A Machine for Running Plastic Material upon Travelling Surfaces, and Dividing it (if required) into Sections or Lengths.
Year: 1888

page_text: Date of Application, 10th Dec., 1888
Complete Specification Left, 10th Sept., 1889-Accepted, 26th Oct., 1889
PROVISIONAL SPECIFICATION.
A Machine for Running Plastic Material upon Travelling Surfaces,
and Dividing it (if required) into Sections or Lengths.
I, HENRY MICHAEL STEINTIAL of Scarborough in the County of York, Managing
Director of the Scarborough Patent Tiled Floor Cloth Company Limited do hereby
declare the nature of this invention to be as follows:-
My invention consists of a machine for running plastic material upon travelling
surfaces, and dividing it (if required) into sections or lengths; the machine has been
specially designed for running paint composition upon zinc plates or "pads," carried
by an endless travelling band, and for dividing the continuous layer or sheet of paint
composition thus produced into lengths or sections corresponding with the length of
the plates or pads, so that these plates with their covering of paint composition may
be subsequently dried, and the paint composition then stripped off and used in the
manufacture of floor cloths, wall coverings or other like purposes; the invention applies,
however, to running other plastic material upon travelling surfaces and dividing it
when required into lengths or sections.
My machine consists essentially of (1) two horizontal revolving cylinders placed at
such a distance apart as to allow a continuous thin stream or sheet of the paint com-
position or plastic material to run through between them, one of these cylinders.
having a greater surface speed than the other; (2) a knife or stripper for removing
the sheet of material from the faster revolving cylinder to which it will adhere; (3) a
travelling surface upon which the material falls as it is stripped from the cylinder; -
and (4) a reciprocating knife or cutter which cuts the material transversely into lengths
or sections as it moves along with the travelling surface. This knife may be dispensed
with in cases where the material is not required to be divided.
Having explained the main features of the machine I will proceed to describe
more in detail the manner in which it can be constructed. In suitable bearings I
mount two horizontal cylinders whose surfaces are at a slight distance from each
other, say about th of an inch, the distance being capable of regulation by means of
screws or otherwise, according to the thickness of the sheet required. These cylinders
are caused to revolve in reverse directions, so that the plastic material which is placed
in the hopper-like space between them may be carried or allowed to flow in a thin stream or
sheet through the space of th of an inch more or less above described. One of these
cylinders is driven at a greater surface speed than the other and the sheet of
material consequently adheres thereto. Below, and in contact with this cylinder is a
knife or stripper, which, as the cylinder comes round, strips off the material in a
continuous sheet. Below the level of the knife is an endless travelling band upon
which (for most purposes) are laid, in continuation of each other, zine plates or pads;
these plates or pads receive the continuous sheet of material as the same is stripped
off the cylinder. Beyond the cylinders is a transverse knife or cutter having a rising
and falling movement produced by a cam and spring, or otherwise, its movement
being so timed in relation to the onward movement of the band and pads, that at
each descent it divides the plastic material between two adjoining pads. The pads, in
their further onward movement with the band, therefore, carry each a separate length
or section of the material, and they are removed at the rear end of the machine.
Fresh pads are of course continuously supplied at the front end of the machine,
being placed upon the endless travelling band. In the case of plastic material
which has to be dried it should be allowed to remain on the pads in the drying room
or chamber.
-000

