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Expired
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Carl Lehmann
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Individual
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Individual
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Publication of GB190623069ApublicationCriticalpatent/GB190623069A/en
Joints That Cut Off Fluids, And Hose Joints
(AREA)
Protection Of Pipes Against Damage, Friction, And Corrosion
(AREA)
Abstract
23,069. Lehmann, C. Oct. 18. Screw unions. - In a screw coupling for hose a n d other pipes, the external screw-thread a of the part b is.provided with a protecting-cover e, formed in one piece with or suitably connected to the part b. To protect the internal screw-thread on the nut d, the first thread thereof is set back at m.
GB190623069D1906-10-181906-10-18Improvements in Couplings for Hoses, Pipes and the like.
ExpiredGB190623069A
(en)