Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 275,335
Tool For Grasping and Holding Articles
Thomas G. Hall - Brooklyn, NY

USPTO Classifications:
269/218, 269/220, 269/221, 269/256

Tool Categories:
wrenches : brace wrenches
work holding : vises : hand vises

Isaac N. Cook - Yonkers, NY
Samuel B. McLane - Yonkers, NY

Not known to have been produced

E. B. Bolton
Geo. Bainton
Arthur C. Fraser
Henry Connett

Patent Dates:
Applied: Nov. 29, 1882
Granted: Apr. 03, 1883

Patent Pictures:
Thomas G. Hall patent April 3, 1883
USPTO pdf tiff
Google Patents
Report data errors or omissions
The base and upper portion of the jaws are both adjustable by screws. The piece could be a stand-alone hand vise, or the jaws of a combination brace wrench. It is described as an improvement to the J. Goodrich May 18, 1880 patent (no. 227,686). The improvement is is supplemental cross-pieces or keyway-shaped tails of the movable jaws to counteract torsional strain.

Samuel B. McLane's parallel patent (no. 275,341) is another variation of the same idea.

Copyright © 2002-2018 - DATAMP