Improvements in and connected with Pneumatic Tyres, and in Wheel Rims for Use therewith.
Year: 1897

page_text: Date of Application, 9th Mar., 1897-Accepted, 29th May, 1897
COMPLETE SPECIFICATION.
Improvements in and connected with Pneumatic Tyres, and in
Wheel Rims for Use therewith.
I, CHARLES JOSEPH STANILAND, of 13 The Drive, Chingford, in the County of
Essex, Artist, 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, and connected with, pneumatic tyres,
and in wheel rims for use therewith, and relates more particularly to tyres of the kind
described in the Specification of a prior application for Letters Patent filed by me
on the 18th of June 1896 and numbered 13491.
An important feature of my invention has reference to means whereby the tyre is
readily and securely attached to the wheel rim and yet is easily detachable therefrom
when desired. For this purpose the tyre is provided with engagement pieces or with
catches arranged at intervals around either the cover or the air tube thereof. These
are adapted to be engaged by suitable inwardly bent edges or lugs on the wheel rim,
the engagement being effected by moving or sliding the tyre slightly around the
wheel after it has been placed on the rim thereof, means being also provided to
prevent creeping of the tyre such as might lead to accidental disengagement of the
same.
Other important features of the invention relate to an improved inflation valve, and
to means for preventing the puncturing of the tyres.
In order that my said invention may be fully understood I will proceed to describe
the same with reference to the accompanying drawings in which
Figure 1 is a perspective view partly in section of so much of a pneumatic tyre
and adjacent wheel rim as is necessary to illustrate my invention.
Figure 2 is a plan of part of the rim and entrance of valve or valves.
Figures 3 and show in perspective a portion of the tyre or tyre cover adjacent
to the rim of the wheel, as seen respectively from the side and from below.
Figure 5 is a transverse section on the line x, x Figure 4.
Figure 6 is a plan of part of a slightly modified form of rim.
Figure 7 is a perspective view of a portion of the tyre or cover employed with
this rim.
Figures 8, 9 and 10 are detail views of a catch or fastening device employed with
this form of cover and hereinafter referred to.
Figure 11 shows in plan a part of another form of rim, and
Figure 12 is a transverse section thereof.
Figures 13 and 14 are longitudinal sections of my improved inflation valve,
showing the same closed, and open respectively.
Figure 15 is a view corresponding to Figure 14 but drawn to a larger scale.
Figure 16 is an underside sectional view on the line y, y Figure 14.
Figure 17 is a transverse section of the tyre of my improved cycle provided with
a protective cover or tread according to this invention.
Referring, more particularly to the arrangement shown in Figures 1 to 5, a is the
rim of the wheel, the edges a' of which rim are bent or folded inward and are
formed with lugs or projections a' at intervals all around the wheel.
c is the tyre
cover the inner edges of which are each provided with enlargements adapted when
placed together as shown to form elongated semi-cylindrical engagement pieces or
heads projecting at intervals round the said cover, and having narrow spaces or
slots on each side of them.

page_text: The passage through this screw or stem acts both as the inlet and escape passage.
98 is a cross-piece or bar which prevents the ball entering and closing the tube or
nozzle g. At its inner end the said passage is formed with lateral branches which
provent its being closed when forcing the ball y' off its seat. When in the normal
position the outer or upper end of the screw or stem abuts upon an india rubber or
like pad 9 in the dust cap, whereby an effectual closure of the passage is obtained,
and leakage is prevented.
It will be obvious that the operation of this valve is automatic, the inflow of the
air raising the ball from its seat during the working of the pump, while when the
pump is removed the air in the tyre forces it on to its seat again and closes
the valve.
In order to permit the sliding movement necessary for locking the tyre on the rim
the tabe or nozzle g' of the valve passes through an elongated aperture or slot in the
rim of the wheel and is provided with a slide plate which overlaps the said slot
sufficiently to keep it closed in all positions of the tyre.
The means for preventing puncture of the tyre comprise a protective layer or layers
of leather, paper or other suitable material or fabric or a combination of such
substances. The said leather or the like, preferably in a compressed state, is saturated
with compounds of gutta-percha, indiarubber, shellac, copal or other hard gums to
impart to it the quality of resisting puncture. The material thus obtained may be
grooved or corrugated or have its surface roughened or rendered uneven by any
suitable means.
It may either be applied in the form of a strip or band to the
exterior or tread of the tyre as indicated at h Figure 17, being secured in place by
india rubber solution, or it may be embedded in the substance of the tyre cover as
indicated at h' (Figure 1). In some cases also it may be inserted between the tyre
cover and the air tube. Such a protecting strip or band may be used with any form
of tyre.
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. A pneumatic tyre having enlarged edges which are so formed that whon brought
together they serve for engagement with inwardly bent edges or lugs on the wheel-
rim, substantially as described and for the purpose specified.
2. A modified construction in which the abutting edges of the tyre are provided
with catches or lateral projections to engage with the aforesaid wheel-rim, substantially
as described and for the purpose specified.
3. The combination with the wheel-rim of one or more spring catches which are
adapted to engage with suitable recesses formed in the tyre to prevent the latter from.
creeping, substantially as described.
4. A wheel-rim having inwardly projecting edges or lugs substantially as described
and for the purpose specified.
5. The combination with a pneumatic tyre of a protective layer or strip formed of
one or more of the herein described materials treated in the manner set forth.
6. The improved inflation valve constructed substantially as described with
reference to Figures 13 to 16 of the accompanying drawings and for the purpose
specified.
7. The manner of attaching a pneumatic tyre to a wheel-rim by the means
substantially as described with reference to Figures 1 to 5; Figures 6 to 10; or
Figures 11 and 12 of the accompanying drawings.
DL: OL
L 1007
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.