An Improvement in or connected with Rolls used in Wet Colour and Liquid Cement and like Coating Machines.
Year: 1892

page_text: Date of Application, 24th May, 1892
Complete Specification Left, 7th Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
An Improvement in or connected with Rolls used in Wet Colour
and Liquid Cement and like Coating Machines.
We, FRANK WALTER HAYWARD, Watchmaker, of 23 Upper King Street,
ALFRED STEPHEN KING, Wood Buyer, Chesham House, Rosary Road, and
ALFRED WOCDBRIDGE LOVELAND, Lithographic Printer, Thorpe Road, all in
the City of Norwich, do hereby declare the nature of our said invention to be
as follows:-
one
matérials.
This invention relates to a novel make of roll or rolls for uniformly and
effectually colouring, varnishing, gumming, oiling, sizeing, and generally distributing
or simultaneously more colours or liquids on to paper or other surface
For the purpose of our invention we chase, chequer, or otherwise make the
surface of the roll uniformly rough, but preferably in shallow shaped rings more or
less close together.
The rolls are of metal or other hard or comparatively hard material and dip into
or supplied from a duct containing the substance for coating the material which is
passed in contact, or upon or against which the roll is passed.
11
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frank Walter Hayward, Alfred Stephen King,
and Alfred Woodbridge Loveland.
COMPLETE SPECIFICATION.
An Improvement in or connected with Rolls used in Wet Colour
and Liquid Cement and like Coating Machines.
.
We, FRANK WALTER HAYWARD, Watchmaker, of 23 Upper King Street,
ALFRED STEPHEN KING, Wood Buyer, Chesham House, Rosary Road, and
ALFRED WOODBRIDGE LOVELAND, Lithographic Printer, Thorpe Road, all in
the City of Norwich, 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 :-
=
This invention relates to a novel make of roll or rolls for uniformly and
effectually colouring, varnishing, gumming, oiling, sizeing, and generally
distributing one or more colours or liquids simultaneously on to paper, or other
surface materials.
For the purpose of our invention, we chase, chequer, or otherwise make the
surface of the roll uniformly rough or with shallow grooves more or less close
together. The rolls are of metal, or other hard, or comparatively hard material,
and dip into, or are supplied from a duct containing the substance for coating the
material which is passed in contact; or upon, or against which the roll is
passed.
As an example of our invention, we make the surface of a cylinder roll with very
narrow grooves circumferentially, either annular, or at an angle like a fine screw
thread, or interstices, which act as infinitesimal ducts, and are so shallow and
uniformly close together that the capillary attraction of the
paper takes up
practically all the liquid they contain when undergoing the nip of the rolls, and
causes the liquid to blend together in a coat of uniform thickness, and fit it in a
ED 017

page_text: frame with a plain roll above but in touch therewith under pressure of springs, or
by the weight of the roll itself, so that the paper to be coloured, gumined.
varnished, or otherwise plainly coated may be drawn between them. The lower
or striated roll dips slightly into the colour, gum, varnish, or other material in a
trough, and as the roll is turned by hand, or other power, the circumference licks
up the material, and conveys it to the paper as it is passing through between the
rolls, the paper by its absorbent character sucking the colour from the lower roll.
The roll, by reason of its grooves or interstices, lifts slightly more than the paper
requires, and a kind of bead or wave is created just in front of the nipping portion
of the roll's circumference, which bead or wave moistens the surface of the paper
just before the pressure actually occurs, and prepares the paper for the final
absorption of the colour during its passage between them." The grooves or
interstices in the lower roll in proportion to their depth retain colour, and as the
paper is leaving the nip of the rolls, it sucks the remainder of the colour from the
grooves, and becomes equally and uniformly coated, and presents a truly plain
coloured surface.
The paper thus treated and dried by exposure, or other method is applicable
for printers, for fancy box makers, for bookbinders liners, for jewel case makers,
for labels, and other uses, and when the coloured paper has to present a glazed
surface, the paper can be passed between hot rolls, as now adopted for dipped or
floated papers, or glazed by revolving brushes, friction rolls, or Hint glazing.
By this invention, paper can be coated to an uniform tint, or tone of colour all
over its surface with perfect regularity, and with great economy, and speed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The construction and employment of rollers having finely roughened or
intersticed surfaces for removing colour or other liquids from a duct, carrying and
supplying it to paper or other surface material in transit for the even distribution
of the colouring, or other matter thereto, as described.
2. In a paper colouring or liquid coating machine, the employment of a
roughened surface roll for conveying liquid to paper, or surface material in transit,
the paper being kept in a flat and level condition, and the surplus colouring, or
other liquid matter forced back by the pressure of an additional roll, which in com-
bination with the colouring roll, draws the paper through, and the colour becomes
evenly distributed on one side thereof.
The 7th day of November 1800
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frank Walter Hayward, Alfred Stephen King,
and Alfred Woodbridge Loveland.