US1254175A - Feeder for pneumatic stackers. - Google Patents

Description

G. THOMPSON.

FEEDER FOR PNEUMATIC STACKERS. APPLICATION FILED MAR. 10. I917.

LQM NE, Patelited Jan. 22,1918.

1419- 16 16b 11mm 16 g. G. THOMP50N- M. saw i 20 61mm,

GILBERT THOMPSON, OF BURNS, MONTANA.

FEEDER FOR PNEUMATIC STACKERS.

Specification of Letters Patent.

Patented Jan. 22, 1918.

Application filed March 10, 1917. Serial No. 153,912.

T 0 all whom it may concern:

Be it known that I, GILBERT THoMrsoN, a citizen of the United States, residing at Burns, in the county of Dawson, State of Montana, have invented a new and useful Feeder for Pneumatic Stackers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to a feeding device for pneumatic stackers, and has for its object to provide a novel form of endless belt construction which will receive the straw and chaff from the shoe of the threshing machine and feed it in a positive manner to the pneumatic stacker, thereby preventing accumulations of straw and chaff from clogging the machine and choking the blower, as well as interfering with the proper operation of the shoe by imposing additional weight thereon.

Further objects of the invention are to provide a positive feed mechanism for pneumatic stacker-s which is comparatively simple and inexpensive in its construction, which can be employed in connection with any conventional form of threshing machine, which has no delicate mechanism to get out of order. and which can be installed or removed without difficulty.

\Yilh these and other objects in view. the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description pro ceeds. the novel features thereof being pointed out in the appended claims.

F or a full understanding of the invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a side elevation of the rear end of a threshing machine and a portion of a pneumatic stacker, showing a feeding device constructed in accordance with the invention, portions being broken away and shown in section to illustrate more clearly the details of construction.

Fig. 2 is an enlarged top plan view of the feeding device. showing it detached from the machine, portions being broken away.

Fig. 3 is a longitudinal sectional view through a feeding device. showing a slight modification of the invention Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Referring to the drawings, which illustrate one embodiment of the invention, the reference character A designates the rear end of a threshing machine which may be of almost any conventional construction, being shown as provided with the usual straw rack l, stacker 2, and shoe 3. The pneumatic stacker which is provided for carrying away the straw and chad discharged from the machine includes a stacker-tube 4, a hopper or receiving chamber 5, and a fan chamber 6 within which a suitable blower or fan 7 is mounted. Ordinarily, the straw and chaff discharged from the shoe is force over a sheet metal plate into the receiving chamber 5 of the stacker, upon entering which it slides into fan chamber, and is forcibly driven through the stacker tube 4; by the air blast created by the blower 7. In practice, however, the straw and chaff frequently piles up and accumulates upon this sheet metal plate in such a manner as to interfere with the action of the shoe, and to choke the blower when a large quantity of straw and chaff is suddenly deposited in the receiving chamber.

In order to overcome this difficulty, I have provided a novel construction of endless belt conveyer which is especially designed for attachment to the threshing machine, and which will act in a positive manner to convey the straw and chaff from the shoe of the receiving chamber, thereby preventing the chaff from accumulating and interfering with the proper operation of the machine. The conveyer frame includes a pair of iron side bars 8 which are connected at points slightly spaced from the ends thereof by cross bars 9, the corners of this frame being connected by diagonal braces 10, so that a rigid construction is obtained. Rollers 11 are journaled between the projecting ends of the side bars 8, one of the rollers 11 being journaled within fixed bearings 1'2. while the other roller 11 is journaled within slidably mounted bearing blocks 13 which are acted upon by the springs 14. An endless belt 15 extends around the two rollers 11, and the tension in the springs 14 normally tends to move the roller 11 outwardly to take up any slack in the endless belt and ing machine. A sheet metal plate 16 is arranged Within the conveyor frame between the two reaches of the conveyer belt. One end of the plate 16 maybe returned and extended downwardly at 16 to engage one of the cross rods 9, while the other end of the plate may be bent and formed in a somewhat similar manner, as indicatedat 16", to provide a resilient arm adapted to be sprung into engagement with the opposite cross rod 9. The plate may thus be inserted Within the frame, or removed therefrom, as may be desired. One of the rollers 11 is provided with a pulley 18 by means of which power can be applied to the conveyer for driving the endless belt, the conveyer being drivenindependently of the shoe. 7

Side plates 18 are applied to the bars 8, said side plates being of a sufficient width to extend upwardly above the endless belt 7 and prevent the straw and chaff from falling over the edges thereof. The bars 8 are extended forwardly at 8 to embrace the sides of the shoe 3, and terminate in enlargements 8 which are bolted to frame members a of the threshing machine. The

rear ends of the side bars 8 are shown as provided with legs or props 20 adapted to rest upon the floor of the receiving chainher 5 of the stacker to assist in supporting the frame of the conveyer in operative DOSltion. A plate 17 is secured to the rear upe per edge of the shoe 3 and projects over the end of the conveyor to prevent straw and chaff from dropping between the shoe and the conveyer. is thus constructed independently of both thethrcshing machine and stacker, and it will be obvious that it is adapted to be used as an attachment in connection with almost The feeder attachmer" of the standard makes of threshin machines and pneumatic stackers. Instead of the canvas belt 15, a conveyer belt- 21, consisting of a series of slats, may be used, as indicated by Fig. 3. When the tight canvas belt 15 is employed there is no real need to lit the plate 16 withinthe conveyor frame, although this plate 16' is quite necessary" when a skeleton belt, such as that indicated at 21, is employed.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is 7 1. A feeder attachment" for pneumatic stackers, includingside' bars formed with extensions which are adapted to embrace and be secured to the shoe of a threshing machine prop means at the ends of the side bars for en asement with the floor of the receiving chamber of apneumatic stacker.

bars an endless conve er belt extendin around the rollers, cross rods connecting the side bars at points between the rollers and adjacent thereto, and a removable plate extending under the upper reach of the endless belt, the ends of the plate being extended downwardly and constructed to interlock yieldably with the crossrods to hold the plate in position. p e In testimony whereof I have signed name to this specification in the presence of two subscribing witnesses.

GILBERT THOMPSON.

Witnesses:

Loom GUsTiN, JOHN I. BEEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' ;Washington, D. G.

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