Improvements in or relating to Pneumatic Tyres.
Year: 1892

page_text: Date of Application, 30th. Aug., 1892]
• •Complete Specification Left, 30th June, 1893-Accepted. 26th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
We GUSTAV SCHREINER of 4 Adie Road Hammersmith, Watch Maker, and
GASTON HERVIEU of 73 Cambridge Road Hammersmith both in the County, of
Middlesex, Engineer do hereby declare the nature of this invention to be as
follows:-
The object of this invention is improvements in pneumatic tyres whereby they
may be easily repaired in case of puncturing one way of carrying out this invention
is as follows:-
The tyre is composed of the ordinary air bag or chamber and on the inner part
of the hollow rim we provide a small groove or channel on each side of the rim and
a canvas band is fixed round the air chamber by means of a wire or wires tightened
by suitable means which hold the ends of the canvas in said grooves, the outer.
cover which may be a band or still better a moulded. cover is fastened on to the
outer sides of the rims by means of hooks which hook on to the spokes of the wheels
or on to pins provided for that purpose..
Dated this 30th day of August 1892.
BROWNE & Co.,.
9, Warwick Court, Gray's Inn, W.C., Agents for Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
We GUSTAV SCHREINER of 4 Adie Road, Hammersmith and GASTON HERVIEU
of 73 Cambridge Road, Hammersmith both in the County of Middlesex, 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:-
The tyre is composed of the ordinary air bag or chamber and on the inner part
of the rim which is made deep we provide a small groove or recess (by preference)
on each side of the rim in which a wire or wires hereafter referred to lodges and
is thus prevented from slipping we surround the air bag by a canvas band this is
secured to the rim by a wire or wires the ends of which are fastened together so as
to form an endless wire round the edges of the canvas band.
It is obvious that instead of wire we may use a cord made of elastic or other
suitable material. Where a wire is employed it is tightened and held in position
by the pressure of the air tube when inflated.
And in order that our said invention may be fully understood we will describe the
same with reference to the accompanying sheet of drawings in which
Fig. 1 shews a transverse section of a tyre constructed according to this invention
when fully inflated,
Fig. 2 shews also a transverse section with tyre deflated,
Fig. 3 shews a transverse section of lower half of tyre hereafter referred to.
The same letters denote the same parts in all the views.
a shews air bag, b canvas surrounding same, c wire or cord holding canvas in
position, d grooves or recesses in which wire rests, e shew hooks for hooking outer
covering f. on to spokes g. of wheel.
In order to remove the canvas band b. the inner tube is first deflated so as to
allow the wire to get at the lowest portion h. of the rim thus allowing the opposite

page_text: part of the wire c. to pass over the rim i. When an elastic cord is used instead of
wire c. no recess is necessary as the tension of this cord would cause it to go to the
lowest portion or nearly so of the rim i and the pressure of the inflated tube would
hold it in position. Where we employ a wire we solution the outer band f. on to
the canvas or hold the said band in position by hooking it on to the spokes g. we
might also act in a similar way, where we employ a cord and in this case the
canvas . would act as a flap to protect the inner tube from chafing or getting
squeezed between the rim and outer band f. to get access to the air tube a
we deflate so as not to press upon the cord or wire so that it could easily be passed
over the edge of rim i.
At Fig. 3. the wires or cords c are shewn close together on account of the shape
of rim i.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
(1) In pneumatic tyres the wires for holding the canvas substantially as set
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicants.