Improvements in Pneumatic Tyres.
Year: 1894

page_text: Date of Application, 30th Jan., 1894
Complete Specification Left, 28th Nov., 1894-Accepted, 19th Jan.. 1395
Improvements in Pneumatic Tyres.
I WILLIAM RICHARD BARRETT, of 44 Howe Avenue, Passaic, in the County
of Passaic, and State of New Jersey, United States of America, Inventor, do
hereby declare the nature of this invention to be as follows:-
--
My invention relates to pneumatic tyres more especially for the wheels of
bicycles. The object of my invention is to facilitate the application of the tyre to
the wheel and its removal therefrom either to enable the air tube in case of puncture
to be repaired or to be replaced by another, and to this end my invention consists
of a fastening for uniting the edges of the cover, in such a manner that the cover
may not only be quickly fastened and unfastened, but when applied to the wheel
will hold the air tube securely in place without liability of being accidentally
released.
The cover is of tubular form split longitudinally on its inner side as usual and
its meeting edges are provided with spiral wire coils which are adapted to interlock,
and which, to enable them to the more readily interlock, are of opposite pitch.
These spiral coils are held together by a flexible wire rod, which extends
longitudinally through them, the wire rod being run through the projecting end
portions of the coil, after they have been interlocked, so as to prevent the two coils
from pulling apart.
If a single wire is used, the wire is provided at one end with a head which is held
in a laterally-extending socket or yoke projecting from a washer which encircles
the valve; and in the yoke between the head and the outer end of the yoke is a
spiral spring which encircles the rod and acts as a cushion and also serves to hold
the wire taut. The other end of the rod is pointed, so that it may be run readily
through the coils, and it is also screw threaded to enable it to be screwed into the
outer end of a yoke, which is formed on one side of another washer which also
encircles the valve.
When the coils of the cover are brought together so as to interlock at the portion
of the cover near the valve, the rod may be thrust longitudinally through the coils
and it will act as a wedge to move the coils together, thus uniting the edges of the
cover and forming it into an endless tube. The free end of the wire rod may be
screwed into the yoke, and the rod is thus made fast and the edges of the cover held
together.
Instead, however, of using a single rod, two wire rods may be used, each adapted
to extend half way around the tire, and to provide for this construction, two
similar washers are used, which are adapted to encircle the valve and lie outside
the rim, each washer having on one side a socket adapted to receive and hold
the head of a rod, which is pointed at its free end, and is adapted to extend half
around the tire. The action of these rods in uniting and fastening the coils of the
cover is similar to that of the rod described above.
Dated this 30th day of January 1894.
W. K. BAKKELL,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.

page_text: improvements in rneumaniс тугез.
I, WILLIAM RICHARD BARRETT of Passaic, in the County of Passaic, and State
of New Jersey, United States of America, Gentleman, 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 improvements in pneumatic tires such as are used on
vehicle wheels, and particularly on the wheels of bicycles.
The object of my invention is to produce a very cheap and simple tire, which
may be conveniently fastened to a wheel, and which comprises the usual inner
inflatable tube and an outer tube or cover, this outer tube being for the protection
of the inner tube and being constructed in such a way that it may be instantly
opened so as to permit the removal of the inner tube and which may be instantly
closed when necessary.
The object of this arrangement is to enable the inner
tube to be easily removed and a new one substituted, in case the inner tube is
punctured.
A further object of my invention is to construct the fastening device which unites
the edges of the outer tube or cover, in such a manner that the cover may not only
be quickly fastened and unfastened, but will be very durable and not likely to be
accidentally loosened.
To these ends my invention consists of certain features of construction and
combinations of parts, which will be hereinafter described and claimed.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar figures indicate corresponding parts in all the views.
Figure 1, is a top view of a portion of the outer tube or cover of the tire,
broken away, and shows a position and construction, of the double helical wire, of
the cover closing device.
Fig. 2, is a broken, vertical, sectional view of the portion of the tire shown in
Fig. 1, and illustrates in addition, a broken felloe; the location and sectional view
of a valve stem; and the manner the arrangement of a pressure strip to which the
said valve stem is attached.
Fig. 3, is a cross sectional view of the tire, felloe, closing device and pressure
strip; and:-
Fig. 4, is an inverted detached view of the manner of connection between a valve
stem, or valve tube casing, and a pressure strip.
The tire, consisting of an outer tube, a cover A, and an inner tube C is shown in
position upon an ordinary felloe B.
The said cover A is split longitudinally along its inner diameter side (preferably
for its entire length, except for a couple of inches or more near the valve tube (¹);
and each edge of the said split is provided with a helical wire, securely fastened to
the edges thus formed, of the said cover A.
Adjacent to the valve encasing tube D, and on opposite sides thereof, at the
beginning of the split in the said cover A, is arranged, preferably, a hollow plug or
head f, which holds together the ends of, and at which terminates together the
aforesaid helical wires F, F. These wires are efficiently fastened, preferably by
means of ladder tapes, securely to the said split edges of the said cover; and
the inclination of the coils of one wire is opposite to the inclination of the coils
of the other wire.
A pointed spring wire F2 (preferably of steel) is provided with any suitable head,
such, for instance as is shown by f2, and is adapted to pass through the hole in the
head, and thence inside of the two ceils F, to draw and fasten together the
edges of the cover A. The wire F2 may consist of a single piece, and may extend

