Recent developments in drawing by the aid of projection apparatus used on the house lighting system .. (1912)
Gage, Simon Henry, 1851-1944 · n.p. · leaf 6
that the worker has the proper rheostat and lamp,how shall it be connected with the lighting system? Wiring for the small arc /am/>:—This is shown in fig. i, whichis especially prepared to show how to install this drawing outfit.It is also shown in fig. 6, 13, and 14. One can use the good,… … Fig 1Fig. 1. Diagram of the Microscope for drawing, the Arc Lamp with small rightangled carbons, the Wiring, the Rheostat and the connections with the house lightingsystem. A. The small arc lamp with the condenser (C) giving parallel rays, the vertical(V-C) and the horizontal (H-C) carbons; F the…
Lantern projection · Projection · Drawing
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