IMPROVED MEANS OF TRANSFERRING PRINTED DESIGNS FROM PAPER OR OTHER SUITABLE MATERIAL TO SHEETS OF TIN, ZINC, BRASS, OR OTHER METAL
Year: 1882

page_text: LETTERS PATENT to Henry Mathieson of Mile End in the County of Middlesex
Lithographer for an invention of "IMPROVED MEANS OF TRANSFERRING
PRINTED DESIGNS FROM PAPER OR OTHER SUITABLE MATERIAL TO SHEETS OF
TIN, ZINC, BRASS, OR OTHER METAL'
"
"
PROVISIONAL SPECIFICATION left by the said Henry Mathieson at the
Office of the Commissioners of Patents on the 18th March 1882.
HENRY MATHIESON of Mile End in the County of Middlesex Lithographer
IMPROVED MEANS OF TRANSFERRING PRINTED DESIGNS FROM PAPER OR OTHER
SUITABLE MATERIAL TO SHEETS OF TIN, ZINC, BRASS, OR OTHER METAL,
My invention relates to improved means of transferring printed designs from
paper, or other suitable material to sheets of tin, zinc, or other metal. In carrying
my invention into practice I provide a sheet of ordinary printing or writing paper,
of any required size, and I dip it in or coat it on both sides with a solution of
sugar, water, gum, and glue. In compounding said solution, I use half a pound of
sugar, two ounces of glue and one pound of gum to every gallon of water, The
effect of said solution is to cause the paper to shrink, and to take varnish so evenly,
and smoothly that no blisters, air-bubbles, or other defects are possible. Each sheet
of paper having been immersed in or coated with said solution as is herein before
stated, is varnished with ordinary varnish on one side, and is then hung up to dry
for about six hours in the atmosphere of an ordinary roon, or loft. The paper so
treated does not expand when the printing thereon, is being transferred to the
metal plates. Heretofore the lithographic stone has had to be dried before an
impression could be taken from it. By my invention the impression may be taken
from a wet stone. The paper prepared, and varnished as is hereinbefore stated is
then applied to the lithographic stone, and is operated on by the printing roller,
and thereupon the designs or patterns are printed on said paper in the color or
colors which may have been used. When necessary I dry the colors almost

page_text: instantaneously by sprinkling or dusting the paper with French-chalk. The
patterns or designs having been printed on the sheets of paper as is hereinbefore
described I use a varnish tint with which I coat the paper, thereby dispensing with
the necessity for varnishing the metal plate or sheet, and saving much time and
labour as the operation of transferring to, and varnishing the metal plate or sheet
can be accomplished by steam power, whereas heretofore the varnishing of the
metal plate or sheet could be done by manual labour only. The paper prepared
and printed on as is hereinbefore described is then placed upon the sheet or plate
of metal which is deposited in an ordinary lithographic press provided with a metal
bed heated to about 200° Fahrenheit. The sheet of paper thereupon adheres
firmly to the metal sheet, or plate and is removed either by immersing the latter in
cold water, or by saturating the paper with cold water. By either means the paper
can readily be removed from the metal plate, or sheet, which retains the design
complete and varnished.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent & of
an Order of the Lord Chancellor filed by the said Henry Mathieson in the
Great Seal Patent Office on the 30th September 1882.
HENRY MATHIESON of Mile End in the County of Middlesex Lithographer
"IMPROVED MEANS OF TRANSFERRING PRINTED DESIGNS FROM PAPER OR OTHER
SUITABLE MATERIAL TO SHEETS OF TIN, ZINC, BRASS, OR OTHER METAL
"
My invention relates to improved means of transferring printed designs from
paper or other suitable material to sheets of tin, zinc brass or other metal. In
carrying the said invention into practice I provide a sheet of ordinary printing or
writing paper of any required size, and I dip it in, or coat it on both sides with a
solution of sugar, water, gum, and glue. In compounding said solution I use half
a pound of sugar, two ounces of glue, and one pound of gum to every gallon of
water. The effect of said solution is to cause the paper to shrink, and to take
varnish so smoothly and evenly that no blisters, air-bubbles, or other defects are
possible. Each sheet of paper having been immersed in or coated with said solution
as is hereinbefore stated is varnished with ordinary varnish on one side, and is then
hung up to dry for about six hours in the atmosphere of an ordinary room, or loft.
The paper so treated does not expand when the printing thereon is being transferred
to the metal plates. Heretofore the lithographic stone has had to be dried before an
impression could be taken from it. By my invention the impression may be taken
from a wet stone. The paper prepared and varnished as is hereinbefore stated is
then applied to the lithographic stone, and is operated on by the printing-roller
and the designs or patterns are printed on said paper in the color or colors which
may have been used. When necessary I dry the colors almost instantaneously by
sprinkling or dusting the paper with French-chalk. The patterns or designs
having been printed on the paper as is hereinbefore described I use a varnish
tint with which I coat the paper thereby dispensing with the necessity for
varnishing the metal sheet or plate, and saving much time and labour as the
operation of transferring to and varnishing the metal sheet or plate can be
accomplished by steam power, whereas heretofore the varnishing of the metal sheet
or plate could be done by manual labour only. The paper prepared and printed
on as is herein before described is then placed upon the sheet or plate of metal
which is deposited in an ordinary lithographic press provided with a metal bed
heated to about 200° Fahrenheit. The paper thereupon adheres firmly to the
metal sheet or plate, and is removed either by immersing the latter in cold water,
or by saturating the paper with cold water. By either means the paper can
readily be removed from the metal sheet which retains the design complete and
varnished.
Having now fully described the nature of my said Invention and the manner in
which the same is to be carried into effect I wish it to be understood that what I
consider as new and therefore secured to me by the berein before in part recited
Letters Patent is substantially as is set forth in the foregoing specification. In
Witness whereof I the said Henry Mathieson have hereunto set my hand and
seal this Thirteenth day of September in the year of our Lord One thousand
Eight Hundred and Eightytwo.
HENRY MATHIESON. (LANE)