otive force that the dilu- In taking a picture with the camera only two move- Fig. 3, by the bent wire spring arm, at right angles, tion of the liquid of a voltaic cell by means of water or ments are required : first, the releasing of the shutter ; passing through the lower end of the vertically-… … operation is similar to the old fashioned revolv- 1 is an exterior view. The box is neatly covered with ing stereoscope. When a carrier is turned down, alcohol, the liquefaction of either the positive or nega- the others are advanced forward. black pebbled leather. On the front is seen the lens…
Patents · Shutter · Munn · Scientific American · Vertical · High grade · Express money · Horse power · Sewing machine · Carbonic acid · Patent office · Bell telephone · Gas engine · Electromotive force
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