IMPROVEMENTS IN VEHICLE OR MACHINERY WHEELS, WHEREBY JAR OR SHOCK IS DIMINISHED
Year: 1885

page_text: I, THOMAS BOLAS of 8 Grove Terrace, Chiswick, Middlesex Analytical Chemist,
do hereby declare the nature of my invention for IMPROVEMENTS IN VEHICLE OR
MACHINERY WHEELS, WHEREBY JAR OR SHOCK IS DIMINISHED to be as follows:-
In the hub of the wheel I interpose one or more rings or cylinders of caoutchouc
in such a way as to insulate or separate by caoutchouc, the central portion of the
hub from the outer circumference of the hub, or that portion of the hub bearing
the spokes. In the case of a wheel constructed with a web, the word "web" must
be taken as equivalent to "spokes."
I prefer to roughen or to corrugate those portions of the hub which are in
immediate contact with the caoutchouc or to stud such parts with pins or holes. In
some cases I place the caoutchouc in position while it is in a soft or uncured
condition, and cure or vulcanise such caoutchouc while in position: thus securing
strength and adhesion. In other cases I clamp the caoutchouc rings or cylinders
in position by such mechanical devices as may serve to hold them firmly in
position. Sometimes I thus fix them by the compression of a laterally adjustable
part and sometimes by the compression of a radially adjustable part or parts.
For the purpose of my invention, the terms ring or cylinder must be understood
as including not only a complete ring or cylinder, but also a ring or cylinder built
up of a number of parts like the staves of a tub or. the beads of a necklet. I also
wish it to be understood that for the purpose of my invention it is not necessary
that the rings or cylinders should be continuous, as vacant spaces may be left
between those parts which I have compared to the staves of a tub or to the beads
of a necklet.

page_text: Improvements in Vehicle or Machinery Wheels, whereby Jar or
Shock is Diminished.
I, THOMAS BOLAS of 8 Grove Terrace Chiswick, Middlesex, Analytical
Chemist and Experimentalist do hereby declare the nature of my invention for
IMPROVEMENTS IN VEHICLE OR MACHINERY WHEELS, WHEREBY JAR OR SHOCK
IS DIMINISHED and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement :-
In the hub or nave of a wheel I interpose or fix one ring or cylinder or more
rings or cylinders of caoutchouc, in such a way as to insulate or separate by
caoutchouc the central portion of the hub or nave from the outer circumference of
the hub or nave: by the outer circumference of the hub or nave I mean that part
of the hub or nave or those parts of the hub or nave to which the spokes are
attached. The word spokes in the above sentence must be taken as including the
web of a wheel constructed with a web instead of spokes. In order that the ring
or rings of caoutchouc may be held with certainty in position I prefer to roughen
groove indent or corrugate these portions of the hub which are in immediate
contact with the caoutchouc, or to stud such parts with holes or pins. In some
cases I place the caoutchouc in position while in a soft or uncured state and cure or
vulcanise such caoutchouc while in position, thus ensuring exact fit & firmness. In
other cases I clamp the caoutchouc in position by such mechanical adjustments as
may serve to hold it firmly in position, either by lateral compression or by
compression in a radial direction or by a combination of both.
For the purpose of my invention the term ring or cylinder must be understood
as including not only a complete ring or cylinder, but also a ring or cylinder built
up of a number of parts, like the staves of a tub or the beads of a necklet.
I also wish it to be understood that for the purpose of my invention it is not
necessary that the rings or cylinders of caoutchouc should be continuous, as vacant
spaces may be left between those parts which I have. compared to the staves of a
tub or the beads of a necklet.
.
Having now particularly described and ascertained the nature of my invention
and in what manner the same performed I declare that what I claim is:
1. So introducing caoutchouc into the hub of a wheel as to separate by such
caoutchouc the central part of the hub from the part or parts bearing the spokes gr
the equivalent of spokes.
2. Fixing or holding the caoutchouc by radial or lateral compression between
roughened grooved indented or corrugated surfaces.
3. Placing the caoutchouc in position while in an uncured or soft state and
vulcanising or curing the caoutchouc while in position.
י
1000