Steam engine indicator in its box. This portable instrument was used to measure the cylinder pressure and piston movement in a steam engine. This information could be used to calculate horsepower ratings as well as to diagnose mechanical problems. This indicator was manufactured by The Crosby Steam Gauge and Valve Company | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / MARK SYKES |
Taille de l’image : | 3919 px × 4687 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |