Improved Means for Repairing Punctures in Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 29th Nov., 1897-Accepted, 19th Feb., 1898
COMPLETE SPECIFICATION.
Improved Means for Repairing Punctures in Pneumatic Tyres.
I, SIDNEY HECTOR CLUXTON, of 1709 South Geddes Street, City of Syracuse,
State of New York, United States of America, Machinist, 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:--
My invention relates to cycles, and pneumatic tires therefor, and particularly to
means, devices and appliances for repairing or closing and sealing punctures therein.
My object is to produce a novel means for closing, sealing, and repairing
punctures in pneumatic tires, comprising a repair plug composed of a Hexible
hollow head mounted upon a tubular shank or stem, and provided in its face,
adjacent to the base of said stem, with perforations whereby the sealing cement can
be applied to said face and to the interior face of the tire, through said stem and
head and perforations. This plug is elastic except as to the stem, but this is also
expansible laterally. The head is elastic so that by longitudinal pressure against
its central portion it can be elongated and thereby reduced in size laterally, so as to
be substantially of the size of the tool used with the thickness of the material added,
whereby it can be readily inserted through a small opening, and when the head
is thus inserted and the tool is retracted slightly, said head will re-expand into
its normal shape.
Then suitable cement is suitably forced through said stem into said head and
through its perforations onto its outer face around said stem, and onto the inner
wall of the tire, and then said tool can be drawn out and the head of the plug forced
by the pressure in the tube or otherwise, into close contact with the tire, and the
puncture is closed, and the projection of the plug is then cut off.
It is constructed as follows, reference being had to the accompanying drawings
in which-
Fig. 1, shows a cross section of a tire, and a plug partly elongated prior to
insertion.
Fig. 2, is a like view showing the plug inserted and the tool partly retracted.
Fig. 3, is a like view showing the plug inserted, cemented, and the tool removed.
Fig. 4, is a side elevation of a plug.
Fig. 5, is a top plan thereof, showing perforations adjacent to the base of the stem.
A represents any ordinary pueumatic tire, the construction of which is
immaterial to this invention.
At 2 a puncture is shown, possibly enlarged to better illustrate the principle
involved by or in my invention, to receive the plug 3.
This comprises a tubular shank or stem 4, a hollow-head 5 usually provided with
an apex 6, and with perforations 7 opening into the chamber of said head, and
arranged in any suitable manner adjacent to the base of said stem.
The apex 6 is created by adding stock at that point, and this protects the head
against perforation by the tool 8 and also permits more ready entrance of the plug
into the puncture.
This tool may be a rod, or the tubular nozzle of any suitable injector 9.
It is inserted through the stem, the head having been lubricated by cement, or

page_text: otherwise, if deemed necessary and the apex of the plug applied to the puncture.
Then the pressure upon said tool will elongate and stretch said head so that it will
substantially lie against the sides of the tool, for more ready, or easier insertion.
When inserted the partial retraction of the tool will permit said head to resume
its normal form, transverse to said stem.
Then the injection of cement into said head, will cause it to flow through said
perforations onto the face adjacent to the base of said stem.
If the faces are then in contact, as in Fig. 3, said cement will thereby be applied
to both of them, and the tool can be removed.
This permits the tire to resume its normal condition, and close the chamber in
the head, the pressure within the tire will then force the said head tightly against
the tire, force a modicum of cement into the neck of the stem, and the puncture
is closed, cemented and sealed. After this the projecting end of the stem can
be cut off.
The cement applied to lubricate the plug will coat the walls of the puncture
and cement them to said stem.
The cement is thus applied through the stem and head of the plug, directly to
the faces to be secured together, the neck of the stem closed and cemented, the
walls of the chamber in the head are cemented together, and the walls of the
puncture are cemented to the stem.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A puncture-closing plug comprising a tubular stem and a hollow head pro-
vided with perforations adjacent to said stem.
2. A puncture-closing plug comprising a tubular stem and a hollow and longitu-
dinally elastic head provided with perforations adjacent said stem.
3. A puncture-closing plug comprising a tubular ste. und a hollow perforated
and longitudinally elastic head provided with an apex.
4. The combination, with a tire, of a puncture-closing plu comprising a tubular
and laterally expansible and compressible stem, and a hollow and perforated and
longitudinally elastic head provided with an apex.
5. A puncture-closing plug comprising a tubular stem and a transverse head
hollow, perforated and elastic in the direction of the bore of the stem.
Dated the 29th day of November 1897.
D. YOUNG & Co..
11 and 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.