbeciicution forming nariof T. \itersPatent No. 7.646. dated September 17. 1.850.

Tn "l/ZZ whom, it may concer-n:

Be it known that whereas I, FnANors AL- TON CALVERT, of Lowell, in the county of Middlesex, in the Commonwealth of Massachusetts, one of the United States of America,

have invented certain Improvements in l\'Ia-.

ehin'ery for Picking Cotton or Cotton-Gills: Now know yc that I, the said Finnois AL'roN CALVERT, do hereby declare the nature of my said invention to consist in an improved machine for picking eotton-that is, in a machine by which the iibers of cotton are torn from the seeds and from any other extraneous matter which may be mixed with them, whereby the separated fibers are less broken after the operation ef such picking than is the case with machines which have heretofore been used for the same purpose.

nThe drawing i`s a side elevation in section of my improved machine.

A is one of the side casings in which suitable bearings are fixed for 'the axes of the working parts.

B is an endless band, constructed of any material capable of conveying cotton to a pair of feed-rollers. Y

C C are the feed-rollers, constructed so as pass the cotton to the combs or toothed cylinder D. This cylinder, from preference, I make of i'ron, though it may be made of any other suitable material. On the surface of this cylinder is -placed aV number of combs running parallel' 'with its axis. The teeth of these combs may project beyond the periphery of the cylinder,or they may be concentric-ith it; but in the latter case a groove is made under their points. This cylinder, without departing from my invention, may be made of a series of disks with teeth on the surface at right angles tothe axis; or the teeth on the cylinder inay be arranged at any angle between those I have already described, the iirst of which are parallel to the axis, and the second at right angles Ato it.

E are rollers or bars made to revolve in the vsame direction as the toothed cylinder D.

These rollers or bars are so constructed that in any plane through them at right angles with their axis a gap or blank space is left as shown in the drawing.

- F is a cylindelmade to revolvein the contrary direction of the combs or toothed cylin derD, andpat a greater speed. Upon the peeration.

riphery of this cylinder a series of brushes or a continuous brush is ixed, of any suitable material; but I prefer one made from bristles.

The operation of my improved machine is as follows: The cotton which has to be picked or torn from the seeds or other impurities is placed, in the usual manner adopted in former picking-machines, uponthe endless band B, the upper side of which is made to move toward the feed-rollers in, the direction shown by an arrow; but this band has not a continuous uniform motion, but, on the contrary, it has an intermittent motion only-that is, it is made to move through a certain space and then to st op, by any well-known machinery' such as the Geneva stop-motion, or wheels having teeth on only a part of their periphery. The effect of this action on the endless band is that the feed-rollers are only supplied at intervals from the cotton on its surface.

The drawing exhibits the machine after the feed-rollers have delivered aportion of cotton onto the surface of the comb or toothed cylinder `and are for a time at rest, but all the other parts of the machine are in active op- The cotton so delivered is carried by the teeth on the cylinder D against the roller or bar E when in the position shown, and

teeth are carried kforward under the roller or bar E', and any seeds or other extraneous lnatter to which they al'iixed are arrested and separated by the projecting point of E at a. As all the other parts of the machine revolve at a uniform speed, except the endless band and the feed-rollers, the cotton shown to have been first delivered is continuously acted upon lby the teeth in the cylinder D until the gap or blank space in E becomes concentric with the cylinder D, if circular; or if of another-form, leaves such an opening between the-cylinder D and itself that the cotton, by the action of the cylinder D, has room to escape to the next roller or bar, E2, which roller or bar is not then in the position shown in the drawing,

,with the cylinder D,- as shown in the drawing, that E has to D, and such is the action of the succeeding rollers or bars E 'and E with rel"- erence to the cotton carried forward by the cylinder D.

It will be seen, ou examination o f this drawing, that each roller or bar E forces the fibers of those fibers which have been caught by the but it is then in the same relative position' the cotton inone direction so long as they are attached to seeds or other extraneous matter, while the teeth on the cylinder D continue to carry forward all such iibers as are disengaged from the seeds. Thus, by the continuous ac tion of the teeth of the cylinder l) on the un-- clanedand unpicked ibers'of cotton and the change of positiom the cotton is forced into vby the arresting-rollers E, all the seeds 'and extraneous matter lare torn froml the cottonibers, and the picked or cleaned cotton is carried forward in the teeth ofthe cylinder D,

.and are-withdrawn from them as they come in contact with the surface of the brush F;

With regard tothe speed ofthe various l cylinders and rollers, I do not bind myself to any particular speeds, for, according to the V quality of the cotton and .other circumstances,

variousl relative'speeds may be nccessary,' and y Datedl London February 8, -1850.

FRS.. "A. CALVERT.

- Witnesses:

lJosnrrr MARQUETTE, WILLIAM EWING. y A

l Bz'slzfopsgate OLmchg/ard, London.

Images