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Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
A hay hood is a roof extension which projects from the ridge of a barn roof, usually at the top of a gable. It provides shelter over a window or door used for passing hay into the attic or loft of the barn; it may hold a pulley for hoisting hay or hay bales up to the loft, or a fork or grapple and track system (or hay carrier ) where hay can be ...
Roofing work includes the hoisting, storage, application, and removal of roofing materials and equipment, including related insulation, sheet metal, vapor barrier work, and green technologies rooftop jobs such as vegetative roofs, rainwater harvesting systems, and photovoltaic products, such as solar shingles and solar tiles. [1] [2]
Lifting equipment, also known as lifting gear, is a general term for any equipment that can be used to lift and lower loads. [1] Types of lifting equipment include heavy machinery such as the patient lift , overhead cranes , forklifts , jacks , building cradles, and passenger lifts, and can also include smaller accessories such as chains ...
Haemmerlin is a French company, founded in 1867 and based in Alsace.Haemmerlin manufactures in excess of one million products a year. The full range includes wheelbarrows, sack trucks, hose reels, hoists, winches, roofing platforms, rubbish chutes, safety barriers, specialist trays for concrete and mortar, trestles, concrete mixers and various equipment used on construction sites.
(In many older tower crane designs the hoisting devices and electronics were located in the mast foot.) [65] Hoist winch: the hoist winch assembly consists of the hoist winch (motor, gearbox, hoist drum, hoist rope, and brakes), the hoist motor controller, and supporting components, such as the platform. Many tower cranes have transmissions ...