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 485
in a horizontal plane; all of which can be raised and lowered at cither end of the machine, by meansof a crank-wrench, which engages two screws connected by corresponding gearing. The main sup-port can be elevated or dropped for certain purposes independently of the horizontal position and … perpendicular adjustment of the side-bracket in front of the cutter-head. In the engraving bothtops are shown at a common level. The large one rests partly on the main support, and on the side-bracket the smaller table is carried forward to the projecting side-head sufficiently to permit the free…
Mechanical engineering -- Dictionaries
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