Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 271
er, one of which containstwo tenons which go into the grooves i made in the other, and which arc shown in Figs. 2663 and2664. This screw alone would not suffice; so the two parts of the head of the tool-holder arc fixedtogether, above and below the nut, by means of two rings /, fitted in like…
Mechanical engineering -- Dictionaries
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