Improvements in or relating to the Manufacture of Paper Pulp.
Year: 1892

page_text: Date of Application, 13th Sept., 1892
Complete Specification Left. 9th Feb., 1893-Accepted, 11th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Manufacture of Paper Pulp.
I, HENRY JAMES BIRD, of No. 1121 Garden Street, Hoboken in the State of
New Jersey, United States of America, Manufacturer, do hereby declare the nature
of this invention to be as follows:-
The contents of the paunches in slaughtered animals have heretofore been useless,
because the grass, hay, and similar materials are not in a condition adapted to use
as a manure or fertilizer, and where animals are slaughtered on an extensive
scale, difficulty has arisen in disposing of the contents of the paunches, and
considerable expense has been involved in so doing.
By my present invention such contents are rendered valuable, and the expense
connected with their disposal prevented. In an ordinary paunch about two thirds
of the contents are liquid and the remaining third is composed of grass, hay, straw,
or similar materials in a softened condition resulting from the action of the gastric
juices, and my invention relates to the treatment of this material in the following
manner for the production of stock.
paper
The contents of the paunch, including the liquid materials, are emptied into
a suitable boiler, together with lime or similar material, and the same are boiled
under a pressure of about seventy pounds to the inch, more or less, and in so
doing the fibrous materials are disengaged and softened, after which the materials
are passed into an ordinary beating or pulping engine, for the separation of the
fibres and the washing out of the gelatinous and other substances that have been
dissolved in the boiling operation.
I have discovered that the presence of the gastric juices in the boiling operation,
renders it necessary to use but a comparatively small quantity of lime or similar
material, and the gastric juices thereby effect a saving in the treatment of the
vegetable fibre, and by this improved process any preliminary washing is rendered
unnecessary.
The source from which the gastric juice is derived is the paunches of slaughtered
cattle, and usually the paunch contains as much vegetable material as the gastric
juice is adapted to operate upon, but when that is not the case other vegetable
material can be added so as to utilize all the gastric juice.
Dated this 13th day of September 1892.
BREWER & SON,
Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Paper Pulp.
I, HENRY JAMES BIRD, of No. 1121 Garden Street, Hoboken in the State of
New Jersey, United States of America, Manufacturer, 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 :-
The contents of the paunches in slaughtered animals have heretofore been useless,
because the grass, hay and similar materials are not in a condition adapted to
use as a manure or fertilizer, and where animals are slaughtered on an extensive
scale, difficulty has arisen in disposing of the contents of the paunches, and
considerable expense has been involved in so doing.
By my present invention such contents are rendered valuable and the expense
connected with their disposal prevented. In an ordinary paunch about two-thirds
of the contents are liquid and the remaining third is composed of grass, hay,
straw or similar materials in a softened condition resulting from the action of the

page_text: gastric juices, and my invention relates to the treatment of this material in the
following manner for the production of paper stock.
The said paunches contain the gastric juices with which the grasses and other
materials are mixed, and when emptied from such paunches there is considerable
fine fibrous material that has been separated by the action of the gastric juices.
It is advantageous to separate this fine material and the coarser materials,
and in some cases all the contents of the paunch are placed in a suitable boiler,
the gastric juices and liquid material also being present and lime or equivalent
material such as an alkali is introduced in the proper proportion according to
the condition of the fibrous material, and a proper heat is applied to soften and
separate the fibrous substances. This is advantageously effected in a closed vessel,
and the pressure may be raised to any desired height, say seventy pounds to
the inch more or less. After this the materials are usually passed into an
ordinary beating or pulping engine, for the separation of the fibres and the
washing out of the gelatinous and other substances that have been dissolved in
the boiling operation.
I have discovered that the presence of the gastric juices in the operation
renders it necessary to use but a comparatively small quantity of lime or similar
material, and the gastric juices thereby effect a saving in the treatment of the
vegetable fibre, and by this improved process any preliminary washing is rendered
unnecessary.
The source from which the gastric juice is derived is the paunches of slaughtered
cattle, and usually the paunch contains as much vegetable material as the gastric
juice is adapted to operate upon, but when that is not the case other vegetable
material can be added so as to utilize all the gastric juice.
The finer vegetable fibres which may have been separated before lime or
similar material was added may be used for one quality of paper, or the same may
be placed with the materials treated as aforesaid in the pulping engine, and in all
cases paper may be made entirely of the fibre from the paunch or only partially so
by mixing other fibres therewith.
Having pow particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
:
First The method herein specified of utilizing the contents of the paunches
of slaughtered animals, consisting of utilizing the gastric juices in the disintegration
of the vegetable fibre for the production of paper stock, substantially as set forth.
Second: The method herein specified of disintegrating vegetable substances
and separating the fibre for paper stock, consisting in subjecting such vegetable
material to the action of gastric juices in the presence of sufficient heat to render
such gastric juices efficient in the disintegration of the material and washing out
the other substances for the separation of the fibre, substantially as set forth.
Third The method herein specified of disintegrating vegetable fibre for the
production of paper stock, consisting in subjecting such vegetable fibre to the
action of gastric juices and an alkali in the presence of sufficient heat to render
such gastric juices efficient and washing the other substances from the fibre,
substantially as set forth.
Fourth: The method herein specified for disintegrating and separating the
vegetable substances contained in the paunches in slaughtered cattle, consisting
in adding thereto an alkali, such as lime, heating the same in a suitable vessel,
and subjecting such material to a beating or pulping operation for separating
the fibres and washing out the softened materials to obtain paper stock, substantially
as set forth.
Doted this 0th 2
1000