R

TH E

AGRICULTURAL MAGAZINE.

No. LXIII.] OCTOBER, 1804.[Vor. XI.

—

PECIEIGCATION OP A PaTENT GRANTED TO JAaMEks wEI- poN, OF LITCHFIELD, ENGINEER, FOR A MII.I. vOn GRINDINGAND PULVERIZING BARK FOR TANNING.*

[WITH A PLATE AN NEXED.] O all to whom these presents shall come,&c. Now know ye, that in compliance with the said proviso, I, the said James Weldon, do hereby declare, that my said in- vention is described as follows, that is to say: To explain more fully the principles of my invention, as they may be applied to a mill for breaking, grinding, and pulverizing hatched or chiopped bark for tanning and other uses. For breaking, grinding, and pulverizing wood and other hard substances, and for grinding of apples. I have annexed a drawing, which the tollowing description is intended to elu- cidate. A, is a piece of timber, connected to the sides of the mill-house to receive the upper gudgeon of the shaft. B, an iron or metal plate, in which the gudgeon is to work. C, the upper gudgeon, let into the body of the shaft, as shewn by the dotted lines. D, the shaft, which may be of an octan- gular or any other form. E, the lever or shaft, to which the power for working the mill is to be applied, and which may be continued to the length ne Lessary for obtaining sufficient force. F, a cylindrical body, forming the internal part of the mill, which may be composed of cast or wrought iron, or any other proper materials, and may bé solid or hollow as shewn by the dotted lines on the drawing. G, the upper, or break- ing-teeth; which may be extendedl higher, as may be found necessary for the different Purposes for which the mill is in- tended. H, the lower, inner or grinding teeth. I, the hol- low external cylinder, containing, on the outside, the outer grinding teeth; this cyfinder may be composed of the saine materials as the inner cylindrical body, and may be secured by strap-bolts, or other Proper fastenings, to the Posts, QQ, of the supporting-frame. K, the lower gudgeon, secured to theshaft, as the upper gudgeon. 1., the lron, brass, or other metalic step, let solid into the ubper cross-rail R, for the

Purpose of preventing any lateral motion in the lower gud-

geon. M, the regulating screw, Passed through the nut N * In our next will be given another Specification on a discovery for the

same object, with an explanation of the advantages of each respectively

Ag. Mag. Vol. 11. IHIh 1