USRE11548E - Conveyer - Google Patents

Description

' Reissued June 23, 1896.

GQNVEYER.

J. M. DODGE;

UNITED STATES PATENT OFFICE.

AMES M. DODGE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE AIR CONVEYOR COMPANY, OF SAME PLACE AND CAMDEN, NEW JERSEY.

CONVEYER.

srncmoa'rron forming part of Reissues. Letters Patent Np. 11,5413, ems June as, 1896. Original rt. 557,068. ama no 24, use. Application at alum nu lay n. ma. mun. mm.

5 Improvements in Conveyers, (combined suea specification.

My invention isbased on the patent granted to me on the 20th day 'of- August, 1895, No.

tion and pressure,) of which the following is Fig. 2. v

A is a tubular conveyer closed throughout its entire length with the exception of a series of openings a .at the bottom. These openings entering theconveyer through the openings will act to feed the material along the conveyer' as well as to sustain it in its travel. I B is an air-tube, in the present instance directly under the tubular conveyor A and communicating with it through the openings a, as clearly indicated in Figs. 2 and 3. One end of this tube is closed, and to the other eudis connected the fan or blower C, which is of the ordinary construction. A fan pressureblowerin the presentinstance isshown driven by belting, the fan and tube B being of such a capacity that a volume of 'air will be maintained at all times in said tube. r The opposite end of the conveyor-tube A is connected to a suction-{tube D, and this tube is connected in turn to the inlet of the fan or blower C, as indicated, so thatthe fan will rawair from the conveyor-tube and exhaust the material to be conveyed is not only subjected to the influence of the incoming air re-' leased from pressure, but is also under the influence ofthe suction apparatus, so that a closed conveyor-tube can be used instead of 545,013; and the object of my present inven-' Fig. 3 is a transverse section on the line3'3,

are inclined toward the outlet end, so that airinto the tube B, thus forming a continuous current of air in the conveyor. By this means The material in the present instance is fed from a hopper E through a neck e to the inlet end of the conveyor-tube, and this hopper may be'provi ded with a suitable valve for regulating the flow of material to the conveyer, and at the opposite end of the conveyor Am a discharge-opening a, and directly above this discharge-opening is a curved screen a. to prevent the material trom passing into the suc tiou-tube D, and this screen is. curved in the present instance over the discharge-opening a, so that it will direct the material to the discharge-opening. The lower portion of .the

screen is preferably made solid, acting as a complete check for the material.

It will be understood that other means may be provided for feeding the material to the conveyor and that a receptacle or conveyer may be used to carry the material away from the outlet.

WhileIhaveshown asingle fan-blowerused for creating the suction as well as the blast, two fans may be used, one a suction-fan and the other a pressure-fan, or other forms of blowers to create the air-current may be used without departing rrom my invention. I claimas my invention- 1. The combination of the conveyor-tube having openings in the bottom and having an f inlet and'an' ou let for the material, a tube B communicating with the conveyor through said openings, a suction-tube D connected to thedischarge end of the conveyor, and means for forcing air under pressure into the tube B and for reducing the pressurein the suctiontube D, substantially as described.

2. The combination in a conveyor-tube A,

1 having 0 nings'in the bottom and having an inlet an .outlet for the material, a pressuretube B communicating withthe conveyor through said openings, an exhaust-tube D connected to the discharge end of the conveyer-tube A and a fan connected to both tubes, substantially as described. a

In testimony whereof I ,have signed my name to this specification in the presence of two subscribing witnesses.

JAMES M. DODGE. Witnesses:

WILL. A. F. E. Bron-row.

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