Year: 1895

page_text: I PROSPER MARIE CLAUDE NIVET of 21 Boulevard Poissonniere Paris in the
Republic of France do hereby declare the nature of this invention to be as follows:-
This invention has for its object to enable pneumatic tyres to be fitted to wheels
of any type or construction without forming the said wheels with any stop rib or
projection or any groove for the reception or retention of the tyre or otherwise
altering the wheel itself.
The wheel may be for instance an ordinary wooden wheel with an ordinary iron
tyre.
Rings or hoops are fitted to the edges of the pneumatic tyre-casing one being
incapable of any expansion, while the other, should be expansible, so that the one
can be passed over the other to connect the edges of the said casing which encloses
the air chamber.
According to my present invention, a strip of retractile canvas, (which may
consist of two layers with the threads diagonally disposed) is pasted to one side of
the casing. In the two edges of the said strip there are embedded, or secured in
any suitable manner two expansible rings or hoops which may consist of twine,
cord or the like for example.
To fix a pneumatic tyre in position, the said strip of canvas is passed on the
felloe, or rim, together with the uninflated tyre adhering to such canvas, it being
passed on to one side of the rim first, which is possible owing to the fact that the
pieces of canvas are loose (the air chamber not being inflated) and that the cords
at the edges of the aforesaid strip of canvas are expansible. When, therefore, the
air chamber is inflated, the canvas of the said strip is firmly pressed against the
rim of the wheel, while at the same time the canvas of the casing, and the air
chamber which it contains, are secured against any displacement.
The improved tyre may be readily removed, by allowing the air to escape from
the air chamber; and when it has been so removed, the wheel will be like an
ordinary wheel.
Dated this 21st do- of Doomben 1905

page_text: Improvements in or connected with Pneumatic Tyres for Wheels.
I, PROSPER MARIE CLAUDE NIVET of 21 Boulevard Poissonniere Paris in
the Republic of France 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 :-
This invention relates to tyre arrangements such as are described in the
Specifications of my Applications for Letters Patent Nos. 23343 and 23344 of
1895 and my present invention has for its object to enable pneumatic tyres to be
fitted to wheels of any type or construction without forming the said wheels with
any stop, rib or projection or any groove for the retention of the tyre, or otherwise
altering the wheel itself. I will describe this invention with reference to the
transverse section shewn in the accompanying drawing.
The wheel B may be for instance an ordinary wooden wheel with a rim A. of
iron or other suitable material, C is the air chamber.
Rings or hoops D D₁ are fitted to the edges of the pneumatic tyre-casing the
ring or hoop D² being incapable of extension, whilst the other ring or hoop D
should be extensible so that the one can be passed over the other to connect the
edges of the said casing which encloses the air-chamber C. E is the tyre casing
made with layers of "retractile " canvas as described in the Specification of my
aforesaid Application No. 233439.
According to my present invention a strip E¹ of retractile canvas (which may
consist of two layers with the threads diagonally disposed) similarly to those of
the casing E is pasted or cemented to one side of the casing. In the two edges of
the said strip E there are embedded, or secured, in any suitable manner two
extensible rings, or hoops d d which may consist of twine, cord or the like, for
example.
To fix the pneumatic tyre in position the said strip of canvas E' is passed onto
the felloe or rim A together with the uninflated tyre adhering to such canvas
(which tyre should be arranged as shewn in the drawing but not inflated) it being
passed onto one side of the rim first, which is possible owing to the fact that
the pieces of canvas E El are loose owing to the air chamber not being inflated
and that the cords d d at the edges of the aforesaid strip of canvas are
extensible.
When therefore the air chamber C is inflated, the canvas of the said strip E¹
is firmly pressed against the rim of the wheel, while at the same time the canvas
of the casing E and the air chamber C which it contains, are secured against any
displacement.
The improved tyre may be readily removed by allowing the air to escape from
the air chamber C; and when the said tyre has been so removed, the wheel will be
like an ordinary wheel.
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 :-
In pneumatic tyre arrangements for the wheels of carriages and other vehicles of
the character described in my aforesaid Applications for Patents Nos. 23343
and 23344% a rim or felloe without a side rib or projection, or a groove and

page_text: pasted or cemented to one side of the casing, and passed on to the rim or felloe of
the wheel to keep the pneumatic tyre in position substantially as hereinbefore
described.
Dated this 7th day of September 1896.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.