IMPROVE MENTS IN PRINTING OR STAINING OP PAPER
Year: 1846

page_text: די
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HAROLD
POTTER, of Darwin, in the County of Lancaster, Paper Manufacturer and
Stainer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the First day of April, in the ninth year of the reign, did,
for Herself, Her heirs and successors, give and grant unto me, the, said
Harold Potter, my exors, admors, and assigns, Her especial license, full
power, sole privilege and authority, that I, the said Harold Potter, my
exors, admors, and assigns, or such others as I, the said Harold Potter, my
exors, admors, or assigns, should at any time agree with, and no others, from
time to time and at all times during the term of years therein expressed,
should and lawfully might make, use, exercise, and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of "IMPROVE
MENTS IN PRINTING OR STAINING OP PAPER;" in which said Letters Patent is
contained a proviso that I, the said Harold Potter, shall cause a particular
description of the nature of my Invention, and in what manner the same
is to be performed, to be inrolled in Her said Majesty's High Court of
Chancery within six calendar months next and immediately after the date
"

page_text: of the said in part recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Harold Potter, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, reference being
had to the Drawing hereunto annexed, and to the figures and letters marked
thereon, that to say :-
-
My Invention consists of-a mode of supplying color to surface rollers used
for printing or staining paper in place of the means heretofore resorted to; and
in order that the Invention may be most fully understood and readily carried
into effect I will proceed to describe the means pursued by me. The construc-
tion of printing machinery used for printing or staining paper, wherein surface
rollers are used, being well understood, it will not be necessary to describe the
same here, nor will it be necessary to show a complete machine in the Drawing.
All that will be required to make a workman acquainted with such machinery
to understand the Invention, will be to show the application of my mode of
applying color to a surface roller of a printing machine.
DESCRIPTION OF THE DRAWING..
The Drawing shows a section of a surface roller of a printing machine,
the color being applied thereto by an endless blanket or sieve cloth, and is
applicable in those cases where several colors are to be printed from the same
roller, and also in cases where the color is to be printed in stripes of the same
color. a is the section of a surface roller suitable for printing or staining
paper hangings, as is well understood. 6 is an endless blanket or sieve cloth,
which is caused to move at the same surface speed as the roller a, the endless
blanket being supported by rollers c, c, as is shown. The sieve cloth travels
in the direction of the arrow, and various colors are put on to the endless
sieve cloth by a hand block d; this block has several rows of studs or projec-
tions e, which enter into the color trough f, which in the case shown is
divided into seven compartments into which seven different colors may be
placed. The workman dips the studs or projections e into the color, and then
places it on to the moving sieve surface, and the color so placed on will be
spread by the bar g covered with wollen cloth, which is kept pressed slightly
against the endless sieve surface, and any excess of color will be scraped off by
the doctor b. I would remark, that I am aware that endless sieve surfaces
have been used when supplying color to rollers when printing calico and other
woven fabrics; I do not, therefore, claim the same, nor do I confine myself