Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 67,721
Improved apparatus for moulding plates of lead
Patentee:
Stillman E. Chubbuck (exact or similar names) - Boston, MA

USPTO Classifications:
164/338.1, 249/137

Tool Categories:
specialty machines : foundry machines : casting molds

Assignees:
Joseph H. Chadwick - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Phineas B. Smith, Jr.
A. Parker Newman

Patent Dates:
Granted: Aug. 13, 1867

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for S. E. Chubbuck & Sons
Description:
The innovation is a mould with steam chambers so that it can be pre-heated to prevent the lead from cooling too quickly.

Copyright © 2002-2025 - DATAMP