Improvements in and connected with Wheels for Velocipedes, Carriages, and other Vehioles.
Year: 1896

page_text: Date of Application, 29th July, 1896
Complete Specification Left. 29th Apr., 1897-Accepted, 29th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in and connected with Wheels for Velocipedes,
Carriages, and other Vehioles.
I, GUSTAV JACOB GEH, of 7, Jewin Street, in the City of London, Manufacturers'
Agent, do hereby declare the nature of this invention to be as follows:-
My invention relates to a novel construction of wheels for velocipedes, carriages
and other vehicles.
In a wheel constructed according to my invention the tyre is made solid and is
adapted to slide between the two sides or cheeks of the wheel rim, springs or a
springy surface being arranged behind the tyre inside the rim to support the said
tyre in its normal position.
In practice I find it advantageous to arrange the springy surface against which the
tyre rests in the following manner. In the space between the tyre and the rim
I arrange what I may term an auxiliary rim of an arch or channel shape in transverse
section, which auxiliary rim is fixed to the rim proper in such a manner that the
channel is opposite to the tyre. Across the edges of the auxiliary rim 1 tightly
stretch a piece of fabric which forms the spring surface, the space behind it serving
to permit of the springing movements under the pressure of the tyre against it.
To stretch the said fabric tightly I advantageously make use of atmospheric
pressure and for this purpose I insert the edges of the said fabric into grooves or
channels inside the wheel rim in such a manner that spaces are formed between the
said fabric and the outsides of the auxiliary rim, and I provide for exhausting
the air from these spaces so that the external air pressure will tend to push the fabric
into the said spaces and so produce tension on that part of the fabric covering the
channel in the auxiliary. rim. Or I may inflate the said spaces and in this case the
auxiliary rim may be dispensed with.
001 al 1906
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in and connected with Wheels for Velocipedes,
Carriages, and other Vehicles.
I, GUSTAV JACOB GEH, of 12, Edmund Place, Aldersgate Street, formerly of
7, Jewin Street, in the City of London, Manufacturers' Agent, 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 relates to a novel construction of wheels for velocipedes, carriages and

page_text: In a wheel constructed according to my invention the tyre is made solid and is:
adapted to slide between the two sides or cheeks of the wheel rim, springs or a springy
surface being arranged behind the tyre inside the rim to support the said tyre in its-
normal position.
In practice I find it advantageous to arrange the springy surface against which
the tyre rests.in the following manner. In the space between the tyre and the rim,
I arrange what I may term an auxiliary rim of an arch or channel shape in transverse
section, which auxiliary rim is fixed to the rim proper in such a manner that the
channel is opposite to the tyre. Across the edges of the auxiliary rim I tightly
stretch a piece of fabric which forms the spring surface, the space behind it serving to
permit of the springing movements under the pressure of the tyre against it.
To stretch the said fabric tightly. I advantageously make use of atmospheric pressure
and for this purpose I form spaces between the said fabric and the auxiliary rim,
and I provide for exhausting the air from these spaces so that the external air pressure
will tend to push the fabric into the said spaces and so, produce tension.
To enable my invention to be fully understood I will describe the same by reference
to the accompanying drawing, in which:-
Figure 1 is a sectional view through the rim and tyre of a wheel constructed
according to my invention; and,
Figure 2 is a similar view illustrating a modification.
a is the wheel rim and b is the tyre which, as shewn in Figure 1, is adapted to slide
between the sides or edges c, c of the wheel rim. d is what I term "the auxiliary
rim" and e is the piece of fabric which forms the springy surface against which the
tyre rests, the edges of the said piece of fabric being secured to the inside of the rim a
in such a manner that the spaces (contained between the outside of the auxiliary
rim d; the fabric e and a portion of the rim a) are hermetically closed so as to permit
of producing a vacuum therein. As shewn in Figure 1 the edges of the said fabric
are inserted in two channels g, g formed inside the rim a and held therein by means
of wires or cords h, h.
With this arrangement when the air is exhausted from the spaces ffthe sides of
the fabric will be bulged inwards by, the external atmospheric pressure and thereby
tightly stretch the fabric lying across the channel of the auxiliary rim so that the
said piece of fabric will form a yielding surface which after being pressed inwardly
will return to its normal position.
In the modification of my invention shewn in Figure 2 I still make use of a
vacuum in conjunction with atmospheric pressure for tightly stretching the surface
against which the tyre rests. In this modification, however, the inner rim d has its
edges directly in contact with the edges of the. rim a and, the fabric e is drawn over
and cemented to these edges so that the space f enclosed between the fabric and the
inner rim d is hermetically sealed.
The fabric e is formed with a web i across it, which web i when the air is exhausted
from the chamber will be tightly stretched.
Against this tightly stretched web i I lay an endless tube j of flexible metal which
is free to move under the pressure between, the two edges of the rim and over the
whole I place a jacket or cover k which, as shewn in the drawing, is secured by
having its hook-shaped edges engaged with the edges of the rim which are
correspondingly hooked. or bent.
In both the arrangements hereinbefore described it will be seen that so long as the
air is exhausted from the chambers f the fabric is maintained taut under the action
of the external air pressure. In both cases also suitable valves must be arranged in
connection with the spaces or chambers for the purpose of exhausting the air from
cthe said chambers.
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 wheel for velocipedes and other vehicles wherein the elasticity is due to

page_text: the rim being supported against a surface which is maintained in a state of tension.
under the combined action of a vacuum and atmospheric pressure, substantially as.
described.
2. Wheels for velocipedes and other vehicles the tyres and rims of which are
constructed and arranged substantially in the manner hereinbefore described and
illustrated in the accompanying drawing.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant..