The little gold mine. Conklin's handy manual of the mechanical arts and house plans .. (1889)
Conklin, [George W.] [from old catalog] · Chicago, Laird & Lee · leaf 309
CK MOVEMENT. A self-winding clock is now on the market and we presentherewith an engraving of one. It is made by the AmericanManufacturing and Supply Co., Limited, 10 and 12 Deystreet. New York. Objection may be made to the employ-ment of a battery as an auxiliary, and therefore that the clock 3o8… … ^nQ wheels and arbors below the center are removed fromme clock. In their place a small electric motor is substitutedThis motor connects with a spring barrel on the center arbor,which incloses a spring six feet long, three-sixteenths of aninch in width and six-one-thousandths of an inch…
Industrial arts · Workshop recipes · Architectural drawing
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