Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries (1910)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N. W. Henley publishing company · leaf 185
brasstube 2^ in. in length and lyi in. in diameter, in the interior of which is fixed a small electro-magnet.An armature is placed oppo-site the poles of this latter,and a regulating screw ter-minating in a platinum pointserves as an automatic inter-rupter. It takes but twoLeclanche elements of… … ELECTRIC POWER AND DEVICES, 185
Mechanical movements
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