When boilers are fed in front, and are
blown off through the same pipe, the collection of mud or sediment in
the rear end should be often removed. Nearly all smoke may be consumed
without special apparatus, by attending with a little common sense to
a few simple rules. Suppose we have a battery of boilers, and "soft
coal" is the fuel. Go to the first boiler, shut the damper nearly up,
and fire up one-half of the furnace, close the door, open damper, and
go to the next boiler and repeat the firing. By this method nearly,
if not quite, all the smoke will be consumed. A coiled spring inserted
between engine and machinery is highly beneficial where extreme
regularity of power is required. It is well known that a steam engine,
in order to govern itself, must run too fast and too slow in order
to close or open its valves; hence an irregularity of power is
unavoidable.
A "Paste" Metal Polish for Cleaning and Polishing Brass.--Oxalic acid
1 part, iron peroxide 15 parts, powdered rottenstone 20 parts, palm
oil 60 parts, petrolatum 4 parts. See that solids are thoroughly
pulverized and sifted, then add and thoroughly incorporate oil and
petrolatum.
Cough Candy or Troches.--Tincture of squills 2 ounces,
camphorated tincture of opium and tincture of tolu of each 1/4 ounce,
wine of ipecac 1/2 ounce, oil of gautheria 4 drops, sassafras 3 drops,
and of anise seed oil 2 drops. The above mixture is to be put into 5
pounds of candy which is just ready to take from the fire; continue
the boiling a little longer, so as to form into sticks.
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