Improvements in Pneumatic Tyres for Cycle and other Wheels.
Year: 1895

page_text: Date of Application, 18th Sept., 1895
ALL
Lukse 1896
Date of Application, 18th Sept., 1899
Complete Specification Left, 21st May,
1890-Accepted, 4th July,
1806
5
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for Cycle and other Wheels.
We, WILLIAM JOSEPH SWIFT, Watch Maker, and WILLIAM RICHARD SWIFT,
Tyre Manufacturer, both of 30 Rudge Road, Coventry, in the County of Warwick,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in that type of pneumatic tyres which
are secured to the rims or felloes by wiring-on, and has for its object, a simple
and efficient means for effectually securing the said tyres to the rim.
Ordinarily each of the wires by which the said tyres are secured are in the form
of a single endless hoop or ring, and are without any means of changing their
lateral position upon the rim.
By our improvements, we run within the piped edging of each side of the cover,
a continuous and double coiled wire, with one coil or the ends of one coil, connected
to the valve, through the medium of which the tightening or securing of the cover
to the rim is effected.
In carrying out our improved means of connection, we take, for illustration, a
rim having a cross section semi-circular at the well, terminated upon either side
by convexed shoulders having inside convexed outer walls or edges. The body of
the valve is terminated by a head secured to one part of the underside of the
inner tube or air chamber, but having an interposed length of canvas coming
upon the underside of the rubber within the region of the valve. The head of the
said valve thus secured to the inner tube carries a plate with a screwed boss or
eye adapted to take upon the outside wormed body, and having its edges turned
down all round, through pairs of holes or piercings in which, the ends of the
wires engage by hooking or looping or otherwise.
slit transversely at:
The piping in each edge of the cover is continuous, but
two points, each about six or seven inches removed from the valve. Into each of
these pipings is threaded a double coil of wire, with the free ends of one of the
coils extending respectively outwardly through the cross slits and coming up to
the valve, and having their terminals attachedly connected to the plate of the
valve by looping, so that within the parts of the pipings located between the slits
on the two opposite sides of the valve, the covered-up wire is single, whilst all the
other covered-up wire is double, and the naked end parts of the wires connected with
the valve plate diverge to an extent equal to the distance between the edges of
the cover and the stem of the valve, which distance may be only some quarter of
an inch or so.
Now
To secure the cover of the tyre to the rim, when the inner air tube is deflated,
pass the valve body through a hole in one side of the middle of the well of the
rim, and lay the air tube within the trough of the rim, then slightly stretch the
cover and spring the same onto the rim, with the edges of the former lying upon
the shoulders or shelf-like annular rests within the trough of the latter.
screw a nut from the inner side of a rim onto the protruding end of the valve
body, which is thereby drawn down by screwing home of the said nut until the
valve plate lies at. the bottom of the well, with the ends of the wires attached thereto
drawn also down to an angle relative to the bodies of the wires lying upon the ledges
upon the opposite sides of the trough of the rim.
By now inflating the tyre, the lateral distension of the inner tube forces the