page_text: all around the tire; or it may consist of two pieces adapted each to extend about
half way around, and meet, or cross within the coils.
It is readily seen that, since, the wire or wires F' can be instantly withdrawn,
from the coils F, F', of the cover A, the inner tube can be gotten at instantly, for
repair, etc.
An improved form of the invention is to locate the coils or helicals, F, F', at one
side of the centre of the inner diameter portion of the said cover, as shown by
the dotted coils, at g.
In this form of construction the portion of the tire cover,
from a to a is to be cemented permanently to the felloe B; and to get at the inner
tube, the tire is first deflated, and the tire at the side of the said coils at
pushed over until the heads or buttons 12 are exposed, when the wires F2 can be
withdrawn readily, and the inner tube uncovered. The portion of the cover A not
being cemented at a¹ in this latter construction.
is
As a means to prevent the tire from turning or twisting, when not cemented to
the felloe, a strip of thin wood, E, or even metal, may be located between the inner
tube C and the cover A, as shown in Figs. 2 & 3.
This strip, near one end, is provided with a hole through which is adapted to
pass the valve tube c¹ of the inner tube C. This arrangement, when the tire is
inflated prevents the strip from creeping during riding. A hole e may also be
formed in each end of the strip E and the said ends may be tied, or otherwise
fastened together, as shown at e¹.
The preferred manner of arranging the strip E, is to pass through the valve tube
hole in the said strip, a valve tube casing, or protector tube D, which is secured
to, or formed with, a plate C2, whose edges are turned over and clamped against the
said strip E. This valve tube casing D is passed out through an opening in the
cover A and in the felloe B; and it may be threaded, as at d³, and provided with a
clamp nut d², whose function is to clamp the strip E, tire cover A, and the felloe B,
together.
In the construction of the tire, the portions a, a, connected with the coils F, F¹,
are better made as thick as the diameter of the said coils, in order that the said tire
shall fit closely to the felloe B.
Any suitable valve may be attached to the valve tube c' of the inner tube C³,
though no valve is set forth in the accompanying drawing.
The action of the strip E, in clamping the cover A to the felloe B, when the
tire is inflated will be readily understood. The said strip will of course not be
employed when the coils F, F1, are shifted to g and the cover A cemented at a, a,
as previously set forth.
It will also be understood without argument, that the end of the rod F2, when
passed into and through the coils F, F, will, owing to its taper, draw together the
said coils as it passes through them, and thus close and lock the said cover A around
the inner tube C.
Having now 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. In a pneumatic tire, the outer tube or cover split longitudinally, and means,
as the interlocking coils and fastening rods, for holding the meeting edges of the
cover, substantially as described.
2. In a pneumatic tire, the outer tube or cover split longitudinally on its inner
side, and means, as the interlocking coils and the fastening rods for holding the
meeting edges of the cover together, substantially as set forth.
3. In a pueumatic tire, the outer tube or cover split on its inner side, the inter-
locking coils at the meeting edges of the cover, and the fastening rod extending
longitudinally through the coils, substantially as set forth.
4. A pneumatic tire comprising an inner inflatable tube of the usual kind, an
outer cover for the tube, the cover being split longitudinally on its inner side,
interlocking coils fastened to the meeting edges of the cover, and a flexible fastening
rod adapted to extend through the coils, substantially as set forth.

page_text: 5. The combination, with the inner inflatable tube having a valve, the outer tube
or cover split longitudinally on its inner side, and the interlocking coils at the
meeting edges of the cover, of a flexible fastening rod, and means for preventing the
slipping of said rod, substantially as set forth.
6. The combination in a pneumatic tire having an inner tube and a cover split
longitudinally, and having coils secured along the edges of said cover, and a
fastening rod adapted to pass through and lock the said coils, of a hollow
terminal secured to the said coils, and to receive the said rod, substantially as
set forth.
7. In a pneumatic tire having an inner and an outer tube, an independent strip
located between the said inner, and the said outer, tube, and extending longitudinally
around and between the same, substantially as set forth.
8. In a pneumatic tire having an inner and an outer tube, and an independent
strip located between the said inner and the said outer tube, and extending
longitudinally around and between the same, a tube secured to, and extending
laterally from, said strip, and extending through the said outer tube, substantially
as set forth.
9. In a pneumatic tire having an ioner and an outer tube, and an independent
strip located between the said inner and the said outer tube, and extending
longitudinally around and between the same, a tube secured to, and extending
laterally from, said strip, the said tube being secured to a plate, which latter is
connected to the said strip by means of being doubled upon the latter, the said
tube passing through the said cover, substantially as set forth.
10. The combination in a pneumatic tire having an inner tube and a strip
interposed between the said inner tube and the cover, of a tube connected with, and
extending laterally from said strip, and having threads formed thereon, and a
clamp nut adapted to engage therewith, substantially as set forth.
Dated this 28th day of November 1894.
F. W. BARKER,
Applicant's Agent.