Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules (1908)
National correspondence school of railroading, Chicago. [from old catalog] · [Chicago] · leaf 109
shown onPlate 22. The blow-off cock is operated by air, having a pipeconnection 14 extending from the blow-off cock to thecab, which admits air to piston 5, forcing the piston in-ward and compressing spring 6, unseating intermediatevalve 8 and forcing independent valve 10 from its seatagainst… … Plate 22, Figure I HANCOCK.MGUMATIC BLOW-OFF VALVE BLOW-OFF VALVE. 99
Locomotives
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