Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 453
ed with a friction brake, so that the load could be varied, and cards were taken at various loads. Thevalve rod had a sharp point attached, which was made to scribe a lineon a strip of tin pressed against it at the instant of taking the card.In this way a record of the exact valve travel at the… … Card 1. Speed 301 R.P.M. Valve Travel1.745 Ins.
Machine design
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