Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 22,157
Wrench
Pipe-Tongs
Patentee:
James R. Brown (exact or similar names) - Boston, MA

USPTO Classifications:
81/400

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Allan Beach - Boston, MA
E. H. Ashcroft Co. - Boston, MA
J. J. Walworth & Co. - Boston, MA
Ashcroft Mfg. Co. - Boston, MA

Witnesses:
R. H. Eddy
F. P. Hales

Patent Dates:
Granted: Nov. 30, 1858

Patent Pictures: [ 1 | 2 ]
James R. Brown patent Nov. 30, 1858
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Ashcroft v. Walworth
Description:
Brown's patent pipe tongs had the fulcrum point in a block which could be moved by an adjusting screw. Brown's Pipe Tongs (with later refinements) was a "staple" tool for plumbers etc. for decades. Late 19th & early 20th Century catalog illustrations show a patent extension dated Nov. 30, 1872 -- the Patent Gazette notes it Nov. 19, 1872, antedated to Jan. 10, 1872). Brown patented an "improvement" on July 7, 1868 (Pat. No. 79,724).

Brown became insolvent in 1860; Edward H. Ashcroft subsequently acquired rights to the Brown patent, and filed suit against J.J. Walworth Co., which had a competing claim to the rights and had been marketing Brown's pipe tongs. Ashcroft won the suit [Ashcroft v. Walworth (1872)]. Ashcroft registered his "arm & hammer over the initials EHA" trade mark for the tongs Nov. 7, 1876 (trade mark no. 4102).

From trade ads, etc. it appears other firms may have made and sold Brown's Pipe Tongs. Allan Beach (Boston) late 1860s advertising showed Brown style pipe tongs; he also was assignee of H.H. Gilmore reissue patent RE2283.

Copyright © 2002-2024 - DATAMP