Improved Apparatus for Cutting India-rubber.
Year: 1894

page_text: Date of Application, 28th May, 1894
Complete Specification Left, 19th Feb.; 1895-Accepted, 30th Mar.,
1895
PROVISIONAL SPECIFICATION.
Improved Apparatus for Cutting India-rubber.
We, GEORGE KAY, of 41 Brunswick Street Hightown Manchester, Manager,
and THE ANCOATS VALE RUBBER COMPANY LIMITED of Palmerston Street,
Ancoats, Manchester, do hereby declare the nature of this invention to be as
follows:
The improvements relate to apparatus for cutting india-rubber, and have for
object to provide a means whereby rubber may be cut into strips, rings, blocks, or
other forms, in a more expeditious manner than at present.
.
To accomplish this, and to effect our improvements, we mount upon a suitable
framework a shaft, which is revolved, by preference, by power, and to which is
attached a sharp disc or cutting tool. Beneath this shaft, we mount a second shaft,
or it may be a fixed stud, carrying a mandril or the like support, which is capable
of being revolved, more slowly than the upper shaft, either by hand, or gearing,
or other means. This mandril is immediately below, and in contact with the cutting
tool on the shaft above, and, for the better protection of the edge of such tool, is
formed, by preference, of india-rubber, or other similarly unresisting material, either
wholly, or at its periphery.
In the case of cutting rubber into strips, the material is provided in cylindrical
form, and of a convenient diameter, and this endless band is then passed onto the
mandril and placed in such position that the cutting tool is in contact with one edge
or selvage thereof.
In forming the rubber band for cutting purposes, the ends of the strip or length
of rubber are, by preference, joined together somewhat out of centre, so that a lip
or projection is formed which provides a starting point for the cutting tool.
When the band is placed in position, the upper shaft, carrying the cutting disc,
is started revolving, and, at the same time, the mandril is revolved, by hand or
otherwise, carrying round the band of rubber, which is thus cut, either into a
number of thin rings, by repeated setting in of the tool, or spirally, into one long
strip, by the traverse of the rubber band, which is held up to a stop or face-plate
which determines and controls the width of the strip.
In the case of cutting rings or lengths of rubber of small dimension in cross
section, we mount an internally bored cylinder or block in lieu of the mandril or
like support described, through the interior of which the rubber is passed until the
amount to be cut off projects beyond the edge of the cutting disc, and which
projection is, by preference, as in the case of strips, regulated by a flange or other
stop, to enable the pieces cut off to be of the desired length.
Suitable apparatus is attached to or mounted in connection with the rubber
cutting mechanism described, whereby water is allowed to fall upon the cutting disc,
to facilitate the division of the rubber, as will be well understood.
Variations in detail may be made, such as in the design of the main framing;
the method of driving the cutter and mandril or like support; the shape of the
cutting tool, and the materials of which all the parts of the apparatus are
composed, without departing from the peculiar character of the invention.
Dated this 26th day of May 1894.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent.

