US Patent: 191,026
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Tool For Tightening and Fastening Straps For Securing Hose To Coupling
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Patentee:
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John A. Caldwell (exact or similar names) - Boston, MA |
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Patent Dates:
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Applied: |
Apr. 19, 1877 |
Granted: |
May 22, 1877 |
Patent Pictures:
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John A. Caldwell patent May 22, 1877 |
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Stan Schulz
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Description: |
The tool is a pliers that is pivoted to expand the jaws when the handles are squeezed. It is designed to work with strap type hose clamps patented by Samuel Adlam, Jr. and assigned to John Caldwell (pat. no. 190,728). Caldwell Hose Straps and these pliers appear in hardware catalogs well into the 20th Century.
Caldwell patented another version to work with a single strand wire clamp later in 1877. (Patent no. 197,717). |
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