Model of a Lifting Screw, Model of a screw sleeve between stern and stern, with part of the keel. The screw light device consists of a loose metal frame with a normal two-blade screw, which can be lifted up and down in the tube by a rope that runs over a disc at the top of the screw tube and a disc in the screw window. For this, the propeller shaft must first be withdrawn. The screw frame moves over vertical rails against the stern and the stern, which are provided with teeth, this includes catches of the screw window that prevent slipping back. The catches can be held back by pulling on two ropes, so that the screw window can be lowered. Clamping rods against screw and stern can block the movement of the screw window. The aim is to prevent the screw from turning when hoisting. Scale 1:10 (derived)., Shimonoseki, Strait of, Medusa (ship), Koninklijke Fabriek P. van Vlissingen & Dudok van Heel, Amsterdam, 1853, wood (plant material), brass (alloy), iron (metal), rope, model: h 92.5 cm × w 60 cm × d 21 cm packaging capsule: h 96 cm × w 63.5 cm × d 28 cm
Keywords:
Model, Lifting Screw, screw sleeve, stern, part, keel, screw light device consists, loose metal frame, normal two-blade screw, lifted up, down, tube, rope, runs, disc, top, screw tube, screw window, propeller shaft must first, withdrawn, screw frame moves, vertical rails, provided, teeth, includes catches, prevent slipping back, catches, held back, pulling, two ropes, lowered, Clamping rods, screw, block, movement, aim, prevent, turning, hoisting, Scale 1, 10, derived, Shimonoseki, Strait, Medusa, ship, Koninklijke Fabriek P, van Vlissingen & Dudok van Heel, Amsterdam, 1853, wood, plant material, brass, alloy, iron, metal, model
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