. The steam engine indicator and its appliances. Being a comprehensive treatise for the use of constructing, erecting and operating engineers, superintendents, master mechanics, and students ... with many illustrations, rules, tables, and examples for obtaining the best results in the economical operation of all classes of steam, gas and ammonia engines ... Its correct use, management and care, derived from the author's practical and professional experience .. . requirements necessary,and provide means for indicating pressures ranging from 300to 600, or more pounds pressure per square inch. Th
. The steam engine indicator and its appliances. Being a comprehensive treatise for the use of constructing, erecting and operating engineers, superintendents, master mechanics, and students ... with many illustrations, rules, tables, and examples for obtaining the best results in the economical operation of all classes of steam, gas and ammonia engines ... Its correct use, management and care, derived from the author's practical and professional experience .. . requirements necessary,and provide means for indicating pressures ranging from 300to 600, or more pounds pressure per square inch. This is accomplished by making provision in the construc-tion of the instrument, whereby a piston can be used of a small-er size than the piston of one-half square inch in area, as ord-inarily used in most makes of indicators. This smaller piston is usually made one-quarter inch squarein area, or one-half that of the former,and which when in use results indoubling the readings or amount ofpressure, as when used with thesame denomination of spring in con-nection with the larger piston. represents the manner of con-struction in combining the half andquarter inch area piston in one in-strument, as applied to the TaborIndicator, whereby the use of theone-half inch piston for low pres-sures, or in which the quarter inchpiston may be used -for the very highFlG- 114- pressures often attained in some oil and gas engines. Either of these pistons may be used. 2 2,6 Steam Engine Indicator independently as desired, without any change whatever eitherin the spring or any part of the instrument. In the illustration the half inch piston is not shown; butinstead the quarter inch piston is represented attached to thespring in position for operation. The body A. of the instrument is shown partly in sectionin order that the location of the parts may be readily is the piston cylinder in which the half inch piston works,and which is srcewed at its lower end into the body A. C. isth
Size: 1301px × 1922px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, bookidsteamengineindic00houg
