US142462A

US142462A - Improvement in thrashing-machines

Info

Publication number: US142462A
Authority: US
Publication date: 1873-09-02
Anticipated expiration: 1890-09-02

Description

4Sheets--Sheet1. A. G. HAGERSTRUM. Thrash'ing-Machines. 42,462. Patented September 2,1873.

4 Sheets--Sheet 3.

A. G. HAGERSTBUM. Thrashing-MachinPs.

N0. i42,462. PatentedSeptember2J873 4 Sheets-*Siieet 4.

A". a. HAG ERSTROM. Thra s'hing-Machines. .No. 142,462. PatentedSeptember2,1873.

ANDREW e. HAGERSTROM,

PATENT OF RED WING, MINNESOTA.

IMPROVEMENT IN THRASHING-MACHINES.

Specification forming part of Letters Patent No- 142,462, dated September 2, 1873; application filed November 23, 1872 Figure 1 is a plan view of the upper side of my device as arranged for use. Fig. 2 is an elevation of the rear end of the same. Figs. 3 and 4 are elevations of opposite sides of said device. Fig. 5 is a vertical central section of the same upon a line extending from front to rear. Fig. 6 is a plan View of the upper side of a portion of the frame, showing the means employed for connecting the horse-power to or with the same; and Fig. 7 is a perspective view of said parts.

Letters of like name and kind refer to like parts in each of the figures.

My invention is designed to increase the efficiency and durability of grain-thrashers; and it consists in the relative arrangement of the beater, concave, transfercarrier, grainsieves, and fan, substantially as and for the purpose hereinafter shown. It consists, further, in the means employed for tightening the belts employed for driving the beater and the fan, substantially as is hereinafter shown and described. It consists, finally, in the means employed for connecting the framebars of the horse-power to or with theframe of the machine, substantially as and for the purpose .hereinafter specified.

In the annexed drawing, A and A represent the sills of the machine, from each of which extend vertically upward two or more posts, B, that are connected together at their upper ends by means of a top rail, 0. The sections thus constructed are connected together by means of suitable horizontal cross-barsl), and form the frame of the machine. Extending horizontally across each side of the frame, about one-third the distance from its upper edge, is a rail,- E, which extends from near the rear end of the machine forward slightly beyond its longitudinal center, the object of which rails is to furnish support for the bearings of the principal operative mechanism. J ournaled within suitable boxes g, that are secured to or upon the rails E, near the rear end of the machine, is a shaft, G, upon which is placed an open beater or breaker cylinder, H, of usual construction. Above the beater-cylinder is placed a concave, I, (constructed, preferably, of wood,) which, as seen, is composed of a series of overlapping staves, i, that are so arranged as to present each one edge toward the motion of said beater, the series of annular steps thus formed engaging with the grainstalks as they pass into the machine, and, in connection with the arms of said beater, effectually breaking the same and liberating the grain. A table, K, attached to the rear end of the machine and extending inward beyond the rear end of the concave, enables the grain to be fed inward to the breaker. Journaled upon the upper side of the rail F, near the rear end and slightly forward of the longitudinal center of the frame, are two shafts, 1, upon each of which is secured a cylinder, L, as shown. Around the cylinders L is stretched an endless belt, M, formed of a series of longitudinal strips, m, of flexible material, placed equidistant from each other, and securedin relative position by means of a series of cross-bars, m, the whole forming an open-work carrier, which, receivin g the straw from the breaker, will carry the same forward beyond the sifting devices with-' out interfering with the free downward pas sage of the grain.

In order that the contents of the carrier M may be thoroughly shaken up and all grain dislodged therefrom, two or more shafts, n, are Journaled within the sides of the frame, slightly above the shafts l, and are each provided with two cross-bars, N, which are connected together at their ends by means of suitable rods 11, the radial distance of said rods from said shafts a being greater than'thc space between the latter and the upper portion of the carrier M. As thus arranged, it will be seen, that if the shafts n are caused to revolve, each rod n, as it passes the upper vertical center, will raise the carrier M, and

give to the load of the latter a shake that will cause any adhering grain to be dislodged. A second straw carrier or elevator is formed by an endless belt, 0, which is provided with a series of cross-bars, 0, and passes around two rollers, I, one of which rollers is journaled at the lower side and longitudinal center of the frame, while the second roller is journaled at the front end and upper side of the same, the arrangement of said rollers being such as to give to said carrier an upward and forward inclination of about forty-five degrees.

Within the lower part of the frame, near its rear end, are placed the screening devices, which are constructed as follows: A shoe, Q, having the form shown in Fig. 5, is provided within its lower portion with two or more screens, It, that are arranged horizontally, in the usual manner, while at its upper side are placed two guide-boards, q, which extend outward and upward toward the end of the machine, and serve to catch the falling grain and direct it upon said screens. The shoe Q is suitably suspended from the rails F by means of straps or links S, which permit the former to move freely in a transverse direction, said motion being communicated by a disk, T, which is secured upon the end of a shaft, t, and is connected to or with said shoe by means of a pivoted anglelever, U, and two rods, a, all in the usual manner. A spout, V, provided at one end of the shoe Q, enables its contents to be discharged into a suitable receptacle. Between the shoe Q and the front end of the machine is placed a fan, W, which is suitably attached to or upon a shaft, 10, and is inclosed at its upper ends, lower and front sides, by means of a casing, X. Openings for the admission of air to the fan are provided in and through the ends of its casing, while at the rear side of the latter is left an opening, .70, for the passage of the air-blast to the screens R, the rear and front sides of the shoe Q being left open, so as to afford free ingress and egress to said blast. Directly below the rear end of the elevator O is placed a tailings receptacle or drawer, Y, which receives such grain as may pass over the screens with the chaff.

