Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 259
f oil, the valueof the oil being supposed to vary with the total number ofrevolutions required to raise the temperature to a given degree—for instance, to 1600 F. 160. Boults Lubricant-testing Machine.-^This machine,designed by W. S. Boult of Liverpool, is a modification of 228 EXPERIMENTAL… … Fig. 115.—Boults Lubricant-tester. The machine is designed to accomplish the following pur-poses: I. Maintaining the testing journal at any desired tem-perature. 2. Complete retention on the rubbing surfaces ofthe oil under test. 3. Application of suitable pressure to therubbing surfaces. 4.…
Building materials · Machinery
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