US Patent: 1,674,813
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Propelling jack
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Patentees:
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Gailard E. Weaver (exact or similar names) - Springfield, IL |
Ira A. Weaver (exact or similar names) - Springfield, IL |
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Patent Dates:
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Applied: |
Mar. 23, 1925 |
Granted: |
Jun. 26, 1928 |
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Jeff Joslin Vintage Machinery entry for Weaver Mfg. Co.
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Description: |
This appears to be an improvement to the famous Walker jack of patent 1,437,606 that provides a leverage assist to moving a vehicle horizontally as well as vertically. |
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