ranklin Institute a does not act upon the main driving wheel. But assoon as the letter, A, upon a black ground be projected upon disk, P sealed description of a method of ‘‘seeing by telegraph” (Fig. 1), all parts of disk will be dark, excepting where the box is in the position indicated by dotted… … SELENIUM CAMERA. Fig. 2—VERTICAL SECTION OF MOTOR. ing screw, C (Fig. 1); from this screw by wire to binding to us some months since by the inventor, Mr. Geo. R. Carey, screw, D (Fig. 2), through shaft, K, and sliding piece, P, at the side of the endless belt as a resting place for the of the…
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