Practical instructor and reference book for locomotive firemen and engineers: a practical treatise .. (1916)
Lockhart, Charles F. (Charles Fulton), b. 1872 · New York, The Norman W. Henley publishing co. · leaf 103
he practice on most roads to takethe choke plugs away from the lubricators, where they were 100 LUBRICATOR DEFECTS formerly located, and place them on the steam chest.This subjects the choke plug to the heavy vibration ofthe live steam in the steam chest; this vibration is muchgreater at the steam… … Fig. 22.—Sight Feed Glass and Fittings for Nathan Lubricator. dition, the choke plugs quickly become worn to a largersize than they should be, if the lubricator feed valvesare opened and set to feed at the proper rate when theengine is not using steam, and the throttle is thenopened admitting steam…
Locomotives
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