Improvements in Pneumatic Tyres for Cycles and other Vehicles.
Year: 1895

page_text: Date of Application, 17th Jan., 1895
Complete Specification Left 17th Oct 1895-Accepted 17th Apr.. 1896
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for Cycles and other Vehicles.
I, JAMES WILLIAM SMALLMAN, of 61, Chancery Lane, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:
This invention relates to pneumatic tyres for cycles and other vehicles.
According to my improved method of construction, I employ a cover having one
edge free and the other edge fast; the free edge being connected to the device by
means of which the fast edge is secured to the rim.
In carrying out this invention, I prefer to provide the fast edge with an
overlying metal band the ends whereof are held by or near the valve-stem; the
free edge, which is stiffened with wire bent from side to side, lying between the
metal band and the fast edge. Or an open ring enclosed in the edge of the cover
may be substituted for the stiffening wire.
To obtain access to the air-tube, it is merely necessary to disconnect the free
edge from the metal band.
The rim may have a central groove in which the edges of the cover lie. This
groove may be deep enough to permit the band to be pressed in at one part and
thus raised at another in order to facilitate the connecting of the free edge.
Dated this 17th day of January 1895.
Improvements in Pneumatic Tyres for cycles and othe
Υ ΟΠΟΙΟ
I, JAMES WILLIAM SMALLMAN, of Camp Hill Grange, Nuneaton, in the
County of Warwick, late of 61, Chancery Lane, in the County of Middlesex,
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 pneumatic tyres for cycles and other vehicles.
According to my improved method of construction, I employ a cover having one
edge free and the other edge fast; the free edge being connected to the device by
means of which the fast edge is secured to the rim.
In carrying out this invention, I prefer to provide the fast edge with an
overlying metal band the ends whereof are held by or near the valve-stem; the
free edge, which is stiffened with wire bent from side to side, lying between the
metal band and the fast edge. Or an open ring enclosed in the edge of the cover
may be substituted for the stiffening wire.
edg
To obtain access to the air-tube, it is merely necessary to disconnect the free
from the metal band.
dge
The rim may have a central' groove in which the edges of the cover lie. This
groove may be deep enough to permit the band to be pressed in at one part and
thus raised at another in order to facilitate the connecting of the free edge.

page_text: ine accompanying drawings illustrate my improved detachable double-tube-
pneumatic tyre and various details of construction.
Fig. 1 is a transverse section representing the tyre fitted in a rim with a central
groove.
Fig. 2 is a plan of one end of a device by means of which the fast edge of the
cover may be secured to the rim.
Fig. 3 is a view partly in longitudinal section and partly in elevation showing:
the valve-stem passed through the ends of the securing device; the air-tube being
omitted.
Fig. 4 illustrates diagrammatically and on a larger scale the way in which the
free edge of the cover is connected by flat zigzag wire to the securing device.
In Fig. 5, the zigzag wire is hooked.
Fig. 6 shows on the free edge of the cover a hook which connects with the
device employed for securing the fast edge of the cover to the rim.
In Fig. 7, an open ring enclosed in the free edge of the cover is represented as
engaging with a hooked metal band.
Fig. 8 is a plan of one end of the hooked band.
Fig. 9 is a plan of the ends of the
open ring.
Fig. 10 refers to the manufacture of the open ring and hooked band.
Fig. 11 is a diagram on a larger scale illustrating the open ring in engagement
with the hooked band.
A A A is the cover; A being the india-rubber tread, A¹ the free edge and
A* the fast edge. B is an overlying metal band by means of which the fast edge
is secured to the rim C. The end of the band is formed with a hole 6x (Fig. 2)
for the valve-stem, and may have a row of perforations for enabling it to be
stitched to the fabric of the cover; the end b¹ of the band being similar to the
end . G is the air-tube. The ends 6 and 6' are placed one over the other, as
indicated in Fig. 3, and the valve-stem H is then passed through the holes and the
thumb-nut H screwed home. Consequently the edge A can not be detached
from the rim until the thumb-nut H¹ has been unscrewed and the valve-stem H
taken out.
The free edge A' is stiffened with wire D (Figs. 1 and 4) bent from
side to side, or with wire D' (Fig. 5) bent from side to side and hooked. A series
of hooks, each hook similar to the hook E in Fig. 6, may be fixed to the free
edge A' and serve instead of the wire D or D'. The means employed for enabling
the free edge to be connected to the securing device may, however, be varied
without departing from the principle of this invention. For instance, an open
ring F (Figs. 7, 9 and 11) may be used, instead of the zigzag wire or the series of
hooks. The inner edge of this ring is hooked to engage with the hooked inuer
edge of the metal band B' (Figs. 7, 8 and 11). The ends fand f¹ (Fig. 9) of the
ring may have rows of perforations for enabling them to be stitched to the free
edge of the cover. His the head of the valve-stem. The end of the band B¹
(Fig. 8) has a hole for the valve-stem, and may have a row of perforations
for enabling it to be stitched to the fast edge of the cover; the other end of the
band being formed to correspond. The hooking of the inner edge of the open ring
and of the inner edge of the metal band may be accomplished after or before the
ring and band are incorporated in the cover. One edge of the strip F* in Fig. 10
has been cut at intervals. The ring F and band B₁ may each be made from a
strip so cut along the inner edge for the purpose of enabling the hooking operation
to be more readily effected after the fabric of the cover has been folded round and
solutioned to the ring and band.
X
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A detachable double-tube pneumatic tyre secured to a grooved rim substan-
tially as described.
2. A detachable pneumatic tyre comprising a cover having one edge free and

page_text: the other edge fast, the free edge being connected to the device by means of which.
the fast edge is secured to the rim, substantially as described.
3: In a detachable pneumatic tyre, providing the fast edge of the cover with a
metal band the ends whereof are held by the valve-stem, and furnishing the free.
edge with means for engaging with said metal band, substantially as described.
4. In a detachable pneumatic tyre, providing the fast edge of the cover with a.
metal band and furnishing the free edge with stiffening wire to engage with that
band, substantially as described.
5. In a detachable pneumatic tyre, providing the fast edge of the cover with a.
metal band and furnishing the free edge with an open ring to engage with that.
band, substantially as described.
Dated the 15th day of October 1805
JAMES W. SMALLMAN.