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Scientific American, Vol. 51, No. 12 (1884) (1884)

leaf 3

An illustration from Scientific American, Vol. 51, No. 12 (1884), 1884, leaf 3
7 shows the single photographic positive will suffice. After this has the movement of the wheel will carry the arms into engage- tool arranged to be used as a beam compass. served to transfer the first color, it remains intact with the This useful device has been patented by Mr. P. O. King,… … plate, K. By swinging the plate, K, back the trace, O, can STANDING & SWAINE’S TRACE HOLDER AND DETACHER, ment with the hooks. The hooks will thus support the be placed between the clamp’ plate and plate, K, when the arms above the depressed portion of the track with the latter ig swing in the…

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