Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 510
expansion-cam is figured in the plate ; it is put on the* shaft in two pieces, which are fastened to eachother by means of four bolts passing through lugs, and is fixed to the shaft by keys. A roller at oneend of a bell-crank, which is connected with the expansion-valve, presses against the cam, so…
Mechanical engineering
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