page_text: edges of the restraining cover fully home and outwardly over the rest ledges within
the trough of the rim, hence the securing of the tyre to the rim both through the
medium of wires and pressure by inflation.
Dated this 17th day of September 1895.
WILLIAM JOSEPH SWIFT,
WILLIAM RICHARD SWIFT,
By Henry Skerrett,
Agent for Applicants.
Improvements in Pneumatic Tyres for Cycle and other wheels.
'We, WILLIAM JOSEPH SWIFT, Watch Maker, and WILLIAM RICHARD SWIFT,
Tyre Manufacturer, both of 30 Rudge Road, Coventry, in the County of Warwick,
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 that type of pneumatic tyres which
are secured to the rims or felloes by wiring-on and has for its object, a simple and
efficient means for effectually securing the said tyres to the rims.
Ordinarily each of the wires by which the said tyres are secured is in the form
of a single endless hoop or ring, and is without any means of changing its lateral
position upon the rim.
By our improvements, we run within the piped edging of each side of the
cover, a continuous and double coiled wire, with one coil, or the ends of one
coil, connected to the valve, through the medium of which the tightening or
securing of the cover to the rim is effected.
In carrying out our improved means of connection, we take, for illustration, a
rim having a cross section semi-circular at the well, terminated upon either side
by convexed shoulders having inside convexed outer walls or edges. The body of the
valve is terminated by a head secured to one part of the underside of the inner
tube or air chamber, but having an interposed length of canvas coming upon the
underside of the rubber within the region of the valve. The head of the said
valve thus secured to the inner tube carries a plate with a screwed boss or eye
adapted to take upon the outside wormed body, and having its edges turned down
all round, through pairs of holes or piercings in which, the ends of the wires engage
by hooking or looping or otherwise.
The piping in each edge of the cover is continuous, but is slit transversely at
two points, each about six or seven inches removed from the valve. Into each of
these pipings is threaded a double coil of wire, with the free ends of one of the coils
extending respectively outwardly through the cross slits and coming up to the valve,
and having their terminals detachably connected to the plate of the valve by looping,
so that within the parts of the pipings located between the slits on the two opposite
sides of the valve, the covered-up wire is single, whilst all the other covered-up wire
is double, and the naked end parts of the wires connected with the valve plate
diverge to an extent equal to the distance between the edges of the cover and the
stem of the valve, which distance may be only some quarter of an inch or so.
Figure 1 of the accompanying drawings represents a full size sectional view
of a part of a pneumatic tyre in the region of the valve, with the valve and wires
in the positions which they assume before the securing of the tyre has been effected,
or just after the cover has been sprung onto the rim.
Figure 2 represents a like section as Figure 1, with the said cover enveloping the
inner air tube and secured to the rim by means according to our improvements.
Figure 3 shows a horizontal section of the cover separately, upon the dotted line

page_text: Figure 2, through the piped edging of the cover, wherethrough the wires of
double coils pass.
Figure 4 shows an elevation, upon a small scale, of the whole of the tyre.
the
Figure 5 is a cross section of Figure 4 upon the dotted line r', but in full sized
scale.
Figure 6 represents one of the double coils separately..
Figure 7 represents one of the piped or hollow selvaged edgings of the cover and
a part of the rim upon an enlarged scale.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
a is the rim, b the inner air tube and c the cover, with the piped or selvaged
edge c', having running within it, a double coil or hoop of wire d, with the outer
ends d², passing through opposite outlets c³, in the cover and with the other parts
of the wire lying within the hollow edge.
The said terminal ends d³, are forined into loops, which pass through eyes e',
in a plate e, clamped to the head f, of the valve f, which has an affixing nut ƒ³,
coming outside the rim, and the usual tail connections f³.
To prevent the terminal ends of the wire from injuring the distensible air tube,
conical shields or sheaths g, cover them.
The rim a, has shoulders a', well a² and turned out edges a³.
To secure the cover of the tyre to the rim, when the inner air tube is deflated,
pass the valve body through a hole in the bottom of the well of the rim, and lay
the air tube within the trough of the rim, then slightly stretch the cover and
spring the same onto the rim, with the edges of the former lying upon the
shoulders or shelf-like annular rests within the trough of the latter as shown in
Figure 1. Now screw a nut from the inner side of the rim onto the protruding
end of the valve body, which is thereby drawn down by screwing home of the
said nut until the valve plate lies at the bottom of the well, with the ends of the
wires attached thereto drawn also down to an angle relative to the bodies of the wires
lying upon the ledges upon the opposite sides of the trough of the rim, as shown
in Figure 2.
By now inflating the tyre, the lateral distension of the inner tube forces the edges
of the restraining cover fully home and outwardly over the rest ledges within the
trough of the rim, hence the securing of the tyre to the rim both through the
medium of wires and pressure by inflation.
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 :-
:-
First. In pneumatic tyres, securing the same to their rims through the medium of
wires whose terminal ends are connected to an inner part of the valve, which, when
drawn home, diminishes the normal circumferential area encompassed by them,
substantially as described and set forth.
Secondly. In wired-on pneumatic tyres, fitting the hollow or piped edges of the
opposite sides of the covers with contracting and enlarging double coiled wires,
substantially as and for the purpose described and set forth.
Thirdly. The means herein described for securing wired-on pneumatic tyres to
their rims, substantially as set forth.
Dated this 20th day of May 1896.
WILLIAM JOSEPH SWIT
WILLIAM RICHARD SWIFT,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicants.