and have a mean width of 1'65 inches, thus hav- as inductors and as carriers respectively to those on such, which can be made without much outlay, with ing an area of 31 '35 square inches. There is thus on simple, easily attainable materials, and which may the other when they approach the best… … disks; and (4) the small cost at which the machine may be constructed. Although the great machine which we illustrate in inches, or a thousand square inches on the two disks this notice was working in a workshop in which there investments may be considered permanent, as the was a steam engine and…
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