A Moveable Reversible Callender Applicable to Spreading Machines
Year: 1887

page_text: Date of Application, 24th Oct., 1887
Complete Specification Left, 23rd July, 1888
Complete Specification Accepted, 19th Oct., 1888
PROVISIONAL SPECIFICATION.
A Moveable Reversible Callender Applicable to Spreading Machines
1, WILLIAM COULTER of Chorlton-on-Medlock, Manchester, in the County of
Lancaster Superintendent Spreader do hereby declare the nature of this invention to
be as follows:-
The improvements which are the subject of this invention, relate to machines that
are used for spreading india rubber or other similar materials upon fabrics, and the
object of this invention is to provide means for imparting a highly finished or glassy
surface to the face of said fabrics during the process of coating: In this invention, on
each side and preferably on upper part of frame or other structure which usually
supports the steam chests or heaters in a machine employed for spreading india rubber
or other like materials upon fabrics, I form a rack-extending a convenient distance
in a longitudinal direction, constructed so as to slide or be moved longitudinally by
means of pinions mounted on a transverse shaft or other suitable gearing: To each
of these racks I attach a bracket so as to support or carry the ends of rollers placed
transversely between said brackets: In the arrangement of these transverse rollers, the
position occupied and number employed may vary, but I prefer to use two rollers
placed one above the other said rollers being supported by aforesaid moveable brackets:
I form the upper or finishing roller either of metal which is japanned, plated, or
otherwise polished or I use a roller formed of glass, earthenware, enamelled metal,
or other glazed substance: 1 form the lower or carrying roller of vulcanite, paper,
or other suitable material so as to protect the back of the texture when it is desirable
not to use a metal roller: the upper or finishing roller may be worked by the forward
movement of the fabric only, or may be actuated by friction straps worked from either
or both ends of the machine: I attach either to the machine or to aforesaid moveable
brackets, transverse controlling rollers to keep the fabric in contact with the heater:
during the forward movement of the fabric in process of manufacture, said fabric passes
under the leading controlling roller, is then carried over the bottom roller and under
the upper or finishing roller, passing from thence under the trailing controlling roller,
and continues its course along the heater: by means of the moveable brackets which

page_text: support or carry the finishing roller, the operator can place said finishing roller at
any distance from the spreading gauges that may be required according to the
adhesive nature and dryness of the compound being used as dough, and thus cause the
surface of the texture to slightly adhere to the face of the finishing roller, while
the glazed nature of the material of which the finishing roller is composed prevents
permanent adhesion, and imparts a smooth and glassy surface to said texture when
drawn away from finishing roller by the forward movement of the fabric through the
machine In the operation of winding the piece back the face can be extra finished
by being passed a second time under the finishing roller: When the machine is
constructed of sectional chests, the bottom roller can be lowered between them so as
to be level with surface of said chests.
In order to lessen friction in the bearings of said rollers, I prefer to support them
between the herein before mentioned brackets by means of set pins or screws, having
pointed ends, or if resting on said brackets I form ball bearings on which the spindles
of said rollers may revolve.
D
1

