Improvements in or appertaining to Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 30th Mar., 1893
Complete Specification Left, 30th Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Pneumatic Tyres.
I, WILLIAM JAMES of 166 Borough Road, Birkenhead, in the County of
Chester, Cycle Manufacturer, do hereby declare the nature of this invention to be
as follows:
This invention has for its object an arrangement whereby a pneumatic tyre
can be at once removed from the wheel in case of puncture, examined carefully,
the puncture repaired and the tyre replaced; or an old tyre replaced by a new
one with very much less trouble than at present.
In carrying my invention into effect, I form the rim of the wheel with a channel,
grip or -shaped flange, one on each side of the rim, and adapted to hold onto
these channels, grips or flanges I make two other hooked flanges, or detachable
rims, or rings. The canvas of the tyre is folded completely over these hooked
flanges, rims or rings which are perforated with numerous perforations and the
canvas is then cemented or sewn to them in such manner as to enable them to
hook into or engage the two channels aforesaid in the rim. These flanges and
channels can be either inside or outside the tyre, but in the arrangement which I
at present prefer they are outside.
The mode of action is as follows:-
The canvas of the tyre is fastened onto the hooked flanges or rings and they
are then sprung or hooked into the channels with the canvas stretched over them.
The tube is then inflated and the inflation causes the flanges to be pressed firmly
into the channels and prevents them coming out, while the tyre is inflated with
air. The wheel rim is so made that the tyre and rim combined are approximately
cylindrical.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Pneumatic Tyres.
1, WILLIAM JAMES of 166 Borough Road, Birkenhead in the County of
Chester, Cycle Manufacturer do hereby declare the nature of this invention aud
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention has for its object an arrangement whereby a pneumatic tyre
can be at once removed from the wheel in case of puncture, examined carefully,
the puncture repaired and the tyre replaced; or an old tyre replaced by a new
one with very much less trouble than at present.
The invention is best described by aid of the accompanying drawings, in
which―
Figure 1 is a transverse section of a tyre complete :
Figure 2, enlarged view of clip, edging of canvas cover and internal strip and
Figures 3 and 4, two views of corrugated strip.
In these :-
A, is the rim of the wheel having a channel with a grip or bend over B on each

page_text: side CC are detachable rims, forming, with the edging of the canvas, a hooked
flange on each side hooking into grips B B. These detachable rims C are
preferably corrugated to form a spring filling for grips B, and they are perforated,
as shown, for the canvas folded over them to be sewn to them. D is the canvas.
Its edging is cemented and sewn round grips C C. It is obvious that the grips B
can be inside the canvas and bent the reverse way, but I prefer the arrangement
shown.
The mode of action is as follows.
The canvas D of the tyre is fastened on to the hooked flanges or rings C, and
they are then sprung or hooked into the channels or grips B with the canvas
stretched over them. The tube is then inflated, and the inflation causes the flanges
to be pressed firmly into the channels and prevents them coming out, while the tyre
is inflated with air. The wheel rim is so made that the tyre and rim combined
are approximately cylindrical.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improvements in or appertaining to pneumatic tyres which consists in
forming the rim channelled or hooked on each side, folding and fastening the tyre
on each side to a smaller rim, and hooking these rims into the hooks of the tyre
substantially as described.
2. The arrangement of rim of tyre and appurtenances substantially as described,
whether the canvas of the tyre fold over the rim channels or the two interlock without
folding over, substantially as described.
Dated this 00th
1004
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, Nottingham, and London,
Patent Agents.