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George Helps
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13,813. Helps, G. June 16. Incandescent gas lamps.-The mixing-chambers a are arranged in an annular chamber b detachably secured to a jacketed flue i. Each, mixing-tube consists of two parts screwed together, or of two telescopic parts d,d<1> forced apart by a spring c, and is fitted with a ground end fitting in the mixing - chamber and with a shoulder, flange g, or projection bearing against a reflector on the flue.
GB190613813D1906-06-161906-06-16Improvements in Gas Lamps & Burners.
ExpiredGB190613813A
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