Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 827
een used with oils or other lluids.Holmes made bearings with greater percentages ofgraphite, using the wood pulp for strength, andsoon found that no lubricant was needed at all.He put bearings made of this material to work Invarious places, wilh no means of oiling, and hadno trouble with them. Some… … ^ vented of lale, one of the most ingenious and sim-ple of which is illuslraled herewjib. II is the in-vention of Mr. Alfred P. Wapi. an employe of the(olorado Midland road, at Colorado City, Colo. As will be seen by the engraving, he employsa short shaft or spool, and a ratchet wheel, to Uikeup…
Railroads · Locomotives
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