Improvements in the Treatment of Tar and Pitch.
Year: 1890

page_text: Date of Application, 26th Aug., 1890
Complete Specification Left, 26th May, 191-Accepted, 4th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Tar and Pitch.
I, WILLIAM HENRY NEVILL of Ferryside in the County of Carmarthen
Engineer do hereby declare the nature of this invention to be as follows:-
My invention has for its object the treatment of tar or a mixture of tar and
pitch in any required proportions whereby they can be used to greater advantage
than heretofore in the various purposes to which these substances are applicable.
To effect this I make use of pulp or the ordinary paper of commerce which I use
in the proportion of about one to two per cent. of the tar or mixture above referred
to. I do not confine myself to any particular sort of paper or pulp but I prefer the
coarser or brown qualities.
In preparing ordinary brown or other paper for the foregoing purpose prefer
to make use of boiling water or steam to soften it and I then submit it to any con-
venient mode of disintegration by machinery or by hand, or I may use the paper if
desired without such preparation.
The pulp or disintegrated paper.is then added to the tar or mixture in about the
above named proportions and heated for several hours, during which time it is
frequently stirred; if the tar is to be used for lubricating or certain other purposes,
I prefer to pass the heated mixture through a strainer, but this is not always
necessary.
Tar, or a mixture of tar and pitch, treated in the manner above described,
becomes changed in quality and general character, and may be used with advantage
in the manufacture of patent fuel, for road making, and for various other purposes.
In the manufacture of patent fuel, the mixture of the materials referred to in the
foregoing description with the coal or other material to be used, may be made at
the same operation in the ordinary way now in use, but I prefer to prepare the tar
or pitch and tar described separately and afterwards to mix with coal or other
material in the ordinary way.
I do not confine myself to the proportions I have named, which may be varied to
suit the purpose required.
Dated this 26th day of August 1890.--
WM. HY. NEVILL.
By Harris & Mills,
23, Southampton Buildings, London, Agents.
COMPLETE SPECIFICATION.
Improvements in the Treatment of Tar and Pitch.
I, WILLIAM HENRY NEVILL, of Ferryside, in the County of Carmarthen,
Engineer, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention has for its object the treatment of tar, or a mixture of tar and
pitch in any required proportions, whereby they can be used to greater advantage
than heretofore in the various purposes to which these substances are applicable.
To effect this I make use of pulp made of wood or other vegetable matter, or I
use any ordinary paper of commerce, which I use in the proportion of about one to
two per cent. of the tar or mixture above referred to. I do not confine myself to
any particular sort of paper or pulp, but I prefer the coarser or brown qualities.
In preparing ordinary brown or other paper for the foregoing purpose, I prefer
Price 4d.]

page_text: to make use of boiling water or steam to soften it, and I then submit it to any
convenient mode of disintegration by machinery or by hand, or I may use the
paper if desired without such preparation.
The pulp or disintegrated paper is then added to the tar or mixture in about the
above named proportions and heated for several hours, during which time it is
frequently stirred if the tar is to be used for lubricating or certain other purposes,
I prefer to pass the heated mixture through a strainer, but this is not always
*necessary.
!
Tar, or a mixture of tar and pitch, treated in the manner above described,
becomes changed in quality and general character, and may be used with
advantage in the manufacture of patent fuel, for road making, and for, various
other purposes.
"In the manufacture of patent fuel, the mixture of the materials referred to in the
foregoing description with coal or other material to be, used, may be, made at the
same operation in the ordinary, way now in use, but I prefer to prepare the tar or
pitch and tar as described separately and afterwards to, mix,, with coal or other
material in the ordinary way.
I do not confine myself to the proportions I have named, which may be varied to
suit, the purpose required.
I would here remark that my invention is applicable to the treatment of every
description of tar and pitch, whether arising from the distillation of coal or from
other sources.
"Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The treatment of tar and pitch by the process herein described.
2. The treatment of tar and pitch by mixing therewith pulp or paper and heating
the same for several hours, during which it is frequently stirred, substantially as
herein described.
Dated this 26th day of May 1891.
Dated this 26th day of May 1891.
WM. HY..NEVILL.
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.