Improvements in Pneumatic Tyres.
Year: 1894

page_text: Date of Application, 5th Sept., 1894
Complete Specification Left, 5th June, 1895-Accepted, 6th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres.
I, EDWARD HENRY SEDDON of Warwick House, Ashton-on-Mersey, in the
County of Chester, Managing Director, do hereby declare the nature of this
invention to be as follows:-
This invention relates to pneumatic or air-inflated elastic wheel tyres and consists
in improvements in the tyre or the jacket thereof having for their object the ready
attachment or detachment of the tyre to or from the felloe.
The improvements consist in the constructive arrangement of the edges of the
jacket or tread portion in tyres having arch-shaped jackets, or the equivalent parts
formed on tyres of the single tube class.
In carrying my invention into effect I make the main part of the tyre in the
well-known way of indiarubber and canvas. In tyres having arch-section jackets
I extend the canvas lining thereof at each side and turn the edges up outwardly
forming cupped or hooked edges. I then place a preferably flat band of metal into
each of the pockets so formed and fold the edges over the same so as to enclose
it, the metal band being curved so that the broad section thereof lies vertically or
in the plane of the wheel. I form a butt or lap joint in the band and use any
suitable mechanical attachment to fasten the ends of each band together.
Preferably however I form a stud on one end of the band and a hole in the other
end and I cause the one end to overlap the other end so that the stud shall pass
through the hole. A hole may also be formed in the felloe so that the stud may
also pass through the same and thus prevent any possibility of the tyre creeping in
the felloe.
In tyres of the single tube class I form equivalent edges or flaps of analogous
form to the edges of the tyre jacket hereinbefore described. Instead of proceeding
as described I may fold the edges over to form loops and turn these outwards and
insert the metal band into them.
The form and arrangement of the band permits the ready enlargement of the edge
of the jacket or tyre without the use of a sliding wire, and ensures a constant even
edge. By the sides of the jacket or tyre springing from the bottom or inner edge
of the band the break in the continuity of the jacket or tyre is kept at the bottom
of the felloe and thereby prevents undue bulging of the material at the joint ;
the band also may be more readily handled and the fastening undone more
easily.
Dated thi AL 1

page_text: I, EDWARD HENRY SEDDON of Warwick House, Ashton-on-Mersey in the
County of Chester 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 or air-inflated elastic wheel tyres and
consists in improvements in the construction of the tyre having for the object
the simple and ready attachment and detachment of the tyre to and from the rim or
felloe.
The improvements consist in the construction of the edges of the jacket or
tread portion in tyres having jackets of arched or horse-shoe form in section, and
in what are known as single-tube tyres of the parts, edges flaps or the equivalents
of the edges by which such tyres are secured in position in the felloes.
On the drawing appended hereunto
Fig. 1 shows a side view of a part of a tyre made according to my invention.
Fig. 2 two views of the fastening device which I employ.
Fig. 3 a section of a tyre with arch or horse-shoe shaped cover and separate air
tube, and
Fig. 4 a section of a single-tube tyre with my improvements applied thereto.
According to my invention I make the main part of the tyre in the well known
way of indiarubber and canvas. In tyres having arch or horse-shoe shaped
jackets as shewn by Fig. 3, I extend the canvas lining a of the jacket e at each
side and turn the edges up outwardly forming pockets. I then place a flat-band or
locking-ring of metal into each of the pockets so formed and fold the edges a¹
over the same so as to enclose it, the canvas coming into contact with the band or
locking-ring being preferably coated with india rubber cement before the band is
enclosed therein, so that the band cannot shift in the cover. The metal band is
curved so that the broad side thereof lies vertically or approximately in the plane
of the wheel against the sides of the rim d when put on. Each band is divided
and formed with a butt or lap joint and the ends of the band connected by any
suitable mechanical attachment. Preferably however I attach a hook or stud c
Figs. 1 and 2 to one end of the band and make a corresponding hole or slot in the
other end and make one end so as to overlap the other, so that the stud or hook
shall pass through the hole. A hole may also be formed in the felloe so that the
hook or stud, the nose of which in this case would face away from the tyre, may
also pass through the same and thus prevent any possibility of the tyre creeping in
the felloe.
The canvas edge enveloping the band is of course divided at the joint of the
band, and the canvas part a² on the inside next to the edge being somewhat
stretchable the edge of the jacket can be readily enlarged when the band is
unfastened, without the use of a sliding wire as generally used, and the wear of
the canvas edge bearing upon the rim by the sliding wire is thus prevented and a
constant even edge is ensured. By the sides a² of the jacket springing from the
bottom or inner edge of the band the break in the continuity of the jacket is kept
at the bottom of the felloe and thereby prevents undue bulging of the material at
the joint; the band may also be more readily handled and the fastening more easily
undone than is the case with the wires or bands hitherto used.
In tyres of the single tube class I form equivalent edges or flaps a' a² enclosing
metal bands b of analogous form to the edges of the tyre jacket e hereinbefore
described, the canvas insertion of the tyre between the inner and outer layers of
the india-rubber preferably being made use of the form the edges and the outer
india rubber covering g being stopped at the top edges of the bands b.

page_text: Instead of proceeding as hereinbefore described in forming the edges and
enclosing the flat bands or locking rings therein, I may first fold over the edges
to form tubes or loops and turn these outwards and then insert the metal bands into
them.
Having now particularly 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 :-
First. The construction or formation of the edges of arch or horse-shoe shaped
tyre jackets as and for the purpose hereinbefore described and illustrated by the
drawings.
Second. The formation of flaps or edges on single tube tyres as and for the
purpose hereinbefore described and illustrated by the drawings.
Third. The construction and arrangement of the metal locking-ring substantially
as and for the purpose hereinbefore described and illustrated with reference to
Figures 1 and 2 of the drawings.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.