Improvements relating to Paper Machinery for the Manufacture of Decorated Paper and Pulp Boards.
Year: 1895

page_text: Date of Application, 23rd Nov., 1895-Accepted, 22nd Feb., 1896
COMPLETE SPECIFICATION.
Improvements relating to Paper Machinery for the Manufacture
of Decorated Paper and Pulp Boards.
I, SAMUEL CRUMP, of No. 1827 Riverside Avenue, (Street) in the City of
Spokane, in the County of Spokane and State of Washington, 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 invention relates to improvements in the manufacture of decorated paper
and pulp boards, and consists particularly in the novel pattern mould hereinafter
described (whether of the cylinder, Fourdinier or hand type) and the methods
also hereinafter described for producing the mould.
In accordance with my invention the paper and straw or other pulp boards
during or after their process of manufacture have imparted to their upper or lower
or both surfaces permanent designs of any desired outline or pattern in pulp stock,
preferably of a color differing from that of the main body of the paper or board.
The designs in color form an integral part of the body of the paper or board, and
hence the latter after leaving the machine will possess a surface or surfaces bearing
permanent designs in as many colours and as elaborate in character as may be
desired. The general machine for producing the decorated paper and pulp boards
will possess in addition to the usual cylinder mould or moulds for making the body
of the board, one or more pattern moulds for forming in colored pulp the design or
decoration to be applied to the main body of the board. It is well known that in
the manufacture of plain board it is customary to employ several cylinder moulds,
each formning a layer of the pulp and delivering the same to the layer formed on
the succeeding mould in order that the requisite thickness of body may be secured,
and it is also customary to cover this board that it may have a white or colored
plain surface. In the paper making machine embodying my invention, the mould
which is to form the surface decoration will have provided upon it a fixed
imperforate pattern which will entirely exclude the pulp, while the remaining
portion of the surface of the mould is left in its usual open condition, whereby
the mould will be enabled to form its layer of colored pulp with an entirely open
design corresponding with the imperforate pattern of the mould. The layer of
pulp thus formed becomes an integral part of the surface of the board and hence
the design is permanent in character. As many of the pattern moulds may be
employed as desired in accordance with the particular effect it may be wished to
produce in the finished board. If it should be desired to decorate the board with
several colors a corresponding number of the pattern moulds should be employed
and the outlines formed thereon should be so arranged with respect to each other
as to secure the proper register in the finished design.
It may have heretofore been attempted to decorate board by means of pattern
cylinder moulds, but it is a fact, 1 believe, that never heretofore have any successful
results beyond an experimental stage been accomplished, owing to defects existing
in the pattern moulds as heretofore constructed. The object of the present
invention is to overcome the defects which have heretofore existed in pattern
moulds, and to produce a mould capable of effectually accomplishing the purposes
sought for it, and of that nature and construction rendering it permanently usefu
in a practical commercial sense. In accordance with my invention I am enable:1
to produce the most elaborate patterns on the mould and to successfully apply the

page_text: same in color to the surface or surfaces of the board whereby the latter instead of
having a plain surface may have imparted to its surface or surfaces elaborate
designs in color without material increase in the cost of manufacture. My present
invention is confined to the pattern mould and consists first in the methods I have
invented for producing the patterns on said mould, and, secondly, to the mould
itself as a new article of manufacture.
In
In accordance with my methods of producing the patterns on the moulds, I fill
in the meshes of the wire at the desired points to form the imperforate pattern
by electrical deposition, whereby the exterior surface of said pattern is left
smooth and hard and permanently capable of totally excluding the pulp.
the production of the pattern, I first protect the inner surface of the wire with
wax coated paper, wax, india rubber, gutta percha or any other suitable substance
that will resist electric action, the inner surface of the wire being coated with
this resisting substance, which will preferably be pressed into the meshes of the
wire until it has penetrated about half way through the same and covered the
lower longitudinal half of the wire. I thereafter prepare the design on the outer
side of the mould by painting or printing the same upon the wire with any material
which will resist electric action, or in lieu of painting or printing the design upon
the outer side of the mould, I may cut out the design from a sheet of wax coated
paper or other substance which will resist electric action and apply the same to the
wire, pressing the same firmly upon the wire so that the wax coating on the reverse
side of the sheet may enter the meshes of the wire and meet the protecting coating
which was previously applied to the inner surface of the wire. The pattern
applied to the outer surface of the wire will combine with the coating applied to
the inner surface of the wire to fully protect from electric action all of the wire
directly below the pattern. The pattern applied upon the outer side of the wire
whether by paint, printing, transferring, waxed paper or other substance or process
will by reason of its open outlines leave exposed through the wire meshes certain
surfaces of the inner coating of wax covered paper which surfaces will exactly
correspond in outline with the open work design formed by said pattern, and upon
these exposed wax surfaces I form a metal surface upon which electrical deposition
readily takes place. The metal surface just referred to may be formed by working
plumbago or other metallic conductor into the exposed wax surface or coating the
same with a metal solution-such, for example, as nitrate of silver. The wire
having been thus prepared with the open work pattern of material which will
resist electric action and with the metallic surface closely filling the open outlines
of said pattern, is submitted to an electric battery trough in order that the metal,
preferably copper, may deposit itself upon the said metallic surfaces, thereby
closing the meshes of the wire and producing a smooth, solid, permanent metal
pattern exactly conforming to the open outlines of the design, and which during
the manufacture of the paper will totally exclude the pulp. After the solid metal
pattern has thus been formed upon the mould by electric deposition, the inner wax
coated paper and the outer design in paper or paint or other substance are removed
from the wire, thus opening all of the meshes of the mould except those permanently
closed by said metal pattern.
Referring to the accompanying drawings, forming a part of this application,
Figure 1 is a top view of a cylinder mould constructed in accordance with and
embodying my invention;
Figure 2 is a top view of a detached portion of the wire for a mould and
illustrating the application to the outer surface thereof of the design it is intended
shall be reproduced upon the surface or surfaces of the board during the manufacture
of the latter; and
Figure 3 is an edge view of a detached portion of the wire for a mould and
illustrating the application to the inner surface thereof of the protecting coating
of waxed paper or other material, and to the outer surface thereof of the design,
leaving exposed between the surfaces of said design those portions of the wire it
is intended to render solid by means of electrical deposition.

