Improvements in Wheels for Road Vehicles.
Year: 1893

page_text: Date of Application, 4th Nov., 1893
Complete Specification Left, 4th Aug., 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Road Vehicles.
I, BENJAMIN MARTIN, of 30 Carfin Street, Govanhill, Glasgow, Lanarkshire,
Tramway Inspector; do hereby declare the nature of my invention to be as
follows:-
This invention has reference to and comprises improvements in the construction
of wheels for road vehicles such as omnibuses, carriages, cabs, carts, and such like,
and has for its object the imparting to such wheels an elastic or spring action, aud
at same time lessening the noise usually caused by such wheels of ordinary
construction when traversing streets or roads.
According to one modificacion as applied to an omnibus or carriage wheel
constructed principally of wood, the nave, spokes, and felloes would be formed and
fitted together much in the ordinary manner, but in some cases the felloes would
be made lighter than usual, and the ordinary iron or steel tire binding the whole
together, which in this case would be flat on outer surface, might also be made
much lighter than usual.
The improvements of this invention consist in applying to the outer surface of
this light binding tire a ring or layer of india rubber, preferably vulcanized, of the
required thickness, and on the outside of this india rubber placing a thick iron or
steel tire the outer face of which may be slightly rounded to form the rolling face
or surface. In order to keep the india rubber ring and outer tire in place and at
same time allow a certain freedom of movement in the radial direction two flat
metal rings or flanges would be secured, one on each side by screwed bolts and nuts,
the bolts passing through holes in the felloes for the purpose.
These ring flanges
would be so proportioned that when in position they would cover the layer of
india rubber on both sides and extend outwards so as to enclose the outer thick tire
partially between them also, that is about half the thickness of the outer tire would
project from between the ring flanges when no pressure was on any part of the
wheel. In some cases this outer tire would be formed with an inwardly projecting
flange on each side to partially enclose the india rubber ring and also give a greater
surface for working between the ring flanges, and in this case the india rubber ring
would be placed in position between the flanges of the outer tire before being
placed on the wheel. The india rubber "ring may be formed solid and be placed
on the wheel in one piece as a complete ring or be formed of sections built together,
or it may be hollow or tubular and filled with compressed air like a pneumatic tire,
and instead of being flat on its outer face it might be curved or rounded and the
inner surface of the outer tire be shaped to correspond. The india rubber may be
used alone or have its outer surface protected by a layer of canvas, or it may be
used in combination with a layer or layers of asbestos or other fibrous material.
Dated the 3rd November 1893.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.

page_text: Improvements in Wheels for Road Vehicles.
I, BENJAMIN MARTIN, of 30 Carfin Street, Govanhill, Glasgow Lanarkshire,
Tramway Inspector, do hereby declare the nature of my invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement in writing that is to say :-
This invention bas reference to and comprises improvements in the construction
of wheels for road vehicles such as omnibuses, carriages, cabs, carts and such like,
and has for its object the imparting to such wheels an elastic or spring action and
at same time lessening the noise usually caused by such wheels of ordinary
construction when traversing streets or roads.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood I have hereunto
appended an explanatory sheet of drawings, the same reference letters being used
to indicate the same or corresponding parts where shown.
Figure 1 is a side view of a segment of the rim of a wheel, broken away, and
Figure 2 is a sectional view of the same taken on the line 1-1, while Figure 3
shows an arrangement modified from that shown in Figure 2.
Referring to these drawings; According to one modification as applied to an
omnibus or carriage wheel constructed principally of wood, the nave, spokes, and
felloes are formed and fitted together much in the ordinary manner, but in some
cases the felloes, A in the drawings, might be made lighter than usual, and the
ordinary iron or steel tyre B binding the whole together, which in this case would
be flat on outer surface as shown in the drawings, might also be made much lighter
than usual.
a thick
The improvements of my invention consist in applying to the outer surface of
this light binding tire B a ring or layer C of india rubber, preferably vulcanized,
of the required thickness, and on the outside of this india rubber placing
iron or steel tire D the outer face d of which may be slightly rounded to form the
rolling face or surface. In order to keep the india rubber ring C and outer tire D
in place and at same time allow a certain freedom of movement in the radial
direction two flat metal rings or flanges E, E, are secured, one on each side by
screwed bolts F and nuts f the bolts passing through holes in the felloes A for the
purpose. And for further security I may use rivets G to bind or stay the two
Hanges E, E, together and also obviate any risk from the nuts f being shaken off.
These ring flanges E, E, are so proportioned that when in position they cover the
layer of india rubber C on both sides and extend outwards so as to enclose the
outer thick tire D partially between them also, that is about half the thickness of
the outer tire D would project from between the ring flanges E, E, when no
pressure was on any part of the wheel.
In some cases as shown in Figure 3 this outer tyre D would be formed with an
inwardly projecting flange d' on each side to partially enclose the india rubber.
ring C and also give a greater surface for working between the ring flanges E, E,
and in this case the india rubber ring C would be placed in position between the
flanges d', d', of the outer tire D, before being placed on the wheel. The india
rubber ring C may be formed solid and be placed on the wheel in one piece as a
complete ring or be formed of sections built together or it may be hollow or tubular
as shown in Figure 3, and filled with compressed air like a pneumatic tire, and
instead of being flat on its outer face it might be curved or rounded and the inner
surface of the outer tire be shaped to correspond. The india rubber may be used
alone or have its outer surface protected by a layer of canvas or it may be used
in combination with a layer or layers of asbestos or other fibrous material.

page_text: Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is
First. The general arrangement and combination of the parts forming an elastic
rim for a road vehicle wheel all substantially as herein described and shown in the
accompanying drawings.
Second. The construction of wheels for road vehicles having an inner binding
metal tire, a rubber ring and an outer tyre combined with side flanges securely
bound or stayed together all substantially as herein described and shown in the
accompanying drawings.
1
A
1004
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.