Model of a Masting Sheer, Model of a mast crane, lifting a mast, on a floorboard. The legs lean forward and are held back by two braces and four stays attached to bollards. The foot in which the braces are positioned is adjustable in three positions. Behind the bollards are two capstans and behind them two betings. There is a heavy betting between the legs of the mast crane. Two hoists, one for the top and one for the lower part of the mast: the rope is attached to the top of the mast crane and goes through the double block attached to the mast and a triple disk block at the top of the mast crane, then to a block at the beting, again to the triple block at the top and down again. There are two more blocks at the top of the mast. Climbing rungs are placed on the legs of the crane., Rijkswerf Rotterdam, Rotterdam, c. 1818, wood (plant material), brass (alloy), yarn, h 80 cm × w 119 cm × d 48 cm
Keywords:
Model, Masting Sheer, mast crane, lifting, mast, floorboard, legs lean forward, held back, two braces, four stays attached, bollards, foot, braces, positioned, adjustable, three positions, two capstans, two betings, heavy betting, legs, Two hoists, top, lower part, rope, attached, goes, double block attached, triple disk block, block, beting, again, triple block, down again, two, blocks, Climbing rungs, placed, crane, Rijkswerf Rotterdam, Rotterdam, c, 1818, wood, plant material, brass, alloy, yarn
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