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David Roberts
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Individual
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Individual
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Publication of GB190411057ApublicationCriticalpatent/GB190411057A/en
11,057. Roberts, D. May 13. Pistons.-The joint in a split packing-ring R, Fig. 2, for a piston, piston valve, or pump bucket is covered by a plate T, Fig. 5, having flanges t<1> lying in recesses in the ends L of the ring. The plate L is secured to one end of the ring by screws. The whole plate T may be let into the packing-ring.
GB190411057D1904-05-131904-05-13Improved Packing Ring for Pistons and Valves.
ExpiredGB190411057A
(en)
Improvements in and relating to Packing particularly adapted for use in connection with Flat Slide Valves, Piston Slide Valves, Pistons and like Moving Parts.