Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 186
, the ends of the carbon loopto be presently described. The glass stem with the carbon fila-ment attached is then introduced into the neck of the bulb, tothe mouth of which its thickened portion is attached by fusion,so as to form with it one piece of glass. The drawn down endis then trimmed off… … Fig. 86. attached b}^ a mercury joint to a Sprengel pump, the bulb is ex-hausted, and when the required exhaustion is complete, the con-traction nearest the pump is sealed off, leaving a short length of 172 THE ELECTRIC LIGHT. tube attached to the bulb by a capillary neck, but exhausted tothe same…
Electrical engineering
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