IMPROVEMENTS IN PRINTING, LITHOGRAPHING, OR ZINCOGRAPHING ON TEXTILE FABRICS.
Year: 1873

page_text: LETTERS PATENT to Walter MacLean, of Glasgow, in the County
of Lanark, North Britain, for the Invention of "IMPROVEMENTS IN
PRINTING, LITHOGRAPHING, OR ZINCOGRAPHING ON TEXTILE FABRICS.
Sealed the 4th November 1873, and dated the 6th September 1873.
PROVISIONAL SPECIFICATION left by the said Walter MacLean
at the Office of the Commissioners of Patents, with his Petition,
on the 6th September 1873.
I, WALTER MACLEAN, of Glasgow, in the County of Lanark,
North Britain, do hereby declare the nature of the said Invention of
"IMPROVEMENTS IN PRINTING, LITHOGRAPHING, OR ZINCOGRAPHING ON TEXTILE
FABRICS," to be as follows, that is to say :—
This Invention relates to printing, lithographing, or zincographing on
textile fabrics in two or more differently coloured inks at one operation,
instead of by the usual method employing a separate printing opera-
tion for each colour used in the design to be printed, lithographed, or
zincographed.

page_text: In the remainder of this Provisional Specification the word "printing"
is for the sake of brevity used as inclusive of the three operations of
"printing," "lithographing," and "zincographing."
In producing designs according to this Invention in one operation in
two or more differently coloured inks without blending of the colours, &
the two or more inks are placed either in the ink box of the printing
machine and there separated from each other by wedges, or the
differently coloured inks are placed on separate parts of the ink feeding
roller from which they are transferred to the ink table and inking rollers,
and from the inking rollers to the printing surface.
1
Again the ink table of the printing machine may be divided into two
or more movable plates, with a blank space between them in order to
prevent the differently coloured inks from mixing one with the other.
This result may also be obtained by cutting blank spaces in tho soveral
inking rollers, and by using a different colour of ink in cach part 1
separated by the blank spaces.
In printing designs wherein the colours used in it are blended, this
may be effected by placing the two or more different coloured inks in
the ink box of the machine, or on the feed roller from whence they are
transferred to the ink table, and there blended together by the action of 2
the ink distributing rollers. And after being so blended the ink
is transferred to the inking rollers, and from them to the printing
surface.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Walter MacLean in the Great Seal Patent 25
Office on the 5th March 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WALTER
MACLEAN, of Glasgow, in the County of Lanark, North Britain,
send greeting.
WHEREAS I[er most Excellent Majesty Queen Victoria, by Her 30
Letters Patent, bearing date the Sixth day of September, in tho
year of our Lord One thousand cight hundred and seventy-three, in
the 37th year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Walter MacLean, Her special license

page_text: that I, the said Walter MacLean, my executors, administrators, and
assigns, or such others as I, the said Walter MacLean, my executors,
administrators, or assigns, should at any time agree with, and no
others, from time to time, and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Ohannel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
PRINTING, LITHOGRAPHING, OR ZINCOGRAPHING ON TEXTILE FABRICS," upon
the condition (amongst others) that I, the said Walter MacLean, by
an instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Lotters Patent.
NOW KNOW YE, that I, the said Walter MacLean, do hereby
declare the nature of my said Invention, and in what manner the
same is to bo performed, to be particularly described and ascertained
in and by the following statement, that is to say :-
My said Invention relates to the printing of designs on textile fabrics
in two or more different colours at one operation. The printing
operation is carried out in the usual manner at a lithographing,
zincographing, or printing machine, excepting that instead of the ink in
the ink box being of one colour only, as hitherto, it consists of sevaral
different colours, such for example as red, blue, and yellow. The
different coloured inks in the ink box are separated from each other by
"wedges" placed in the ink box. These two or more different coloured
inks are at one and the same time transferred to the printing surface by
means of the ink feeding roller receiving the inks from the ink box in
the usual manner,
in order to transfer them to the ink table from which
the printing rollers receive the inks to supply the printing surface.
It is to be understood that as the different coloured inks are kept
separate from each other in the ink box, so they appear correspondingly
separate on each impression of the fabric taken from them excepting
when the colours are to be blended together in order to produce a
"rainbow” or graduated effect of colour, this being obtained by working
the ink rollers on the ink table with an endwise motion (that is to say,
longitudinally) instead of by a parallel ono as under the fist head.

page_text: Having now described and particularly ascertained the nature of my
said Invention, and the system, mode, or manner in or under which tho
samo is or may be used or practically carried into effect, I would obscrve
in conclusion that what I consider to be novel and original and therefor
claim as the Invention secured to me by the herein-before in part recited {
Letters Patent is, the printing by one operation on textile fabrics two or
moro different coloured inks on separato parts of the fabric, or by
blending the two or more coloured inks together in order to produce a
graduated effect as herein-before described.
In witness whereof, I, the said Walter MacLean, have here- 1
unto set my hand and scal, this Fourth day of March Ono
thousand eight hundred and seventy-four.