US40313A - Improvement in flour and grain elevators - Google Patents

Description

UNITED- STATES PATENT OFFICE.

HENRY STANLEY, OF ST. JOHNSBURY, VERMONT, ASSIGNOR T0 STANLEY St TARBLE.

IMPROVEMENT |N FLOUP. AND GRAIN sLEvAi-oas.

Specification forming part of Letters Patent No. 40,313, dated October 13, 1863.

To all whom it may concern:

Be it known that I,.HENRY STANLEY, of St. J ohnsbury, in the county of Caledonia and State of Vermont, have invented a new and Improved Mode of Elevating, Conveying, Cooling, and Airing Flour, Meal, Grain, Src.; and I do hereby declare the following to be ,a full and exact description of the same, reference being had to the accompanying drawings, making part ot' this speciiieation, in which- Figure l is a perspective view of the interior of a mill, illustrating the application of my invention; and Fig. 2 is an end eleva-tion thereof. l

This invention consists, first, in devices for elevating and conveying deur, meal, grain, 8vo., by the pressure of the atmosphere, which is caused to exert 'the requisite propelling force by use in connection: with arret-ary f an,

as will Vbe hereinafter explained; second, in an improved reservoir or receiver for cooling and airing said flour, Ste.

In order that others skilled in the art to which my invention appertains may be ena-A bled to fully understand and use the same, I will proceed to describe its construction and operation.'

In Fig. l ofthe accompanying drawings, A may represent a curb, which covers the millstones, and B a pulley upon the lower end of the spindle, upon which the runnerstone` is mounted and rotated. y

E represents a cylindrical box or casing, in which a rotary fan is adapted to operate.

F is a tube or trough for conveying the ileur or meal to the fan-casing E, iutowhich it is deposited through a suitable aperture.

G G may represent perforations for supplying air to theinterior of the casing E.

H H H is a pipe or tube for conducting the i-our fromf'the fan to the receiver or reservoir` .I I I. Upon this reservoir is erected aframe, J J J J J, over which Aa covering of gauze or analogous material is secured, for the purposel flows from the under side of the receiver I to the bolt L.

In Fig 2 is represented a heater or jolter, 'composed of jointed arms N N N N', the latter of which is pivoted to the Hoor of the mill and caused to oscillate when the mill is going, so as to operate the striking-arm of the beater by a pin projeetin g from the pulley S, through, which motion is communicated to the bolt L and a spiral spring, attached at one end tothe upper end of the vertical arm N and at the other, near the footofa standard, P, ri singfrom the door of the mill. The upper horizontal arm, N, works through a corresponding aperture in the standard P.

Motion is communicated from the pulley l.

' to' which the fan is attached;

0 is a vertical shaft provided with a pulley near its upper and lower end, respectively, through the medium of which rotation is imparted to the bolt L by bands Q and It.

' Operation Power being applied to the shaft of the runnerstone, the ilour tlous through the tube F into the interior of the easing E, whence it is forced up the pipe or tube H- by the fan within said casing, and is received into the'reservoir I. The air, which the action ot' the ,fan condenses, then assumes its Voriginal expanded state and i passes through the gauze covering of the frame J, while the liour remains in the reservoir I a sufficient length of time to be cooled, aired, and `otherwise benefited by the action ot' the atmosphere, tliegauze covering ot' the frame J admitting a free circulation ot' air to promote this object. Theblast generated by the fan is assisted in the elevation ot' the flour by.' the pressure of the atmosphere, consequent upon the partial vacuum created by the successive revolutions of the fan. By-the combined action of these two forces the iiour, meal, grain, or other article to be treated may be elevated or conveyed to the receiver or other depository with the greatest possible celerity. Each revolution of the pulley S is followed by a stroke from the upper horizontal arm, N, of the beater 'against the reeei ver l which prevents-the iiour from clogging thereimand causes it to flow regularly into the bolt L.

. Having thus described my invention, tlic yfollowing is what I claim as new therein and ducting-tubes F and H, rotary fan, and casing E', tlie receiver I J M, operated as described, and partially covered with gauze or other porous material, for cooling and Aairing the article being treated previous to passing into the bolt L.

' HENRY STANLEY.

Witnesses: Y HELEN A. TARBLE, WM. BELL

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