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US Patent: 1,691,320
Attachment for lathes
Patentee:
Harris Morgan Whitcomb (exact or similar names) - Albany, WI

USPTO Classifications:
82/131, 82/152

Tool Categories:
metalworking machines : metal lathes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Aug. 24, 1925
Granted: Nov. 13, 1928

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for A.H.S. Manufacturing Co.
Description:
"The primary object of this invention is to produce in a rapid, efficient and economical manner a leakproof sectional piston ring so formed as to hold its true circular form at all degrees of expansion and contraction, regardless of temperature, and which is adapted for application to variously sized cylinders without trimming or fitting or the exercise of even ordinary mechanical skill."

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