Steam engines; a thorough and practical presentation of modern steam engine practice (1917)
Ludy, Llewellyn V., 1875-, American Technical Society · Chicago, American technical society · leaf 178
rsted leads fromthe oil in the cup to the tube. Capillary attraction causes theoil to flow continuously and drip down the tube. When not in use,the lamp wick should be withdrawn. This type of oil cup is nowseldom used. The oil cup shown in Fig. 96 is simple and economical. Theopening of the valve… … 166 STEAM ENGINES
Steam-engines
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