Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 242
soon as it did openthe flow of steam from the boiler would reduce the pressurebeneath the valve disc and the valve would close. Immediately,however, the pressure beneath the disc would rise to the pressurein the boiler and the valve would again open to release a slightamount of steam. This rapid… … Valve Seat Fig. 4. 232 THE LOCOMOTIVE. [October, the valve would soon wear out because of the hammering of thedisc on its seat. On the other hand, if the adjusting ring weremoved upward so as to restrict the steam discharge, the valvedisc would rise to a definite opening when the valve popped and…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
