Improvements in and relating to Pneumatic Tyres.
Year: 1897

page_text: Improvements in and relating to Pneumatic Tyres.
I, RICHARD KENDAL EVANS, of 40, Edith Road, West Kensington, in the County
of London, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object to provide simple and efficient means for retain-
ing the tyre cover closed around the inner air tube and for securing the whole in
position upon the rim of the wheel.
According to this invention I fix to one edge of the tyre cover on one side of the
central meeting joint and at suitable intervals apart, headed pins or studs, and
opposite at the other edge of the cover I fit slotted holes or eyes or equivalent
devices adapted, when engaged by the pins or studs, to secure together the two
edges of the cover and prevent their separation on the inflation of the inner air
tube. Preferably I attach to one edge of the cover a thin strip of metal, such as
iron or steel, having pins or studs affixed thereto, and to the other opposite edge
I attach a similar strip perforated with slots adapted to engage the said pins or
studs.
For fixing the tyre to the rim a certain proportion of the studs or headed pins
is made longer than the rest and for each of these a slot or slotted hole is formed
in the rim through one end of which slot the head of such extended stud is passed,
then by a circular movement of the tyre relatively to the rim, the studs are caused
to enter the narrower parts of the slots and pass to the ends thereof, the direction
of the narrower parts of the said slots being preferably that in which the tyre
tends to creep the tyre is then fixed in place by the inflation of the air tube.
There may be any suitable number of eyes and studs, but only a proportion of
the latter need be extended to pass through the rim for fixing the tyre in place.
The eyes or slot holes and the headed studs or pins for the cover and rim may be
of any suitable form.
By my improved arrangement the creeping of the tyre upon the rim is entirely
prevented and the cover locked upon the air tube and in the rim groove when the
said air tube is inflated.
T
1007
J. C. CHAPMAN,
Agent.
COMPLETE DI MUITIVATION.
Improvements in and relating to Pneumatic Tyres.
I, RICHARD KENDAL EVANS, of 40, Edith Road, West Kensington, in the County
of London, 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 has for its object to provide simple and efficient means fór retain-

page_text: ing the pneumatic tyre covers of wheels closed around the inner air tube and for
securing the whole in position upon the rim of the wheel.,
In fully describing the invention I will refer to the accompanying drawings
in which Fig. 1 is a part view of an open tyre cover fitted with my improved means
of closing same, Figs 2 and 3 are cross-sections respectively showing the cover open
and closed, Fig. 4 is a part plan of the inner side of a crescent shaped rim showing
fixing holes and slots, and Fig. 5 is a cross-section showing a complete tyre fixed
to the rim. Fig. 6 is a section illustrating a modification hereinafter referred to.
According to this invention I fix to one edge C¹ of the tyre cover C on one side
of the central meeting joint and at suitable intervals apart, for example about
6 inches, headed pins or studs. such as a a and opposite each at the other edge C³
of the cover I fit slotted holes or eyes bb or equivalent devices adapted, when
engaged by the said pins or studs a a, to secure together the two edges C¹ C² of
the cover and prevent their separation on the inflation of the inner air tube T.
For more securely fixing these closers I preferably attach to one edge of the
cover C a thin strip S¹ of metal, such as iron or steel, having the pins or studs a a
affixed thereto, or formed thereon and to the other opposite edge I attach a similar
strip S2 perforated with the slots b b which are adapted to engage the pins or
studs a a above referred to. The strips may be simply sewn on to the material
of the cover or they may be partly or wholly enclosed therein, or firmly secured to
same in any convenient way. The strip S3 is preferably made somewhat wider
than the strip S¹ so as to form a good bearing surface against the rim. When the
studs are passed through the slots and the tube T inflated it is plain that a secure
joint is made.
For fixing the tyre to the rim a certain and necessary proportion of the studs
or headed pins a a is made longer than the rest and for each of these elongated pins
a corresponding slot or slotted hole d is formed in the inner face r of the-rim R
through one end of which slot the head of such extended stud a is passed; then by
a circular movement of the whole tyre relatively to the rim as indicated by the
arrow Fig. 4, the extended studs a a are caused to enter the narrower parts d' of
the slots and pass to the ends thereof, the direction of the narrower parts of the
said slots being preferably that in which the tyre tends to creep; the tyre is fixed
in place by the inflation of the air tube T; or instead of the slots d in the crescent
shaped rim I may use for the purpose some of the holes which exist opposite the
spoke ends (for the purpose of adjusting the nuts thereof) which would thereby
be filled by the heads of the studs a a and the tyre. thus securely fixed and pre-
vented from creeping.
There may be any suitable number of eyes and studs a, but only the neces-
sary proportion of the latter, say from one to six, need-be extended to pass through
the rim R as described for fixing the tyre in place. I may in some cases as shown
in Fig. 6 use one or more still longer pins such as a¹ adapted to pass entirely
through the rim, whether crescent shaped or otherwise, and to project on the inner
side thereof. Such pins are not headed but are screwed and secured by nuts a
bearing on the inner face of the rim, and by this means also the tyre is equivalently
prevented from creeping.
r
The eyes or slot holes b and the headed studs or pins a for the cover and rim may
be of any suitable form, but those illustrated serve the purpose.
By the above described arrangements the creeping of the tyre upon the rim is
entirely prevented, and the cover locked upon the air tube and in the rim-groove
or recess when the said air tube is inflated.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. The herein described means for closing the tyre cover of wheels around the
inner air tube consisting in the arrangement of headed-studs and oppositely dis-
posed slotted holes for the same, either attached direct to the material of the cover or

page_text: combined with a metallic strip affixed to each side of the opening of said cover,
substantially as described and illustrated.
2. The method of securing to the rim a tyre fitted for closing as above described
and claimed in the preceding claim, consisting in the rim slots d d adapted to
receive certain longer headed studs a and to admit of a circular movement of the
tyre relatively to the rim for preventing creeping of the former as described in
reference to Fig. 4, and subject to the modification described in reference to Fig. 6,
and substantially as set forth.
3. The herein described means for closing the tyre covers of wheels and for
securing same in position upon the rim of the wheel.
1000
Dated 01115
For the Applicant,
J. C. CHAPMAN,-
Chartered Patent Agent, 70, Chancery Lane, London, W.C.