TESTING n.
The operation of refining gold or silver in a test, or cupel; cupellation. Testing machine (Engin.), a machine used in the determination of the strength of materials, as iron, stone, etc., and their behavior under strains of various kinds, as elongation, bending, crushing, etc.
THROSTLE n.
A machine for spinning wool, cotton, etc., from the rove, consisting of a set of drawing rollers with bobbins and flyers, and differing from the mule in having the twisting apparatus stationary and the processes continuous; -- so called because it makes a singing noise. Throstle cock, the missel thrush. [Prov. Eng.]…