Improvements in Spreading Machines used in Coating Fabrics with India Rubber and other Compounds.
Year: 1890

page_text: Date of Application, 21st Apr., 1890
Complete Specification Left, 20th Jan., 1891-Accepted, 28th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Spreading Machines used in Coating Fabrics with
India Rubber and other Compounds.
I, ALBERT MICHAEL HART, of Carlton Villas, Kersal, Manchester, in the
County of Lancaster, India Rubber Manufacturer, do hereby declare the nature of
the said invention to be as follows:-
The object of my invention is to make a machine to "spread" (as it is termed)
india rubber dough and other plastic compounds upon two fabrics passing side by
side, and if desired of different thicknesses, and with different thicknesses of dough
mixtures if desired, and so arranged that one fabric may be operated upon when
required, while the operation upon the other is stopped.
The advantages of my improved combination of spreading mechanism being that
it can be constructed at less cost and will occupy less space than two separate
machines, while the machine is so compact that one operator will be able to
attend to one of my improved double machines spreading two fabrics at the same
time.
My invention consists in the combination and arrangement of mechanism,
namely:-
There are two side frames and a middle frame, which carry the bearings of the
rollers and other mechanism, similar to that used in ordinary spreading machines..
The rollers are separate and arranged to be driven separately and there are separate
"doctors" for each fabric with separate adjustments and there is one set of steam
drying chambers, common to both halves of the machine.
The gearing for driving both halves of the machine are separate one set of
gearing being on one side, and the other set of gearing on the other side of the
machine.
Thus arranged a single fabric may be operated upon, or two fabrics at the same
time, and either fabric may be stopped and started without affecting the other fabric
being treated.
Dated this Nineteenth day of April 1890
PETER J. LIVSEY,
Agent.
COMPLETE SPECIFICATION.
Improvements in Spreading Machines used in Coating Fabrics with
India Rubber and other Compounds.
1, ALBERT MICHAEL HART, of Carlton Villas, Kersal, Manchester, in the
County of Lancaster, India Rubber Manufacturer, do hereby declare the nature of
this invention, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The object of my invention is to make a machine to "spread" (as it is termed)
india rubber dough and other plastic compounds, upon two fabrics passing side by
side, and if desired of different thicknesses, and with different thicknesses of dough
mixtures or different qualities of dough mixtures if desired, and so arranged that
one fabric may be operated upon when required, while the operation upon the other
is stopped.
The advantage of my improved combination of spreading mechanism being, that
it can be constructed at less cost and will occupy less space than two separate
machines, while the machine is so compact that one operator will be able to

page_text: attend to one of my improved double machines spreading two fabrics, at the same
time.
My invention consists in the combination and arrangement of mechanism,
namely:
:-
There are two side frames and a middle frame which carry the bearings of the
rollers and other mechanism similar to that used in ordinary spreading machines.
The rollers are separate, and arranged to be driven separately, and there are
separate doctors" for each fabric with separate adjustments, and there is one set
of steam drying chambers, common to both halves of the machine.
The gearing for driving both halves of the machine are separate, one set of
gearing being on one side, and the other set of gearing on the other side of the
machine.
Thus arranged a single fabric may be operated upon, or two fabrics at the same
time, and either fabric may be stopped and started without affecting the other fabric
being treated.
Fig. 1 is a side elevation of a spreading machine according to my invention, and
Fig. 2 is a plan view thereof.
A break is shown in each figure, the machine being made of any desired length
from front to back.
The mechanism of each half of the machine is somewhat similar to ordinary
single spreading machines.
There a base frame a, at the front and one a', at the back of the machine upon
which two side frames b, are secured at the front, and two b', at the back, and there
is one middle frame 62, secured to the base frame a, at the front and one ³, secured
to the base frame a', at the back.
as
There are steam boxes or chambers c, for drying the dough spread on the fabrice,
it passes along and these chambers rest upon supporting beams c', between the
side frames, and 6, and extend from one side frame b, to the other , and from
near the roller or cylinder d, in front, and that roller e, at the back, which chambers
are arranged and supplied with steam in the ordinary manner.
As the operating mechanism for both halves of the machine is the same except
that one is right handed and the other left handed it will only be necessary to
describe the mechanism for one half of the machine.
The cloth or fabric, which is to have the dough mixture spread upon it, is
wound upon a roller or shaft f, which is in bearings in arms projecting from one side
frame, and the middle frame b².
The shaft, has a pulley ', upon it, for a belt or band 2, one end of which is
secured to the base frame a, and the other passes over the pulley f', and is then
tightened to the extent desired, and this gives the required retarding friction to
stretch the fabric being treated.
The fabric passes from the roller or shaft over the upper surface of the roller
or cylinder d, which also has its bearings in one side of the middle frame, and
receives its coat of dough in passing over this roller d, as hereinafter stated.
Then the fabric moves forward over or near to the upper surface of the steam
heated drying box or chambers c, until it comes to the back roller e, round which it
passes and then it passes back over supporting rollers g, having their bearings in
brackets secured to the beam e', for the drying chambers, and on to a roller or shaft h,
having its bearings in brackets from the side and middle frames.
On the outside end of the shaft h, there is a pulley ', for a crossed belt h³, which
also works upon a pulley ', upon the outside end of the shaft of the roller.d, which
pulley d, will drive the shaft h, faster than required to wind up the cloth at the
speed desired, but the crossed belt, is slack enough to slip and to only give friction
enough to wind up the cloth at the speed at which it passes over the roller d.
When a length of fabric has been treated it is or may be wound back by a handle
placed on the end of the shaft, and then passed again through the machine to
receive another cont and so on or the cloth is removel when suficiently coated and
replaced by other cloth to be spread.

