Year: 1896

page_text: Date of Application, 13th Feb., 1896
Complete Specification Left, 2nd Nov., 1896-Accepted, 24th Dec., 1896
I, CHARLES GRAFTON PAGE, of 185 Dearborn Street, Chicago, Illinois, United
States of America, Counsellor-at-Law, do hereby declare the nature of this invention
to be as follows:-
This invention relates to pneumatic tires of the kind or class in which the tires
are provided with internal longitudinally arranged patching webs or plies for closing
punctures.
Prominent objects of the invention are to provide a simple and economical
construction and arrangement; to render the patching web capable of being easily
manipulated for the purpose of closing punctures; to provide for closing double
punctures or punctures in close proximity to one another; to simplify the
manufacture of the article; and to generally provide a desirable and efficient
construction.
The pneumatic tire may be of any desired or suitable construction, and may
contain an inner inflatable air-tube, in which case it may be closed or open
along the base, in accordance with the style or kind of tire manufactured. The
pneumatic tire can also be of the "one-tube" or "hose-pipe" type, in which case
the inner lining of the tire takes the place of an independent inner air-tube.
The repairing device of this invention comprises a base strip provided with a
couple of lapping and longitudinally arranged patching plies or webs, which are
flexibly held along one longitudinal edge portion, and normally free along the
other longitudinal edge portion. This repairing device normally lies in a
flattened condition within the pneumatic, tire, the base strip being at the base side
of the tire.
By such arrangement, the patching plies or webs will be normally away from the
tread portion of the tire, and hence will be out of the way of puncture. When a
puncture has been made through the tire tread, cement can be introduced through
the puncture and the tread of the deflated tire can be pressed down so as to cement
together the punctured portion of the tire and a portion of the upper repairing web
or ply, a portion of which latter will be picked up when the tire resumes its normal
condition, and is inflated, it being observed that an equilibrium of air-pressure will
be established at opposite sides of such of the raised portion of the web, as is not
directly cemented to the tire-tread, and hence, that inflation of the tire will not
force the cemented portion of the web from the punctured portion of the tire-
tread.
If now a second puncture should occur at a point within the immediate vicinity
of the first puncture, the puncturing object may, and frequently will, pass through
the picked up portion of the web, closing said first puncture, and in such case, the
lower web can in like manner be employed for closing such second puncture. If
the second puncture is made through that portion of the previously picked up web
which has been cemented to the inner wall of the air chamber, whether such air-
chamber be within a single, double, or multiple tube tire, one injection of cement
through this second puncture will generally be sufficient, since in such case, the
second web will be picked up and cemented to a portion of the web already
cemented to the inner wall of the air-chamber. On the other hand, should the

page_text: second puncture occur through a raised portion of the previously picked up web,
which has not been cemented to the inner wall of the air chamber, the rider can,
after injecting a suitable quantity of cement through said puncture in the tire,
depress the tire tread until the punctured portion of said picked up web becomes
secured to the punctured portion of the tire, and then inject cement through both
the puncture in the tire and the corresponding puncture in the picked up web, and
then again depress the tread so as to cause a portion of the second web to be
cemented to the punctured portion of the first web, which latter is at such time
secured to the inner wall of the air-chamber.
It will also be understood that, when the second web has been thus picked up, at
any point along its length, an equilibrium of air-pressure will exist at opposite
sides of so much of its raised portion as is not directly cemented to the first web.
The normally lapping webs or plies extend longitudinally within the tire, and
while the webs or entire repairing lengths could comprise two or more lengths,
the arrangement admits of the entire device being made in one length, thereby
involving economy in manufacture and application. The repairing device can
comprise a base strip and lapping webs or plies of rubber, and all vulcanized as
one piece in a normally flattened condition, whereby said base strip can lie against
and be held upon the inner wall of the tire at the base side thereof, while the webs or
plies will normally lie together and rest upon the base strip.
The base strip could, however, be made of fabric or other like material, and the
webs or plies of rubber or like impermeable, flexible material, could be secured to
the edge portions of the base strip.
This arrangement, while possibly more expensive to manufacture, permits the
base strip to be drawn taut, without stretching the webs or plies, and enables said
base strip to closely hug the inner wall of the tire at the base side, thereby
dispensing with any possible need for cementing the base strip to the inner wall of
the tire, as a guard against lateral displacement during use.
