Improvements in and relating to Pneumatic Tyres.
Year: 1896

page_text: Date of Application, 23rd May, 1896
Complete Specification Left, 23rd Mar., 1897-Accepted, 22nd May, 1897
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pneumatic Tyres.
I, RICHARD RUSSELL GUBBINS, of 95 Pelton Road, East Greenwich,
London, S.E., Tyre Manufacturer, do hereby declare the nature of this invention
to be as follows:
My invention relates to an improved method of fastening the detachable
outer cover of a pneumatic tyre to its rim.
In carrying out my invention I place a row of loops, along each edge of the
outer cover parallel to the same. The parts of the loops which appear on the
outside of the cover, are caught under looks with which the rim is furnished
as hereinafter described.
This is accomplished by turning over the edges of the rim towards the inside
and milling or punching pieces out of them at regular intervals apart. The
remaining portions form hooks which engage with the exposed parts of the rows
of stitches on the cover edges above described, or with other devices for the same
purpose of securing the cover in a similar way.
Dated this 16th day of May 1896.
RICHD. R. GUBBINS,
Applicant.
Improvements in and relating to Pneumatic Tyres.
I, RICHARD RUSSELL GUBBINS, of 95 Pelton Road, East Greenwich,
London, S.E., Tyre Manufacturer, 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 :-
My invention relates to improvements in securing pneumatic tyres to the rims
of wheels of bicycles and other vehicles in such a way that the same may be
easily removed for repairing the inner tube and at the same time secures them
in such a manner that they do not come away from the rim in the event of
the air tube being deflated by puncture or other causes.
My invention will be readily understood by reference to the accompanying
drawing in which-
Fig. 1, is a section through a tyre and rim.
Fig. 2, is a perspective view of part of a rim showing the method of
construction I prefer.
Fig. 3, is a section taken along the edge of the cover showing the method of
securing the wire loops.
Similar letters indicate similar parts throughout the drawings.
In carrying out my invention I place a row of loops c, along each edge of the
outer cover A parallel to the same. The parts of the loops which appear on

page_text: the outside, are caught under hooks b with which the inside of the rim B is
furnished.
The rim Fig. 2, has flanges turned over and nearly closed as shown at a,
Fig. 1, and these are milled or punched out into hooks b, b, Fig. 2. The
milling or punching may be done to the flanged strip in the straight before it
is bent in the circular form for the rim. These hooks b, b, it will be noted are
made nearly close in order to retain the loops c, c, Figs. 1, and 3, securely by
pull or tension only, and not by the lateral or outward pressure of the air in
the inflated air chamber.
The loops c, c, Fig. 3, are made of thin wire bent as shown in the drawing, and
secured and caused to project boldly above the surface of the cover A, by a
strip of canvas d solutioned on to them after they are set in place.
I prefer to leave the edges of the cover e, e, long enough to lay one over
the other to protect the air tube from the spoke ends in the rim, but I attach
no importance to the said edges for any other purpose.
The wire loops c, c, being disconnected from each other leave the edges of
the cover limber and extensible so that it can be stretched over the rim without
difficulty. Most of the wire loops c, c, engage themselves automatically in the
hooks b, b, and those that do not do so can be easily put on before the tyre
is blown hard. To remove the cover it will be found necessary to first push
the loops c downwards so as to disengage them from the hooks b, and they can
then be brought over the rim B.
I am aware that there are devices for securing tyre covers on rims of wheels
which depend for their action upon the lateral and outward pressure of the air
in the inflated tyre and I do not claim anything of this nature. I am also aware
that various kinds of hooks have been used for fastening detachable tyre covers
to the flanged edges of wheel rims and 1 do not claim any of these.
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. In pneumatic tyre rims, the method of cutting the overturned flange of a
wheel rim into hooks b, b, either before or after the rim is bent, substantially as
described and according to the accompanying drawing.
2. In pneumatic tyres, the method of securing a tyre cover to a rim by
means of the wire loops c, c, or their equivalents in conjunction with the nearly
closed hooks b, b, as and for the purpose set forth.
3. In pneumatic tyres and rims of wheels, the combination of the various
parts as above described in this specification for the purpose specified.
Dated this 23rd day of March 1897
J. P. BAYLY,
18 Fulham Place, London, W., Agent for the Applicant.