i STEAM COAL - Clpdigital.org

ull ring; 123, piston rod and nut; 124, body
piece; 125, piston rod, stuffing box gland; 126,
piston rod, stuffing box bottom; 127, piston rod,
stuffing box cap; 128, piston rod, stuffing box
thimble; 129, water cylinder; 130, water cylinder
cover; 131, water cylinder bonnet; 132, water
piston head; 133, piston head; 134, water piston
follower; 135, water piston follower; 136. water
valve; 137, water valve seat; 138, water valve
guard; 139, water valve stem; 140, water valve
spring; 141, water valve stem plug; 142, water
valve stem plug; 143, air chamber, commonly
termed acorn.
The Cameron sinking pump is sectionalized,
when required, as shown in illustration No. 4,
and in the Cameron regular vertical plunger
pump built in sections, and is known as the
Sierras pattern, which, with the mountain pattern,
has found its way on mule-back (See Fig. 5) and
even more primitive modes of transportation, over
the passes of the Cascade range, the Sierras,
THE COAL TRADE BULLETIN. 31
Fig. 5—A Burro Baggage Train Carrying Pumps.
and other mining regions in Central and South
America.
The Cameron regular vertical plunger sinking
pump is of simple design, strongly built, certain
in operation, capable of handling gritty water,
requires little attention, and above all, will stand
the roughest kind of treatment. It has no outside
valve gear, arms ori levers to be bent or
broken off, and consequently suffers little damage
from collision with the walls of the mine shaft,
and is not likely to be injured from the explosion
of blasts; its exhaust cut-off permits it to be
operated as fast as steam will drive it, with an
irregular or intermittent supply of water, or even
when the water fails entirely, without danger of
the piston striking the heads and with little injury
to the valves. Unlike some inside valve
movements, the Cameron steam end is not delicate
nor complicated; but, being simple and reliable,
it is well suited for service in a mine where the
attention of a skilled engineer is seldom available.
Fig. 6—Pipe Pattern Plunger Station Pump. Capacity 50(1,0110 (Jallons a Day.
Rocky and other mountains of the United States,
as well as those of Mexico, Columbia, Peru, Chili
It takes up little room in the shaft and will work
in any position. It is packed from the outside