page_text: COMPLETE SPECIFICATION.
A Moveable Reversible Calender Applicable to Spreading Machines.
I, WILLIAM COULTER of Chorlton-on-Medlock Manchester, in the County of
Lancaster Superintendent Spreader 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 improvements which are the subject of this invention relate to machines that are
used for spreading india rubber or other similar materials upon fabrics, and the object
of this invention is to provide means for imparting a highly finished or glassy surface
to the face of said fabrics during the process of coating: In this invention, on each side,
and preferably onthe upper part of frame or other structure which usually supports the
steam chests or heaters in a machine employed for spreading india rubber or other like
materials upon fabrics, 1 form a rack extending a convenient distance in a longitudinal
direction, constructed so as to slide or be moved longitudinally by means of pinions
mounted on a transverse shaft, or other suitable gearing: To each of these racks I attach a
bracket so as to support or carry the ends of rollers placed transversely between said
brackets: In the arrangement of these transverse rollers, the position occupied and
number employed may vary, but I prefer to use two rollers placed one above the
other, said rollers being supported by aforesaid moveable brackets: 1 form the upper
or finishing roller either of metal which is Japanned, plated, or otherwise polished, or
I use a roller formed of glass, earthenware, enamelled metal, or other glazed substance:
I form the lower or carrying roller of vulcanite, paper, or other suitable material so
as to protect the back of the texture when it is desirable not to use a metal roller: the
upper or finishing roller may be worked by the forward movement of the fabric
only, or may be actuated by friction straps worked from either or both ends of the
imachine I attach either to the machine or to aforesaid moveable brackets, transverso
controlling rollers to keep the fabric in contact with the heater during the forward
movoment of the fabric in process of manufacture said fabric passes under the leading
controlling roller, is then carried over the bottom roller and under the upper or finishing
roller, passing from thence under the trailing controlling roller, and continues its
course along the heater by means of the moveable brackets which support or carry
the finishing roller the operator can place said finishing roller at any distance from the
spreading gauges that may be required according to the adhesive nature and dryness of
the compound being used as dough, and thus cause the surface of the texture to
slightly adhere to the face of the finishing roller, while the glazed nature of the material
of which the finishing roller is composed prevents permanent adhesion, and imparts a
smooth and glassy surface to said texture when drawn away from finishing roller
by the forward movement of the fabric through the machine: In the operation of
winding the piece back the face can be extra finished by being passed a second time
under the finishing roller: When the machine is constructed of sectional chests the
bottom roller can be lowered between them so as to be level with surface of said chests.
In order to lessen friction in the bearings of said rollers I prefer to support them
between the herein before mentioned brackets by means of set pins or screws having
pointed ends, or if resting on said brackets I form ball bearings on which spindles of said
:

page_text: rollers may revolve:: Reversible motion is obtained by the forward movement of the
texture as in double ended spreading machines or by suitable straps and gearing.
In the drawings hereunto annexed, Fig. 1. represents side view and Fig. 2. plan of
a double ended spreading machine constructed in accordance with my patent No. 14250
A.D. 1885. to which I have applied a moveable reversible calender such as is herein
before described, and which forms the subject of this my invention.
In these views a is the frame of machine, 6 the steam chests or heaters, c and c¹ the
driving drums. The moveable calender is contained between the side brackets d and d¹.
The finishing roller e and the calendering roller fare supported between side brackets d
and by means of set pins g. I attach pulleys and h¹ to ends of shafts carrying driving
drums. To ends of finishing roller I attach pulleys, and to end of calendering roller I
attach pulleys k. The pulleysj and kare formed with teeth on their edges, or have toothed
wheels attached to them so as to gear into each other: By means of the driving drum c
when in gear and the belt or strap which passes over and connects the pulleys and k.
the calendering roller is caused to rotate in one direction: and by means of the
driving drum c¹ when in gear running in an opposite direction and the belt or strap
which passes over and connects the pulleys h and j, the callendering roller
rotate in a reverse direction: m and m² are controlling rollers and may be placed at any
height from steam chests. The finishing roller is raised or lowered by means of the
vertical screws which are attached to sliding blocks s in which rest the ends of shaft
carrying finishing roller.
caused to
The screws are attached by bevel wheels t and t' and the wheel v. The finishing
and calendering rollers are moved along the machine so as to be placed at any distance
from the spreading gauges by means of the racks o, o' and either the pinion p or q
which are placed on opposite sides of the machine.
Fig. 3. represents the hereinbefore described moveable calender applied to an ordinary
spreading machine. In machines in which sectional chests are employed said calender
may be placed at any part of the machine and the calendering roller may be lowered
so as to be level or nearly level with the steam chests or heaters b.
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
1st. In a spreading machine that is used for spreading india rubber or other similar
materials upon fabrics, the application of a moveable reversible calender, which is or
may be composed of two or more rollers, in combination with a frame that is adjustable,
and may be placed at any position between the spreading gauge and the driving drum
and in conjunction therewith, said rollers which form calender being arranged so as to
be dispensable when it is desired not to calender the texture being spread substantially
as herein before described.
2nd. In a spreading machine that is used for spreading india rubber or other
similar materials upon fabrics, the application of enamelled metal or glass rollers to the
surface of india rubber textures during the process of spreading, substantially as herein
before described.
3rd. Reversible motion applied to calender or finishing rollers either by the forward
movement of the fabric or by suitable straps and gearing, substantially as herein above
described.
011 1
ր T 1 1009