Improvements in Pneumatic Tyres for the Wheels of Bicycles, Tricycles, and other Velocipedes and Road Carriages.
Year: 1893

page_text: Date of Application, 18th Dec., 1893
Complete Specification Left, 18th Sept., 1894-Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for the Wheels of Bicycles,
Tricycles, and other Velocipedes and Road Carriages.
I, SAM THOMAS RICHARDSON, of 3ª Rea Street, in the City of Birmingham,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
:-
This invention has reference to pneumatic tyres for the wheels of bicycles
tricycles and other velocipedes and road carriages and this invention consists
of the herein described improved means for securing the outer covering of the said
tyres to the wheel rim so. as to enable the outer covering or a portion of the outer
covering to be readily removed for examination and for removal of the inner air
tube and to be readily refixed to the wheel rim.
According to one arrangement of carrying out my invention the trough section
wheel rim is made with a series of short inwardly projecting pins pegs or other
small projections at each side and extending all round the said rim at or a short
distance within the periphery of the same these pins pegs or other inwardly
projecting parts engaging in corresponding holes which make in the indiarubber
and canvas insertion or other outer covering portion of the tyre near both edges of
the same so that when the inner air tube is inflated the said pegs pins or other
inwardly projecting parts of the metal wheel rim engaging in the holes in the edges
of the outer covering will effectually secure the latter in place so that by deflating
or partly deflating the inner air tube the edges or a portion of one of the edges of
the outer covering can easily be detached from the said pegs pins or other inwardly
projecting parts and the inner air tube examined or removed and replaced. These
pegs pins or other inwardly projecting parts of the wheel rim may either be separate
rivets or pins rivetted or otherwise fixed to the wheel rim or they may be formed
by projections round the edge of the wheel rim at short intervals apart which are
bent inwardly towards each other or they may be formed by punching holes in the
wheel rim and near the edge thereof so as to throw up the metal inside the rim
round the holes thus forming inwardly projecting eyeletted like holes for the outer
covering to engage with as above described.
Or instead of forming the pegs pins or other projections on the inner surfaces of
the wheel rim as above described to engage with holes in the outer covering portion
of the tyre the pegs pins or eyeletted studs or hooks may be fixed along near the
edges of the outer covering portion of the tyre to engage with corresponding holes
formed in the wheel rim. Or instead of pegs or studs I may use hooks something
like what are known as lacing hooks for boots fixed along near the edges of the
outer covering portion of the tyre and engaging in corresponding holes in the
wheel rim.
Dated this 16th day of December 1802

page_text: COMPLETE SPECIFICATION.
Improvements in Pneumatic Tyres for the Wheels of Bicycles,
Tricycles, and other Velocipedes and Road Carriages.
I, SAM THOMAS RICHARDSON, of "3ª Rea Street, in the City of Birmingham,.
Manufacturer, 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 reference to pneumatic tyres for the wheels of bicycles
tricycles and other velocipedes and road carriages and this invention consists of
the herein described improved means for securing the outer covering of the said
tyres to the wheel rim so as to enable the outer covering or a portion of the outer
covering to be readily removed for examination and for removal of the inner air
tube and to be readily refixed to the wheel rim.
'
I will describe my invention by referring to the accompanying drawing on
which
Fig. 1 is a cross section of a pneumatic tyre and wheel rim constructed according
to this invention;
Fig. 2 shews a portion of the metal wheel rim separately;
Fig. 3 shews a portion of the metal wheel rim and outer covering of the tyre
partly detached therefrom and
Fig. 4 shews a portion of the said wheel rim and tyre on a small scale with the
outer covering of the tyre partly detached from the wheel rim and a portion of the
inner air tube removed therefrom.
The same letters of reference indicate the same parts in all the figures.
In carrying out my invention I prefer to use a hollow trough section wheel rim
of the well known crescent like form consisting of an inner ring A¹ and an outer
ring A³ the edges of which latter are closed round the inner ring A' to secure the
two rings together. The trough section wheel rim is made with a series of short
inwardly projecting hooks a at each side and extending all round the rim at a
short distance within the periphery of the same these hooks a engaging in
corresponding holes 6 which I make in the indiarubber and canvas insertion or
other outer covering portion B of the tyre near both edges of the same so that
when the inner air tube C is inflated the hooks a engaging in the holes 6 will
effectually secure the outer covering B in place. By deflating or partly deflating
the inner air tube C the edges or a portion of one of the edges of the outer
covering B can as shewn in Fig. 4 be easily detached from the hooks a and the
inner air tube C examined or removed and replaced.
These hooks a are by preference formed as shewn by parts of the inner ring A¹
being bent inwardly towards each other as shewn before the rings A' A' are
secured together.
The outer covering B is by preference made as shewn in Figs. 1 and 3 with a
flap b' consisting of a strip of canvas or like material cemented or vulcanized or
otherwise fixed inside the same so that when the outer covering and air tube are in
place as shewn by Fig. 1 this flap 6' will cover the hooks a along both sides of the
rim and prevent any possibility of the inner air tube C being injured by the hooks a.
Or this flap b¹ may as shewn in Fig. 4 be dispensed with.
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. The herein described improved means for securing the outer covering of
a pneumatic tyre to a wheel rim consisting in providing the inner surface of the
wheel rim with inwardly projecting hooks along each side at or near the periphery

page_text: of the rim which hooks will engage with corresponding holes in the outer covering
and near the edges of the same when the outer covering and inner air tube are
in position on the wheel rim substantially as herein before set forth.
2. The improved wheel rim for use with a pneumatic tyre consisting of the
combination of the inner ring A' and outer ring A' the edges of the outer
ring A$ being closed over the edges of the inner ring A' and the latter made with
small portions a turned inwardly at regular intervals apart all round both sides of
the rim thus forming hooks substantially as described and shewn for the purpose
of engaging in corresponding holes in the outer covering of the tyre to secure the
tyre and rim together as set forth.
Dated this 17th day of September 1894.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.