Means for indicating consecutively positions of pistons or cranks of internal-combustion engines in combination with pressure indicators

Full Title

Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid > Details or accessories > Means for indicating consecutively positions of pistons or cranks of internal-combustion engines in combination with pressure indicators