Model of a Fan, Model of a fan operating as a double bellows. Part of the cover can be removed to show the inside. In the body, which has the shape of a circle segment at its point, a plank moves back and forth, hinged at the point. The board is pulled with ropes on either side. Simple valves consisting of a wooden valve on either side let the air in in turns. When the air is compressed on one side, it is discharged via a similar valve at the top to a round ventilation duct, one of which is mounted on each side., anonymous, Netherlands, 1746 - 1800, wood (plant material), brass (alloy), iron (metal), rope, model: h 60.5 cm × w 87 cm × d 34.3 cm packaging capsule: h 66 cm × w 93.5 cm × d 38 cm
Keywords:
Model, Fan, fan operating, double bellows, Part, cover, removed, inside, body, shape, circle segment, point, plank moves back, forth, hinged, board, pulled, ropes, side, Simple valves consisting, wooden valve, side let, air, turns, compressed, discharged via, valve, top, round ventilation duct, mounted, Netherlands, 1746, 1800, wood, plant material, brass, alloy, iron, metal, rope, model
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