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A NEW ELECTRIC FORGE BLOWER.
The advantages of the electric forge blower over
the hand blower or bellows need hardly be mentioned.
It saves space as it is- so small it can be
put under the forge or any other place out of the
way. It is started and stopped by a switch, which
latter can be located wherever it will be handy to
reach from the forge or anvil. The blast produced
is strong and positive. The fire builds up quicker
and better than with a bellows or hand blower.
More can be done in the same time, as it requires
No. 00 No. 0 No. 1
1 Heavy Fire 2 Heavy Fire
1 Light 2 Medium Fires 4 Medium Fires
Fire 3 Light Fires 5 Light Fires
no attention; while the iron is heating, other work
can be prepared or finished.
The latest development in electric forge blowers
is an adaptation of the already famous "Sirocco"
blower to that service. The "Sirocco" electric
forge blower is truly the little blower with a big
purpose. The three sizes shown in the illustration,
figure 1, are 6%, 9% an d 1214 inches respectively,
the largest one being capable of caring for
five fires.
Fig. 2. Sirocco (Patented) Fan Wheel.
Because of the high mechanical efficiency of the
for single light fire, uses less than half the current
consumed by an ordinary electric lamp. The
larger sizes are relatively of equal efficiency. Comparing
these blowers with a hand blower or belnew
"Sirocco" turbine type wheel, figure 2, the
electric current consumption is so small as to be
almost insignificant. The smaller size, suitable
THE COAL TRADE BULLETIN. 43
lows, it will be noted that there are no belts, no
levers, no gears, no pulleys, no cranks, no springs.
The "Sirocco" patented wheel being set-screwed
to the motor shaft, there are only two bearings on
the entire machine.
A few of the many advantages of "Sirocco" elec-
Fig. 3. One of the Sirocco Electric Forge Blowers
In Operation.
trie forge blowers over all other electric forge blowers
are: Higher mechanical efficiency, hence
smaller current consumption. Quiet running—
the "howl" of the ordinary blower being almost
unbearable. Larger volume of air at ample pressure
to overcome resistance of tuyere and fire.
Quicker and hotter fires because of perfect combustion
of fuel in fire bed. Smoother operation
due to extremely small diameter of runner.
The method of installation is shown in figure 3.
These blowers are manufactured by the American
Blower Co. of Detroit, Mich.
OHIO WILL HAVE MINIATURE
MINE IN THE CAPITOL.
In the basement of the state house, at Columbus,
O., under the office of the state mine inspector,
the state of Ohio is going to build a miniature
mine, where its mine experts' will produce mine
explosions and rescue victims of black damp by
use of the latest mine rescuing devices.
The recent legislature appropriated $2,500 for
the mine rescue work. The equipment already has
been ordered by Chief Mine Inspector George Harrison.
The Ohio apparatus will be kept in Columbus
and can be shipped in trunks to scenes of mine
explosions.
An ordinance has been introduced at Wilkes-
Barre, Pa., requiring mining companies to equip
their breakers within the city limits with devices
for preventing the escape of coal dust in quantitieslarge
enough to cause annoyance to nearby residents
or those passing through the streets.