Improvements in Pneumatic Tyres.
Year: 1897

page_text: Improvements in Pneumatic Tyres.
I, FREDERICK RICHARD SIMMS, of Amberley House, 12, Norfolk Street, Strand, in
the County of London, Engineer, do hereby declare the nature of this invention to be
as follows:
This invention relates to improvements in pneumatic tyres and has for its object to
so construct such tyres that any puncture made therein can be more easily and
effectually repaired than is possible with pneumatic tyres as now generally made..
According to my invention, in lieu of the ordinary inner or air tube of the tyre I
provide a tube which is split around its outer periphery.
With this construction of inner tube when the outer covering of the tyre is placed
in position in the rim and inflated the free edges of my split inner tube form flaps
which are forced by the pressure of the air against the inner surface of the outer
covering thus preventing the escape of the air from the tyre.
Should the tyre be punctured it will be obvious that to repair the damage it would
only be necessary to remove the tyre and apply the solutioned strip or the like over
the puncture on the inside of the tyre and to then replace the tyre and reinflate it
when the pressure of the air will assist in maintaining the puncture closed.
Dated the 15th day of March 1897.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Pneumatic Tyres.
I, FREDERICK RICHARD SIMMS, of Amberley House, 12, Norfolk Street, Strand, in
the County of London, Engineer, 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 improvements in pneumatic tyres and has for its object
to so construct such tyres that any puncture made therein can be more easily and
effectually repaired than is possible with pneumatic tyres as now generally made.
According to my invention, in lieu of the ordinary inner or air tube of the tyre I
provide a tube which is split around its outer periphery.
In the accompanying drawing:-
-
Figures 1, 2 and 3 are sections of inner tubes for pneumatic tyres made according to
my invention.
anlit alan their outar naminheries

page_text: In Figure 1, the said tube a is shewn of the same thickness throughout, the split
edges being tapered. In Figure 2 the tube a is shewn thicker at the part opposite
the split edges and gradually tapered towards the said split edges.
In Figure 3, the tube tapers. somewhat towards the edges, which are made to
overlap one another so as to form a closed tube when in position in the tyre.
With this construction of inner tube when the outer covering of the tyre is placed
in position in the rim and the tyre is inflated the free edges of my split inner tube
form flaps which are forced by the pressure of the air against the inner surface of the
outer covering thus preventing the escape of the air from the tyre.
Should the tyre be punctured it will be obvious that to repair the damage it would
only be necessary to remove the tyre and apply a solutioned strip or the like over the
puncture on the inside of the tyre and to then replace the tyre and reinflate it when
the pressure of the air will assist in maintaining the puncture closed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the saine is to be performed, I declare that what I
claim is :-
1. In a pneumatic tyre the combination with the outer covering of an inner tube
which is split around its periphery, substantially as described.
2. In a pneumatic tyre, the combination with the outer covering of an inner tube
which is split around its periphery and the split edges of which overlap one another,
substantially as described.
3. The manufacture and use of the improved inner tubes for pneumatic tyres
herein before described and illustrated in the accompanying drawing.
Dated the 15th day of December 1897.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.