Improvements in or in connection with Pneumatic Tyres for Wheels for Cycles, Road Vehicles, Buffing Wheels, Friction Driving Wheels, and the like.
Year: 1893

page_text: Date of Application, 29th July, 1893
Complete Specification Left, 28th Apr., 1894-Accepted, 2nd June, 1894
PROVISIONAL SPECIFICATION.
Improvements in or in connection with Pneumatic Tyres for Wheels
for Cycles, Road Vehicles, Buffing Wheels, Friction Driving
Wheels, and the like.
I HERBERT OWEN ODDY of Brighton Cottage, Bramley, Leeds in the County
of York Cycle Manufacturer do hereby declare the nature of this invention to
be as follows:-
My invention refers to pneumatic tyres for wheels for cycles, road vehicles,
buffing wheels, friction driving wheels and the like, but is hereunder described with
reference to that class of tyres for cycles, which are formed with an inner rubber
or air tube, which is lined on the outside with canvas or other support, and this latter
covered with wearing rubber or other material formed as a tube or forming a tube
with the metal rim.
My invention more particularly refers to the means or mode of joining the edges
or sides of the outer or wearing rubber or material with each other and with the
metal rim of the wheel, so that whilst the outer tube can be readily detached from
the rim when the air tube is collapsed, it is securely connected to the rim when
there is but a very slight air pressure within the air tube.
In my invention' the two opposite sides or edges of the outer rubber or wearing
tube, where they join each other beneath the metal rim, are formed, the one with
an arrow or wedge flap, and the other with a fork or split flap, the former being
inserted in the slit in the latter. The canvas strengthening cover has its outer sides
or edges overlapped and held securely together by carrying them more or less folded
in the surface or line of contact (or what would be the surface or line of contact) of
the two flaps.
The metal rim of the cycle is turned over so as to secure or grip the above
mentioned opposite sides of the outer tube which are swelled or formed with ridges
for this purpose.
In the case of friction driving wheels the outer rubber tube is preferably moulded
or formed with longitudinal or transverse corrugations.
Dated thin n0th day of T..l., 1902
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.
*COMPLETE SPECIFICATION.
Improvements in or in connection with Pneumatic Tyres for Wheels
for Cycles, Road Vehicles, Buffing Wheels, Friction Driving
Wheels, and the like.
I HERBERT OWEN ODDY of Brighton Cottage Bramley Leeds in the County
of York Cycle Manufacturer 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 refers to pneumatic tyres for wheels for cycles, road vehicles,
buffing wheels, friction driving wheels and the like; but is hereinunder described
with reference to that class of tyres for cycles, which are formed with an inner

page_text: rubber or air tube, which is lined on the outside with canvas or other support, and
this latter covered with wearing rubber or other material as a protective to the air
tube, and forming a tube by itself or with the metal rim.
My invention more particularly relates to the means or mode of joining the edges
or sides of the outer or wearing rubber, (or other material hereinafter referred to
as the wearing rubber), with each other and with the metal rim of the wheel, so
that whilst the outer tube can be readily detached from the rim when the air tube
is collapsed, it is securely connected to the rim when there is but a very slight air
pressure within the air tube.
In my invention the two opposite sides or edges of the outer or wearing tube,
where they join each other beneath the metal rim, are formed the one with an
arrow or wedge flap, and the other with a fork or split flap; the former being
inserted in the split in the latter. The canvas strengthening cover has its edges
over lapped upon themselves respectively or round a wedge shaped packing or
packings, and held securely together by carrying them more or less folded in the
surface or line of contact, (or what would be the surface or line of contact) of the
two flaps. It will be understood that the folds of the canvas strengthening cover
of the air tube are embedded or enclosed in the folds of the outer wearing tube
forming the arrow and fork flaps, and that the folds may be secured together by
cementing or stitching.
The metal rim of the cycle wheel is turned over so as to secure or grip the
above mentioned opposite sides of the outer tube, which are swelled or formed
with ridges owing to the above described construction of the flaps; or such swells
or ridges may be purposely formed or moulded at the roots of the flaps.
In the case of friction driving wheels the outer rubber tube is preferably moulded
or formed with longitudinal or transverse corrugations.
And in order that my invention and the manner in which the same is to be
performed may be more readily and clearly understood I have annexed hereto as:
an illustration the accompanying drawing, which is a cross section of a pneumatic
tyre for a cycle wheel constructed in accordance with my invention.
a is the inner rubber or air tube.
bis the metal rim of the cycle wheel.
c is the canvas strengthening or support for the air tube, which in the drawing is.
shewn folded round the linoleum wedge section packing strips d, though it may be
folded upon itself to obtain the wedge section (and dispensing with the packing
strips) for example as indicated by Fig. 2.
e is the outer wearing tube folded over the canvas folds c. In one of the sides
of the forked flap. the, wearing tube is shewn folded directly round the packing:
strip d.
fis the stitching securing the folds together.
It will be noticed that the construction here illustrated produces an external
swell or ridge near the roots of the flaps, which catch in the internal recesses
formed by turning over the edges of the metal rim. This in conjunction with the
bedding of the arrow flap between the wings of the fork flap, ensures a securely
locked connection of the sides of the wearing tube, which cannot be disengaged
whilst there is the slightest air pressure within the tube, and this connection
holds itself together even when there is no pressure of air within the tube, so that
if the air tube is punctured, the pneumatic tyre is still held in place until purposely
detached.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
4
1. The method of securing the sides er edges of the outer or wearing tube
characterized by forming one of the said sides or edges with a wedge or arrow flap
and the opposite side with a fork or split flap and inserting the former between the 5
forks or wings of the latter.

page_text: 2. The method of securing the sides or edges of the canvas strengthening cover
of the rubber air tube by folding the said sides or edges within the wedge or arrow
flap and one or both wings or forks of the fork or split flap of the outer or
wearing tube.
3. The herein described method of securing the air tube to the metal rim of the
wheel by means of the outer or wearing tube.
4. The herein described construction by folding of the arrow or wedge and fork
or split flaps.
5. The construction of pneumatic tyres substantially as herein set forth or
illustrated in the accompanying drawing.
Dated this 26th day of April 1894.
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.