GB Patent: GB-798,182
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Improvements in stamping or other hammers
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Patentees:
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Philip Charles Newton Pickworth (exact or similar names) - Stockport, County of Chester, England |
Francis Bainbridge (exact or similar names) - Manchester, County of Lancaster, England |
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Patent Dates:
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Applied: |
Oct. 20, 1954 |
Granted: |
Jul. 16, 1958 |
Espacenet patent
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Jeff Joslin Vintage Machinery entry for B. & S. Massey
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Description: |
Hammer where the upstroke is hydraulically powered and the downstroke is via gravity. The improvement is to shorten the downstroke by assisting it with a pneumatic spring. |
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