An Improved Puncture-proof and Explosion-preventing Chamber or Covering for Pneumatic Tyres.
Year: 1898

page_text: Date of Application, 19th Dec., 1898-Accepted, 17th June, 1899
An Improved Puncture-proof and Explosion-preventing Chamber
or Covering for Pneumatic Tyres.
I, CHARLES GLEISES, of 31, Boulevard Desaix, Nantes, Loire Inferieur, France,
Inventor, 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:
. _
The object of the present invention is a puncture proof and explosion preventing
chamber or covering for the pneumatic tyres of the wheels of velocipedes and
other vehicles.
The drawing annexed shows, by way of example, one mode of carrying out
the invention.
On this drawing;
Fig. 1 is an elevation of a tyre manufactured according to the invention.
Fig. 2 is an inside view of the chamber or covering the wall of which has
been displayed.
This chamber or covering, the purpose of which is to render pneumatic tyres
puncture proof and also non-explosive, is made of a fabric cut on the slant or
bias and which is of a size corresponding to the wheel to be covered. It forms
a perfect shield or envelope having its edges provided with eyelets by means
of which it can be laced over the air-tube.
The covering is distended by means of the usual inflatable india rubber tube,
the extremities of which are closed and into which air is pumped in the usual
manner through a valve. This tube is, on its tread or external surface, pro-
tected by a cover-strip 2 (Fig. 2) of hydrophilic wadding, which has been coated
with india rubber or agglutinated by an appropriate chemical process. Said
strip is inserted between bands 1 and 3, made of moleskin of suitable thickness
and dimensions according to the diameter of the tube and covering with which
it is to be used and the weight of the vehicle which it has to support.
The chamber or covering is made waterproof along its running surface. It
can be covered on its external surface with an india rubber band which allows
of it running directly upon the ground.
The cover-strip 2 may be made of nitro-cellulose rendered non-inflammable,
and the tissues of which may be artificial silk made according to the Chardonnet
process.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I consider novel and desire to claim is:-
A puncture proof and non-explosive chamber or covering for pneumatic tyres
of cycles and other vehicles characterized by a band of fabric, cut on the bias,
which forms a perfect shield or envelope whose inner circumference constitutes
the two edges of the band, these edges being provided with eyelets in order
that they may be laced up and tightened as desired; the pneumatic tube placed

page_text: within the chamber or covering being separated from the latter by a strip made
of hydrophilic wadding coated with rubber or agglutinated by a suitable chemical
process and which is inserted between two bands of moleskin; the chamber or
covering being also rendered waterproof along its running surface, substantially
as herein before set forth.
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.