Improvements in or connected with Wheels for Velocipedes or other Road Carriages.
Year: 1893

page_text: Date of Application, 8th May, 1893
Complete Specification Left, 6th Mar., 1894-Accepted, 7th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with Wheels for Velocipedes or
other Road Carriages.
We, CHARLES HENRY GUEST and LOUIS BARROW, both of Tower Works,
Tower Road, Birmingham, in the County of Warwick, Cycle Manufacturers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with wheels for velocipedes
and other road carriages as hereinafter described.
According to our invention we make the rim of the wheel flat or only slightly
curved and we fix the pneumatic tyre thereon by means of endless wires or wire
rings inserted in the edge of the tyre jacket or covering and having a diameter just
sufficient to enable them to slip onto the outer periphery of the rim.
In practice we prefer to make the rim with two flanges on the outer periphery
at a short distance from the edges of the rim, the said flanges serving to hold the
tyre in a central position and to prevent the same from slipping off the rim when
the tire is deflated.
Dated the 8th day of May 1893
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
VODE IN DIECIFICATION.
Improvements in or connected with Wheels for Velocipedes or
other Road Carriages.
We, CHARLES HENRY GUEST and LOUIS BARROW, both of Tower Works,
Tower Road, Birmingham, in the County of Warwick, Cycle Manufacturers, 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 or connected with wheels for velocipedes
and other road carriages as hereinafter described.
According to our invention we make the rim of the wheel flat or only slightly
curved and we fix the pneumatic tyre thereon by means of endless wires or wire
rings inserted in the edges of the tyre jacket or covering and having a diameter
just sufficient to enable them to slip on to the outer periphery of the rim.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawing, in which :-
Figures 1 to 7 are transverse sections illustrating various arrangements of wheel
rim and tyres according to our invention, and,
Figure 8 is a sectional olevation of a portion of a wheel tyre illustrating a detail.
Similar letters of reference indicate corresponding parts in the several figures.
a is the wheel rim, b is the jacket or covering of the tyre, c, c are the wires for
attaching the same, and d is the air bag or chamber. As hereinbefore stated the
outer periphery of the rim is made flat or substantially flat and the cover is fixed
on to the rim by means of wire rings, the diameter of which is such that when they
are inserted into the edges of the jacket the said edges can just slip on to the
periphery of the rim.

page_text: In practice we prefer to make the rim with two flanges e, e on the outer periphery
at a short distance from the edges thereof, as shown in Figure 1 the said flanges
serving to hold the tyre in a central position and to prevent the same from slipping
off the rim when the tyre is deflated. Or, instead of providing the flanges e, e, the
centre of the rim may be hollowed out as shown in Figure 2 so that the air-
chamber d when inflated will press into the said hollow and so prevent the tyre
from moving laterally.
In order to provide as far as possible against any liability that the air-chamber
might have when inflated to pass between the jacket and the rim we advantageously
arrange canvas flaps ff to cover the joints between such jacket and rim. Figure 3
shews the flaps f, applied to a rim of the kind shewn in Figure 1, the said flaps
being secured at one edge to the rim a in such a manner that when the tyre is applied
the free edges or portions of the said flaps will lie between the air-chamber and the
flanges e e and jacket b. In the arrangement shewn in Figure 4 the said flaps, f
are formed in one piece with the jacket b and so arranged as to lie upon the wheel
rim when the tyre is in position. In Figure 5 flaps f,f similar to those shewn in
Figure 3 are arranged in connection with the rim and tyre shewn in Figure 2.
In some cases instead of arranging the wire rings c, c to fit on to the rim they
may be arranged to fit on to india-rubber rings g, g cemented to the rim and on
the outer periphery bevelled and flanged as shewn in Figure 6, or the said india-
rubber rings may be loose or fastened to the inflatable air-chamber to act as wedges
to prevent the air-chamber passing between the wires and rim.
In applying our invention to a single tube tyre the rings c, c are placed in the
edges of wing-flaps h, h formed in one piece with or attached to the tubular tyre as
shewn in Figure 7, the rings c, c and flaps h, h serving to attach the tyre to the
rim and to prevent the tyre from rolling from side to side.
With wheels and tyres constructed as hereinbefore described it will be obvious
that the tendency of the fixing wires or rings c, c will be to move towards each
other when inflated instead of to separate as is the case with tyres fixed by means
of wires as hitherto.
In order that the jacket shall be prevented from "creeping" upon the rim we
advantageously provide the rings c, c with one or more internal projections i as
shewn in Figure 8, the said projections being inserted into corresponding holes or
slots formed in the rim.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A wheel for velocipedes and other vehicles having the rim flat or substantially
flat and a tyre fixed thereto by means of rings placed in the edges of the said tyre
and adapted to fit on to the outer periphery of the said rim in such a manner that
when the tyre is inflated the tendency of the said wires will be to move towards
each other, substantially as described.
2. In a wheel for velocipedes and other vehicles having a flat or substantially
flat rim and a tyre fixed by means of wire rings the formation of flanges upon the
said rim, substantially as described.
3. The manufacture and use of wheels for velocipedes and other road
carriages substantially in the manner hereinbefore described and illustrated in the
accompanying drawing.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.