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

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Image title: Figs. 15 and 16.—Showing Siemens’ Alternate Current Dynamo, with its Excitor.
Source: Walker, Sydney F.: “Electric Lighting for Marine Engineers” (1892)
Place shown: none
Keywords: machinery, electrics, greyscale
Status: public domain in the USA, out of copyright in Canada, hence royalty-free stock image for all purposes and no usage credit required

Notes:

Fig. 15 shoes 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 souble crown of short field-magnets with the starlike armature revolving in the space between them.

Fig. 16 shows the excitor, as it is termed, that is used with this dynamo. It is a series wound Siemens’ dynamo of the early type.

The initials W.M.R.Q. on the engraving could be the engraver’s initials, the artist’s initials, or both.

Dimensions: 100 x 80mm (3.9 x 3.1 inches)
Filename: 015-Siemens-Alternate-Current-Dynamo-q75-1552x1175.jpg
Scanner dpi: 2400
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