Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 37
118 … Mechanical Movements. 33 111. Micrometer screw. Great power canbe obtained by this device. The threadsare made of different pitch and run in differ-ent directions, consequently a die or nutfitted to the inner and smaller screw wouldtraverse only the length of the difference be-tween the pitches for…
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
