Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 586
te mixedwith the oil. Graphite being a mineral and not easily sus-pended in oil it has always been a rather difficult problem Lubricating Appliances 573 to feed it properly along with the oil, but the device illus-trated in Figure 232 has proved to be very successful infeeding the mixture of oil… … Fig. 232the manzel agitating, force and sight feed oil pump and bevel gears on the cup. The construction is simpleand durable. Two fillers are used, one for oil and one forgraphite. Xo fixed rule can be laid down for the amountof graphite to be used, as some engines require more thanothers. Two or…
