Improvements in or relating to eumatic Tyres.
Year: 1896

page_text: Improvements in or relating to
eumatic
Tyres.
A communication from FRANCIS HUGH SNOW, of Victoria Buildings, Grenfell
Street, Adelaide, South Australia, Engineer.
1, ALFRED JULIUS BOULT of 111 Hatton Garden, in the County of
Middlesex, Chartered Patent Agent, do hereby declare the nature of this invention
to be as follows:-
This invention relates to an improved construction of pneumatic and other
similar tyres or covers for the wheels of bicycles velocipedes or other wheeled.
vehicles."
At present such tyres are constructed usually of indiarubber or guttapercha
with a woven fabric backing. Such tyres are liable to puncture and possess
other well known disadvantages. This invention consists essentially in the
construction of such tyres of what is known commercially as chrome tanned
leather that is to say leather tanned by the action of oxide of chromium. For
the purpose of the invention, this leather is taken after it has been tanned but
before it has received the final dressing or dyeing which is required to fit it for
any commercial purposes such as for a boot leather.
In the formation of the tyres a strip or band of chrome tanned leather so
prepared is taken and the tyre formed wholly out of it. The tyre is also provided
with a woven fabric backing, in order to increase its strength and to prevent the
leather from being unevenly stretched.
In the construction of the tyre the strip or band of leather is cut to the required.
length and width. It is then skived to reduce the substance in the non-wearing
part and in order to give greater elasticity the ends are scarfed and the several
joining edges united with rubber solution. The tyre is then complete and can be
fixed in the rim of the bicycle and inflated in the ordinary way.
The tyre so constructed of chrome tanned leather is also provided with an
internal fabric lining similar to that of the "Dunlop" tyres.
It is proposed also to use the chrome tanned leather as wearing strips by
cementing or otherwise attaching it to the wearing surface of any ordinary tyre.
The wear and tear of the tyre is thereby diminished and its life considerably
prolonged.
It is found that tyres constructed according to this invention are not influenced
by the effect of the sun or by exposure to the weather. They are not liable to
deteriorate from contact with mud or water. They are difficult to puncture and
for this reason their life is much longer than that of any tyre at present in use;
they are practically non-slipping and give therefore greater safety.
Though described more particularly with respect to pneumatic and other similar
tyres my correspondent wishes it to be distinctly understood that the invention
is equally applicable to solid tyres for vehicles.
Dated this 10th & 1909
BOULT & WADE,
Agents for the Applicant.

page_text: Improvements in or relating to Pneumatic or other Tyres.
A communication from FRANCIS HUGH SNOW, of Victoria Buildings, Grenfell
Street, Adelaide, South Australia, Engineer.
I, ALFRED JULIUS BOULT of 111 Hatton Garden, in the County of
Middlesex, Chartered Patent Agent 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 an improved construction of pneumatic and other
similar tyres for the wheels of bicycles, velocipedes or other wheeled vehicles.
At present such tyres being constructed usually of indiarubber or guttapercha
with a woven fabric backing are liable to puncture and have other well known
disadvantages.
The invention consists essentially in the construction of such tyres wholly or
in part, of leather tanned by the action of oxide of chromium, i.e. such leather is
substituted for the rubber at present in use. For the purpose of the invention,
this leather is taken for use after it has been tanned but before it has received
the final dressing and dyeing which it requires for any commercial purposes such
as for a boot leather.
In the formation of the tyre a strip or band of chrome tanned leather is taken
and the tyre formed wholly out of it so that the tyre itself forms the air
tube. The tyre may also if desired be provided with a woven fabric backing,
in order to increase its strength and to prevent the leather from being unevenly
stretched.
In the construction of a tyre where the tyre itself forms the air tube, the strip
or band of leather is cut to the required length and width. It is then skived or
thinned to reduce the substance in the non-wearing part and in order to give greater
elasticity, the ends are scarfed or thinned and the several joining edges united with
rubber solution. The tyre is then complete and can be fixed in the rim of the
bic cle and inflated in the ordinary way.
The improved tyre may also be constructed in a similar way to the well known
"Dunlop tyre by providing an inner air tube of rubber or other suitable material
and fixing thereto an outer or wearing tyre of chrome tanned leather.
It is also proposed to use the chrome tanned leather as a longitudinal wearing
strip, cementing or otherwise attaching it to the wearing surface of any ordinary
tyre. The wear and tear of the tyre is thereby diminished and its life considerably
prolonged.
Through the action of the oxide of chromium by which the leather is tanned,
it becomes much tougher than the ordinary leather. It has a great wearing capacity,
but retains its flexibility. It does not become hard, but retains its elasticity, and
in this is not affected or deteriorated by water, either whilst it is wet or after it
has dried. It is not injuriously affected by water or the most powerful sun heat or
atmospheric variation of weather.
Tyres or covers so constructed are difficult to puncture and for this reason their
life is much longer than that of any tyre at present in use; they are practically
non-slipping and give therefore greater safety.
Though described more particularly with respect to pneumatic and other similar
tyres it is to be distinctly understood that this invention is equally applicable to
solid elastic or cushion tyres for vehicles, in the form of wearing strips, or covers
as above described.

page_text: Having now particularly described and ascertained the nature of this said inven-
tion as communicated to me by my foreign correspondent, and in what manner the
sume is to be performed, I declare that what I claim is :-
1. The construction of pneumatic and other similar tyres from chrome tanned.
leather either alone or in combination with a woven fabric backing substantially
as specified.
2. In the construction of pneumatic and other similar tyres, the combination
with an inner air tube of rubber or other suitable material of an outer tyre of chrome
tanned leather substantially as specified.
3. In the construction of pneumatic and other similar tyres the application to
the wearing surface of the tyre of a longitudinal band or strip of chrome tanned.
leather substantially as specified.
Dated this 24th day of September 1896.
BOULT & WADE,
Agents for the Applicant..