Model of an Optical Telegraph, Model of an optical telegraph, on a floorboard. The device consists of two propped posts with a control mechanism below and moving arms at the top. The main arm rotates around an axis between the posts and has two blades at the ends, which rotate independently. The operating mechanism moves completely analogously to the arms, its movement being transferred to the axes of the moving parts with chains., anonymous, France, c. 1800 - c. 1807, wood (plant material), brass (alloy), total: h 138.5 cm × w 43 cm × d 32.5 cm radius of main arm: l 24 cm radius of wings: l 19 cm h 150.5 cm × w 52.5 cm × d 36.5 cm
Keywords:
Model, Optical Telegraph, optical telegraph, floorboard, device consists, two propped posts, control mechanism, moving arms, top, main arm rotates, axis, posts, two blades, ends, rotate independently, operating mechanism moves completely analogously, arms, movement, transferred, axes, moving parts, chains, France, c, 1800, 1807, wood, plant material, brass, alloy, total
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