Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 588
ly approved and widelyadopted variety of packing in which separate springs are employed. The ease with which the springsmay be bent and reset to the proper compass prevents set screws from being required: the only seri-ously objectionable point seems to be the expense of fitting and grinding…
Mechanical engineering · Mechanics · Engineering
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