Power is applied to the machine through a shaft, Z, that is journaled within the same near the upper side and slightly forward of the longitudinal center of the frame, and is provided upon one of its projecting ends with a gear-wheel, A, that meshes with and moves a pinion, B, which is secured to or upon the corresponding end of the forward shaker-shaft a. Outside of the pinion B, upon the shaft n, is placed a band-wheel, G, from which a belt, D, extends to and around a pulley, E, that is secured upon the shaft G of the breakercylinder, and imparts motion to the same. The belt D passes over the pulley F, that is secured upon the end of the shaft t opposite to the disk T, and imparts motion to said pulley, shaft, and disk, and through the same to the screen-shoe. Upon the end of the shaft a opposite to that upon which are placed the pinion ]3 and band-wheel C is affixed a double baud wheel, G, from the inner portion of which a band, H, passes to and around a similar band-wheel, I, that is attached to the end of the second shaft, a, and causes the same to revolve. A second belt, K, passes from the outer portion of the bandavheel G to and around a corresponding double wheel, L, that is attached to the end of the forward carrier-shaft l, and, by rotating said wheel and shaft, causes the carrier-belt to be moved in the desired direction. The carrier or elevator O is operated by means of a belt, lVl, that extends from the inner portion of the double pulley or wheel L to and around a pulley, N, that is attached to the projecting end of the shaft 1) of the forward roller 1. The fan I is operated by means of a pulley, O, that is attached to the projecting end of its shaft w, and is connected by a belt, 1?, with a double pulley, Q, that is suitablyjour' naled within a lever, B, which lever is pivoted at its forward end to or upon the side of the machine in such position as to bring said pulley Q directly over the belt D. As thus arranged, by depressing the rear end of the lever It the outer portion of the pulley Q will be caused to bear upon and receive motion from the belt D, which motion is communicated through the belt P and pulley O to the fanshaft. The lever It and pulley Q operate to tighten the belt D in addition to the office above described. In order that the belts used for operating the carrier and elevator may be tightened as desired, two pulleys, s, are journaled within opposite ends of a suitable frame,

S, and the latter attached to or upon the side of the frame in such a manner and position as to bring said pulleys directly over said belts, and to enable the former to be raised .or lowered at will. The platform T, upon which the operator stands, is hinged to the rear end of the machine, so as to be capable of folding upward against the same when not in use. zontal position said platform is in part supported by means of the projecting ends of its side rails t, which engage with suitable studs or pins that extend laterally outward from the sides of the frame. A further supportis afforded by means of two brace-rods, U, which are pivoted to the sides of the machine, and, extending downward and rearward, have their hooked ends locked into suitable staples u that extend outward from the ends of the platform. The feeding-table K is connected with the frame in a like manner to that described, and is supported in horizontal position by means of two brace-rods, W, arranged as in case of the platform. A supplementary table, X, is placed at each end of the table K, when desired, and is connected therewith by means of two or more studs or pins which project downward from the end and lower side of the former into corresponding openings in the latter. A hook, Y, pivoted upon the frame side and engaging with the upper side and inner corner of the table X, holds the latter in engagement with the principal table, while When turned downward to a hori-' the brace-rod W, swung outward and engaging with a pin or staple, w, attached to the forward edge of said table X, furnishes the necessary support for the outer end of the same. The cover Z of the frame is made in suitable sections and hinged at such points as are desired, so as to render the interiorof the machine accessible.

Th'e horse-power intended for use with this machine has its upper andlower portions connected to or with the machine-frame, so as to insure their relative positions, by the follow-' ing-described means: The frame-bars A of said horsepower are each provided with a metal rod, B, which is securely attached to or upon one side of the same, and, extending forward beyond its end, is provided with a short arm, b, that extends vertically downward. When in position, the end of the bar A is placed against the sill or rail of the frame of the machine, with the hooked end I) of the rod 13" extending into a recess, 0, that is formed within said sill or rail, and engaging with one end of a metal link, D", which rests within and extends through a corresponding transverse slot formed within the same. Within the opposite or inner end of the link D is placedfa wedge-shaped key, E, which, when driven downward, draws said link inward so as to confine the hooked rod B and its bar A closely against the sill or rail. By removing the key E" the link D is loosened so as to permit it to be sufficient] y withdrawn to liberate the hooked rod and permit its removal.

Having thus fully set forth the nature and merits of my invention, what I claim as new 1s- 1. The relative arrangement of the beater, concave, transfercarrier, grainsieves, and fan, when constructed to operate substantially as and for the purpose shown.

2. The pulley Q, journaled within the pivoted lever B, and, in connection with said lever, combined with the frame of the machine and with the beater and fan-belts, substantially as and for the purpose shown and described.

3. The means employed for connecting the horse-power frame bars A to or withthe frame of the machine, consisting of the hooked rods B and b, the link D, and the key E, when the same are combined with said parts substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 25th day of April, 1872. u

A. G. HAGERSTBOM.

Witnesses:

GEo. S. PRINDLE, EDM. F. BROWN.