US641598A - Grain-conveyer. - Google Patents

Description

No. 64l,598. Patefited Jan. l6, I900. G. E. MAHAN, A. FITZBDY & R. 0BR. GRAIN CUNVEYER.

(Application filed Mar. 11, 1899.)

(No Model.)

INVENTOHS A TTOHNE Y NlTED STATES PATENT FFICE.

GEORGE E. MAIIAN, ALFRED FITZROY, AND ROBERT ORR, OF NEW YORK, N. Y.; SAID FITZROY ASSIGNOR TO SAID MAHAN AND ORR.

GRAIN-CONVEYER.

SPECIFICATION forming part of Letters Patent No. 641,598, dated January 16, 1900. Application filed March 11,1899. gerial No. 708,759. (No model.)

To ctZZ whom it may concern.-

Be it known that we, GEORGE E. MAI-IAN, ALFRED FITZROY, and ROBERT ORR, citizens of the United States, residing in the borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented certainnew and useful Improvements in Grain-Oonveyers; and we 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.

Our invention relates to grain-conveyors; and it consists, essentially, of a tube or cylinder provided with a hopper or receiver at one end and a discharge-nozzle at the other end, and a system of air ducts or pipes so arranged that the grain or other substance is forced through the conveyer and discharged at the nozzle end.

The invention further consists of the general construction and combination of the several parts, as will be hereinafter more fully described, and particularly pointed out in the claims.

The principal object of the invention is to provide a device that may be readily attached to the discharge end of an ordinary grain-conveyer, particularly that class of conveyors or chutes designed for loading vessels orcars and used to convey the grain to any part of the hold of a vessel or a railroad-car, so that the grain may be evenly and uniformly distributed throughout the vessels hold or car, thereby keeping the cargo trimmed during the entire process of loading, and thus obviate the necessity of trimming by hand,which is usually accomplished by shoveling.

Other objects of the invention will become apparent on a more complete description of the device.

These objects are attained by means of the mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a top plan view of our improved grain-conveyer, the tube and nozzle partly broken away to show the internal arrangement of the air ducts or pipes; Fig. 2, a side elevation of the same; Fig. 3, a plan view of the lower air-distributing ring; Fig. 4, a similar view of the upper air-distributing ring, and Fig. 5 a modified form of air duct or pipe.

Referring to the several views, the letter F indicates a conveyer tube or cylinder, preferably made tapering, provided with a hopper O at the upper end and with a nozzle G at the lower end. Situated at the junction of the hopper with the upper end of the conveyer-tube is a tubular ring B, which is provided with a series of perforations B, for a purpose to be hereinafter described. At tached to the upper end of the nozzle G in any suitable manner is a tubular ring A, of smaller diameter than the ring B, provided with perforations A, openinginto the nozzle, the purpose of which will be presently explained. The nozzle G is provided with a collar G, into which the end of the conveyertube is received.

The letter I indicates an air-supply pipe, to which is connected branch pipes E E. These pipes extend down to the lower ring A, to which they are suitably connected, as shown in Figs. 1 and 2. These pipes are also connected with the ring B by means of short couplings b. Extending from the supplypipe down through the hopper and into the conveyer-tube is a pipe D, having a closed end provided with small perforations.

In operating our invention the hopper end of the conveyor is placed directly under the discharge end of the ordinary conveyer or chute, to which it may be attached in any suitable manner, preferably by means of a suitable hanger, which will permit of the lower or outer end being turned in any desired direction. The supply-pipe I is connected to any suitable compressed-air source of supply. As the grain falls into the hopper from the ordinary chute it will be blown or carried through the conveyer-tube by the force of the air which is discharged through the perfora tions in tubular ring 13, being accelerated by the force of air discharged through the end of the pipe D. As the moving grain reaches the tubular ring A the force of the air-jets coming through the perforations A will discharge the grain rapidly through the nozzle G to the desired point.

It will be understood that grain may be conveyed and deposited an indefinite distance from the source of supply by increasing the length of the conveyer-tube and the number of perforated tubular rings, and it will be also understood that these rings may be provided with air-discharge nipples or tubes instead of the perforations B and A.

Various modifications or changes may be made without departing from the spirit of our invention or sacrificing the principle thereof-for instance, the central air pipe or conduit D may be reduced in diameter at one or more points of its length, as at 7i, and provided with air-discharge outlets h. By thus constructing the central conduit the travel of the grain will be greatly accelerated throughout the entire length of the conveyer.

One of the advantages of our conveyer is that in the transmission of the grain therethrough the grain is cooled and all animal life, such as weevils and the like, is destroyed, and another advantage is that any chemical or other powdered or granular substance of a weight or density which will permit of it being expelled or projected through the atmos phere may be transmitted with or without the grain.

Having thus fully described our invention, what we claim, and desire to secure by Letters Patent, is-

1. In a grain-conveyer, the combination, with asuitable conveyer tube or cylinder having a grain-receiving inlet and a grain-dis charge outlet, of an air-supply pipe, a central air-discharge conduit, and upper and lower annular air-discharge conduits, whereby the inflowing grain is caused to be transmitted rapidly through the conveyer-tube by the force of the air.

2. In a grain-conveyer, the combination, with a conveyer tube or cylinder having a grain-receiving inlet and a grain-discharge outlet, of upper and lower annular air-discharge conduits, a central air-discharge conduit, an air-supply pipe, and air-conduits connecting the air-discharge conduits with the supply-pipe.

3. In a grain-conveyer, the combination, with a conveyer tube or cylinder provided with a grain-receiving hopper and a graindischarge outlet, of an annular air-discharge conduit located between the hopper and upper end of the conveyer-tube, and a similar airdischarge conduit located between the discharge-outlet and the lower end of said conveyer-tube, an air-supply pipe having branches leading therefrom and connected with the two annular conduits, and a central air-discharge conduit connected with the supply-pipe.

4. In a grain-conveyer, the combination, with a conveyer tube or cylinder having a grain-receiving inlet and a grain-discharge outlet, of upper and lower air-conduits, a central air-conduit, reduced at one or more points and provided with air-outlets at the reduced points, an air-supply pipe, and connections between the supply-pipe and air-conduits, whereby air may be forced through said conduits and discharged to force the grain through the conveyer-tube.

5. In a grain-conveyer, the combination, with a conveyer tube or cylinder provided with a receiving-hopper and a discharge-out let, of an air-supply pipe having two side branches and a central branch extending into the conveyer-tube, upper and lower air-discharge conduits, and means connecting the side branches with the upper and lower conduits.

In testimony whereof we affix our signatures in the presence of two witnesses.

GEORGE E. MAI'IAN. ALFRED FI'IZROY. ROBERT ORR. Vitnesses:

ROBERT P. ORR,- CHRISTOPHER JORDAN.

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