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US Patent: 203,571
Improvement in drill and lathe chuck attachments
Patentee:
David E. Whiton (exact or similar names) - West Stafford, CT

USPTO Classifications:
279/115

Tool Categories:
metalworking machines : metal lathes : metal lathe chucks

Assignees:
None

Manufacturer:
D. E. Whiton Machine Co. - New London, CT

Witnesses:
Edward Whiton
Julius Carrush

Patent Dates:
Applied: Apr. 15, 1878
Granted: May 14, 1878

Patent Pictures:
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Vintage Machinery entry for D. E. Whiton Machine Co.
Description:
"My invention relates to a new and useful attachment for drill and lathe chucks, for the purpose of operating the jaws of the chuck to and from each other; and this my invention consists of a detachable bearing, in which is located a worm-shaft operated by means of a suitable handle, in combination with a worm-gear on the back plate or movable part of the chuck, by which arrangement the chuck can be very easily operated, so as to open or close the jaws simply by temporarily attaching the detachable bearing carrying the worm-shaft, and turning the handle thereof in the desired direction..."

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