Hepworth, Thomas Cradock, -1905 · London : Hazell, Watson, and Viney · leaf 147
135 AMATEUR PHOTOGRAPHERS. Messrs. Hinton have introduced the flash-light arrange- ment shown at fig. 49. Here we have the same idea carried out in vulcanite, the opening for the powder being covered when the apparatus is in use, by the sliding sleeve/. It is evident that both these contrivances… … Fig. 50. which can be understood by reference to the sectional dia- gram, fig. 50. The lamp is cylindrical in form, and the spirit and wick are held in an annular well, DD. The wick is of indestructible asbestos, and just enough spirit is poured into the funnel W to soak it well. When this wick is…
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