Where the base strip is of rubber, it may or may not be secured to the inner wall
of the tire, as may be preferred; but if so secured, it can be cemented along its
longitudinal middle to an inner tube, and the tube can then be turned so as to bring
the repair device within the tube, and when thus secured, either in an inner tube
or within the chamber of a hose-pipe tire, the general plan will involve a longitu-
dinally arranged web secured along its middle and having free longitudinal portions
folded over one another so as to provide the normally lapping repairing webs
or plies. This arrangement permits the plies to be more readily picked up,
since a considerable part of each edge portion of the base strip is free and capable
of yielding.
If desired, the base strip may be omitted, and with such arrangement the webs
or plies can be formed of a single piece of rubber folded along its longitudinal
middle portion and vulcanized in a flat condition. The two webs or plies could be
separately made and then secured together, but the simpler and more approved way
will be to make them of one piece. With this arrangement, the plies can be
successively used as heretofore set forth. This last mentioned arrangement is
regarded as a matter of further and important improvement.
Dated this 13th day of February 1006
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements in and relating to Pneumatic Tyres.
I, CHARLES GRAFTON PAGE, of 185 Dearbora Street, Chicago, Illinois, United
States of America, Counsellor-at-Law, 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 invention relates to pneumatic tires of the class in which the air-chamber
of the tire is provided internally with a patching ply normally away from the
tread side of the tire so as to escape puncture, and arranged so that in the event of
puncture it can be picked up and cemented to the punctured wall of the air-chamber
so as to patch over the puncture.
Prominent objects of the invention are to provide simple and efficient means for
patching over double punctures or punctures successively occurring close together;
and to lessen the labor and expense heretofore incident to fitting up pneumatic
tires with patching plies.
To the attainment of the foregoing and other useful ends, the invention consists
in matters hereinafter set forth.
In the accompanying drawings,-
Figure 1 is a section taken transversely through a portion of a pneumatic tire
provided with patching plies in accordance with the principle of the invention and
seated upon a wheel rim.
Figure 2 shows a piece of patching fabric adapted for use in a pneumatic
tire.
Figure 3 illustrates in cross-section, an inner tube distended by a mandrel, and
the patching piece of Figure 2 secured to the air-tube.
Figure 4 is a section taken longitudinally through a portion of a pneumatic tire,
with the improvement applied and shows one of the patching plies picked up.
Figure 5 is a section through the tire on line - in Fig. 4.
Figure 6 is a like view showing both patching plies picked up.
Figure 7 is a section on a reduced scale, taken centrally and longitudinally
through the tire.
Figure 8 shows a patching piece having two plies formed by a single fold.
Figure 9 is a section taken transversely through a tire with the patching piece of
Fig. 8 applied.
The pneumatic tyre A can be of any desired or suitable construction, and it may
contain an inner air-tube B, in which case it can be closed or open along its seating
portion in accordance with the style or kind of tire manufactured. The pneumatic
tire can also be of the "one tube" or "hose pipe" type, in which case, the inner
rubber lining of the tire takes the place of an independent air-tube.
The puncture repairing device comprises patching plies or web-portions C and D,
arranged within the air-chamber of the tire, which said air-chamber may be either
the space within an inner removable tube, or the space within a "hose-pipe
other hollow pneumatic tyre.
"
or
The patching plies normally lie adjacent to the seating portion of the tyre, so as
to be out of the way of puncture and each of said plies has a longitudinal
free edge portion, whereby each ply forms a flap which can be picked up for
purposes of repair.
The patching plies in the first seven figures, extend from opposite sides
of the tire and preferably extend, the one over the other, so as to provide more
perfect patching means than will be provided by terminating their longitudinal
free edge portions at or near a line over the middle of the seating portion of the
tire.

page_text: The latter arrangement can be used with some degree of success, but it is
far more desirable to so extend the plies in reverse directions from opposite sides
of the air-chamber, that one ply will normally rest upon and cover the next adjacent
lower ply.
As a simple and preferred arrangement, the two plies are formed by the
longitudinal marginal portions of a single piece of thin rubber or other impervious
fabric suitable for patching punctures, by which arrangement, a strip of patching
fabric can be made of a width to permit its longitudinal marginal portions to lap and
lie in juxtaposition to one another near the seating side of the tire, the remaining
portion of the fabric in such case forming a connection between the two patching
plies. This arrangement is also desirable, since a suitable portion or portions of
the patching fabric between its longitudinal edge portions which form the patching
plies, can be conveniently cemented or similarly fastened to the inner wall of the air-
chamber, and thereby secure the patching plies against accidental side shift, and
also hold them against any tendency to creep along the air-chamber while the tire
is in use.
