An Improvement in Pneumatic Tyres.
Year: 1896

page_text: An Improvement in Pneumatic Tyres.
We CHARLES WILHELM BERNSON and GEORGE COLLINS SAVAGE of No. 510
Columbus Avenue New York City in the County and State of New York United
States of America Manufacturers do hereby declare the nature of this invention to
be as follows:-
Our invention consists of an improvement in protective liners for preventing
punctures of the pneumatic tubes, and it is also made a component part of the
pneumatic tube for re-enforcing its tensile strength and to prevent it from twisting
in the outer tube.
We take a strip of leather of suitable width to cover the breadth of the tube exposed
to puncture, and long enough to surround the said tube when distended and form a
scarfed lap joint at the ends, or the ends may meet in a butt joint as preferred, and
dress off the flesh side to uniform thickness lengthwise, with taper edges, then heat
the leather strips und treat the dressed or shaved side with hot tar by applying with
a brush as much as the pores will take up and then mold the strips to fit the untarred
side to the inner tube and cement it thereto, and make it a component part thereof,
comprising a puncture proof rim intermediate of the treads of the two tubes, and a
stiffener to facilitate inserting the air tube in the outer tube, also a strengthener to
prevent tearing it when pulling it out of the outer tube, and also a device to prevent
twisting the air tube when inserting it in the outer tube. The tar renders the leather
effectually resistant to tacks and other puncturing objects, such as are so destructible
of the ordinary rubber tyres.
We are aware that raw hide and dried fish skin have been used between the outer
and inner tube for protection against punctures, and we do not claim such protectors
broadly. Our protector is equally as effective against punctures, and has a material
advantage of the connection of the protector to the inner tube independently of the
outer tube as above stated.
An Improvement in Pneumatic Tyres.
We CHARLES WILHELM BERNSON and GEORGE COLLINS SAVAGE of No. 510
Columbus Avenue New York City in the County and State of New York United
5 States of America Manufacturers do hereby declare the nature of this invention and
D 973

page_text: in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Our invention consists of an improvement in protective liners for preventing
punctures of the pneumatic tubes of pneumatic tyres, whereby it is made a component
part of the pneumatic tube for reenforcing its strength and to prevent it from twisting
in the outer tube, as hereinafter described, reference being made to the accompanying
drawings in which :-
Fig. 1, is a transverse sectional elevation of a portion of a pneumatic tire on
line x-x Fig. 2.
Fig. 2, is a longitudinal section of a portion of the tire...
Fig. 3, is a perspective view of a short section of the liner and the inner tube.
A represents the exterior tube of the common form of pneumatic tires, b the inner
tube for holding the air, and a the protective liner of our invention for preventing
puncture of the air tube b.
We take a strip a, of leather of suitable width to cover the breadth of the tube b
exposed to puncture, and long enough to surround the said tube when distended and
form a scarfed lap joint at the ends, or the ends may meet in a butt joint as preferred,
and dress off the flesh side to uniform thickness lengthwise, with taper edges, then
heat the leather strip and treat the dressed or shaved side with hot tar by applying
with a brush as much as the pores will take up and then mold the strip to fit the
untarred side to the inner tube and cement it thereto and make it a component part
thereof comprising a puncture proof rim intermediate of the treads of the two tubes,
and a stiffener to facilitate inserting the air tube in the outer tube, also a strengthener
to prevent tearing it when pulling it out of the outer tube, and also a device to
prevent twisting the air tube when inserting it in the outer tube. The tar renders
the leather effectually resistant to tacks and other puncturing objects, such as are so
destructible of the ordinary rubber tires.
We are aware that raw hide and dried fish skin have been used between the outer
and inner tube for protection against punctures, and we do not claim such protectors
broadly. Our protector is equally as effective against punctures, and has a material
advantage in flexibility, besides the advantages of the connection of the protector to
the inner tube independently of the outer tube as above stated.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what we
claim is
1. The combination with the inner and outer tubes, of a pneumatic tire, of an
interposed leather puncture preventing and strength reenforcing strip for the
pneumatic tube, said strip corresponding in width to the part exposed to puncture
and being saturated with tar on its porous side, and on the other side cemented to
the tread portion of the pneumatic tube covered by it substantially as described.
Dated the 17th day of September 1897.
For the Applicants,
PHILIP M. JUSTICE,
London, Chartered Patent Agent.