IMPROVEMENTS IN MACHINERY OR APPARATUS FOR PRODUCING SEAMLESS INDIA-RUBBER TUBING
Year: 1884

page_text: PROVISIONAL DPECIFICATION.
I, JAMES IDDON, of Town Gate, Leyland in the County of Lancaster, Mechanical
Engineer in the employ of The Leyland Rubber Company, do hereby declare the
nature of said invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
PRODUCING SEAMLESS INDIA-RUBBER TUBING," to be as follows :—
This invention of improvements in machinery or apparatus for producing
seamless india-rubber tubing consists in the employment of a pair of feed rollers
for conducting or forcing the rubber into the die chamber and through the usual
annular opening surrounding the die. The feed rollers are rotated by means of
suitable gearing and are carried in end bearings mounted upon a stand or framing.
The rollers are hollowed or cored out so that water of the required temperature
may be passed through them, the ends of the rollers being provided with water
tight bearings connected to the supply and waste water pipes which conduct the
water to and from the rollers respoctively. Adjustable scrapers are provided for
the purpose of removing material which may have attached itself to the peripheries
of the rollers.
The die chamber and die are arranged in the usual manner, the die being
preferably formed with a central hole through which spiral wire, or solid, or other
forms of core may be passed into the interior of the tube as it issues from the die
chamber,

page_text: COMPLETE SPECIFICATION.
I, JAMES IDDON, of Town Gate, Leyland, in the County of Lancaster, Mechanical
Engineer in the employ of The Leyland Rubber Company, do heroby declare the
nature of my invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
PRODUCING SEAMLESS INDIA-RUBBER TUBING " and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:
This Invention of improvements in machinery or apparatus for producing
seamless india-rubber tubing consists in the employment of a pair of feed rollers
for conducting or forcing the rubber into the die chamber and through the usual
annular opening surrounding the dio. The feed rollers are rotated by means of
suitable gearing and are carried in end bearings mounted upon a stand or framing.
The rollers are hollowed or cored out so that steam or water of the required
temperature may be passed through them, the ends of the rollers being provided
with water tight bearings connected to the supply and wasto pipes which conduct
tho steam or water to and from the rollers respectively. Adjustable scrapers are
provided for the purpose of removing material which may have attached itself to
the peripheries of the rollers. The die chamber and die are arranged in the usual
manner, the dio being preferably formed with a central hole through which spiral
wire, or solid, or other forms of core may be passed into the interior of the tube as
it issues from the die chambor.
In the accompanying Drawings Fig. 1 is a sectional end view and Fig. 2 a
soctional side view of one form of machino for producing scamless india-rubber
tubing arranged according to my invention.
AA is the stand or framing carrying the end bearings for the feed rollers BB
geared together by the toothed wheels CC and driven at the other side of the
machine through the geared wheels D'D' and E E! from the pulley F. The rollers
are made with a hollow cavity g communicating with the supply and waste water
or steam pipes h h' working in the water tight bearings or stuffing boxos ; i.
Running across the faces of the rollers B B are the adjustable scrapers kl provided
at one end with setting up scrows 22 and bearing at their other ends against the
peripheries of the rollers B B. G is the die chamber, H the die preferably formed
with the central hole or aperture m, and I the die plate all of which may be
arranged as shewn or in any other convenient manner. The rubber is suppliod to
the feed rollers at n and is forced through the passage o into the die chamber G,
the pressure of the material within the passage o tending to force the scrapers k k
against the faces of the rollers BB,
Although I have described and shewn my improved apparatus as operating so
that the tubing will be delivered from the die chamber vertically it may be

page_text: obviously arranged to deliver it horizontally or diagonally by altering the relative
positions of the feed rollers and arranging the die chamber accordingly.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
-
In machinery or apparatus for producing seamless india-rubber tubing the use or
employment of rotating rollers for conducting or forcing the rubber into the die
chamber substantially as described and shown in the Drawings.
Dated this 29th day of June 1885.
Witness
YATES W. BOOTH,
Patent Agent,
Preston, Lancashire.
JAMES IDDON.