IMPROVEMENTS IN THE MANUFACTURE OF CARD BOARD, MORE ESPECIALLY FOR JACQUARD CARDS, OR FOR PASTING TOGETHER TWO OR MORE WEBS OF D Т пид
Year: 1880

page_text: LETTERS PATENT to Robert Shackleton, of the Firm of James Shackleton
& Sons, of Bradford, in the County of York, Paper Makers, for an Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF CARD BOARD, MORE ESPECIALLY
FOR JACQUARD CARDS, OR FOR PASTING TOGETHER TWO OR MORE WEBS OF
D
Т пидт
PROVISIONAL SPECIFICATION left by the said Robert Shackleton at the
Office of the Commissioners of Patents on the 27th May 1880.
"
ROBERT SHACKLETON, of the Firm of James Shackleton & Sons, of Bradford,
in the County of York, Paper Makers. IMPROVEMENTS IN THE MANUFACTURE
OF CARD BOARD, MORE ESPECIALLY FOR JACQUARD CARDS, OR FOR PASTING
TOGETHER Two OR MORE WEBS OF PAPER OF ANY THICKNESS OR ANY LENGTH."
The object of this Invention is to paste together webs of paper, varying from
two upwards, of any length, to dry, press, callender, slit, and cut the same with
revolving knives in one machine, thereby effecting a great saving in labour.
On to a suitable framework we arrange two or more webs of paper of any
length. The centres of such webs are carried on brackets bolted to the frame, and
capable of regulation so as to take up slack side of paper; also with adjusting
screws to give motion to the rollers laterally, in order to keep webs of paper
linable. The paper from the webs which pass over a paste roll revolving in paste
tanks supplied from three or more cisterns at will suitably arranged overhead with
agitators worked by gearing. These rollers are subjected to pressure by upper
rollers. Both upper and lower rollers are driven by belting and gearing the same
surface speed as the paper, passing upwards under a guide roll, which guide roll
is fixed on brackets and capable of regulation. The various webs pass together
over guide roll and between two rollers, subjecting the combined pasted webs to
gentle pressure, and thence to the drying cylinders carried upon the same frame-
work bolted together but of different construction. Upon the upper drying

page_text: cylinders we have a pressure roller. The pasted webs pass between the lower hot
cylinder and an endless felt. We use in some cases the endless felt to top cylinders.
After passing round all the cylinders the card board is passed between two ordinary
steam heated callenders, which have compound levers for subjecting the board to
pressure as required.
The card board is then passed between two shafts, having ordinary circular
knives to slit the same to the required width or length. The slit card board is
kept in proper position by two carrying rollers for the dead and revolving knives
to cut the sheet in the opposite direction of any length or width. The revolving
knives are worked by expansion pulley, and sizes of sheets are got by the said
expansion pulley along with ordinary pulleys and gearing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Shackleton in the Great Seal Patent Office on the 26th
November 1880.
ROBERT SHACKLETON, of the Firm of James Shackleton and Sons, of Bradford,
in the County of York, Paper Makers. IMPROVEMENTS IN THE MANUFACTURE
OF CARD BOARD, MORE ESPECIALLY FOR JACQUARD CARDS, OR FOR PASTING
TOGETHER TWO OR MORE WEBS OF PAPER OF ANY THICKNESS OR ANY LENGTH."
The object of this Invention is to paste together two or more webs or sheets of
paper of any length, so as to form cardboard, and to press, dry, calender, longi-
tudinally slit and cut the samne in a transverse direction with revolving knives to
the required size of card by means of one combined machine, thereby effecting a
great saving in labour and time in the manufacture of such cards.
I will now describe the particulars of my Invention aided by the annexed
Drawings, in which Figure 1 represents an elevation of such portions of the
apparatus as are required to make clear my Invention; Figure 2 is a plan of the
same; Figures 3, 4, and 5 are details of the brackets that support the webs of
paper, and my arrangement for adjusting the paper rolls or webs in a longitudinal
and lateral direction; Figure 6 is an end elevation of bracket and pasting rollers;
Figure 7 is an elevation of one pair of disc knives for slitting the web of card
board in a longitudinal direction; and Figure 8 is an end view of the same.
Similar letters indicate similar parts in all the Figures.
The webs or rolls of paper to be pasted are indicated by the letters A, and are
mounted on shafts supported by brackets attached to the main framework. Each
sheet of paper from the web is conducted over its respective guide roll B to between
the pasting rollers C and C¹. These rollers will be more fully described hereafter.
After the webs of pasted paper leave the rollers C and C¹ they converge together,
and are conducted over guide rollers D to between the pressure rollers E and E¹,
thus subjecting the combined pasted webs to pressure and converting the same
into one sheet.
The combined webs or sheets of paper thus compressed together are dried by
being brought into contact with and travelling round the circumferences of a
number of ordinary heated drying cylinders F in the direction of curved arrows
to the slitting and transverse cutting portion of the apparatus.
In order to keep the combined pasted webs of paper in contact with the
circumferences of the heated drying cylinders F, I employ an endless web of porous
felt G, which is tightly drawn over rollers H, and driven by frictional contact with
the said cylinders, as are also the webs of paper A. Any steam arising from the
pasted sheets whilst drying evaporates through the porous felt. The consolidated
sheets or card board pass from the drying cylinders F to between a pair of steam
heated calender rollers J under pressure, and thereby finished ready for cutting;
pressure to these rollers is applied by means of compound levers K and weight K¹.
The web of card board is slit into longitudinal strips by passing between
revolving disc knives L, which are capable of being regulated to suit the width of
card required. The slit card boards after leaving the disc knives pass between
pressure rollers N and over a long stationary knife O, whereby the transverse cuts
are effected by revolving shear knife P, secured to the circumference of discs R;
the cutting edge of this knife P passes close to the cutting edge of the stationary
knife, thus shearing or cutting the webs, the cards falling on to an endless carrying
belt S, which delivers them into any vessel placed to receive them. These discs
and shear knife P can be so regulated in speed that cards of any length may be
cut, the length of card varying in proportion to the time required to complete one
revolution of shear knife P, which is adjusted to the proper rate of speed by means

page_text: of change pullies Y and change wheels Y', in conjunction with ordinary expansion
pulley X on intermediate shaft X'; thus cards may be cut varying in size from a
railway ticket upwards.
The paste is boiled and agitated by revolving arms T in cistern T¹, from which
it is emptied into supply cistern U, which is also fitted with revolving agitating
arms U. From the underside of this cistern are a number of pipes U2, each of
which is fitted with a tap for regulating the supply of paste to troughs V. The
bottom pasting rollers C revolve in the paste contained in the troughs V. These
rollers are covered with a tight-fitting felt, which raises paste from the troughs
and mechanically pastes one side of the webs of paper. The circumferences of the
top rollers Care also covered with a tight felt, which in conjunction with the
bottom felt forms a cushion, and in addition the circumferences of the rollers at the
point of contact are somewhat flat, which gives more time for the paste to adhere.
The quantity of paste required on the paper is regulated by the pressure placed
upon the journals of the rollers C and C₁.
What I claim as my Invention is,-
The combination of parts for the pasting together of webs of paper, of drying,
pressing, calendering, slitting, and cutting the cardboard in one machine without
the intervention of manual labour.
In witness whereof, I, the said Robert Shackleton, have hereunto set my hand
and seal, this Eighteenth day of October, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
JOHN WAUGH,
Consulting Engineer,
Bradford,
Yorks.
ROBERT SHACKLETON. (L.S.)