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Jacob Atherton
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13,849. Atherton, J. July 4. Patent refused. Incandescent lamps.-A bayonet or screw cap g is made with two slots g<1>, g<2> corresponding to grooves formed in the neck of the bulb, and is secured against a shoulder f on the neck by a wire h laid in the slots and grooves and having its ends twisted together. The bulb may have a long neck a', which can be divided by a hot wire or otherwise, for replacing a filament, and afterwards rejoined. The new filam e n t i s previously mounted on short wires, which are attached to the original leading-in wires.
GB189913849D1899-07-041899-07-04Improvements in Electric Incandescent Lamps.
ExpiredGB189913849A
(en)