US Patent: 2,711,461
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| Portable electric tool handle assemblies
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Patentee:
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| Reynold Happe (exact or similar names) - Pittstown, NJ |
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Patent Dates:
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| Applied: |
Dec. 24, 1953 |
| Granted: |
Jun. 21, 1955 |
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Jeff Joslin
Vintage Machinery entry for Black & Decker Mfg. Co., Ltd.
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Description: |
| This invention removes the need for screws to secure the switch in the handle of an electric drill, and was used on the Black & Decker Models U-1 and U-3 1/4-inch electric drills, as seen in a 1957 advertisement. Examples are labeled with the patent number. The assignee, sewing-machine maker Singer Mfg. Co., had a division, Diehl Mfg., that made electrical products as well as handheld power tools that were primarily sold under the Sears "Craftsman" brand. It seems most plausible that Singer/Diehl manufactured the switch itself which was then used by B&D. |
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