Model of an Oscillating Steam Engine, Sketch model of the transmission of the movement of two oscillating cylinders on the shaft, mounted on an upright shelf. The shaft is set in motion with a crank on the rear of the board, so that the pistons and two cross-sectioned cylinders also start to move. Four legs on the back of the board make it possible to lay the whole on its back. floorboard. The pressure surface of the propeller blades is curved in the form of a parabola. The screw can be turned with a crank. The model has a pitch of 286 mm, a diameter of 200 mm, the hub is 75 mm long and has a diameter of 26 mm. Scale 1:10 (inferred). The screw light device consists of a loose frame with a screw that can be hoisted up and down in the sleeve on a rope that runs over a disc at the top of the screw sleeve and a disc in the screw frame. The screw is a Mangin screw, a four-blade propeller, composed of two two-blade screws that can be set in parallel for lifting. For this purpose, the shaft of the rear propeller, which runs through the shaft of the front propeller, is provided with a slot at the rear, which must be placed in a vertical position to enable the propeller to be lifted, the rails over which the slot runs immediately blocks the screw in the vertical position. The front screw is then in horizontal position. Of these, the propeller shaft has two intersecting slots on the front, which fit over the same rail: halfway between lines A and B, this rail is interrupted, so that the screw can be turned here. The vertical rails against the stern and the stern over which the screw frame moves 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. 1:10 scale (derived)., anonymous, Netherlands, 1845, wood (plant material), brass (alloy), h 25.7 cm × w 29.1 cm × d 9.4 cm
Keywords:
Model, Oscillating Steam Engine, Sketch model, transmission, movement, two oscillating cylinders, shaft, mounted, upright shelf, set, motion, crank, rear, board, pistons, two cross-sectioned cylinders, start, move, Four legs, back, possible, lay, whole, floorboard, pressure surface, propeller blades, curved, form, parabola, screw, turned, model, pitch, 286 mm, diameter, 200 mm, hub, 75 mm long, 26 mm, Scale 1, 10, inferred, screw light device consists, loose frame, hoisted up, down, sleeve, rope, runs, disc, top, screw sleeve, screw frame, Mangin screw, four-blade propeller, composed, two two-blade screws, parallel, lifting, purpose, rear propeller, front propeller, provided, slot, must, placed, vertical position, enable, propeller, lifted, rails, slot runs immediately blocks, front screw, horizontal position, propeller shaft, two intersecting slots, front, fit, rail, halfway, lines, B, interrupted, vertical rails, stern, screw frame moves, teeth, includes catches, screw window, prevent slipping back, catches, held back, pulling, two ropes, lowered, 1, 10 scale, derived, Netherlands, 1845, wood, plant material, brass, alloy
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