Improvements in Pneumatic Tyres.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c Act, 1883) as required
by the decision of the Comptroller General, of the 13th day of July 1898.
Improvements in Pneumatic Tyres.
We, CHARLES ADAMS TOWN, of Commerce Square, Nottingham, in the County
of Nottingham, Designer, JOSEPH WHITE, of 90, Mansfield Road, Nottingham
aforesaid, Lace Manager, and THOMAS WARD Cox, of 17, Avondale Road, Spark-
hill, near the City of Birmingham, Agent, do hereby declare the nature of this
invention to be as follows:-
This invention relates to pneumatic tyres for the wheels of cycles and other
common road vehicles, both of the tubeless and double-tube types, and consists
in the one part, in simple and efficient means of securing together the
meeting or overlapping edges of the endless band or strip of fabric or canvas
and rubber constituting the outer cover, in the case of a double-tube tyre, or
the body of the tyre, in the case of a tubeless tyre; and in another part, to
means for securing such outer covers or tyres to rims or wheel circumferences.
In carrying out one form of the first part of our invention, the tyre consists
of an endless broad band of fabric, canvas and rubber, leather or other suitable
material, of a breadth a little greater than the circumference of the tyre to be
made, with the middle part thicker than the edges which both taper down to a
knife edge. On the topside of the one edge and the underside of the other edge
are hook-sectioned fangs, aprons or returned extensions, which, in cross section,
present a figure resembling the barbed point of a fish-hook, so that on the endless
flat band being turned or rolled up into a tubular figure, the barbed section
flaps, aprons or extensions engage or infibulate with one another, hence the con-
nection of the opposite edges of the endless band or strip constituting the body
of the tyre. On internal pressure forcing the opposed surfaces into intimate
contact, a perfectly air-tight joint is produced.
This said joint part lies within the trough of the rim, and the overlapping
and interlocking flaps, which are preferably annularly continuous throughout
the whole circumference of the tyre, are made of rubber, or are faced with rubber,
or are stiffened or strengthened by strips of canvas, vulcanite, celluloid, metal,
cork or any other suitable substance embedded in the rubber.
The hooked edges are preferably made integral with the body of the tyre,
but to this we do not limit ourselves as the inner edges (in contradistinction to
the free edges) of the flaps or overlay strips, aprons or equivalents may be
formed separately and attached by cementation, eyeletting, rivetting, buttoning,
lacing, or by other means.

page_text: As an addition to the aforesaid method of connection, a supplementary endless
strip is solutioned at one edge to the outermost edge of the tyre proper and
arranged to overlay the joint, whilst the outer and free edge is secured to the
side walls of the said tyre by eyelets at the edges of the same taking over buttons
on the tyre or by equivalent means. This supplementary strip may also be
provided with inserted stiffening strips of vulcanite or other material.
In one form of the second part of our invention, we secure a tyre to a rim
to opposite endless ribs, feet or flanges engaging in overhanging edges or channels
in the rim, and each having an endless inserted steel or other metal band em-
bedded into the rubber of it, which band is provided with fangs or teeth which
are passed through the walls of the tyre and are clinched on the inside thereof,
after which a rubber lining is solutioned within the said inside to cover up
and secure the clenched fangs.
As another form of this part of our invention, the outersides of the endless
band constituting the body, adjacent to the edges are provided with a series of
pockets or eyelets, with which a series of turned in hooks on the edges
of the rim engage on the tyre being fitted to the rim and then inflated.
The application of the various parts of our invention as herein described to
double tube tyres differs therefrom only by the inclusion of an inner air tube
within the endless strip, which now constitutes the outer tube or cover of the
tyre.
Dated this 26th day of Auril 1897
CHARLES ADAMS TOWN.
JOSEPH WHITE.
THOMAS WARD COX.
By Henry Skerrett,
Agent for Applicants.
Improvements in Pneumatic Tyres.
We, CHARLES ADAMS TOWN, of Commerce Square, Nottingham, in the County
of Nottingham, Designer, JOSEPH WHITE, of 90, Mansfield Road, Nottingham
aforesaid, Lace Manager, and THOMAS WARD Cox, of 17, Avondale Road, Spark-
hill, near the City of Birmingham, Agent, 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 pneumatic tyres for the wheels of cycles and other
common road vehicles, both of the tubeless and double-tube types, and consists
in a simple and efficient means of securing together and making an air tight
joint between the meeting or overlapping edges of the endless band or strip
of fabric or canvas and rubber constituting the outer cover, in the case of a
double-tube tyre, or the body of the tyre, in the case of a tubeless tyre.
Figure 1 of the accompanying drawing represents an elevation of a single tube
pneumatic tyre constructed according to one form of our invention.
Figure 2 represents upon an enlarged scale, a cross section of the said tyre,
and Figure 3 is a similar section to Figure 2, but with the infibulating or inter-
locking edges of the endless band constituting the body of the tyre disconnected
from one another.
Figure 4 is a plan of the top side of the said endless or continuous band of

