US13476A - Daniel s - Google Patents

Description

Patented Aug. 21, 1855.

Fay I 2 Sheets-Sheet 2.

Patented Aug. 21. 1855.

NIT SS FGE.

DANIEL S. JAMES, OF NEXV MARKET, "IRGINIA, ASSIGNOR TO HIMSELF, J. B. WHITE, AND J. W. MCINTYRE.

CORN AND COB MILL.

Specification of Letters Patent No. 13,476, dated August 21, 1855.

To all whom, 2'2, may concern:

Be it known that I, DANIEL S. JAMES, of New Market, Shenandoah county, and State of Virginia, have invented a new and useful Improvement in Corn and Cob Crushers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same; reference being had to the annexed drawing, forming part of this specification in which Figure l is an elevation of the crusher with a portion of shell broken out, showing the surface of the inner grinder. Fig. 2 is a vertical section through axis of main shaft on line w a, Fig. 3. Fig. 3 is a horizontal section on line y g Fig. 2 showing relative position of cogged rim and pinions. Fig. 4 is a horizontal section on line a: m, Fig. 2.

Similar characters of reference denote the same part.

The invention here considered refers to those corn and cob crushers in which a simultaneous rotation of both shell and bur is produced by power applied directly to the shell, its object being the diminution of friction and the consequent facility of operating the machine.

It consists in the suspension of the rotary concave or shell upon a shoulder of the main spindle by an arch crossing the top of the shell, the said shell being kept in position and communicating rotation to the burr by a connection at bottom with the bur, through a cogged rim and pinions as will be set forth. The shell being by this arrangement enabled to rotate with no other vertical support than the aforesaid shoulder, thereby diminishing to a great extent the friction which necessarily obtains in other modes of supporting the shell when its rotation gives motion to the bur.

The details of construction and operation will readily be understood from the following description and reference to the drawing, in which the several parts are thus represented.

A, concave or shell, supported upon shoulder a of spindle by arch Z), and steadied at bottom by cogged rim R; B, interior grinding surface of hell form, supported by cross arms 0 on the shoulder (Z of sliding hollow shaft 6, and rotating with said hollow shaft by reason of its octagon cross section as shown in Fig. 4; C, pinion on hollow shaft 6 supported by lever L, by the movement of which the position of grinding surface B is governed; D D, ainions turning on spindles f f, and meshing with rim R and pinion 0; they rest on the stand S and have no motion of translation; R, cogged rim, held concentric with base of shell A by screws g, and having an opening at junction of arms h passing over hollow shaft 6, which below shoulder (Z has a circular cross section; E, main spindle, stepped at e, supporting shell A, and possessing no rotation; L, lever supporting and regulating bell B, the teeth of a ratchet r holding the lever in any desired position; H, hopper fastened to the shell and rotating with it; G, stand bolted to the bed I; J, levers fastened to the shell to which the power is applied.

The revolution of the shell A imparts a rotation to the pinion C in the opposite direction with a velocity depending on the number of cogs on the rim and pinion; the ratio shown in the drawing is one to three. The hollow shaft 6 secured to pinion C carries with it the inner grinder B, so that the substance to be ground passes between the roughened surfaces A and B which rotate in opposite directions; the distance between them being determined by the lever L. This lever may have on it a movable weight to give the required position to the bell B. During this double rotation of shell and bur, the shell is supported vertically on the shoulder of the main shaft, between which and the arch I) there is comparatively but little friction, owing to the small extent of the surfaces in contact, which are reduced to the smallest practical limit; the bottom connection with the bur preserving the shell accurately in position. Thus giving all the advantage of the double rotation with but little greater expenditure of power than would be required to rotate the bur alone. This advantage, due to the mode of hanging the shell and connecting it at bottom with the bur, by cogged rim and pinions as described, renders the invention of considerable importance in the construction of machines of this character.

I make no claim to any of the parts of the machine separately considered; neither do I claim the simultaneous rotation of shell and 10 by friction is greatly diminished and consequent facility of operation attained as hereinbefore set forth.

In testimony whereof, I have hereunto signed my name before tWo subscribing Witnesses.

DANIEL S. JAMES.

Witnesses GEO. PATTEN, JOHN L. SMITH.

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