Electric Lighting for Marine Engineers (page 2/3)

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...]

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...]

Figs. 15 and 16.—Showing Siemens’ Alternate Current Dynamo, with its Excitor.

Fig. 15 shows the only form of alternator that has been used on board ship [as of 1892]. It is of the Siemens pattern; having, as already explained, a double crown of short field-magnets with the [...] [more...]

Fig. 17.—Showing Old Type of Gramme Continuous Current Dynamo.

Fig. 17 shows the early type of Gramme machine, some of which may still be seen doing good work. (p. 64)

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...]

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...]

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...]

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)

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...]

Fig. 70.—Tumbler Switch.

“The weak points of this switch would appear to be: – [more...]

Fig. 72.—Author’s Main Switch—Bent Spring Pattern.

“Figs. 72 and 75 show the author’s form of large switch.”