Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 101
cket joint and bent piece of metal with arotating upright shaft set concentric to thebody to be polished. The cup is set eccen-tric, and by that means is caused to havean independent rotary motion about its axis ! on the universal joint, as well as to revolveI about the common axis of the shaft and… … w^^mmm
Mechanical movements
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