Words and pictures from “Electric Lighting for Marine Engineers” by Sydney F. Walker, undated but approx. 1890 (a bookseller lists an 1892 edition).
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Front cover from Electric Lighting for Marine Engineers
A dark red cover with an illustration of a battleship in black; in gold, a beam of light from the ship’s mast illuminates a smaller, distant, floating ship or submarine. [...] [more...] |
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Title Page from Electric Lighting for Marine Engineers
Electric Lighting for Marine Engineers or How to light a ship by the electric light / and how to keep the apparatus / in order [more...] |
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Fig. 27.—Switchboard.
“Figs. 27 and 28 show switchboards suitable for use on board ship. Fig. 27 shows the usual arrangement of circuits on board a “tramp.” [more...] |
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Fig. 60.—Bulkhead Fitting for Lighting two Cabins with one Lamp.
“Fig. 60 shows another form of bulkhead fitting designed to economise lamps. As will be understood, it is fixed in a hole cut in the bulkhead to receive it, say between two cabins, the flange shown being screwed to the woodwork, and the light showing on either side. This fitting is most frequently used where a permanent light is required. It would [...] [more...] |
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Fig. 61.—Guarded Portable Lamp Fitting.
“Fig. 61. shows a portable guarded fitting intended for portable lamps, for holds, etc. A flexible cable is attached to it and a switch placed at the point of conection.” (p. 152) [more...] |
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Fig. 62.—Reading-Table Lamp.
“Fig. 62 shows a reading-table lamp, with silk shade. The lamp is fed by a flexible cord.” (p. 152) |
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Fig. 69.—Showing Internal View of Tumbler Switch.
“Figs. 69 and 70 are inside and outside of the tumbler switch. The base of this switch is sometimes slate and sometimes porcelain. In larger switches, the “chopper” switch, which corresponds to the tumbler in small switches, is now the [...] [more...] |
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Fig. 70.—Tumbler Switch.
“The weak points of this switch would appear to be: – [more...] |
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Fig. 72.—Author’s Main Switch—Bent Spring Pattern.
“Figs. 72 and 75 show the author’s form of large switch.” |
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Fig. 73.—English Shopper Switch
Another design of electrical switch from 1892. |
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