Improvements in or relating to Resilient Tyres and Rims for Wheels.
Year: 1897

page_text: Date of Application, 28th July, 1897
Complete Specification Left, 28th Apr., 1898-Accepted, 18th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to Resilient Tyres and Rims for
Wheels.
I, HAZELWOOD CARMONT, of Helmsdale, Kingston-on-Thames, Surrey, Engineer,
do hereby declare the nature of this invention to be as follows:-
=
This invention has for object, centrain improvements in or relating to resilient
tyres for wheels.
For the purposes of my said invention, I construct a rim of gutter shape or
of angle shape and employ a side flange plate, the wings of which are provided
with slots at intervals circumferentially or otherwise but preferably long slots
circumferentially so that the solid parts between the slots form a bite in the
rubber or find a lodgment between projecting fillets with which the side projecting
base of the rubber is provided.
The rubber may be solid or like a cushion tyre or arched at the base, the pith
of the invention being that the slots in the rim or in flange wall or wing, or in
both permit of the rubber swelling outwardly in the slots under the weight of a
load and as a means for localizing and fixing the rubber tyre in place without
extraneous fastenings.
By this means, the continued resiliency of the rubber is ensured, it is not
compressed as with the usual beaded flange systems, it need not be cramped into
the rim, nor has any part to be crushed or crowded, the whole of the rubber being
free for compression and expansion.
My flange or flanges may be slightly beaded to prevent the rubber being torn
off or out of the rim by side or what is known as kerb action but said beads play
no part in fixing the rubber in place as by the usual systems.
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Hazelwood Carmont.

page_text: be performed to be particularly described and ascertained in and by the following
statement:-
-
This invention has for object, certain improvements in or relating to resilient
tyres for wheels.
For the purposes of my said invention, I construct a rim of gutter shape or of
angle shape of bar, and employ a side flange plate, the wings of which are provided
with slots at intervals circumferentially or otherwise but preferably long slots
circumferentially, so that the solid parts between the slots form a bite in the
rubber, or find a lodgment between projecting fillets with which the side projecting
base of the rubber is provided.
The rubber may be solid or like a cushion tyre or arched at the base, the pith
of the invention being that the slots in the rim or in flange wall or wing, or in
both permit of the rubber swelling outwardly in the slots under the weight of a
load and as a means for localizing and fixing the rubber tyre in place without
extraneous fastenings.
By this means, the continued resiliency of the rubber is ensured, it is not
compressed as with the usual beaded flange systems, it need not be cramped into
the rim, nor has any part to be crushed or crowded, the whole of the rubber being
free for compression and expansion.
My flange or flanges may be slightly beaded to prevent the rubber being torn
off or out of the rim by side or what is known as kerb action but said beads play
no part in fixing the rubber in place as by the usual systems.
My invention will be clearly understood by reference to the annexed drawings.
Figure 1 perspective elevation of an example of my improved rim of gutter
shape with openings in the side wings as before mentioned.
Figure 2 similar elevation of angled rim with affixable side plate constituting
the second wing, this being shown bolted through the felloe of a wheel and having
slot holes similar to those in the wing of the angled part of the rim..
Figure 3 perspective elevation of a rubber liner with side projections
corresponding to the slots in the wings, and into which said projections or fillets
find a lodgment when the liner is doubled downwardly and forced into the rim.
Figure 4 perspective elevation of tyre complete, if the gutter shaped rim shown
at Figure 1 be employed.
The rubber liner as the resilient body between the side wings or between the
one side wing of the angled rim and the side flange plate being in the foregoing
figures represented as a solid rubber, but said liner may be hollow, as at Figure 5,
to constitute a cushion, or it may, as shown at Figure 6, have a longitudinal arch
shape of groove in its base to allow for compression in a well known manner and
to produce greater resiliency than is possible with a solid liner indicated at
Figures 3 and 4.
A, is the base of the gutter shape of rim. B, B, the side walls or flanges.
C, C, slots or openings therein. The top edges of the side wings may be plainly
rounded off or formed with beaded edges D, D, as is preferable to prevent the
compound rubber or other resilient body being torn, such as from what is known
as kerb action. E, Figure 2, is a side flange plate constituting the second wing
of the rim, this plate being secured by bolts F to the felloe G of a wheel, said
felloe having a lip H for locating the base A of the rim, and protected from
injury by the heads of the bolts, which heads are on the outside of the wheel, and
the tightening nuts on the inside, and although bolts with nuts are shown, long
rivets well headed up will answer the purpose if so desired. I is the rubber
compound or other resilient body as a liner, the tread J of which can be shaped
as shown or otherwise to resist the smashing and shredding action by contact with
the road so often complained of.
K, K, projections or fillets on the sides of the liner I and corresponding in shape
to the slots C of wings B or wing B and flange plate E as to be lodged therein,
as shown at Figure 4, whereby no extraneous fasteners are required, no creeping

page_text: can take place, nor dislocation of any portion of the liner in cases of fracture can
occur.
It is not necessary that the liner projections K should extend to the outer faces
of the side wings B, or of wing B and plate E, the fact of a number of such being
circumferentially arranged on the side walls of the liner I is sufficient for retaining
the liner in position in the rim.
I have for the sake of clearness shown the slots C in the rim walls or wings B
and the projections or fillets K of the resilient body I somewhat close together but
they can be at any desired distance apart, and instead of the slots and fillets being
of rectangular shape, as represented, they may be of any other shape.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. The construction and employment of resilient tyres for wheels of vehicles,
consisting of side wings of gutter shaped rims with openings, of liners with side
projections to fit in said openings, as and for the purpose or purposes hereinbefore
explained and substantially as shown on the annexed drawings.
2. In wheel tyres of the resilient type, an angle shape of bar A, B, affixable
flange plate E as an equivalent for a gutter shape of rim in each of which, openings
are formed for the reception of projections or fillets of a resilient liner as a means
for locating one to the other, and whereby extraneous fastenings are dispensed
with, as herein before set forth and substantially as represented.
The 28th day of April 1898.
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Hazelwood Carmont.