page_text: In the drawings A designates the mould; B the solid portions thereof, which
exclude the pulp, and C the open portions thereof which define the outlines of the
design it is intended shall be applied to the surfaces of the board. The wire in
Figures 2 and 3 is lettered D. In Figure 3 the coating of waxed paper or other
substance applied to the inner side of the wire is designated by the letter E, and
the protecting substance of which the design is formed upon the outer surface of
said wire, by the letter F, while the reference letter G denotes the open spaces
between the portions of the design, and which spaces are filled by the electric
deposition, and when filled form solid permanent metal surfaces, denoted in Figure 1
by the letter B. The design to be applied to the mould may be of any outline or
character desired and hence in Figures 1 and 2, I illustrate two separate designs.
For the purposes of description, it may be assumed that the inner protecting
substance E is of waxed coated paper pressed into the meshes of the wire D, and
that the design F is also in wax coated paper pressed into the meshes of the
wire D, the facing wax coatings on the parts E, F, coming into contact with each
other through the meshes of the wire and thoroughly protecting the latter. The
wire having been thus prepared, is ready to have applied to the open spaces G the
metallic surfaces, such as plumbago, nitrate of silver or other suitable substance
and thereafter the wire will be submitted to the electric battery trough, wherein
the copper
or other metal will deposit upon the said metallic surfaces and
permanently form the imperforate pattern it is desired the mould shall have. Upon
the removal of the wire from the trough the inner protecting surface E and the
design F may be removed, leaving those portions of the wire protected by them
in their usual condition, while the copper or other metal deposited upon the
wire will fill the meshes thereof and form the permanent design. The mould thus
formed may be used continuously and the solid pattern thereof will exclude the
pulp, while the open surfaces of the wire between the outlines of said pattern will
constitute the design and take up the pulp and deliver the web thereof to the body
of the board, which will thus carry as an integral part the desired design in
pulp and of a character or color preferably different from the main body of the
board.
The general processes above pointed out may be varied to some extent without
departing from the scope or spirit of the invention. For example, the protecting
substance, such as wax, intended for the inner surface of the wire may have a
metallic or conducting surface applied to it before it is pressed against the wire in
lieu of after being placed in position; and in certain instances the inner protecting
substance may be omitted. When the inner protecting substance is employed it
will be found convenient to print the pattern by means of rubber stamps directly
against the outer surface of the wire, the rubber yielding to the wire and reaching
down through the meshes to the wax backing, thus dispensing with the painting or
cut-out patterns and facilitating the process of producing the mould.
The invention is not confined to any special type of mould and is applicable to
cylinder, Fourdrinier or hand moulds.
The mould constructed in accordance with and embodying my invention will
form the web of pulp possessing the open work designs with certainty, rapidity and
accuracy, and with such sharp, well defined outlines that said designs may be very
elaborate and artistic in character. The mould constructed as above described is
also very durable and the metal pattern is permanent, smooth and effectual.
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 method herein before described of forming a pattern on the wire of a
mould, which consists in applying to the wire a design in material which will resist
electrical deposition, forming metallic surfaces between the outlines of sail design,
and permanently depositing metal by electrical action upon said metallic surfaces
to form the pattern.

page_text: 2. The method hereinbefore described of forming a pattern on the wire of a
mould, which consists in applying to the reverse face of the wire a protecting
surface, which will resist electrical deposition, applying to the obverse face of the
wire the design in material which will resist electrical deposition, applying metallic
surfaces between the outlines of said design, and permanently depositing metal by
electrical action upon said metallic surfaces to form the pattern.
3. The method hereinbefore described of forming a pattern on wire which consists
in applying the design upon the wire in material which will resist electrical
deposition, forming metallic surfaces between the outlines of said design, and
depositing metal by electrical action upou said metallic surfaces to form a permanent
pattern.
4. The method herein before described of forming a pattern on the wire of a
mould, which consists in applying to the reverse side of the wire a protecting
surface of wax or other resisting material pressed into the meshes of the wire,
applying to the obverse face of the wire the design in material which will also
resist electrical deposition and enter the meshes of the wire to meet and combine
with the said protecting surface, applying metallic surfaces between the outlines of
said design, and permanently depositing metal by electric action upon said metallic
surfaces to form the pattern.
5. The method herein before described of forming a pattern on the wire of the
mould, which consists in applying the design upon the wire in material which will
resist electrical deposition, and in depositing metal by electric action between the
outlines of said design to form the permanent pattern.
6. As a new article of manufacture a mould for use in the manufacture of
decorated paper, said mould having by electrical deposition a permanent hard
metal pattern or design formed in and filling the meshes of the same; substantially
as and for the purposes set forth.
UMAD GODE may be w
2334
SAMUEL CRUMP.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant,