US Patent: 444,635
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Bolt and Rivet Cutter
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Patentee:
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John Helwig (exact or similar names) - Dubuque, IA |
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Patent Dates:
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Applied: |
Jul. 10, 1890 |
Granted: |
Jan. 13, 1891 |
Patent Pictures:
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John Helwig patent Jan. 13, 1891 |
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Stan Schulz
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Description: |
Features of the patented device address heavy-duty cutting such as locomotive boiler rivets and stay-bolts. The basic form reflects John Hellwig's March 6, 1877 patent no. 188,133.
Both patent dates are shown in 1895 advertisements for the Helwig Mfg. Co. (St. Paul, Minn.) bolt and rivet cutter. The tool shown there matches the earlier patent.
Corresponding British patent GB-198100892 was registered Jan. 17, 1891. |
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