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US Patent: RE18,832
Tool attachment device
Patentee:
Ewald A. Arp - Minneapolis, MN

USPTO Classifications:
408/234, 408/79

Tool Categories:
specialty tools : automotive tools
trade specific : automobile mechanic
metalworking tools : boring bars

Assignees:
Van Norman Machine Tool Co. - Springfield, MA

Manufacturer:
Van Norman Machine Tool Co. - Springfield, MA

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 16, 1932
Granted: May 16, 1933

Reissue Information:
Reissue of 1,881,993 (Oct. 11, 1932)

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Van Norman Machine Tool Co.
Description:
Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034.

This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."

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