Dictionary definitions
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frictional gearing
From The Collaborative International Dictionary of English v.0.48:
Frictional \Fric"tion*al\, a. Relating to friction; moved by friction; produced by friction; as, frictional electricity. [1913 Webster] Frictional gearing, wheels which transmit motion by surface friction instead of teeth. The faces are sometimes made more or less V-shaped to increase or decrease friction, as required. [1913 Webster] .
From The Collaborative International Dictionary of English v.0.48:
Gearing \Gear"ing\, n.
1. Harness.
[1913 Webster]
2. (Mach.) The parts by which motion imparted to one portion
of an engine or machine is transmitted to another,
considered collectively; as, the valve gearing of a
locomotive engine; belt gearing; esp., a train of wheels
for transmitting and varying motion in machinery.
[1913 Webster]
Frictional gearing. See under Frictional.
Gearing chain, an endless chain transmitting motion from
one sprocket wheel to another. See Illust. of {Chain
wheel}.
Spur gearing, gearing in which the teeth or cogs are ranged
round either the concave or the convex surface (properly
the latter) of a cylindrical wheel; -- for transmitting
motion between parallel shafts, etc.
[1913 Webster]
