Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 3,590
Rule or Measure for Boards, Leather, &c.
Revolving Board Rule
Patentee:
Charles Ross - Piqua, OH

USPTO Classifications:
33/773

Tool Categories:
rules : lumber rules

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Warner Spencer
Thos. S. Matthew

Patent Dates:
Granted: May 17, 1844

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
This is a strange little machine that uses a rolling wheel and graduated disk to measure a length. With some clever setup, this tool can be used to calculate area and volume, acting as a board rule.

Copyright © 2002-2017 - DATAMP