Improvements in or connected with the Attachment of Pneumatic Tyres to Wheels.
Year: 1895

page_text: Date of Application, 9th Feb., 1895
Complete Specification Left, 8th Nov., 1895-Accepted, 14th Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Attachment of Pneumatic
Tyres to Wheels.
I, JAMES YATE JOHNSON of 47 Lincoln's Inn Fields in the County of
London Gentleman do hereby declare the nature of this invention (which has
been communicated to me from abroad by La Société des Pneumatiques
Français of Paris in the Republic of France,) to be as follows:-
This invention relates to pneumatic tyred wheels wherein the tyre is secured
in a recess or groove in the periphery of the felloe by means of two rings or
bands of different diameters one secured to each of the opposite sides of the
protecting covering of the pneumatic tube or air chamber the smaller being put
into position obliquely to the larger one so that when the said tube or chamber is
inflated a strain is exerted in opposite directions on the rings or bands and the
covering is retained or pressed firmly in the groove or recess in the felloe which
may be wedge shaped or rectangular or of other suitable figure in cross section.
One of the said rings or bands is inextensible or practically so and is situated in
the inner part of the groove or recess in the felloe and the other ring or band is
of larger diameter and of a substance such as will enable it to resist the strains
of compression to which it is submitted and it is situated nearer to the periphery
or outer diameter of the felloe which is formed with a lateral channel or recess in
its inward side for the reception of the last named ring or band. To enable this
ring or band to be situated at either side and also for the sake of symmetry there
may be a lateral channel or internal side recess on each side of the groove in the
felloe or such lateral channel or internal side recess may be at one side only.
The former plan will be most suitable for bicycles and the single wheel of a
tricycle and the latter plan will be more suitable for wheels for velocipedes or
carriages which have wheels side by side.
Dated this 9th day of February 1895.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with the Attachment of Pneumatic
Tyres to Wheels.
I, JAMES YATE JOHNSON, of 47, Lincoln's Inn Fields, in the County of London,
Gentleman, do hereby declare the nature of this invention (which has been
communicated to me from abroad by La Société des Pneumatiques Français of
Paris, in the Republic of France) and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement :-
This invention relates to pneumatic tyred wheels wherein the tyre is secured in
a recess or groove in the periphery of the felloe by means of two rings or bands
of different diameters one secured to each of the opposite sides of the protecting

page_text: covering of the pneumatic tube or air chamber the smaller being put into position
obliquely to the larger one so that when the said tube or chamber is inflated a
strain is exerted in opposite directions on the rings or bands and the covering is
retained or pressed firmly in the groove or recess in the felloe which may be
wedge shaped or rectangular or of other suitable figure in cross section. One of
the said rings or bands is inextensible or practically so and is situated in the inner
part of the groove or recess in the felloe and the other ring or band is of larger
diameter and of a substance such as will enable it to resist the strains of com-
pression to which it is submitted and it is situated nearer to the periphery or outer
diameter of the felloe which is formed with a lateral channel or recess in its
inward side for the reception of the last named ring or band. To enable this ring
or band to be situated at either side and also for the sake of symmetry there may
be a lateral channel or internal side recess on each side of the groove in the
felloe or such lateral channel or internal side recess may be at one side only. The
former plan will be most suitable for bicycles and the single wheel of a tricycle
and the latter plan will be more suitable for wheels for velocipedes or carriages
which have wheels side by side.
The accompanying drawing illustrates in cross section means employed according
to this invention for attaching the pneumatic tyre to the felloe of the wheel. J is
the recessed or grooved felloe of the wheel with rims j and the lateral channels
or recesses ¹. C is the air chamber and E the external covering thereof and
A and a are the two rings attached to each of the opposite sides of the protective
covering E. To attach the tyre to the felloe the ring A is first passed obliquely
into the felloe so that it fits into the lateral channel the ring a is then passed
into the felloe over the ring A encasing the pneumatic tyre which is then inflated.
A strain is exerted in opposite directions on the rings or bands A. a and the sides of
the external covering E are retained and pressed firmly in the groove or recess in
the felloe.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. For attaching pneumatic tyres to the felloes of wheels the combination of
rings attached to each of the opposite sides of the protective covering of the tyre
with felloes formed with a lateral channel or lateral channels substantially as
described.
2. The improved means for attaching pneumatic tyres to wheels as hereinbefore
described and illustrated in the accompanying drawing.
Dated this 8th day of November 1895.
JOHNSONS & WILLCOX,
Agents.