Early U.S. Wood Paper-Pulp Patents
- 29 May 1855 - US Patent 12,978 - "Improvement in Preparing
Wood for
Paper-Pulp," Milton D. Whipple of Charlestown,
Massachussetts.
- 18 Jul 1854 - U.S. Patent 11,343 - "Improvement in the
Manufacture of Paper From Wood," Charles Watt
and Hugh Burgess of London, England who held a British Patent dated 19 Aug
1853 for their process.
- 31 Mar 1794 - "Manufacturing paper," John Biddis of
Pennsylvania, possibly a patent referring to the first use in the
U.S. of wood pulp in paper manufacture, suggested in an
apparent quote
from "New York Magazine," Sept 16, 1795.
"A very interesting discovery
has lately been made in the State of Pennsylvania, in the art of paper
making by Mr. Biddis. It is likely to reduce the price of that
important article, by producing a savings of rags. The invention
consists of reducing saw dust to a pulp, mixing it with the pulp of
rags, and forming the paper from this mixture. We have seen a specimen
of paper made in this manner, certified to be composed of one-fourth
sawdust, the remainder of rags. The body and surface of the paper
appear as good as usual; colour verges a trifle towards a greenish
yellow, which we think could be effectually remedied by indigo.
We understand that
in a paper of a coarser kind, a great proportion of saw dust may be
used, even in some as far as three-fourths. Mr. Biddis has erected a
mill upon the
principle of his invention, and taken out a patent, a right to which he
proposes selling to one person in each of the States. The saw dust of
all our woods may be used for the manufacture, though some are more
prefereable than others."
This
was quoted in a letter to "The
Magazine of American History with Notes and Queries," by
John Austin Stevens, Vol XIII, Jan-Jun 1885,
page 406. (The details of the patent were lost in the Patent Office fire of 1836 which destroyed all the records there.)