Improvements in Pneumatic Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1896

page_text: Date of Application, 14th Aug., 1896
Complete Specification Left, 14th May, 1897--Accepted, 14th Aug., 1897
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for the Wheels of Velocipedes and
other Vehicles.
WILLIAM FREDERICK HILL 21 Henry Street, Dublin, Ireland Boot Warehouseman
do hereby declare the nature of this invention to be as follows:-
I prepose to make my tyre in the following manner, I take a tube the same
diameter as of the wheel, and slit it open on the inside next the rim, and
place a turn up flap of India-Rubber on each of the sides of the edge
of the tube which is cut to stand up inside of the tube 30 that when the
tube closes the two flaps lie against each other and the pressure of the air when
inflated compresses them together and so prevents the air from escaping, thus
forming an air tight tube or tyre, I then spring it into the hollow rim and inflate it,
the tube when inflated in the hollow of the rim becomes hard and cannot spring off,
I also place a ridge round the outside of the tube or tyre at the edge of the opening
in the tube, and when the tube is closed the two form a ridge, there is a hollow made
in the rim to receive the two and when the tube is inflated it compresses the flaps
together, and the wedges into the hollow which is made in the rim and thus making
an air tight tyre. The tube flaps and ridge will be cast in one, of India Rubber or some
other suitable material.
Dated this 14th day of August 1896.
WILLIAM FREDERICK HILL
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tyres for the Wheels of Velocipedes and
other Vehicles.
WILLIAM FREDERICK HILL 21 Henry Street Dublin Ireland Boot Maker and
Warehouseman 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:--
I take a circular india rubber tube A Sheet 1 Fig. 1 slit it on the inside Band place
wedges C on the outside at the edge of the opening the thick end to the tube when closed
it forms a V. I roll a rim D. Fig. 2 with a V grove in the botton, smaller then the
rubber wedges, when the tube is sprung into the rim it is pressed down into groove by
which the are pressed together which makes the tube air tight Fig. 2. I take a
circular india rubber tube Sheet 2 Fig. 1A and slit it on the inside B and place my
wedges C a suitable distance from the edge one on the outside and the other on the
inside the thin edge of the wedge toward the edge of the tube, I spring the side with
the wedge on the outside in and beyond the wedge on the inside when it springs

page_text: back the large ends of wedges ineet and seal the tube. The wedges are placed on
their sides. The tube when sprung into a deep rim remains, Fig. 2.
I take a circular india rubber tube A Sheet 3 Fig. 1. I place wedges B in a suitable
position on the tube to enter a groove at edge of rim. I then split open the tube
three inches C and leave one inch uncut D and again cut three inches and so on
round the tube, by this means I retain it as a tube, and the three inches cut gives
access to repair punctures.. I line ny rim with thin rubber to further seal the tube.
I take a circular india rubber tube A Fig. 3 and slit it open on the inside next rim C
and place iny wedges B proper distance from the open to catch in a groove at the
edge of the rim which rin I line with india rubber or other suitable substance, when
the tube is sprung on the rim with a strain and inflated the rubber of the tube is
compressed into the rubber of the rim, and becomes air tight.
Having now particularly described and asertained the nature of my said
invention, and in what manner the same is to be performed I declare what
I claim
1. I claim the seating of an open tube by means of wedges or welts pressed into
grooves in the rim.
2. I claim the lining of the inside of the rim in whole or part with india rubber or
other suitable material.
3. I claim the seating of the tube by means of wedges or welts inside and outside
as described above.
14th day of May 1897
WILLIAM FREDERICK HILL,
21 Henry Street, Dublin, Ireland.