A MACHINE OR MACHINES FOR PRINTING CALICOES AND OTHER ARTICLES
Year: 1808

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
MAUDSLAY, of Margaret Street, Cavendish Square, in the County of Middlesex,
Mechanist, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Fourteenth day of
March, in the forty-eighth year of His reign, give and grant unto me, the
said Henry Maudslay, my exors, admors, and assigns, His special licence,
full power, sole privilege and authority, that I, the said Henry Maudslay, my
exors, adiñors, and assigns, should and lawfully might, during the term of years
therein expressed, make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "A MACHINE OR MACHINES
FOR PRINTING CALICOES AND OTHER ARTICLES;" in which said Letters Patent
there is contained a proviso obliging me, the said Henry Maudslay, by an
instrument in writing under my hand and seal, to cause a particular descrip-
tion of the nature of my said Invention, and in what manner the samo
is to be performed, to be inrolled in His Majesty's High Court of Chancery
within four calendar months after the date of the said recited Letters Patent,
as in and by the same, relation being thereunto had, may and will more fully
and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Henry Maudslay, do hereby declare that my said Invention is particularly
described and ascertained in and by the Drawings hereunto annexed, and
the following description thereof, that is to say:-

page_text: My Invention is a method of doctoring or wiping off the superfluous color
from engraved rollers or cylinders for printing callico or any other substance
printed from such engraved rollers or cylinders, whereby great expedition is
obtained, and the difficulties which arise in the present mode are obviated, the
ground better observed, and the figure more clearly delineated.
My manner of performing the same is by causing a plain roller or cylinder
to be placed immediately above and in contact with the engraved roller, both
of which must be perfectly true, so that the line of contact between the two
shall be colour-tight, or that the colour being put on that part of the engraved
roller about to pass the line of contact shall be carried up into the acute angle
formed by the peripherys of the two rollers, and there pressed into the engraved
line on the lower roller, which will pass the line of contact well filled with
colour, while the body of colour is continually driven back by the upper or
plain roller. This constitutes the principal upon which my Invention is
founded.
My method of applying it to practice is fully described by a Drawing
(accompanying this Specification) of a press upon my new construction,
calculated to print one, two, or three colours at the same time.
Fig. 1 is a lateral elevation, Fig. 2 a front elevation, and 'Fig. 3 a plan. In
cach Figure A is a large roller, which carries round the endless blanket B,
kept tight in its passage by the havey roller C, and moves in the direction
of the small arrows. Dis the cloth to be printed, brought from a reel or roller
between the rollers of wood E, E, under F, over G, and under H. 'These are to
take out the wrinkles from the cloth before it arrives on the blanket at I; it
then passes with the blanket between the engraved roller K and the large roller
A, from thence it goes between the rollers L, A, & M, A. These three rollers
K,.L, & M, have cach the same apparatus belonging to them, and are the same
in every respect except the pattern engraved and the colour they print, therefore
it will be necessary only to describe one. L, in Figure 2, is the center ruller of
the 3; N is the plain roller, having its line of contact with L perfect, as before
described. This roller is found to answer better when smaller than L, therefore
O is a plain roller, very strong, to give the pressure to N on L, and to L on A.
The pressure is adjusted by the screws P, P, at the ends of O. When the
rollers K, L, & M, are put in motion by their respective wheels Q on the out-
side of the frame R, all communicating with a pinion and handle S, S, they
turn the rollers N & O by pinions T, T, T, at one end. Now if a quantity of
3 different colours be put into the colour boxes U, U, U, it will descend
into the acute angle, as shewn, between M & O, in Fig. 1, and no more
will pass the line of contact than what will fill the engraved line on the

page_text: lower roller M, the rest being retained as before described. The diameters
of these 8 rollers should be equal; but when an engraving is worn out, and
the roller turned down for a new engraving, and the diameter thereby
lessened, the relative velocity of that roller (when used with others not so
turned down) must be increased in the inverse rate of its diameter, that
the surfaces of all may move at the same rate. This is done by putting a
smaller wheel on the outside of the frame, and a smaller pinion to drive the
upper rollers, which in all cases will remain the saine.
It is almost unnecessary to
two colours, one set of rollers
add, that when this press is used to print with
are taken out, and when only one colour is
required two sets; one set of rollers will be sufficient.
In witness whereof, I, the said Henry Maudslay, have hereunto set
my hand and seal, this Thirteenth day of July, in the year of our
Lord One thousand eight hundred and eight.