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Expired
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Everett Phillip Allen
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Individual
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Individual
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Publication of GB190704981ApublicationCriticalpatent/GB190704981A/en
4981. Allen, E. P. March 1, 1906, [date applied for under Patents Act, 1901]. Lift valves; casings.-A lift valve B' is guided by tongues C' and slots C<1> in the casing C, and is actuated by a threaded spindle B<2>. The spindle is packed by a ring F contained between a collar F<1> on the spindle and a shoulder D' on the casing, which are pressed together by a spring E. A ball-bearing E<3> is inserted between the end of the spring and the thrust nut E<1>. A nut I prevents the downward. movement of the spindle when the valve is being opened.
GB190704981D1906-03-011907-03-01Improvements in Valves.
ExpiredGB190704981A
(en)