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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 302

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 302
1194c. COMPENSATING PENDULUM.—The heavy black lines represent steel rods; the openlines the brass rods. The relative expansion of steelis 2, brass 3. The center rod is fixed to the lowercross head at the top and slides freely through thecross heads at the bottom. In the combinationshown the length… … 1194J. ELECTRO-MAGNETICCLOCK PENDULUM.—P is anordinary pendulum with a notchedpiece a and an iron piece e attached,m is an electro-magnet. E is a bat-tery; f f are the springs which actas contact pieces attached to thebattery. /> is a steel piece called thepallet. As long as the pendulumis at…

Mechanical movements

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