Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,301,937
Belt-tightener
Patentees:
Alden M. Drake (exact or similar names) - Worcester, MA
James N. Heald (exact or similar names) - Worcester, MA

USPTO Classifications:
474/117, 474/89

Tool Categories:
metalworking machines : grinding machines

Assignees:
Heald Machine Co. - Worcester, MA

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Dec. 17, 1917
Granted: Apr. 29, 1919

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Heald Machine Co.
Description:
Southgate & Southgate - patent attorneys

"This invention relates to a belt tightener of a type adapted to simultaneously tighten belts running therefrom in two different directions. This type of belt tightener is found particularly useful in internal grinders and other similar machines in which a rapidly rotating spindle is mounted upon a movable cross-slide."

Copyright © 2002-2024 - DATAMP