IMPROVEMENTS IN SIZING PAPER
Year: 1850

page_text: MATTHEWS, of Kidderminster, Foreman, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Second November,
One thousand eight hundred and fifty, in the fourteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John Matthews, my exors, adñors, and assigns, Her especial license, full
power, sole privilege and authority, that I, the said John Matthews, my
exors, admors, and assigns, or such others as I, the said John Matthews,
my exors, adiñors, 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 "IMPROVEMENTS
IN SIZING PAPER;" in which said Letters Patent is contained a proviso that
I, the said John Matthews, shall cause a particular description of the nature
of my said Invention, and in what manner the same is to be performed,
by an instrument in writing under my hand and seal, to be inrolled in Her
said Majesty's High Court of Chancery within six calendar months next and
immediately after the date 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.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said John
Matthews, 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 Drawings hereunto aunexed, and to the figures and letters marked
thereon, that is to say :-
My Invention consists of improvements in the means and apparatus
employed for carrying paper through size contained in a suitable vessel.
And in order that my Invention may be most fully understood and readily
carried into. effect, I will proceed to describe the means pursued by me.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a side elevation, Figure 2 is a plan, and Figure 3 a
longitudinal section of a machine for sizing paper when in sheets. These
Figures show the form of trough or vessel B which I prefer to contain the
size, but the same may be varied. The sheets of paper are fed in between and
are carried by two felts or suitable fabrics a, b; the fabric or felt b is carried
by the rollers 2, 3, 10, 11, 12, and the felt or fabric a is carried by the
rollers 1, 4, 5, 6, 7, 8, 9, and there are two small rollers which support the
felts a, b, with the sheets of paper between them as they pass together
between the rollers 2 and 3. The rollers 4 and 12 are press rollers by
means of which the excess of size is pressed out of the paper; motion
is communicated from a steam engine or other power, by a strap, to the
pulley on the axis of the roller 4, and the necks or ends of the axis of
the roller 12 are pressed on by weighted levers C, as shown. Sheets of paper
to be sized are placed on the table A, and the person attending the machine
causes the edges of the sheets to enter between the rollers 10, 14, by which,
and then as the sheets of paper descend into the size, they will be taken by
the two felts a, b, and conducted through the size, and the excess of size will
be expressed by the pressing rollers 4, 12. I would state that there are
projecting edges formed or fixed on the edges of the felts, which are guided
by pulleys which keep the felts distended as they pass between the pressing
rollers, which, however, are not shown in the Drawing; but they being
similar to those used in paper-making machines, the workman will readily
apply the same. Figure 4 shows a longitudinal section, and Figure 5 a
transverse section of machine constructed according to my Invention for
sizing long sheets or webs of paper. In this arrangement the webs of paper.
are conducted through the size in a suitable trough or vessel, by means of
endless felts or fabrics a, b, which are guided and kept distended by guide

page_text: pulleys as they come up to and pass the pressing rollers, as mentioned in
respect to the previous machine. The present machine does not materially
differ from the preceding onc, the principal change being in respect to the
number of rollers employed in carrying the endless felts or fabrics a and b;
but in this machine as in the previous one the web of paper is received between
two felts soon after it lias descended into the size, and it is taken by such felts
up to and is pressed between the pressing rollers and delivered sized, as before
described. The felt or fabric a is carried and guided by the rollers 1, 2, 4, 5,
6, 7, and the felt 6 is carried and guided by the rollers 2, 10, 11, 12. The
rollers 4 and 12 being the pressing rollers, the roller 12 presses on the roller
4 by means of weighted levers resting on the ends of the axis of the roller 12,
as shown. The web of paper is conducted over the roller 14, and is held
between the two felts a and b when it comes to the roller 2, all which will
readily be traced on examining the Drawing. The trough B, which is shewn,
is of the form I prefer, but the shape may be varied.
Figures 6 and 7 show two sections of another machine for sizing webs of
paper. It consists of a trough B for containing the size; this trough is open
below, and has two pressing rollers 4, 12, which are pressed together by
weighted levers, as shown; and at the bottom of the trough B there is fixed
a flexible flap c, c, which I prefer to be of vulcanized india rubber, which
prevents the size flowing in any other direction than between the two rollers
4, 12. The paper descends through the size and is received between two
endless felts or fabrics a, b, as shown, and any size which may escape falls into
the trough or vessel C. The endless felt or fabric b is carried by the rollers
10 and 12, and the endless felt or fabric a is carried and guided by the rollers
1, 4, 5, 6, and the felts are to be kept distended as they come up to and pass
the pressing rollers." -
I would remark that paper, whether in sheets or in webs, may, when desired,
be sized before the same has been dried, the use of carrying felts or fabrics
enabling the paper, maker to do so notwithstanding the weak state of the
paper, or the paper may, as heretofore, be more or less dried before sizing the
same.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that what I claim is,―
First, the combinations of machinery, as described in respect to Figures 1, 2,.
3, and also Figures 4 and 5 of the Drawings, whereby endless felts or fabrics
are caused to conduct sheets and webs of paper through size contained in a
suitable trough or vessel; and,