CA Patent: CA-65,452
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| Power hammer
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Patentee:
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| William Hartill Law (exact or similar names) - Peterborough, ON Canada |
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Patent Dates:
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| Applied: |
Oct. 23, 1899 |
| Granted: |
Dec. 21, 1899 |
CIPO Data
Espacenet patent
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Jeff Joslin
"Vintage Machinery" entry for Central Bridge & Engineering Co.
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Description: |
| This power hammer provides adjustable force while using full stroke, and higher speed on the downstroke than on the upstroke. For the US equivalent of this patent, see 612,949. |
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