THE

AGRICULTURAL MAGAZINE.

No. LXIV.] NOVEMBER, 1804.[ V011-325610

JAMES WELDON, FOR HIS FURTHER NEWLY INVENT ED MACHINE,'OR MILL FOR GRINDING BARK, AND VARIOUS.OTHER ARTICLES, FOR WHICH:HE OBTAIN» ED FORMER. LETTERS PATENT, AND: WHICH MA- CHINE,. OR, MILL.SO, IMPROYED,:;MAY BE APPLIED TO SEVERAL OTHER USEFUL„PURPOSES.

TO all to whom theſe preſents hall Come,&c. Now know ye, that in compliance with the ſaid proviſo, I, the

ſaid James Weidon do hereby declare my invention of certain. new improvements on my ſaid machine, or mill for grinding bark, ſor tanners, that the. ſame Improvemehts extend to all kinds of cylindrical ſteel mills, for tbe purpoſe of grinding wheat, malt, or any other kind of grain, and may be applied.to varlous other„ſeful purpoſes. I deſcribe the ſame as. follows:=- my former method of conſtru&ing mills for grinding bark,-is chiefly ofcaft iron, the teeth or cutters.thereof caſt with them, and the method of keeping. them ſharp, or: renewing their teeth, is-to chip or cut them with a hammer-and chifſel; and the method of making and conftruJing what are commonly called Steel mills for“ the purpoſe of grinding-malt,-&c. are chießy made of malleable iron, caſe hardened, the teeth of whicd.are cut, or raiſed out of the ſolid, by means of chiſiels and files, and are kept ſharp by the ſame method. Butin order to avoid theſe dificulties, and make them more durable and laſting, and that the uſer of ſuch mills or machines may be able to Mharpen his own mill or machine, and keep the ſame in repair without ſending them to the maker,:T have con- ſtructed them witb looſe or moveable teeth which may be taken out at any time, and by grinding them on a common grindingſtone, may be ſharpened and kept in order, or by eplacing the teeth,(hould they wear out; the machine will then be as good as new, and to ſhew the nature of my in- vention, I have added drawings on the oppoſite ſide hercof, but as the principle of the machine, or mill for grinding| ark, is

the ſame as that of my former patent z it is not neceſlary t&

deſcribe any more of it than the manner in which the looſe

teeth are to be fixed, which may be the ſame as that deſcribe4

in the drawing for a corn mill, or by. any other method I

may think mott proper. Figure I. repreſents the Jifferent

parts of a mill for grinding bark, corn,&c. and the manner in which it is conſtru&ted. A, isa hopper, made of wood, tin, or ſheet iron, which receives the Corn; or any thing that is te

4g. Mag. Yol. 11. Ss