By letter

Y

Yankee Machine
see M.G. MACHINE.
Yankee Press
A hydraulically-operated horizontal press of U.S.A. manufacture (Ardeer).
Yield
A unit of finished product expressed in terms of the number of bushels of grain required to make it.
Yoke
A wooden cross-piece joining two pieces of timber.
Yoke and Chain
A tool used for disengaging a STONE NUT.
Yoke Arm
A bar with a fork or yoke at one end. See YOKE AND CHAIN.
Y-Wheel
Wooden or iron wheel which has metal 'Ys' projecting from the rim, for operation by an endless chain or rope so increasing the grip. See STRIKING WHEEL.