Improvements in Wheel Tyres.
Year: 1896

page_text: Date of Application, 18th Sept., 1896-Accepted, 5th Dec., 1896
Improvements in Wheel Tyres.
I JOHN HENRY STEWART of Caira 96 Bahia Brazil Consulting Engineer 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 improvements in wheel tyres and is especially applicable
to pneumatic tyres of velocipedes and other vehicles.
According to my invention I place between the inner air tube of a pneumatic
tyre and the outer indiarubber tube or cover two sheets of canework, each made
of the same material and of about the same thickness as that used in seating cane-
bottomed chairs and plaited in a similar manner to that employed in the manufacture
of plain calico.
The two sheets of canework are constructed of such a width that they form
two complete tubes, the outer one fitting the inner circumference of the outer
tube or cover of the tyre, whilst the inuer one fits the inner circumference of the
outer one, the edges or parts where they join breaking joint with or overlapping
one another for about two or three inches and their length being sufficient to
extend entirely around the tyre. Or instead of the said sheets fitting the transverse
circumference of the tyre, they may be of slightly greater width so as to be
turned up or curved inwards at their meeting edges.
The outer cane sheet is covered with a sheet of cloth fastened thereto by india-
rubber cement.
Referring to the accompanying sheet of drawings
Fig. 1 is a transverse section of a pneumatic tyre according to my invention,
Fig. 2 is a similar view of a modification and Fig. 3 is a detail.
In Fig. 1 a is the outer tube or cover and 6 the inner or air tube of ordinary
construction, e is the outer canework sheet fitting the inner circumference of the
tube a and d is the inner canework sheet fitting the inner circumference of the
sheet c.
I prefer to plait these sheets in a similar manner to that employed in
the manufacture of plain calico and substantially as shown in diagram Fig. 3.
their meeting edges 1 d 1 breaking joint with or overlapping one another for about
two or three inches. The outer sheet c is covered with a sheet of cloth e fastened
by india-rubber cement, and the whole forms a continuous tube for insertion in the
tube a.
In
Fig. 2 shows my invention applied to a tyre in which the pneumatic tube is
dispensed with, the cane sheets c and d being formed sufficiently rigid to maintain
the correct shape of the tyre whilst permitting the elastic action of the same.
this case the width of the sheets is slightly greater than the inner circumference
of the tube a, their meeting edges being turned up or covered inwards as shown
at f. After the cane sheets are made they are soaked for several days in the best
boiled linseed oil before being inserted in the outer tube a, and by their use
puncturing of the air tube will be prevented.
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 :-
1. In pneumatic tyres the use of two sheets of plaited cane-work tying the one

page_text: within the other and fitted to the inside of the outer cover substantially as
described and for the purposes specified.
2. In pneumatic tyres the cane sheet c surrounding the cane sheet d and covered
by a sheet of clothe the whole being placed between the outer cover a and the
air tube 6 substantially as described and for the purposes, specified.
3. In tyres for cycles and other vehicles, fitting within the outer cover a two
canework sheets c and d curved inwardly at their meeting edges f substantially as
described and shown in Fig. 2 of the drawings.
4. The improved tyre substantially as described and shown in the accompanying
sheet of drawings.
Dated this 17th day of September 1896.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.