US174360A

US174360A - Improvement in wheat-steaming apparatus

Info

Publication number: US174360A
Authority: US
Publication date: 1876-03-07
Anticipated expiration: 1893-03-07

Description

UNITED STATEs EDWARD H. GRATIOT AND CHARLES L. GRATIOT, OF PLATTEVILLE, WlS. A

PATENT OFFICE. A

IMPROVEMENT IN WHEAT-STEIAMING APPARATUS.

Specification forming part of Letters Patent No. 174,360,- dated March.7, 1876; application filed I July 12,1875.

To all whom it may concern:

Be it known that we, EDWARD H. GRATIOT and CHARLES L. GRATIOT,bOl3l.10f Platteville,

' in the county of Grant and State of Wisconsin steams or heats the wheat to properly prepare it to be ground. The wheat passes directly from the steaming and heating apparatus to the millstopes.

()ur invention consists of two concentric coils of steam-pipes, having an annular space.

between them,throughwhich the wheat passes, as hereinafter fully described.

' The drawing is a central vertical section of our invention;

A represents the outer coil of steanrpipe. B represents the inner coil. made smaller in diameter atthe bottom than at the top, for the purpose of making the space, between the two coils gradually increase in width from the top toward the bottom, to insure the free discharge of .the grain. The two coils are braced to each other and supported in any suitable manner. 0 is the hopper on the top of the coil A, into which the grain is poured. D is a conical cover on the inside. coil, which carries the grain into the space between the two coils. E is an. outside metal casing covering the coil or pipe. F is a pipe that conducts steam into the apparatus.

G is an auxiliary pipe, which takessteam from the main supplypipeand conducts it into the inside coil,B. H is an auxiliary pipe, which conducts steam from the supply-pipe into the perforated coil I at the top of the outside coil with the wheat. the wheat, this auxiliary pipe H is closed. The wheat is then heated fromthe other coils or The inner coil is.

A. J is an auxiliary pipe, which conducts steam from the supply-pipe into the outside coil A. Each ot'these auxiliary pipes is provided with a cock, K, which can be opened and closed to control the passage of the steam through them. 'L is a pipe for the exhaust or for the exit of steam from the apparatus. Each of the coils above described is connected with this exhaust-pipe L byImeans of a short auxiliary pipe. nished with cooks for the purpose of controlling the direction and exit of the steam and exhaust. It the wheat is too dry, and it is found desirable to steam it, the auxiliary pipe H is opened. This steam is admitted into the perforated pipe,'from which it escapes through the perforations directly in contact If it is desirable to only heat pipe by radiated heat from ,the steam within the coils.

As the wheat passes down the'space between the coils of pipe, it strikes against the separate layers of pipe, and is interrupted in its passage, and turned over and stirred, and

The combination, in a wheat-steaming apparatus, of the two concentric coils of pipe A and B,as and for the purpose specified.

EDWARD H. GRATIOT. CHAS. L. GRATIOT.

' Witnesses:

HEINRICH F. BRUNS, J. L. (.lOBURN.

These auxiliar )i es are also fur- These coils of