An Improvement in Inflatable or Pneumatic Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1896

page_text: Date of Application, 7th July, 1896-Accepted, 15th Aug., 1896
COMPLETE SPECIFICATION.
An Improvement in Inflatable or Pneumatic Tyres for the Wheels of
Velocipedes and other Vehicles.
I, DAVID GRAY, Junior of Shore Street, Inverness, Manager to the Inverness
Candle Company 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 :-
The objects of this invention are:-
First to prevent "skidding" and side slipping of wheels fitted with inflated tyres
on wet and greasy roads.
Secondly to enable the riders of velocipedes fitted with inflated tyres to attain a
greater speed than is attainable with the tyres at present in use.
Thirdly to avoid puncturing and bursting of inflated tyres and
Fourthly to diminish vibration.
Now according to this invention I attach to or form integral with the cover of
the inflatable tube or with the tube itself in the case of single tube tyres a piece of
solid rubber or other material of which the cover or tube is composed of any
convenient width and depth which said piece of rubber or other material prevents
the cover of the air tube or the tube itself from coming in contact with the surface
of the road or street thereby preventing puncture of the air-tube and as the solid
strip of rubber is very narrow "skidding" and side slipping is prevented also:
And in order that my said invention may be fully understood I will proceed to
explain the same with reference to the accompanying sheet of drawings in which:
Fig. 1 represents side view of a portion of the rim of a wheel fitted with an inflated
tyre constructed according to this invention.
Fig. 2 is section of same.
Fig. 3 is sertion of a tyre and rim constructed according to a modification of this
invention.
Fig. 4 is a detail hereinafter referred to.
The same letters denote the same parts in all the figs.
a is the rim of the wheel which may be of any suitable size and shape.
b is the inflatable or air tube.
c is the outer cover.
The cover c has formed in one piece therewith a strip d of solid rubber or other
suitable material of which the cover is composed. This strip may be of any suitable
width and depth and forms the tread of the tyre and also prevents the cover c from
touching the surface of the road or street thereby preventing the said cover and
air tube from being punctured or cut by thorns sharp stones or other substances.
The strip d may be vulcanised to any required degree of hardness.
In Fig. 3 the strip d is shewn detachable from the cover the said strip being
preferably of the section shewn at Fig. 4 and fitted into a dovetailed groove in
the cover c so that when the tube b is inflated the strip d will be firmly held in
the said groove.
Pneumatic or inflated tyres having tubes or covers provided with strips as
herein before specified formed with or attached to them possess the advantages
of being resilient non-slipping fast and free from liability to puncture of the air
tube.
On reference to the drawings it will be seen that the invention is shewn applied

page_text: to a cover of the "Welch" type the said cover being held on the rim of the wheel
by wires but I wish it to be thoroughly understood that my invention may be
applied to any inflatable tyre whether of the single tube double tube or tube and
cover types and whether wired on or attached to the rim of the wheel in any
other manner.
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. In pneumatic or inflatable tyres for the wheels of velocipedes and other vehicles
a cover for the air tube having a strip of rubber or other suitable material d formed
in one with the said cover or attached thereto substantially as herein before described
and for the purposes stated.
2. Pneumatic tyres for the wheels of velocipedes and other vehicles having strips
of rubber or other suitable material d formed in one with the air tubes or
attached thereto substantially as hereinbefore specified and for the purposes
stated.
3. The constructions of pneumatic or inflatable tyres for the wheels of veloci-
pedes and other vehicles substantially as shewn by the accompanying drawings.
Dated this 3rd day of July 1896.
B. J. WILDBORE,
38 Great Tower Street, London, E.C., Agent for Applicant..