Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 421
THE COVER The photograph shows an inspector making ainsulation resistance test of the windings ofturbo-generator. Such tests often reveal faulty irsulation conditions in time to prevent serious burr.out. They have proved extremely valuable in pr<venting accidents to all types of rotating…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
