Improvements in or relating to Wheel Rims and Pneumatic Tyres therefor.
Year: 1898

page_text: Date of Application, 27th Oct., 1898
Complete Specification Left, 27th July, 1899-Accepted, 9th Sept., 1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to Wheel Rims and Pneumatic Tyres
therefor.
I, WILLIAM MORRIS, of 27, Rennie Street, Liverpool, in the County of Lancaster,
Cycle Works Manager, do hereby declare the nature of this invention to be
as follows:-
This invention relates to wheel rims and pneumatic tyres therefor, and has
for its object a new or improved arrangement for holding the outer cover of
such tyres on to the rim.
In carrying the invention into effect, I provide a rim in which there are a
pair of channels or grooves all round the rim, one on each side, by which
the edges of the pneumatic tyre cover are engaged. These channels are by
preference of segmental circular shape in cross section, that is to say each
channel is circular in cross section with a hiatus or opening by which access
can be had into the channel interior. These openings are on opposite sides of
the channelled rim. The tyre cover is formed with flanges or abutments at
the edges, which in their normal position are wider than the openings in the
channel, but when turned round are capable of entering the channels and locking
themselves therein. These abutments when the channels are made in circular
tube form, are by preference semi-circular, so that the rounded edge will con-
form to the inside configuration of the tube.
The mode of action is as follows:-
The edges of the tyre cover are turned so as to present their narrowest width
to the openings in the rim channels and in this position they will freely enter
the channels. When this is effected the flanges are turned back again so that
the broad side will engage the inside of the channels and thus firmly hold the
cover in place. The tyre can now be inflated and cannot by any possibility come
off, the abutments or flanges being held firmly in the channels aforesaid.
By this invention repairs to the tube can be very easily effected, as the tyre
cover can be instantly removed if the tyre be deflated.
Dated this 26th day of October 1898
Improvements in or relating to Wheel Rims and Pneumatic Tyres
therefor.
I, WILLIAM MORRIS, of 27, Rennie Street, Liverpool, in the County of Lancaster,
Cycle Works Manager, do hereby declare the nature of this invention and in
[Price 8d.1

page_text: what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
This invention relates to wheel rims and pneumatic tyres therefor, and has
for its object a new or improved arrangement for holding the outer cover of
such tyres on to the rim.
The invention will be understood from the following description, reference
being had to the accompanying drawings, in which,
Figure 1 is a segmental view of my tyre, applied to the rim of a cycle wheel;
Figure 2, a sectional view of the cover separated from the rim.
Referring to these figures, A is the tyre cover, B the air tube, C the rim,
1) the spokes, and H the canvas part of the tyre cover. I provide the rim with
a pair of channels or grooves E all round the rim, one at each side, by which
the edges of the pneumatic tyre cover A are engaged. These channels E are
eachi
by preference of segmental circular shape in cross section, that is to say,
channel is circular in cross section with a hiatus or opening G by which access
can be had into the channel interior. These openings are on opposite sides of
the channelled rim. The tyre cover is formed with flanges or abutments F at
the edges, which in their normal position are wider than the openings G in
the channels, but when turned round are capable of entering the channels
and locking themselves therein. These abutments when the channels are made
in circular tube form are by preference semi-circular, so that the rounded edge
will conform to the inside configuration of the tube. The rim can be made of
metal, wood or any other suitable material.
The mode of action is as follows:-
The edges F of the tyre cover are turned so as to present their narrowest
width to the openings G in the rim channels E. and in this position they will
freely enter into the channels. When this is effected the flanges F are turned
back again so that the broad side will engage the inside of the channels E and
thus firmly hold the cover in place. The tyre can now be inflated, and cannot
by any possibility come off, the abutments or flanges being held firmly in the
channels aforesaid.
By this invention repairs to the tube can be easily effected, as the tyre cover
can be instantly removed if the tyre be deflated.
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
1. The improvement in attaching and securing the covers of pneumatic tyres
to wheel rims, which consists in forming at the edges of the tyre cover flanges
or enlargements broader one way than the other, and in making channels or
grooves all round the rim, one at each side, each having a hiatus or opening
through which the flanged or enlarged edges can be passed edgeways into the
channel interior, and then turned round so as to present their broad sides to
the inside of the channels, substantially as described.
2. In a pneumatic tyre, the combination of a wheel rim having formed all
round laterally at each side narrow mouthed channels, and a tyre cover having
flanges or enlargements broader one way than the other, whereby if the edges
of the cover be passed laterally narrow ways into the channels, and then turned
so as to present their broad sides to the inside of the narrow mouths, and the
tyre be inflated, the cover will be secured in place.
ו...
11: Den dow of T... 1900
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham and London.