Improvements in the Manufacture of Artificial Leather or Leather Boards for Glazing Paper and for other purposes.
Year: 1894

page_text: Date of Application, 1st Feb., 1894
Complete Specification Left, 1st Nov., 1894-Accepted, 8th Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Artificial Leather or Leather
Boards for Glazing Paper and for other purposes.
I HENRY ROYALL MINNS of Maidenhead in the County of Berkshire, Engineer,
do hereby declare the nature of this invention to be as follows:-
The first part of this invention consists in thoroughly cleansing the fibrous
materials employed and making them absorbant, this I do after the said fibrous
materials are consistently reduced to a pulp by a suitable machine by adding
prepared chalk or whitening to cleanse the fibre, and its adhesion to the same will
cause it to quickly absorb whatever colouring or sizing ingredients (which may then
also be added), thus a great saving in these said ingredients from being carried
away with the water, is effected.
At this stage of the operation it is passed to another suitable machine or to
moulds and made into sheets or boards to the required size and thickness and when
sufficiently dry I apply a glazing solution made from vegetable and animal matter
consisting of starch, gelatine and turpentine about ten per cent. of the latter. This
solution can also be coloured and a mordant is added to give fixity to the colouring
and to give any tint that may be desired, I do not confine myself to any exact
quantities of these separate ingredients as this will depend upon the nature of the
material under treatment. Boards or papers made according to this invention will
be found to produce (when finished) a highly glazed surface and will stand a much
greater pressure for glazing purposes than have hitherto been produced and will
cost much less in production.
The second part of this invention consists in the first instance of only fraying the
sole leather cuttings or other scraps and fibres into fine threads mixed with the
whitening, the liquid is then drawn off and when thoroughly dry it will be found
pregnant with the whitening, I then add a sufficient quantity of linseed or other
suitable oils with about twenty per cent. of turpentine, the whole is then pulverized
to the consistency required and can then be rolled into sheets or blocks or be
moulded into numerous shapes or designs and is applicable for various useful
purposes and will be found to be impervious to damp.
Dated this 1st day of February 1894.
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Artificial Leather or Leather
Boards for Glazing Paper and for other purposes.
I HENRY ROYALL MINNS of Maidenhead in the County of Berkshire, 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 :-
The first part of this invention consists in thoroughly cleansing the fibrous
materials employed and making them absorbent, this I do after the said fibrous
materials are consistently reduced to a pulp by a suitable machine by adding
prepared chalk or whiting to cleanse the fibre, and its adhesion to the same will
cause it to quickly absorb the coloring or sizing ingredients, which may then be
Dill

page_text: added. Thus a great saving in the said ingredients, from being carried away with
the water, is effected.
At this stage of the operation the pulp is passed to another suitable machine or
to moulds and made into sheets or boards to the required thickness and when
sufficiently dry I apply a glazing solution made from vegetable and animal matter,
consisting of starch, gelatine and turpentine, about ten per cent. of the latter. This
solution can also be colored; and a mordant is added to give fixity to the coloring
and to give any tint that may be required, I do not confine myself to any exact
quantities of these separate ingredients as this will depend upon the nature of the
material under treatment. Boards made according to this invention will be found
to produce (when finished) a highly glazed surface and will stand a much greater
pressure for glazing purposes than any that have hitherto been produced and will
cost much less in production.
The second part of this invention consists in the first instance in only fraying the
sole leather cuttings or other scraps and fibres into fine threads mixed with
whiting, the liquid is then drawn off and when the frayed scraps are thoroughly
dry they will be found pregnant with the whiting. I then add a sufficient quantity
of linseed or other oils with about twenty per cent. of turpentine, the whole is then
pulverized as required and can then be rolled into sheets or blocks or be moulded
into numerous shapes or designs and is applicable for glazing paper and for various
useful purposes.
Boards manufactured as above will be impervious to damp.
Having now 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 :-
(1.) The improvements in the manufacture of glazed boards and artificial leather
or leather boards, consisting of utilizing the leather and the fibrous substances in
combination with the whiting as an absorbent for the coloring and glazing solution
substantially as set forth.
(2.) The glazing solution consisting of starch gelatine and turpentine substan-
tially as set forth.
(3.) Fraying and drying the leather scraps, the mixture of the whiting solution
as an absorbent combined with the mixture of oils and turpentine substantially as
set forth.
(4.) The improvements in the manufacture of glazed boards or boards for
glazing purposes, artificial leather or leather boards substantially as set forth.
Dated this First day of November 1894.
DROWNE & CO.,
9, Warwick Court, W.C., Agents for the Applicant.
DROWNE & CO.,
9, Warwick Court, W.C., Agents for the Applicant.