i STEAM COAL - Clpdigital.org

THE COAL TRADE BULLETIN. 35
NEW SWING HAMMER PULVERIZER.
The manufacture of this type of pulverizer has
recently been taken up by the Jeffrey Manufacturing
Co., of Columbus, Ohio, being made under
the Schoellhorn-Allbrecht patents acquired by it.
The one illustration shows the pulverizer with its
interior or crushing parts; the others show the
sectional screen frame which is one of the special
features in this machine.
It is designed for crushing and pulverizing ma-
Sections of the Screen Frame.
terial such as coal, clay, shale, rock and other
materials. The manufacturers claim it to be the
simplest of its kind made. Strong features are
its simple beater hammer, its "V" shape bar
screening surface, its simple adjustment of the
beater arms to accommodate wear, its substantial
adjustable dust proof pillow blocks, its top feed
hopper insuring large capacity and permitting
material to be partly crushed while in suspension;
all of which go to make this machine as nearly
perfect as can be made.
The accessibility of its inner parts is also one
of its strong features. The taking off of the rear
plate and the hand hole plates on the side of the
machine make it possible to change the beater
The Swing Hammer Pulverizer Showing Interior Parts
arms as well as tbe screening surface when necessary.
The screening surface is made up in sections, so
that it is the work of but a few moments to take
out or change from one size mesh to another.
Many of these machines are in use so there is no
experimental period to be gone through with.
It is made in many sizes to suit the various requirements:
for instance, in coal the capacity
varies any where from 50 to 100 tons of coal
per hour, depending entirely upon the degree of
fineness. In pulverizing material such as rock
its capacity is any where from ten to twenty-five
tons per hour.
The Jeffrey Company make free crushing tests
for interested parties thus demonstrating before
sale what the machine is capable of doing. A
complete catalogue on this subject can be had by
addressing the manufacturer.
The Great Scott Coal Co., a new concern, has
opened a new tipple three miles below Morgantown,
W. Va.