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FR Patent: FR-489,933
Machine à canneler et détalonner les mèches américaines
Machine for sharpening helicoidal drill tips
Patentees:
Herbert Hunt - Manchester, England
Herbert William Hunt - Manchester, England
Percy Hunt - Manchester, England

USPTO Classifications:

Tool Categories:
metalworking machines : grinders : drill grinders
metalworking machines : grinders : sharpening machines : drill sharpening machines
tool making : making drills and augers

Assignees:
None

Manufacturer:
Herbert Hunt & Sons, Ltd. - Manchester, England

Witnesses:
Unknown

Patent Dates:
Applied: May 01, 1918
Granted: Mar. 22, 1919

Patent Pictures:
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"Vintage Machinery" entry for Herbert Hunt & Sons, Ltd.
Description:
This design was later improved in French "E" series patent FE-23,110.

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