Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 559,558
Friction-clutch
Patentees:
Alexander Lesperance (exact or similar names) - Laconia, NH
Thomas H. Worrall (exact or similar names) - Laconia, NH

USPTO Classifications:
192/70.15, 192/70.24

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking power transmission
industrial machines : industrial machine mechanisms : industrial machine clutches

Assignees:
Thomas H. Worrall - Laconia, NH

Manufacturer:
American Twist Drill Co. - Laconia, NH

Witnesses:
Edgar E. Smith
Charles F. Locke

Patent Dates:
Applied: Mar. 18, 1893
Granted: May 05, 1896

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for A. B. Nutting & Co.
Description:
A double-ended grinder arbor with separate clutches for each wheel is reported. It has "A. B. Nutting & Co. / Amesbury Mass. / Patent Applied For" cast into the bearing covers; a separate brass plaque says, "Am. Twist Drill Co. / Laconia, N.H. / Patented Nov 24, 91 / May 5, 96 / July 13, 97 / June 28, 98 / Oct. 30, 06"

Assignee Worrall was co-founder of the American Twist Drill Co.

Copyright © 2002-2024 - DATAMP