Improvements relating to the Repair of Punctured or Injured Places in Pneumatic India Rubber Cycle Tyres, or other Tubular or Cellular Vessels of India Rubber.
Year: 1898

page_text: Date of Application, 10th Jan., 1898-Accepted, 5th Mar., 1898
COMPLETE SPECIFICATION.
Improvements relating to the Repair of Punctured or Injured Places
in Pneumatic India Rubber Cycle Tyres, or other Tubular or
Cellular Vessels of India Rubber.
WILLIAM DIESELHORST, of 33, Victoria Road, Old Charlton, Kent, Electrical
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:―
In repairing punctures of pneumatic tyres, or other tubular or cellular vessels
of india rubber, patches of vulcanized india rubber have hitherto been used, and
they are generally coated with a solution of india rubber and naphtha, to make
them adhere to the tyre, or other tubular or cellular vessel of india rubber, which
has also been cleaned (usually with sand paper) and coated with rubber solution.
There are patches of vulcanized india rubber in the market, which are prepared
with some adhesive compound, and these require no coating of solution, but have
the defect that they never get properly dry, and consequently do not make a good
repair.
To obviate the defects of the present methods I prepare patches manufactured
in the ordinary way, consisting on one side of unvulcanized india rubber, prefer-
ably pure rubber, and on the other side of vulcanized rubber; or else patches which
have been vulcanized on one side only.
To repair an injured pneumatic tyre, or other tubular or cellular vessel of india
rubber the punctured place is cleaned with benzoline, the unvulcanized rubber
side of the patch is then well wetted with benzoline, and without waiting for the
patch to get tacky, or curl up, it must be applied immediately to the punctured
place. This patch holds much more firmly than any other patches, and becomes
firm in much less time, since the benzoline evaporates more quickly than the
naphtha with which india rubber solution is usually made.
Canvas can be prepared with unvulcanized rubber in the same way, and used
for repairs to the outer tyres of cycles, by being put on with benzoline in the
manner described above.
The main object of this invention is to facilitate the repair of punctured or
injured places in pneumatic india rubber cycle tyres, or other tubular or cellular
vessels of india rubber. In the case of cyclists on the road there is nothing to
be carried besides the patches, and some benzoline, which latter can be got at any
oil shop; and there is no curling up of the patches, because no time is wasted in
waiting for the patch to become tacky.
This invention has therefore the advantages of both of the ordinary methods,
that is, of the ordinary patches, applied with india rubber solution, and of the
patches prepared with adhesive compound, but it has neither of their defects.
. 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 claim is :-
1. The use. for the purposes stated, of patches consisting of unvulcanized rubber

page_text: on one side, and vulcanized rubber on the other; or of canvas prepared with
unvulcanized rubber, and substantially as described.
2. The application of benzoline to secure firm adhesion of these patches quickly.
Dated this Seventh day of January 1898.