Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 12
rinciple upon which the apparatus is based, is the use of a reduced pressure in therotary, so that whatever the pressure iu the boilers that in the rotary shall always be con-siderably less, and thus guard against the possibility of a backward tiow of steam andliquor from it toward the… … whatever may be consid-ered necessary to properlyperform its duty in the ro-tary. Between the reduc-ing-valve and the verticalpipe connecting with ro-tary is jilaced a check-valve. It is essential thatthis check-valve should bekept clean and in goodworking order. On top ofthis vertical pipe is…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
