Improvements in and connected with Pneumatic Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1896

page_text: Date of Application, 13th May. 1896
Complete Specification Left, 13th Feb., 1897-Accepted, 17th Apr., 1897
Improvements in and connected with Pneumatic Tyres for the
Wheels of Velocipedes and other Vehicles.
I, JOHN FREDERICK DUKE of 160 Rosendale Road, West Dulwich in the County
of London, Chemist, do hereby declare the nature of this invention to be as
follows:-
My invention has reference to wheels which are fitted with pneumatic tyres and
its chief object is to protect the pneumatic tube from all liability to puncture by
flints, nails or the like.
According to my invention I mould the pneumatic tube with a comparatively
wide and deep flange, rib or projection around the same so as to constitute the
bearing surface or tread and I protect the tube along each side of the said flange,
rib or projection by a plate. of metal or other suitable material these plates being
preferably curved in section so as to fit the surface of the tube. The plates can be
kept in position by means of arms connecting them at intervals-say 4 arms more or
less-on each side, to the metal wheel rim which is surrounded by the pneumatic tube.
By constructing the wheel as above described all shock, concussion, sudden pressure
or the like comes first upon the flange, rib or projection and is transmitted directly to
the pneumatic tube, while this tube cannot be punctured or injured by any objects
on the road because it is fully protected by the flange, rib or projection forming the
tread and by the side plates. In short the advantages both of a pneumatic tyre and
a solid rubber tyre are combined.
Dated this 13th dow of May 1896
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.
Improvements in and connected with Pneumatic Tyres for the
Wheels of Velocipedes and other Vehicles.
I, JOHN FREDERICK DUKE of 160 Rosendale Road, West Dulwich in the County
of London, Chemist, 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 :-
My invention has reference to wheels which are fitted with pneumatic tyres and
its chief object is to protect the pneumatic tube from all liability to puncture by
flints, nails or the like.
According to my invention I mould the pneumatic tube with a comparatively
wide and deep flange, rib or projection around the same so as to constitute the
bearing surface or tread and I protect the tube along each side of the said flange,
rib or projection by a plate of metal or other suitable material, these plates being

page_text: preferably curved in section so as to fit the surface of the tube. The plates can
be kept in position by means of arms connecting them at intervals say 4 arms
more or less-on each side, to the metal wheel rim which is surrounded by the
pneumatic tube.
By constructing the wheel as above described all shock, concussion, sudden
pressure or the like comes first upon the flange, rib or projection and is transmitted
directly to the pneumatic tube, while this tube cannot be punctured or injured by
any objects on the road because it is fully protected by the flange, rib or projection
forming the tread and by the side plates." In short the advantages both of a
pneumatic tyre and a solid rubber tyre are combined. The pneumatic tube having
a tread such as described can be used without the side plates but of course the
side plates are of advantage as they prevent all liability to puncture.
Referring to the accompanying drawings:-
Figure 1 is a side elevation of a velocipede wheel illustrating the application of
my improvements;
Figure 2 is a cross on a larger scale on the line 2-2 of Figure 1 and Figure 3 is
a cross section also on a larger scale on the line 3-3 of Figure 1.
In these figures:-a is the pneumatic tube moulded with the comparatively wide
and deep flange, rib or projection a' around the same so as to constitute the bearing
surface or tread of the tyre.
The tube a is protected along each side of the said flange, rib or projection a¹ by a
circular annular plate of metal or other suitable material. These plates bb are
preferably curved in section so as to fit the surface of the tube, and they are kept in
position by means of arms e connecting them at intervals on each side to the metal
wheel rim d which is surrounded by the pneumatic tube a.
In the arrangement shown in Figure 1 four arms c are employed, but any convenient
er suitable number may be used.
The plates bb may be fastened to the arms c, and the latter may likewise be fastened
to the wheel rim d in any suitable manner such as by means of screws or rivets.
Screws e are shown employed for the purpose in the right hand half of Figure 3, and
the rivets e¹ are shown in the left hand balf of the same figure.
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. A pneumatic tyre consisting of a pneumatic tube moulded on its outer periphery
with a comparatively wide and deep flange, rib or projection to serve as the tread,
substantially as and for the purpose described and shown.
2. A pneumatic tyre consisting of a pneumatic tube moulded on its outer periphery
with a comparatively wide and deep flange rib or projection to serve as the tread,
and provided on each side with a projecting circular annular plate fastened by
means of arms to the wheel rim, substantially as and for the purpose described
and shown.
D
101 1
1
1007
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.