Improvements in or relating to Repairing Pneumatic Tyres and other India-rubber Goods.
Year: 1894

page_text: Date of Application, 8th Jan., 1894
Complete Specification Left, 8th Oct., 1894-Accepted, 10th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to Repairing Pneumatic Tyres and
other India-rubber Goods.
We, THE PALMER TYRE LIMITED of 15 Martineau Street, Birmingham, in
the County of Warwick Manufacturers and JOHN HENRY PRICE, Manager of
the said Company and of the same address do hereby declare the nature of this
invention to be as follows:-
This invention relates to the repairing of punctures cuts and the like in india-
rubber goods of various descriptions particularly pneumatic tyres for cycles.
In what is known as single tube tyres some difficulty exists in repairing a cut or
puncture and various means have been hitherto adopted for this purpose. One
form which in many respects gives excellent results consists in taking a piece of
rubber cord, threading it through a suitable bodkin, forcing it into the cut,
releasing and withdrawing the bodkin when the plug will be more or less securely
held in the cut and with solution will make a fairly tight joint. However if the
plug be cut off upon the outside close to the surface it is apt to work or be pushed
through to the inside of the tyre which will then leak. These drawbacks are
obviated in the following manner, the cord hitherto used has been a round cord,
but for pneumatic tyres owing to the shape of the tyre we find that an oval cord
is preferable and we therefore prefer to make our cord oval, although it may if
desired be round. We also provide it at intervals with collars or flanges oval
or round and repair the tyre in the following manner. The end of the cord is
threaded in the bodkin solutioned and forced in the cut or puncture in the
ordinary manner only the first collar or flange of the cord is brought close up to
the outside surface of the tyre; the bodkin is then released from the cord by
pushing it further into the tyre and withdrawn and the flange solutioned firmly
down on to the tyre and the rest of the cord cut off close on to the flange.
The flange would of course prevent the plug from working inwards even if it
were not solutioned down, but it is preferable to solution it to keep out dirt,
wet etc.
+
The cord may if desired be provided with the flanges in pairs the space
between the two flanges being equal to the thickness of the tyre to be repaired.
The operation of repairing will be conducted as before, but the first flange of
the tyre will be forced through the opening in the tyre so that one flange is on
the inside and the other upon the outside of the tyre, solution being applied if
required.
Dated this 8th day of January 1894
W. P. THOMPSON & BOULT,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Repairing Pneumatic Tyres and
other India-rubber Goods.
We, THE PALMER TYRE LIMITED of 15 Martineau Street, Birmingham, in
the County of Warwick, Manufacturers, and JOHN HENRY PRICE, Manager of
the said Company, and of the same address, 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 the repairing of punctures cuts and the like in
india-rubber goods of various descriptions particularly pneumatic tyres for cycles.
In what is known as single tube tyres some difficulty exists in repairing a cut or
puncture and various means have been hitherto adopted for this purpose. One
form which in many respects gives excellent results consists in taking a piece
of rubber cord, threading it through a suitable bodkin, forcing it into the cut,
releasing and withdrawing the bodkin when the plug will be more
or less
securely held in the cut and with solution will make a fairly tight joint.
However if the plug be cut off upon the outside close to the surface it is apt
to work or be pushed through to the inside of the tyre which will then leak.
These drawbacks are obviated in the following manner, the cord hitherto used
has been a round cord, but for pneumatic tyres owing to the shape of the tyre
we find that an oval cord is preferable and we therefore prefer to make our
cord oval, although it may if desired be round. We also provide it at intervals
with collars or flanges oval or round and repair the tyre in the following
manner. The end of the cord is threaded in the bodkin solutioned and forced
in the cut or puncture in the ordinary manner until the first collar or flange
of the cord is brought close up to the outside surface of the tyre; the bodkin is
then released from the cord by pushing it further into the tyre and withdrawn
and the flange solutioned firmly down on to the tyre and the rest of the cord
cut off close on to the flange. The flange would of course prevent the plug
from working inwards even it it were not solutioned down, but it is preferable to
solution it to keep out dirt, wet, etc.
The cord may if desired be provided with the flanges in pairs the space between
the two flanges being equal to the thickness of the tyre to be repaired. The
operation of repairing will be conducted as before, but the first flange of the tyre
will be forced through the opening in the tyre so that one flange is on the inside
and the other upon the outside of the tyre, solution being applied if required.
In the accompanying drawings:
Figure 1 shows a rubber cord with the single collars or flanges, and
Figure 2 a similar cord with the flanges arranged in pairs.
Like letters are used in both figures.
A is the rubber cord and B the flanges arranged at suitable intervals leaving
sufficient cord between each flange for the requirements of the bodkin; in Figure 1
single flanges are shown at intervals while in Figure 2 the flanges are arranged
in pairs with a sufficient space C between each to allow for the thickness of the
tyre or other article which is to be repaired. In using these cords the exposed
end of the cord is threaded through the bodkin for which purpose it may if
necessary be cut with a knife or otherwise tapered-or the piece between each
pair of flanges may be moulded in a tapered form when the cord is made-and the
cord and bodkin after the former has been solutioned are forced into the puncture
until the flange is drawn close against the surface of the tyre; then the bodkin is
pushed further in so as to draw its eye off the cord and the bodkin is then
withdrawn and the repair completed by solutioning the flange down upon the tyre
and cutting off the rest of the cord close on the outside of the flange.

page_text: In the case of Figure 2 the some process is adopted but the first flange of the
pair is forced through the puncture so that one flange is upon the inside and the
other upon the outside of the tyre the bodkin being withdrawn and the rest of
the cord cut off as before.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A flanged cord for repairing rubber goods substantially as described and
illustrated in Figure 1 of the accompanying drawings.
2. A flanged cord for repairing rubber goods substantially as described and
illustrated in Figure 2 of the accompanying drawings.
3. The combination with a cord such as A of flanges such as B arranged at
intervals along it the length of the cord between two flanges being sufficient to
allow of the proper use of the bodkin.
4. The combination with a cord such as A of flanges such as B arranged in
pairs at intervals along the cord with a space C between them suitable to the
thickness of the article to be repaired.
Dated this 1st day of October 1894.
For THE PALMER TYRE LIMITED,
T. W. WILKINSON, Secretary.
J. H. PRICE,
Manager.
For THE PALMER TYRE LIMITED,
T. W. WILKINSON, Secretary.
J. H. PRICE,
Manager.