1851 Great Exhibition: Official Catalogue: Class X.: Fennell Allman
From Graces Guide
458. ALLMAN, FENNELL, 12 Stanhope Place, Hyde Park — Inventor.
An electric table-lamp, suitable for a room, with another, illustrating the way in which the dynamic effect of the current is made to govern the lamp. The most important features of the invention are the employment of electricity as a substitute for coal gas, oil, candles, etc.
The novelty consists in the employment of the dynamic effects of the electric current to produce the conditions necessary for the maintenance of a constant light. The neat simplicity of the lamp, consisting of only three parts, render it very durable and economic. Patented.
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