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Expired
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Dan Mason
Charles Mason
Stephen Henry Burdett
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Individual
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Publication of GB190717446ApublicationCriticalpatent/GB190717446A/en
17,446. Mason, D., Mason, C., and Burdett, S. H. July 30. Punching.-Blanks punched from metal plates in the machine described in Specification No. 17,445, A.D. 1907, are removed from the bottom dies k by an air blast from nozzles f, f<1>, or through passages l in the dies. The nozzles f, f<1> are carried on a plate mounted as described in the above-mentioned Specification. The supply of air to the nozzles or dies is controlled by a cam-operated valve.
GB190717446D1907-07-301907-07-30Improvements in Cutting-out Presses for Sheet Metal.
ExpiredGB190717446A
(en)