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US Patent: 1,114X
Double podded central screw auger
Patentee:
Ezra L'Hommedieu - Saybrook, CT

USPTO Classifications:
408/214, 408/230

Tool Categories:
woodworking tools : hand drills : drill bits : auger bits

Assignees:
None

Manufacturer:
Ezra L'Hommedieu - Chester, CT
L'Hommedieu & Watrous Co. - Chester, CT

Witnesses:
Obadiah Platts
Elijah Worthington

Patent Dates:
Granted: Jul. 31, 1809

Patent Pictures:
USPTO pdf tiff
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Description:
Ezra L'Hommedieu was a ship carver who invented the double-twist auger, patented here. He went on to manufacture this tool, receiving several additional patents for augers, gimlets, and their manufacture. Two patents, granted 1830-10-01 and 1835-02-11 were lost in the 1836 patent-office fire and were not restored.

Directory of American Toolmakers (DAT) has a fair bit of information on L'Hommedieu. L'Hommedieu's manufacturing operations were purchased in 1879 by Henry L. Shailer, who already held an auger patent. Shailer ran the factory himself for a time, but in 1881 he sold the operations to his father-in-law: Russell Jennings.

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