UNIVERSAL GRINDER.

These Grinders consist of a series of disks with beveled edges locked

together on a shaft. They revolve towards each other at different rates

of speed. They combine strength and durability. No friction; hence no

heat. They will grind all kinds of Grain, also Quartz Rocks, Ores,

Gypsum, Brimstone Shavings, Shells, Brick Clay, Cork, Rubber, Bone, Oil

Cake, Flax Seed, Cotton Seed, and any number of articles in use by

manufacturers and farmers. These Grinders are disposed of on reasonable

terms. Send for Illustrated Catalogue with terms. NEWELL & CHAPIN, foot

of West 19th Street, New York.

* * * * *

[Illustration]

23 Sizes of Direct, 24 Sizes of Boilers, and the best Indirect

Radiation.

Send for circulars.

Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 124 / 165 题