Chapter LXXII: Section 83: Starting Valves

The valves used for starting steam and other engines are usually merely of the ordinary screw down or sliding types. See Section 89.

For starting and controlling all other forms of reciprocating cylinder
motors, such as hydraulic lifting cylinders and presses for all
purposes, the ordinary slide valve with either two or three ports is
the common device; also the ordinary three or four way cock. See