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US Patent: 1,087,625
Valve Truing Tool
Patentee:
Frans O. Albertson - Sioux City, Woodbury County, IA

USPTO Classifications:
82/172

Tool Categories:
specialty tools : valve grinding tools

Assignees:
None

Manufacturer:
Albertson & Co. - Sioux City, Woodbury County, IA

Witnesses:
G. W. Barr
James Wallace
George A. Hurlburt
M. Burkhead

Patent Dates:
Applied: Apr. 07, 1913
Granted: Feb. 17, 1914

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Albertson & Co., Inc.
Description:
The first of two patents listed in advertising for the SIOUX VALVE REFACING TOOL (see pat. no. 1,285,573).

This tool resembles the NOONAN valve truing tool based on patent no. 926,957.

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