Line shaft
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A line shaft or millworks is a power-driven rotating shaft for power transmission within factories and industrial complexes. They were used extensively from the Industrial Revolution until the early 2
Four wool spinning machines driven by belts from an overhead lineshaft (Leipzig, Germany, circa 1925)
Variable-speed belt drive for a lathe. The fixed pulley on the upper shaft is driven at constant speed by a belt from the power source. The loose pulley (idler) allows the machine to be stopped in isolation – necessary for changing speed. The stepped pulleys (left) provide three drive speeds for the machine tool (not shown), depending on which pair of pulleys is connected by the belt.
Printing presses in 1870
A line shaft system in a machine shop in France, 1919. The ubiquitous belts posed an entanglement hazard to the operators, so machinists with long hair are wearing hats to reduce the risk of injuries.
Power transmission
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Power transmission is the movement of energy from its place of generation to a location where it is applied to perform useful work.
Electric power transmission with overhead line.
Mechanical power transmission using gears