An Improved Paper Ripping and Winding Machine.
Year: 1891

page_text: Date of Application, 6th Mar., 1891
Complete Specification Left. 7th Dec. 1891-Accepted, 13th Feb., 1892
PROVISIONAL SPECIFICATION.
An Improved Paper Ripping and Winding Machine.
I, DAVID NOBLE BERTRAM of St. Katherines Works, Sciennes, Edinburgh,
in the County of Midlothian, North Britain, Engineer do hereby declare the
nature of this invention to be as follows:-
This machine, which relates to an improved paper ripping and winding machine,
is constructed of rigid frames supporting the roll of paper to be slit, the winding
drum, pressing roll, slitting knives, and lifting gear.
The brackets for supporting the roll of paper to be slit are made with slides for
adjusting the roll vertically and longitudinally and are fitted with a device by
which the roll only requires to be slid (not lifted) into position.
The slit webs are wound on spools in the usual manner above a cast iron drum
of about 24" in diameter.
The arrangements for the removal of the slit or trimmed webs are in accordance
with my invention simple and efficient.
On the top of the finished web runs a cast iron roll which serves the double
purpose of driving the slitting knives and pressing the paper on the rolls making
them very firm and compact.
The slitting and trimming knives are placed alongside and driven by the pressing
roll.
The paper is slit and trimmed while passing over the pressing roll and is imme-
diately wound on the finished roll.
This ensures the webs being evenly wound as the paper has only a few inches to
travel after being slit until it is on the roll while the pressure on the top by pressing
roll ensures very hard and compact rolls.
Efficient lifting gearing is applied for lifting the pressing roll and sliding knives
for the removal of the finished webs, the arrangement consists of a cross shaft and
spur gear with two suspending straps fitted to fixed pulley keyed on cross shaft,
and for sustaining this in position there is a ratchet at front side."
It will be observed that the advantages of this machine over others are, that the
paper is slit and trimmed while it is highly stretched over pressing roll, and that
directly it is slit, it is wound on the roll, and having so short a distance to travel
after being slit there is no time for the paper to get out of position as on other
machines.
Dated this 5th day of March 1891
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioner's Agents.
COMPLETE SPECIFICATION.
An Improved Paper Ripping and Winding Machine.
I, DAVID NOBLE BERTRAM of St. Katherine's Works, Sciennes Edinburgh,
in the County of Midlothian, North Britain, Engineer, do hereby declare the
nature of this invention and in what marner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention which relates to an improved paper ripping and winding machine
has for its object to construct a machine which will trim, rip and wind paper in a
much more efficient manner than hitherto.
As illustrated in front elevation Figure and side elevation Figure 2 of the
accompanying drawings I provide two rigid cast iron cheeks or frames A which are

page_text: provided with the necessary means for carrying and supporting the roll of paper
to be trimmed and slit, the winding drum, pressing roll, trimming and slitting
knives, lifting gear and their connections.
The reel of paper B to be trimmed and slit is carried in suitable brackets or
bearings which are capable of being adjusted horizontally and vertically and
they are also provided with suitable friction arrangements and devices whereby the
reel is only slid into position and not lifted. The paper after leaving the reel B
passes up over the leading roll C, which may be capable of being adjusted hori-
zontally and provided with friction arrangements, thence up and over the leading
roll D which leads the paper between the trimming knives E which are of the
usual type and capable of being adjusted on their spindle e to any required width.
After the trimmed paper passes the knives E it is fed on to the winding reel or
spools F by means of the roller G which rests on top of the reel F, and which may
be made of any suitable material and if desired covered with indiarubber. The
winding reel F is composed of a suitable spindle f, having any suitable number of
spools or bobbins mounted thereon and carried in bearings which slide up the
frames A as the reel of paper increases in diameter. Immediately above the
reel FI mount a pair of sliding brackets 2 which are raised by the increase in
diameter of the reel F and assisted by means of the balance weights H and H'
which are connected to the said brackets by ropes or chains which passes over
and around grooved pulleys h¹ mounted on the ends of a horizontal shaft which has
also other two or more grooved pulleys ³ mounted on it over which suitable chains
or belts pass, the ends of which are connected to a cross bar or stay h' which is
connected at each end to the brackets or carriages f2 one of the said chains or
belts may be provided with an adjusting arrangement 4° so as to equalize the
pressure of the roller G on the winding reel F, the said roller G and trimming
knives being also carried in suitable bearings formed in the sliding brackets or
carriages which if desired may be so constructed as to slide in a horizontal
or angled direction as well as vertical, and they are also provided with suitable
raising and lowering mechanism K as shown.
After the trimmed paper has been wound nearly a full turn on the reel F through
the medium of the driving drum L it passes under the slitting or ripping knives M
which are adjustably mounted on a horizontal spindle m carried in suitable bearings
provided in the one ends of two bell crank levers N which are fixed to the
carriages in such a manner that they are free to swing and so permit of the
knives M being raised or lowered from or into contact with the reel of paper F;
the said raising and lowering of the said knives M being effected by means of the
back ends n of the levers N, bearing against two pivoted rods P which are mounted
to the main frames A, and so shaped that they cause the knives M always to have
a constant depth in the reel of paper F as its diameter increases. The lower ends
of said rods P bear against suitable cams Q which are mounted on a spindle q
which has one or more handles q' mounted on it so that on the cams Q being actuated
the knives M are raised from or lowered into the reel F.
The trimming knives E are driven by means of spur gearing from the pressing
roller G though if desired they may be driven by means of belts from the main
drum L. The slitting or ripping knives may also if desired be driven by suitable
gearing, in lieu of by the reel F as shown.
The object of mounting the weights H' on the ends of pivoted levers h³, and
connecting them to the other weights H as shown, is to gradually decrease the
pressure of the roller G, on the reel F, as it increases in diameter and so ensures
well wound rolls.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In paper ripping and winding machines the arrangement of the trimming

page_text: possible to travel between trimming and winding substantially as described and
shown in the drawings.
2. In paper ripping and winding machines the arrangement whereby the trimming
knives are driven direct from the pressing roller G substantially as described and
shown in the drawings.
3. In paper ripping and winding machines mounting the roller G, trimming
knives E slitting knives M, and leading roller D in brackets or carriages which
are capable of moving on the frames A of the machine whereby the position of
the said carriages is regulated by the diameter of the wound reel though it may
also be regulated by the gearing K substantially as described and shown in the
drawings.
4. The general arrangement and construction of paper ripping and winding
machine substantially as herein before described and shewn in the accompanying
drawings.
Dated this 5th day of December 1801
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.