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Books Books 1 - 4 of 4 on ... by means of the contact rollers, r and r, between the guide rods, D1 and D, the....
" ... by means of the contact rollers, r and r, between the guide rods, D1 and D, the contact being maintained by the spring, s (Fig. 14). Sometimes a permanent electrical connection is made by a loop of wire attached to the rods, D, and holder, H. If a... "
Report on the International Exhibition of Electricity Held at Paris, August ... - Page 127
by United States. Army. Corps of Engineers, David Porter Heap - 1884 - 287 pages
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Journal, Volume 11

Electricity - 1882
...wire attached to the rods, D, and holder, H. If a fixed focus lamp is required, the pulleys, R and R1, are made double, one being twice the diameter of the...other ; the cord that passes over the larger pulley being connected to the top electrode, whilst the bottom electrode is connected to the cord passing...
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Dynamo-electricity: Its Generation, Application, Transmission, Storage and ...

George Bartlett Prescott - Electric engineering - 1884 - 867 pages
...wire attached to the rods, D, and holder, H. If a fixed focus lamp is required, the pulleys, R and R1, are made double, one being twice the diameter of the...other; the cord that passes over the larger pulley being connected to the top electrode, while the bottom electrode is connected to the cord passing over...
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The Principles and Practice of Electric Lighting

Alan Archibald Campbell Swinton - Electric lighting - 1884 - 172 pages
...mechanism of any description. When the lamp is required to maintain a constant focus the counter-weight pulleys are made double, one being twice the diameter of the other, and the negative carbon is caused to move up as it is consumed by being attached to the cord passing...
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Proceedings of the Institution of Electrical Engineers, Volume 11

Institution of Electrical Engineers - Electrical engineering - 1882
...wire attached to the rods, D, and holder, H. If a fixed focus lamp is required, the pulleys, R and R1, are made double, one being twice the diameter of the...other ; the cord that passes over the larger pulley being connected to the lop electrode, whilst the bottom electrode is connected to the cord passing...
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