Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 510
this small Bhaft is fixed another lever, placed bo that it is depressedby the tapet 8, when the travelling table is moved towards the hack of the machine ; by tin- the crank-lever n is depressed and the weight o raised at the Bame instant. S is a tapi t on the travelling table, and which nun be… … VW V, four bevel-wheels, peered pair and pair, for turning the screws ff to raise or lower thevertical Blide < 0, to suit the work upon the table. Two of the wheels are fast upon the upper end- i Ithe screws, and two are in like manner made fast on V* a crossrsfaaft, on which are two of the…
Mechanical engineering
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