Improvements in Rubber Tyres for the Wheels of Vehicles.
Year: 1899

page_text: Date of Application, 14th Nov., 1899-Accepted, 13th Jan., 1900
[Communicated from abroad by FRANK RICHARDSON, of Batavia, in the County
of Genesee, and State of New York, United States of America, Manufacturer.]
Improvements in Rubber Tyres for the Wheels of Vehicles.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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:-
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This invention relates to that class of rubber tyres for vehicle wheels which
are composed of a base on which the tyre rests in the channel of the wheel rim,
and of a tread which projects outwardly from the base, and which may be either
continuous or composed of a circular series of separate projections. These tyres
are sometimes secured in the channel of the wheel rim by fastening wires, which
are arranged in annular grooves formed in the outer side of the base of the tyre
at the junction of the base and the tread. The object of this invention is mainly
to so construct the tyre that the fastening wires are enveloped by the outer por-
tions of the base when the latter has been drawn by the wires into the channel,
and that the base is crowded into the channel in such manner that it fits
tightly against the sides of the channel, thereby preventing sand and other
solid inatter from working under the tyre and impairing the same.
Referring to the accompanying drawings:
Figure 1 is a side elevation, partly in longitudinal section, of a portion of a
wheel rim provided with my improvements. Figure 2 is a horizontal longitu-
dinal section, on-line A A, Figure 1. Figure 3 is a cross section of the tyre,
showing the latter before it is fastened to the wheel rim. Figure 4 is a cross
section showing the tyre secured in the channelled rim. Figure 5 is a side eleva-
tion, partly in longitudinal section, showing this invention applied to a tyre
which has its tread composed of a circular series of projections. Figure 6 is a
plan, or face, view of this construction. Figures 7 and 8 are cross sections, on
fines B-B and C-C, Figure 5, respectively. Figure 9 is a horizontal sec-
tion through the coupling block which connects the ends of the fastening wires
in this construction. Figure 10 is a perspective view of this coupling block.
Like numerals of reference refer to like parts in the several figures.
1 represents the wooden felloe of a vehicle wheel, and 2 the channelled rim
of iron or steel which is applied to the outer side of the felloe, 3 represents the
rubber tyre which is arranged in the channel of the rim and which consists of
a base 4 and a tread 5. The latter is somewhat narrower than the base and
may be continuous, as shown in Figures 1 and 2, or composed of a circular series
of projections 6, as shown in Figures 5 to 8.
The base 4 has inwardly tapering sides, which are designed to fit snugly
between the inwardly converging sides of the channelled rim. The base is
1

page_text: provided at the outer corners of its sides with extensions, ears or lips 7, which
project laterally upwardly and inwardly, having approximately a cross section
of hook shape turned with its free end upwardly and inwardly, as represented
in Figure 3. The groove 8 between the inner side of each lip 7, and the side of
the tread, receives the fastening wire or rod 9 which encircles the base and
is drawn tightly against the same and secured after the tyre has been placed in
the channel of the rim. Before the tyre is fully inserted into the channel
the side lip 7 projects outwardly beyond the side flanges of the channel. The
fastening wires or rods are now placed in the grooves between the lips and the
sides of the tread, and their meeting ends, are drawn tightly together by suit-
able appliances, for instance screw clamps, and are then secured together. The
pressure of the wires or rods upon the base of the tyre draws the base against
the bottom of the channel. In being so drawn down into the channel the side
lips are crowded into the channel and are also closed over the wires, as repre-
sented in Figure 4. This causes an exceedingly tight fit of the base between
the side flanges of the channelled rim, which renders it impossible for sand or
the like to work under the tyre, and also protects the wires or rods.
The meeting ends 10 of each fastening wire or rod can be secured together
in any suitable manner. A simple and durable connection can be made, as
indicated in Figures 1 and 2, by lapping the meeting ends over each other and
brazing the ends together.
The base of the tyre is preferably provided in its under side with a. longitu-
dinal central groove 11 to increase the resiliency of the tyre.
In the construction represented in Figures 5 to 10, in which the tread of the
tyre is non-continuous, or composed of projections, the meeting ends of the fas-
tening wires or rods can be connected by a coupling block 12 which extends
across the base of the tyre in the space between two of the tread projections and
receives both ends of both wires or rods. This coupling block can be constructed
in various ways. The block shown in the drawings is provided in each end with
a groove 13 and with two sockets 14 which extend inwardly from the groove and
receive the inwardly bent ends 15 of the wire or rod. The coupling block is
secured to the wheel by a bolt 16 which passes through the block, the base of
the tyre, the rim and the felloe, as shown in Figure 7.
Sometimes it is desirable to clamp the wires or rods down to the base of the
tyre and to the wheel at additional points besides that at which the ends of each
wire are coupled together. In such cases a transverse fish plate or clamping
plate 17, Figures 5 and 6, is arranged at the desired point in the space between
two of the tread projections and drawn down on the wires or rods and on the
base of the tyre by a bolt 18 passing through the plate, the base of the tyre the
rim and the felloe.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
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1. The combination with a channelled wheel rim having inwardly converging
bevelled sides, of a solid clastic tyre composed of a base portion which is seated
between the bevelled sides of the channel and a tread portion which is narrower
than the base portion, said tyre being provided on each side, at the junction
of the base portion and tread, with a circumferential groove which is located
within the sides of the wheel rim and with a circumferential lip which projects
from the base portion outwardly beyond said groove, and which, when unres-d
trained, projects laterally beyond the side of the channel, and fastening wires
or rods which are arranged in said grooves behind said lips and which are covered
by the outer portions of said lips when the base portion of the tyre and its lips
have been drawn into the channelled rim.
2. The combination with a vehicle wheel and its channelled rim, of an elastic 5
tyre, composed of a base, seated in said rim, and a projecting tread, circumfer-

page_text: ential fastening wires or rods bearing on the base of said tyre on opposite sides
of the tread, and a transverse coupling block which is arranged across the tyre
and connects the ends of both wires or rods on opposite sides of the tread.
Dated this 14th day of November 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.