The strip or piece which provides the patching plies can also be so vulcanized
when made of rubber, as to cause the plies to lightly resist movement toward the
tread side of the tire, it being observed that such light resistance will not
materially oppose the picking up of the plies during the operating of repairing
punctures.
When a puncture is made through the tread portion of the tyre, as at E, Figs. 4
and 5, a small quantity of cement can be injected into the air-chamber through
such puncture, by means of a cement injector, and the tread portion of the deflated
tire at any point adjacent to the puncture can then be pressed inwardly and to an
extent to force it against the upper ply C, which will thereupon adhere to the
portion of the inner wall of the air-chamber which is adjacent to the puncture, and
thereby close the latter. Upon again inflating the tire, a portion of the ply C
will be picked up by reason of its adherence to the punctured wall of the air-
chamber, as in Fig. 5, and since the ply C has a free edge portion, or is in the
nature of a flap, an equilibrium of air-pressure will exist at opposite sides of all of
the raised portion of the ply, excepting the part thereof which has been cemented
to the punctured portion of the tire, and in this way, such cemented portion of the
ply will not be forced away from the punctured portion of the tire, and will be
relieved from strain tending to thus force it away. With this arrangement, portions
of the upper ply C can be effectively used for repairing punctures at intervals along
the tire, as illustrated in Fig. 7. In case a puncture should be made through a
portion of the ply C previously picked up and cemented to a punctured portion of
the tire, the second ply D can be employed as a means for closing such second
puncture, in the manner herein before described in connection with the upper ply C,
the only difference being that a portion of the ply D will be cemented to the
punctured portion of ply C, as illustrated in Fig. 6, and also in Fig. 7, in which
latter, portions of the upper ply only are shown picked up and used as patched at
certain points, while at other points, portions of both of the plies are shown as
employed for patching.
The piece or strip forming the plies can be made in one or more lengths, one
being the simplest, and if desired, the plies could be made of rubber and the
intervening portion F of cloth or other fabric cemented and vulcanized to the
rubber plies, thereby saving in rubber, although as a preferred arrangement
and matter of further improvement, the two plies and intervening portion can
be made out of one piece of suitably thin rubber or analogous impervious fabric
suitable for patching.
In Figs. 8 and 9 are shown a strip of fabric formed with a single longitudinal
fold so as to provide a couple of lapping plies G and H, which arrangement it is
also desired to cover, although it is regarded as inferior to the arrangement herein-
before described.
As a simple way of attaching the piece shown in Fig. 2 to the inner side of an

page_text: inner air-tube, the latter can be turned inside out and placed upon a mandrel I, and
the portion F of the piece can be cemented to the air-tube as in Fig. 3, after which,
the air-tube can be again turned inside out so as to bring the patching means
within it.
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 pneumatic tire having its air-chamber provided with longitudinally
extending, and relatively superposed patching plies, having free longitudinal
edges, and normally in juxtaposition to one another near the seating side of
the tire.
2. A pneumatic tire having its air-chamber provided with longitudinally extending
and relatively superposed patching plies, having free longitudinal edges, and
normally in juxtaposition to one another near the seating side of the tire, said plies
being formed by a single piece of fabric.
3. A pneumatic tire having its air-chamber provided internally with a piece of
fabric having free longitudinal marginal portions which extend from opposite sides
of the air-chamber so as to normally lie the one over or upon the other in position
away from the tread side of the tire.
4. A pneumatic tire having its air-chamber provided internally with a fabric
which is secured to the inner wall of the air-chamber between its longitudinal
marginal portions and which has such marginal portions free and arranged to form
patching plies and normally lie away from the tread side of the tire.
5. A pneumatic tire having its air-chamber provided internally with a fabric
having free marginal portions forming patching plies which normally lie away from
the tread side of the tire, and having its portion which is intermediate of said plies
secured to the inner wall of the air-chamber.
6. A pneumatic tyre having its air-chamber provided internally with a fabric
which is attached to the inner wall of the air-chamber between its longitudinal
marginal portions, and which has such longitudinal marginal portions free and
extended to lap one another, and form patching plies.
7. A pneumatic tire having its air-chamber provided internally with a rubber
patching fabric which is secured to the inner wall of the air-chamber between its
longitudinal marginal portions, and which has such marginal portions free and
extending from opposite sides of the tire so as to lie the one over the other and
form patching plies normally near the seating side of the tire.
Deted this 2nd day of November 1896
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.