page_text: Improved Apparatus for Cutting India-rubber.
We, GEORGE KAY, of 41 Brunswick Street, Hightown, Manchester, Manager,
and THE ANCOATS VALE RUBBER COMPANY LIMITED, of Palmerston Street.
Ancoats, Manchester, 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 relate to apparatus for cutting india rubber, and have for
object to provide a means whereby rubber may be cut into strips, rings, blocks, or
other forms, in a more expeditious manner than at present.
To accomplish this, and to effect our improvements, we mount upon a suitable
framework a shaft, which is revolved, by preference, by power, and to which is
attached a sharp disc or cutting tool. Beneath this shaft, we mount a second
shaft, or it may be a fixed stud, carrying a mandril or the like support, which is
capable of being revolved, more slowly than the upper shaft, either by hand or
gearing or other means. This mandril is immediately below, and in contact with
the cutting tool on the shaft above, and, for the better protection of the edge of
such tool, is formed, by preference, of india rubber, or other similarly unresisting
material, either wholly or at its periphery.
In the case of cutting rubber into strips, the material is provided in cylindrical
form, and of a convenient diameter, and this endless band is then passed onto the
mandril and placed in such position that the cutting tool is in contact with one edge
or selvage thereof.
In forming the rubber band for cutting purposes, the ends of the strip or length
of rubber are, by preference, joined together somewhat out of centre, so that a lip
or projection is formed which provides a starting point for the cutting tool.
When the band is placed in position, the upper shaft, carrying the cutting disc,
is started revolving, and at the same time, the mandril is revolved, by hand or
otherwise, carrying round the band of rubber, which is thus cut, either into a
number of thin rings, by repeated setting in of the tool, or spirally, into one long
strip, by the traverse of the rubber band, which is held up to a stop or face plate,
which determines and controls the width of the strip.
In the case of cutting rings or lengths of rubber of small dimension in cross
section, we mount an internally bored cylinder or block in lieu of the mandril or
like support described, through the interior of which the rubber is passed until the
amount to be cut off projects beyond the edge of the cutting disc, and which
projection is, by preference, as in the case of strips, regulated by a
stop, to enable the pieces cut off to be of the desired length.
flange or other
Suitable apparatus is attached to or mounted in connection with the rubber
cutting mechanism described, whereby water is allowed to fall upon the cutting
disc, to facilitate the division of the rubber, as will be well understood.
But that the improvements may be better understood, we will, with the aid
of the accompanying drawings, proceed more fully to describe means employed
by us.
DESCRIPTION OF DRAWINGS.
Fig. 1. shews a side elevation of apparatus for cutting rubber in accordance with
our improvements, and Figs. 2. and 3. shew end views thereof.
The same letters indicate corresponding parts wherever they occur.
a. is the main framing, carrying upright bearings b. b. within which is caused to
revolve the shaft c. and the cutting tools or discs d. e.

page_text: 9. is the mandril employed for the cutting of an endless band of rubber h. into
a strip or strips, which mandril is mounted upon a shalt k. capable of turning in
suitable bearings l. l., and is formed of or coated with rubber or like material for
the better protection of the cutting disc e. The surface of the mandril may also be
grooved, as at g' for the same purpose.
In operation, the rubber band h. which is so joined, by preference, as to leave a
lip or projection has a starting point for the tool, is brought in contact with the
face plate or stop m. (which is adjusted according to the width of strip required,)
when the mandril is revolved by hand or other means, and the band is cut into a
strip or strips.
n. is an internally bored cylinder or block, which is capable of swivelling upon
a spindle o. suitably mounted in bearings p. or of sliding, or being otherwise
actuated; through which hollow mandril lengths of rubber f. of smail diameter
are passed for the purpose of being cut into rings or cylindrical or other blocks.
These lengths are projected through the cylinder until one end thereof comes
in contact with the face plate or stop r. which is adjusted to the length of rubber
required to be cut, when the oscillatory or other cylinder is moved towards the
tool, which cuts off the lengths of rubber as desired.
A guide s may be provided upon the cylinder, to prevent the tool from turning
out of the proper line.
Both the cutting discs have suitable water supply, which, in the case shewn,
consists of guards t. t. supported by the journals b. b., and connected to water
pipes u. u.
v. w. are fast and loose pulleys upon the shaft c.,.
but other means for turning
this shaft may be adopted, and variations in detail, such as the design of the main
framing, the method of driving the cutter and mandril, or like support, the shape
of the cutting tools, and the materials of which all the parts of the apparatus are
composed, may be made without departing from the peculiar character of the
invention.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In apparatus for cutting india rubber, a revolving cutting disc or tool, in
combination with a revolving mandril, upon which mandril rubber to be cut into
a strip or strips is placed and brought in contact with such tool, for the purpose
and in manner substantially as herein shewn and described.
2. In apparatus for cutting india rubber, a revolving cutting disc or tool, in
combination, with a hollow cylinder within which lengths of rubber to be cut into
blocks are introduced and brought in contact with such tool, for the purpose and
in manner substantially as herein shewn and described.
3. In apparatus for cutting india rubber, the combination of parts for the
purpose and in manner substantially as herein shewn and described.
Dated this 18th day of February 1895.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent.