US Patent: 966,105 - Automatic die-head


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US Patent: 966,105

Automatic die-head

Patentee:

Joseph P. Lavigne (exact or similar names) - Detroit, MI

USPTO Classifications:

279/37, 408/154, 408/159, 408/74

Tool Categories:

industrial tools : taps and dies

metalworking tools : taps and dies

Assignees:

None

Manufacturer:

Greenfield Tap & Die Corp. - Greenfield, MA

Witnesses:

C. R. Stickney

A. M. Dorr

Patent Dates:
Applied:	Jun. 20, 1908
Granted:	Aug. 02, 1910

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Greenfield Tap & Die Corp.

Description:

"This invention relates to die heads for turret lathes, screw machines and the like, and especially to means therein whereby work engaged by the die is released at the end of the cutting movement and may be withdrawn without contact with the dies."

The "Wells Self-Opening Die" is featured in a catalog of machine tools from Greenfield Tap & Die Corp.; the illustration resembles this patent and the page says "Patented August 2, 1910".