HYDRAULIC a.
a cement or mortar made of hydraulic lime, which will harden under water. -- Hydraulic elevator, a lift operated by the weight or pressure of water. -- Hydraulic jack. See under Jack. -- Hydraulic lime, quicklime obtained from hydraulic limestone, and used for cementing under water, etc. -- Hydraulic limestone, a…
PNEUMATIC; PNEUMATICAL a.
which letters, packages, etc., are sent, by the flow and pressure of air. -- Pneumatic elevator, a hoisting machine worked by compressed air. -- Pneumatic pile, a tubular pile or cylinder of large diameter sunk by atmospheric pressure. -- Pneumatic pump, an air-exhausting or forcing pump. -- Pneumatic railway. See…
TRUNK n.
rious uses, as for conveying air to a mine or to a furnace, water to a mill, grain to an elevator, etc. Trunk engine, a marine engine, the piston rod of which is a trunk. See Trunk, 10. -- Trunk hose, large breeches formerly worn, reaching to the knees. -- Trunk line, the main line of a railway, canal, or route of co…