The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 530
Fig. 326. Section ofBlake Transmitter. STANDARD EIvECTRICAL DICTIONARY. 525 them. One telephone is held against each car without the use ofthe hands. Telephone, Capillary. A telephone utilizing electro-capillarityfor the production of telephonic effects. The following describesthe invention of… … Fig. 327. Breguets Capillary Telephone. The point of a glass tube, drawn out at its lower end to a capillaryopening dips vertically into a vessel. This vessel is partly filledwith mercury, over which is a layer of dilute sulphuric acid. Theend of the immersed tube dips into the acid, but does not…
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