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Frederick Roberts Pope
Maurice William O'connell
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Publication of GB190819052ApublicationCriticalpatent/GB190819052A/en
19,052. Pope, F. R., and O'Connell, M. W. Sept. 10. No Patent granted (Sealing fee not paid). Springs.-Resilient supports e for electriclamp filaments are mounted in small glass tubes d arranged substantially parallel to a central stem, on which they are fused. The supports are preferably of carbon. Each of their ends may be held by friction in a separate tube d, as shown, or one end of each support may be fused in a tube and the other end left free. The tubes may make a small angle with the central stem, and may be curved to fit the supports.
GB190819052D1908-09-101908-09-10Supports for Filaments of Incandescent Electric Lamps.
ExpiredGB190819052A
(en)