Chapter CXIV: Section 31: Differential Gear
(_See also p. 74._)
=2122. Differential piston indicator= for steam engines.
=2123. Harrison’s differential epicycloidal hoist gear.= Pinion ~A~ is fast to the barrel and loose on the shaft, ~B~ is keyed to the shaft, ~C~ and ~D~ are cast together, and run on a stud in the large wheel ~E~, which is loose on the shaft; ~A~ and ~B~ have different numbers of teeth.
=2124. Differential screw bolt= and sleeve movement.
=2125. Differential screw valve fitting,= with cone seat, tightened up by the ~T~ head and fine thread central screw; used for gas bottles.
=2126. Chinese windlass.= The origin of modern differential gear.
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The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purposeChapter CXIV: Section 31: Differential Gear
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