page_text: k, is a shaft in suitable bearings upon a bracket from the side frame, at one end,
and on the side frame b, at the other end.
The outside end of this shaft k, has "speed pulleys "k', that is, pulleys of different
diameter for the driving belt to work on that drives the machine, so that it may be
driven at the speed required.
The inner end of the shaft k, has a spur wheel k², upon it that gears with a spur
wheel d, upon the outside end of the shaft d³, of the roller d.
Upon the shaft d³, a bevel wheel d', is also secured which gears with one upon
the end of a shaft 4, in suitable bearings in brackets from the framing. This shaft 1,
extends alongside of the machine to the back and has a bevel wheel 12, loose upon
it (but which is prevented from moving endways upon the shaft) which bevel wheel
gears with one e¹, upon the end of the outside end of the shaft e³, of the back roller
or cylinder e.
The back of the bevel 12, has clutch teeth formed upon it, and there is a corre-
sponding clutch 13, arranged to slide on a fixed key on the shaft 7, the clutch having
a groove for a clutch fork , secured upon a rod 1, sliding endways in suitable
guides in brackets from the framing this rod 1, having a handle 16, near the front
of the machine so that the clutch ³, can be readily moved in and out of gear to
start or stop the rotation of the roller e.
There is a clutch box arrangement in connection with the spur wheel k³, on the
shaft k, and there is a clutch fork lever k³, having its fulcrum on a bracket at k³,
for moving the clutch in and out of gear to stop and start the rotation of the
roller d.
The upper end of this clutch fork lever ³, is jointed to one end of a horizontal
rod, extending the entire width, and in front of the double machine sliding in
suitable brackets upon the framing.
By one of these rods 5, (both marked 5) one side, and by the other rod k³, the
other side of the machine may be stopped and started.
The "doctor" m, is of ordinary arrangement and construction.
It is pivoted at each end in a block m³, that is fitted to slide vertically in guides
in the side and middle frame.
The slide block m¹, is connected with the lower end of a rod m³, that passes up
the tubular adjusting screw m², and is drawn up against the lower end of the
adjusting screw by screw nuts and lock screw nuts m', each having a handle, these
lock nuts screwing upon the rod m³, above the hand wheel m', for the adjusting screw
which screws through a screw tapped bush in the framing.
There is one of these adjusting screw arrangements m², at each end of each
doctor m, so that each doctor has separate adjustment to regulate the thickness of
the coat to be spread upon the fabric.
There is a horizontal adjusting screw n, at the back of the doctor m, and at each
end of it screwing through the frame or a bracket from the frame.
At one end there is a sliding pin n', which can be slided in front of the doctor m,
to keep it in position when at work, and which pin n', can be slided end ways clear
of the doctor when it is to be lifted or turned on one side.
P, are adjustable gauges one on each side, to prevent the dough, which is placed
on the fabric being spread in front of the doctor m, from extending over the edges
of the cloth being operated upon.
The fabric being treated is represented by peculiar dotted lines a and in Fig. 2
the lines, represent the width of each fabric being treated, but any less widths of
fabric may be treated in the machine which may be made of any convenient width
to treat the greatest desired width of fabric.
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 :-
The combination and arrangement of machines for spreading fabrics with dough
mixtures having upon the same combined framing separate operating parts for

page_text: treating one or two fabrics at the same time and with separate doctors adjusted at
each end substantially as and for the purpose hereinbefore described and illustrated
by the drawings.
Dated this Nineteenth day of January 1891.
PETER J. LIVSEY,
Agent.