Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 198,685
Improvement in wrenches
Patentee:
Sylvanus Edward Robinson (exact or similar names) - Newark, NJ

USPTO Classifications:
81/73

Tool Categories:
wrenches : brace wrenches

Assignees:
None

Manufacturer:
Sylvanus Robinson - Newark, NJ
P. Lowentraut Manufacturing Co. - Newark, NJ

Witnesses:
W. H. Abraham
I. W. Consegia
Robert Everett
George E. Upham

Patent Dates:
Applied: Nov. 10, 1877
Granted: Dec. 25, 1877

Patent Pictures: [ 1 | 2 | 3 ]
Sylvanus E. Robinson patent Dec. 25, 1977
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
One known example marked "Robinsons Crank Wrench & Bit Brace Newark N.J. Pat. Jan. 26, 1875, Dec. 25, 1877"

One strange variant (see also Robinson's Jan. 26, 1875 patent no. 159,119) has a hammer poll for the crank handle, with the frame extended to form a claw -- the fulcrum point for the claw would "clash" with the knob for the jaw adjusting screw.

Copyright © 2002-2024 - DATAMP