. Railway mechanical engineer . metimes condemned owing to defective seats when theyare fitted with removable seats and it is only necessary to re-new the seats. A careful check should be kept on all valves,gages, regulators and air brake iiiatorials and requisitions fornew stock should never be issued without lirst ascertainingwhat has become of the old. CARE OF LYE TANKS BY J. A. JHSSON The lye tank is an imiionaiit feature of shop e<|uipiiientfor the repair of the various parts of the air lirake apparatusand other locomotive appliances which lias received com-paratively little attention.
. Railway mechanical engineer . metimes condemned owing to defective seats when theyare fitted with removable seats and it is only necessary to re-new the seats. A careful check should be kept on all valves,gages, regulators and air brake iiiatorials and requisitions fornew stock should never be issued without lirst ascertainingwhat has become of the old. CARE OF LYE TANKS BY J. A. JHSSON The lye tank is an imiionaiit feature of shop e<|uipiiientfor the repair of the various parts of the air lirake apparatusand other locomotive appliances which lias received com-paratively little attention. The writer has experimentedconsitlerably with tanks of various shapes and with severalmethods of regulating the solution with results that werevery interesting as well as beneficial. The ideal location for a lye tank is inside the shop, wherethe temperature of the atmosphere is constant. When lo-cated in the open air the conditions are such that it is diffi-cult to maintain a solution of uniform strength. It is im- Heaier Pipz. Automatic Regulating Device for Lye Tanl<s possible to even the amount of raw lye required,especially where the contents of the tank are being con-tinually changed and where the tank cover is not a close fit.)rom tests made in the open air with a tank 2 ft. wide, 2 and 8 ft. long, the solution in which was 18 in. deep,the evaporation at an atmospheric temperature of 80 to 6 gal. per hour, or at a rate which would resultin an entire change of volume in 30 hours. At a temperatureof 20 deg. the evaporation was 8 gal. per hour, or an entirechange in 23 hours. To automatically maintain the depth ofthe solution at 18 in. under such varying conditions provedto be a difficult matter. The common practice of feeding steam to the solution tlirou}.;li a certain size orilice in thesteam pipe proved to be ulioUy unreliable. .\ sensitivelyoperated lloat valve Ma\e \ L-ry .yood results so long as thevalve remained free from leaks, b
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
