A diver's pump
is a kind of pneumatic mechanism
used to provide divers in standard diving dress
with air while they are underwater.
are primary based on crankshaft
that is moved by rotating of two flywheels
attached to it, and situaded on the sides of the pump. Rotary pumps can be built on two and three cylinders
Rotary pumps might be operated by at least two man. Pistons
attached to the crankshaft pushes in air through the air valves
and then through the outlet to an air hose
and at last to the diving dress
of a diver
. Cylinders, air valves and outlet for air are made from brass
for the most reliability.
are primary based on two cylinders, and operated by lifting up and down a heavy beam, with handles attached to its side, and pistons attached to it in the middle. Pistons pulls in air in cylinders through the air valves, and then through air hose to the diving dress of the diver. Cylinders, valves and outlet for air are made from brass for the most reliability.