page_text: COMPLETE SPECIFICATION.
A Machine for Running Plastic Material upon Travelling Surfaces,
and Dividing it (if required) into Sections or Lengths.
I, HENRY MICHAEL STEINTHAL of Scarborough in the County of York, Managing
Director of the Scarborough Patent Tiled Floor Cloth Company Limited 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 :-
My invention consists of a machine for running plastic material upon travelling
surfaces and dividing it (when required) into sections or lengths; the machine has
been specially designed for running paint composition of about the consistence of
putty upon zinc plates or "pads " carried by an endless travelling band and for dividing
the continuous layer or sheet of paint composition thus produced into lengths or
sections corresponding with the length of the plates or pads, so that these plates with
their covering of paint composition may be subsequently dried and the paint then
stripped off and used in the manufacture of floor cloths, wall coverings or other like
purposes; the invention applies, however, to running other plastic material of like
consistence upon travelling surfaces and dividing it when required into lengths or
sections.
My machine consists essentially of (1) two horizontal revolving cylinders placed
at such a distance apart as to allow a continuous thin stream or sheet of the paint
composition or plastic material to run through between them, one of these cylinders
having a greater surface speed than the other, so that the plastic material will
all adhere thereto; (2) a knife or stripper for removing the sheet of material from
the faster revolving cylinder to which it will adhere; (3) a travelling surface upon
which the material falls as it is stripped from the cylinder; and (4) a reciproca-
ting knife or cutter which cuts the material transversely into lengths or sections as it
moves along with the travelling surface. This knife may be dispensed with in cases
where the material is not required to be divided.
'
Having explained the main features of the machine I will proceed to describe more
in detail the manner in which it can be constructed, and for this purpose I will refer
to the accompanying drawings of which
Figure 1 is a side elevation, Figure 2 an end elevation and Figure 3 a plan
of a machine in which my invention is embodied. In suitable bearings 1 mount
two horizontal cylinders a and b whose surfaces are at a slight distance from each
other, say about one-eighth of an inch; the distance between the surfaces is capable
of regulation according to the thickness of the sheet required, and this regulation
can be conveniently effected by means of screws c c fitted with hand wheels dᵒd, these
screws when rotated serving to shift the bearings of the cylinder a. Springs e act
upon the opposite side of the bearings.
The cylinders a and b are caused to revolve in reverse directions so that the plastic
material which is placed in the hopper-like space between them may be carried or
allowed to flow in a thin stream or sheet through the space of one-eighth of an inch
more or less above described. One of these cylinders, viz. ;-a is driven at a greater
surface speed than the other 6 (in the ratio of say seven to six) and the sheet of
material consequently adheres to a. The cylinders a and b can be driven by any
convenient gearing; according to the arrangement for this purpose shown in the
drawings a pinion g on the driving shaft drives a wheel on a shaft on which is a
pinion gearing in turn with a wheel k on the shaft of the cylinder b; the wheel k
meshes with a wheel of somewhat smaller diameter on the shaft of the cylinder a.
Below and in contact with the cylinder a is a stationary knife or stripper m, which,
as the cylinder a comes round strips off the material in a continuous sheet. The
knife.m is kept in contact with the cylinder by means of a weight n hung from an
arm p fixed to the spindle 9 on which the knife is mounted. Below the level of the
knife m is an endless travelling baud upon which (for most purposes) are laid in

page_text: continuation of each othér zinc plates or pads (not shown); these plates or pads
receive the continuous sheet of the material as the same is stripped off the cylinder.
The band passes over rollers sa at the two ends of the machine and receives its
motion by means of a belt t which passes over a pulley u on the shaft of one of the
rollers ss, and over a pulley on the shaft of the cylinder b. Beyond the cylinders a b
is a transverse knife or cutter to having a rising and falling movement so timed in
relation to the onward movement of the band and pads that at each descent it divides
the plastic material between two adjoining pads. The rising and falling movement
of the knife w can be produced in any suitable manner. The preferred arrangement
is shown in the drawings and consists of a cam a mounted on the shaft i and acting
on a boss y on a fram z on which the knife is carried; this frame is pivoted at
and is fitted with springs which tend to keep the knife raised. At every turn
of the shaft the cam forces down the knife to make the cut and then the springs <
raise the knife again. The pads in their further onward movement with the band "
thus carry each a separate length or section of the material and are removed at the
rear end of the machine. Fresh pads are of course continuously supplied at the
front end of the machine, being placed upon the band r. A is a knife for cleaning
the surface of the cylinder b; it is kept in contact therewith by weighted arms B B;
any small portions of material which adhere to the cylinder bare scraped off by and
accumulate at this knife and should be removed by hand from time to time.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what
I claim is :-
1. A machine for running plastic material upon a travelling surface, comprising
two horizontal rotating cylinders set at such a distance apart as to allow a thin
stream or sheet of plastic material to run through between them, means for driving
these cylinders at differential speeds, a knife or stripper for removing the sheet from
the faster rotating cylinder, and a travelling surface upon which the sheet falls as it is
stripped from this cylinder, substantially as set forth.
2. A machine for running plastic material upon a travelling surface and dividing it
into sections or lengths comprising two horizontal rotating cylinders set at such a
distance apart as to allow a thin stream of plastic material to run between them,
means for driving these cylinders at differential speeds, a knife or stripper for removing
the sheet from the faster rotating cylinder, a travelling surface upon which the sheet
falls as it is stripped from the cylinder, and a reciprocating knife or cutter to cut the
sheet transversely into lengths or sections as it moves with the travelling surface, sub-
stantially as set forth.
3. In a machine for running plastic material upon a travelling surface and dividing
it into sections or lengths, the combination of two horizontal rotating cylinders set at
such a distance apart as to allow a thin stream of plastic material to run between
them, means for driving these cylinders at differential speeds, a knife or stripper for
removing the sheet from the faster rotating cylinder, a travelling surface upon which
the sheet falls as it is stripped from this cylinder, a reciprocating knife or cutter to cut
the sheet transversely into lengths or sections as it moves with the travelling surface,
and a knife or scraper to clean the surface of the slower rotating cylinder substantially
as set forth.
4. The combination with the rotating cylinder a rotating cylinder b moving at less
speed than cylinder a, knife or stripper m kept in contact with cylinder a, endless
travelling band r, reciprocating knife or cutter w and its pivoted frame y, of the
cam and springs 2 for operating the said knife or cutter w substantially as set
forth.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.