USRE457E - Improvement in seed-drills - Google Patents

Description

1. SELBY.l

Grain Drill.

. ,Na 457i? A Reissue'd Apr. 21. 1857.

MPEERS. FHDTO-LITHOGRAPHER, WASHINGTON. D c.

UNITED STATES JAMES SELBY, OF LANCASTER, OHIO.

lMPRO/EMENT' IN SEED-DRILLS.

Specification forming part of Letters Patent No. 13,105, dated June 19, 1855; Reissue No. 457', dated April 21, 1857.

Tp all. whom it may concern:

Be it known that I, JAMES SELBY, of Lancaster, in the county of Fairfield and State of Ohio, have invented a new and Improved Seed- Drill; and I do herebydeclare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specilcation, in which- Figure 1 is a back view ot'niy-im provement. Fig. 2 is a transverse vertical section of the same, the plane of section being through the center. Fig. 3 is a detached view ot' the adjustable crank and one of the connecting-rods and sliding har. Fig. et is a plan or' top view of a portion of the hopper. Fig. 5 is a detached view of one ot' the transverse slides underneath the hopper. Fig. 6 is a transverse section of the hopper.

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

The nature ot' my invention consists in the peculiar means or device employed for distribating the seed, said means or device being arranged and operated as will be hereinafter fully shown and described.

To enable others fully skilled in the art to understand and construct my invention, lwill proceed to describe it..

The general form of the drillis similar to many in use. A rectangular frame, A, is supported' by two wheels, B B, the axle U of the wheels extending across the fraaie and working in suitable bearings thereon.

D is the hopper, ot' the usual form, equal in length to the width ofthe frame, as shown 'in Fig. 1, the hopper being supported by metallic rods or bars o, which are attached to the frame so as to leave a suitable space between the bottom of the hopper and the frame.

To the under surface ot' the hottomot1 the hopper D there are attached two plates, b b, one at each side, (see Figs. 2 and 6,) on which two reciprocating slides, E, work. The inner ends of the slides meet at the center ofthe hopper, which is provided with a partition. The slides E have elliptical-shaped apertures c made through them, as shown clearly in Figs. 4 and 5, the apertures being made through the slides in pairsthat is, two near togetherthe end of one overlapping or passing the end of the adjoining one, and a requisite space or dis- Abar at the proper point.

tance is allowed between the pairs ofapertures. (See Fig. 4.) Between the pairs of aperturesthat is, between each twoforming a paiethere is placed a vertical pin, d. (Shown in Figs. 2, 4t, and 6.)

The bottom ot' the hopper D is perforated 4with rectangular openings e, through which the pins dproject, the apertures cin the slides being underneath the openings c. Underneath the apertures cin the slides E there are placed transverse slides f, which are of unequal breadths, as shown in Figs. 4. and 5; or they may be of regular taper form. These slidesf are ltted in recesses in the bottom edges of the hopper and restor slideupon the plates b b, the slides being` secured at desired points by hook'sg, (see Fig. 1,) which are. attached to the back side of the hopper, the points ofthe hooks passing through holes hin the slidesf. (See Figs. 4 and 5.) The use of this slide is t-o enlarge or contract by its proper adjust ment the openings c, and thus regulate the quantity of seed discharged. The same may be done by other' equivalent contrivances attached underneath to the bottom of the hopper.

On the axle O of the wheels B B there is attached a bevel-wheel, F, which gears into a bevel-pinion, G, at one 'end of a small shaft,`

H. underneath the hopper D. (See Fig. 2.) rEhe opposite end ot' the shaft H has a slot, i, made through it,in whicha small bar,j, is tted and secured therein at the desired point or distance by a set-screw, It'. (See Fig. 3.) To the outer end of this barj two connecting-rods, l l, are attached, which rods are connected to the slides E E, one to each. (See Fig. 1.)

Underneath the hopper D there are attached theusual conveyingtubes, I, as shown in Fig. 1. As the machine is drawn along, the wheels F G rotate the small shaft H, and the barj, which is a crank, ot' course operates the rods ll, and a reciprocating motion is given the slides E, andthe stroke may be made greater or less by adjusting the bar) farther in or out from the s-hat't H, the set-screw k securing said The seed in the hopper D passes through the openings e and through the apertures c in the slides E into the tops of the couveyingtubes I. The slides j' regulate the quantity of seed discharged according'as they are placed underneath the apertures c. For instance, if the narrow parts are underneath the apertures there is yconsiderable space allowed for the escape of seed, and the space is contracted if the broader portions are underneath the apertures. The slides are secured at the proper points by the hooks g, and instead of being;` formed with portions of different breadths they may be of a regular taper form. The elliptical form of the apertures c side by side, or their ends passing each other, prevent the crushing of the seed or the breaking of the same against the sides or edges of the openings c in the bottom ofthe hopper, and the pins d stir or agitate the seed and prevent it from clogging in the openings and apertures. l

Having thus described my invention, what I claim as neiy, and desire to secure by Letters Patent, is-' The regulatingat pleasure the quantity of seen discharged by means of the transverse slides f or their equivalent, in combination with the reciprocetngslides E, asherein shown and,described.

JAMES SELBY.

Attest:

T. EWING, G. STEINMAN.

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