page_text: fabric, Figure 5 is a section thereof and Figure 6 a plan of the under or inner
side.
The same letters of reference indicate corresponding parts in the several
figures of the drawing.
In carrying out this form of our invention, the tyre consists of an endless
broad band a, shown separately in Figures 4, 5 and 6 of fabric, canvas and
rubber, leather or other suitable material, of a breadth a little greater than the
actual circumference of the tyre to be made and with the middle part a¹, thicker
than the edges a², a³, which may both taper down to a knife edge. On the
topside of the right hand edge a³, and the underside of the other edge a³, are
hook-sectioned fangs, aprons or returned extensions a³, ab, which, in cross section,
present a figure resembling the barbed point of a fish-hook, so that after the end-
less flat band has been turned or rolled up into a tubular figure, as represented
in the sectional views in Figures 2 and 3, the said barb sectioned flaps, aprons
or extensions a¹, a³, are engaged, infibulated or interlocked with one another,
hence the connection of the opposite edges of the endless band or strip con-
stituting the body of the tyre. On internal air pressure set up by the inflation of
the tyre forcing the opposed surfaces into intimate contact, a perfectly air-tight
joint is produced.
This said joint lies within the trough 61, of the rim b, and the overlapping and
interlocking flaps, which are annularly continuous throughout the whole circum-
ference of the tyre, may either be made of rubber, or be faced with rubber,
or be stiffened or strengthened by strips of canvas, vulcanite, celluloid, metal,
cork or any other suitable substance embedded within or applied to the rubber.
The hooked edges are preferably made integral with the body of the tyre,
but to this we do not limit ourselves as the inner edges (in contradistinction
to the free edges) of the flaps or overlay strips, aprons or equivalents may be
formed separately and attached by cementation, eyeletting, rivetting, buttoning,
lacing or by other means.
In the said Figures 2 and 3, the tyre is secured to the rim by endless ribs,
feet or flanges af, on the outside of the band engaging in overhanging edges
or channels 62, in the rim, which said ribs may, if necessary, have an endless
inserted steel or other metal band embedded into the rubber of them, which
band may be provided with fangs or teeth which are passed through the walls
of the tyre and are clenched on the inside thereof, after which a rubber lining is
solutioned within the said inside to cover up and secure the clenched fangs.
Figure 7 represents a section of another tyre constructed according to our
invention, and which differs from that shown in Figures 1 to 6, only in the
shape of the annular feet or ribs a, on the outside walls thereof and the shape
of the overhanging edges 63, of the rim b, with which the said feet engage, the
construction of the air tight interlocking joint between the overlapping parts
of the body of the tyre being the same as, and marked with the same letters
of reference as the preceding arrangement.
Figure 8 represents another modified means of securing the tyre a, to the rim b,
the edges b, of which are hooked or turned over outwardly and with which
reverse hook-sectioned ribs a6, running annularly around the outside of the tyre
are made to engage for securing the said tyre in position on the rim.
The application of our invention as hereindescribed to double tube tyres differs
therefrom only by the inclusion of an inner air tube within the endless strip,
which now constitutes the outer tube or cover of the tyre.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we wish it to be
understood that we are aware of Letters Patent No. 8136 of 1896 granted to
J. T. Trench and that we claim nothing described and claimed in the Specifica-
tion of said Letters Patent, but we declare that what we claim is:
In pneumatic tyres. the combination with infibulating or interlocking hook

page_text: section flaps or extensions for forming an air-tight joint between overlapping
edges of the body or outer cover of a tyre, of the means hereindescribed for
securing the tyres to their rims, substantially as set forth in Figures 2, 3, 7
and 8.
Dated this 26th dox of Tonor 1000
CHARLES ADAMS TOWN.
JOSEPH WHITE.
THOMAS WARD COX.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicants.