Improvements in Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 13th Nov., 1893
Complete Specification Left, 13th Aug.. 1894-Accepted, 15th Sept., 1894
PROVISIONAL
SPECIFICATION.
Improvements in Pneumatic Tyres.
We.
SAMUEL TWEEDALE of Haugh Cycle Works, Oldham Road, Rochdale,
in the County of Lancaster, Cycle Manufacturer and JAMES CLEGG of Walmsley
House, Rochdale in the County of Lancaster, Commission Agent, do hereby declare
the nature of this invention to be as follows:-
Our invention relates to pneumatic tyres for the wheels of road vehicles and
more particularly to such tyres which have two essential parts viz. : an outer cover
or jacket and an inner tube or air chamber and which are secured to the felloes by
means of bands or wires.
The object of our invention is to make the attachment and detachment of the
tyre to and from the felloe simple and handy for the purpose of repairing the air
chamber when punctured.
The improvements consist in the manner of formation and attachment of the
jacket to the felloe and may be embodied in the following arrangement of the tyre
and felloe. Preferably a felloe of channel section is used, but any other suitable
design and depth of felloe may be employed. An endless or jointed air-chamber
of india rubber or the like material faced or backed with canvas or other suitable
fabric, and fitted with inflating valve, may be made and used in the well known
way. The jacket preferably consists of a length of material of arched or of
tubular section moulded, or bent to arch of tubular form, and formed by moulding
any suitable
or by bending into a circular band, the ends of which may be jointed in
way but preferably after the manner hereinafter described. The two longitudinal
edges of the jacket are furnished with unstretchable bands preferably of metal.
These pass through a turnover of the canvas backing of the jacket and at the end
of the bands are furnished suitable devices for readily connecting together the.
opposite ends of the bands, a simple and effective device being the forming of one
end of a band into a button or hook and of the opposite end into a "buttonhole.”
The ends of the jacket may be made tapered to overlap each other and forms a
scarfed joint; preferably however the canvas lining of the jacket or a separate
continuation of the same is carried beyond one end of the jacket and may be
continued far enough to encircle the felloe a second time, but is preferably continued
for only a few inches and may be pushed under the other end. In some cases we
may make the canvas lining and outer part of the cover loose for a short distance
from the end so as to form a loose overlap of the outer part over the continued
backing. This continuation is faced with rubber or otherwise made waterproof.
The edge of the section at this overlap is formed with a bead and a corresponding
bead is formed on the continuation of the backing opposite to it. The opposing
end of the jacket or band is reduced and also formed with a bead.
According to this constructive arrangement the tyre is secured to the felloe after
the air chamber has been placed in the felloe or jacket in its collapsed state by
bringing together the ends of the cover, causing the bead on one end to pass
between the beads of the opposing end of jacket and of the continuation of the
backing, and coupling up the ends of the bands on each side.
In a modification of this invention the jacket may form a continuous band, but
at one place or more than one, it may be cut partly through transversely, leaving

page_text: the tread continuous, being otherwise constructed and secured to the felloe in a
similar manner as herein before described.
Dated this 11th day of November 1893.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Pneumatic. Tyres.
We, SAMUEL TWEEDALE of Haugh Cycle Works, Oldham Road, Rochdale,
in the County of Lancaster, Cycle Manufacturer, and JAMES CLEGG, Walmsley
House, Rochdale,. in the County of Lancaster, Commission Agent, do hereby
declare the nature of this invention and in what manner the same is to he
performed to be particularly described and ascertained in and by the following,
statement:
Our invention relates to pneumatic tyres for the wheels of road vehicles, and
more particularly to such tyres as have two essential parts, viz.: an outer cover or
jacket forming the tread portion and an inner air-chamber, and are secured to the
felloe generally by means of bands or wires.
The object of our invention is to make the attachment and. detachment of the
tyre to and from the felloe simple and expeditious for the purpose of repairing
the air-chamber when punctured.
The improvements consists in the manner of forming the cover or jacket and of
attaching and detaching the same to and from the felloe.
According to our invention we use preferably a cover or jacket of arch-form in
the edges of which we place wire or other bands for securing the tyre to the felloe.
The cover we make pre'erably in the form of a ring having a transverse joint the
ends of the ring overlapping at the joint.
We employ a channelled felloe of any well known pattern preferably one having
a flat bottom to the channel as shewn in the drawings.
The air chamber may be made endless or butt-jointed and of indiarubber or
indiarubber and canvas and fitted with an inflation valve in the well-known
manner.
In order that our invention may be more readily understood we have attached
hereunto a sheet of drawings to which we will now refer.
In the said drawings
Figure 1 represents an end view of the tyre at the joint shewing the air-chamber
in section.
Figure 2 represents a longitudinal view partly in section shewing the joint in the
cover and one suitable form of fastening.
Figure 3 shews a cross-section of a tyre according to our invention but of modified
construction.
Figure 4 represents a longitudinal view of part of the same, partly in section.
In the several views A indicates the felloe, B the cover or jacket and C the air-
chamber. The wire bands are indicated by the letter D.
The jacket is preferably formed so that the parts at the joint shall overlap with
a scarfed joint so as to leave a level surface in the manner shewn in Figure 2. One
part may however overlap the other on the upper surface of the latter or in some...
cases the edges of the outer part at the joint may simply butt.
The internal part b of the cover which is overlapped by the tread portion is
preferably formed by continuing the canvas lining of the cover and coating the a
same on the outside, or on the inside as shewn, with a thin skin of india-rubber to
render it smooth and water-proof. This continuation is shewn only for a few inches.
in length.but it may in some cases be continued round the felloe so as to go
completely round the circumference. or more or less.

page_text: The wire bands are contained in pockets formed in the edges of the cover by a
turnover of the canvas backing or otherwise in the usual manner.
The ends of the wire bands may be secured together on to the felloe in any
suitable way for instance by forming one end of the wire into a buttonhole and the
other end into a button or hook. Preferably however the method of attachment
shewn in the drawings is used, in which the wires are extended beyond the ends of
the cover and lining respectively and have notched plates attached to them which
are pushed into slots of the felloe as shewn. The inner sides of the plates may be
rounded or inclined so as to draw up the wires by pressing the plates into the slots.
The wires are preferably fast in the edges of the cover.
Instead of wires cords or other bands may be used more particularly where the
lining or overlapped part of the cover extends all round the circumference.
By unfastening the wires. or bands in the overlapping part from the felloe or
bands in the under part, the tyre is at once opened out all round, so that the air-
tube is exposed and readily accessible without having to be pulled out from under
the cover, and the cover can again be readily attached.
Instead of the outer tread parts of the cover meeting and forming a scarfed or
butt joint, the canvas lining may be made loose from the outer rubber part for a
short distance from the joint, so that the other end of the cover overlapping the
continued lining may be pushed in between this and the opposite end of the rubber
part and a double overlap obtained. The overlapping ends of the rubber cover
are in this case preferably thinned down and each formed with a bead at the end
so as to interlock each other, and the extended canvas lining may be further
formed with a bead fitting into the recess of the rubber part overlapping it.
In a modification shewn by Figs. 3 and 4 the jacket B forms a continuous tyre or
band on the tread part but at one place or more than one the canvas lining is slit
through transversely at the sides of the jacket and the outer or rubber part is slit
likewise transversely at the sides, the slits being some distance apart, so that the
slit in each part is covered by a solid portion of the other part and the lining and
outer part are loose from each other at the sides in the overlapping portion.
The wires are preferably secured to the felloe in the same manner as before
described. After unfastening the wire end of the outer cover the latter can be
pulled sideways over the edge of the felloe for opening the cover, the loose part of
the outer cover and lining permitting this to be done.
Having now particularly described and ascertained the nature of our said inven-
tion and in what nature the same is to be performed, we declare that what we
claim is
1. The construction and use of a pneumatic tyre having an arch shaped cover
divided transversely with the lining or its equivalent attached to one end extending
under the other end, and secured to the felloe by means of wires or bands substantially
as hereinbefore described.
2. In a pneumatic tyre having an arch shaped cover the arrangement of a
transverse detachable overlapping joint in said cover substantially as herein before
described.
3. The modified arrangement of the jacket of a pneumatic tyre with a partial
transverse division of the same and the lining thereof substantially as herein before
described with reference to Figures 3 and 4 of the drawings.
4. A pneumatic tyre consisting of a separate air-chamber and an arch shaped
cover or jacket constructed substantially as hereinbefore described and illustrated
in the drawings with reference to Figures 1 and 2 and Figures 3 and 4 respectively.
Dated the 11th dev of & nauc 1801
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.