Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 450,978
Work-centering apparatus
Patentee:
John Rogers - North Adams, MA

USPTO Classifications:
408/106, 82/150, L408/77

Tool Categories:

Assignees:
James Hunter & Son - North Adams, MA

Manufacturer:
Not known to have been produced

Witnesses:
Herbert E. Wetherbee
James D. Hunter

Patent Dates:
Applied: Nov. 28, 1890
Granted: Apr. 21, 1891

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for J. Hunter & Co.
Description:
This invention relates to apparatus for centering and truing the center of pieces of work, and is especially adapted, among other things, to be used in finding the center and truing the center of shafts, spindles, gudgeon, and other cylindrical objects."

Copyright © 2002-2019 - DATAMP