. Railway mechanical engineer . lve OpeningsTravelof Valve Area M-in 00097 sq. in. 54-in 0039 sq. in. H-m 0087 sq. in. J4-in .0156 sq. in. ^•in 0243 sq. in. ^4-in .0351 sq. in. 7^-in .0477 sq. in. 1-in .0625 sq. in. If sediment should lodge in the opening on the seat, itcan be cleaned off by turning the handle of the valve 7, thusclosing the valve. The stem of the valve is threaded so that one complete turn of the handle moves the valve 1/16 operation immediately shears off the particle of sedi-ment and pushes that part above the seat into trap 8, thebalance of the particle immediately
. Railway mechanical engineer . lve OpeningsTravelof Valve Area M-in 00097 sq. in. 54-in 0039 sq. in. H-m 0087 sq. in. J4-in .0156 sq. in. ^•in 0243 sq. in. ^4-in .0351 sq. in. 7^-in .0477 sq. in. 1-in .0625 sq. in. If sediment should lodge in the opening on the seat, itcan be cleaned off by turning the handle of the valve 7, thusclosing the valve. The stem of the valve is threaded so that one complete turn of the handle moves the valve 1/16 operation immediately shears off the particle of sedi-ment and pushes that part above the seat into trap 8, thebalance of the particle immediately passing through thetriangular opening when the valve is again opened. Thisoperation can be accomplished in a few seconds and the valvecan be reset to give the same opening. The trap 8 can be cleaned in a few minutes without stop-ping the flow of fuel through the valve, by turning stop-cock Jand removing the plug p. The lock-nut arrangement makes it possible to set thevalve for any required quantity of fuel necessary. It also. Details of Rigby Liquid Fuel Regulating Valve provides a guarantee against waste of fuel. The installationof the valve from a safety point of view is highly important,as explosions due to leakage are almost an impossibility. Itis stated that savings of five to 15 per cent are possible byusing the Rigby regulating valve. The valve is manufacturedin sizes suitable for various conditions, with two standardsizes; namely: type A with 1-in. valve travel; and tvpeB with y2-in. travel. March, 1921 RAILWAY MKCHANICAL ENG1NKKK 195 Duplex Mono Flue Gas Analyzer ANEW type of instrument designed to make automaticanalyses of flue gases and to record both CO, andcombustible gases has been developed by the of America, Buffalo, V Y. The instrument,which is known as the Duplex Mono Gas Analyzer, is intended to give a more reliable indication of the efficienq oicombustion than can be obtained by the use of an instrumi m
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
