US3569A - snyder - Google Patents

Description

E. s. SNYDER.

Grain Cleaner.

Patented Ap'ril 30, 1844..

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Specification a Iletters remand 3,569, dated April 30, 1844.

To all whom, it may concern:

Be it known that I, ELISHA S. SNYDER, of Flowing Spring, near Charlestown, Jef-. ferson county, State of Virginia, have invented a new and useful Improvement in Machines for Separating Garlic and other Impurities from Wheat, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification, of which y Figure 1 is a vertical section ofthe machine. Fig. 2 top of the stationary cylinder. Fig. 3 under side of the same.

This machine consists ofa cast-ironjstationary cylinder A ribbed on the inside having its ends closed by heads B B or a top B and bottom B thebo-ttom being made of sheet iron punched inward so as to render the internal surface rough. at The top being ribbed and made of cast iron. A plain' head,

however, is sometimes used having its internal surface covered with leather filled with wire teeth. The top B and bottom B are provided with ears I) b and b'which enter corresponding grooves in the ends of the cylinder through which ears pass vertical parallel screw rods R for bringing the top and bottom nearer to or fart-her from each other in order to increase or diminish the space between the ends of the revolving cylinder or rubber (hereafter described), and the. top and bottom, the aforesaid grooves in the circumference of the cylinderdischarge of the grain andchaff which are conducted to a trunk G leading from a fan case H placed below the cylinder. The bot tom may also be made of reticulated wire or wire gauze throughthe meshes of which the dirt is discharged or suffered to escape;

When the punched bottom is usedfit is designed to let the dirtpass through the perforations therein. a 1 y The revolving. cylinder or rubber D is made of cast iron with movable heads with collars which enter the cylinder being made of a corresponding diameter. Said heads projecting over or beyond the circumference .o-f the cylinder and secured by screw rods I that pass through from one head to the other. The exterior surfaces of the heads are covered with circular pieces of leather K the diameter-of the cylinder filled with wire teeth. The outer circumference ofthe cylinder is likewise covered with leather L filled with wire teeth in the form of afiat flexible band carried around the outside of the cylinder and secured by screws in such a manner that said band may be increased in diameter in order to compensate for the wear of the teeth by inserting packing between the leather band-L and the cylinder D. The shaft C is made of wrought iron which passes through the center of said cylinder and is stepped on an adjustablebridgetree B which is raised or lowered by'a screw rod M, the. upper end of the shaft turning in the aperture in the center of the top B of the stationary cylinder, having a grooved pulley N for a band leading to the driving power and for a band extending to the pulley P on the fan shaft.

The fan and fan case and trunk are made in the usual manner except where thegrain is discharged at which place it is made with two inclined planes to prevent the grain from being driven out at the discharging end of the trunk and for conducting the cleaned grain to a receiver below through an. aperture at the lower ends of said inclined planes. a i

The center of the internal surface of the head B about one third its diameter, is ribbed inthe following manner. The whole surface is divided into segments by ribs radiating. from the center to the circumference. The spaces between said radiating ribsare then ribbed in parallel lines graduso asto be drawn out in order to insert or withdraw the bridge tree B which passes. through an oblong mortise 1n sald movable leg A What I claim as my invention and which I desire to secure by Letters Patent is-.-

a 1. The manner of constructing the rubber as set forth that is to say with a flexible armed band attached by screws to the cyl- '100 ally diminishing inlength. One of the legs A of the stationary cylinder A which arecast with it is made with a dovetailed joint incler having packing inserted between the grooves in the manner and for the purpose band and cylinder for increasing the diainset forth. eter of the band in order to compensate for the wear of the teeth as above described.

2. I likewise claim constructing the stationary cylinder with grooves and the top and bottom with ears to rise and fall in said ELISI-IA S. SNYDER.

Witnesses WM. P. ELLIOT, ALBERT E. JOHNSON.

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