US Patent: X1,114 - Double podded central screw auger


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 1,114X

Double podded central screw auger

Patentee:

Ezra L'Hommedieu (exact or similar names) - 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 (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin (dm)

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.