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Alexander Black
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Publication of GB189725673ApublicationCriticalpatent/GB189725673A/en
25,673. Black, A. Nov. 5. Tyres, pneumatic.-In those inflating-valves which are secured to the air tube by means of a nut A screwed on to the valve stem B, the stem is provided with a flat surface B'. A piece of thin metal A, adapted to fit on to the nut A, is provided with a hole A<2> to correspond with the crosssection of the valve stem, whereby the nut is prevented from rotating by placing over it the piece A'. In a modification, the piece A' may have a projecting pin which fits into a corresponding bole in the nut A.
GB189725673D1897-11-051897-11-05Improvements in and relating to Valves for Pneumatic Tyres for Cycles and other Vehicles.
ExpiredGB189725673A
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