Improvements in Elastic Tyres for the Wheels of Carriages and the like.
Year: 1897

page_text: Date of Application, 7th Dec., 1897-Accepted, 12th Mar., 1898
Communicated from abroad by JACOB IRGENS, of Bergen, in the Kingdom of Norway,
Carriage Manufacturer.]
Improvements in Elastic Tyres for the Wheels of Carriages and the
like.
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 :-
My invention relates to elastic tyres for carriages and the like and the object of
the invention to construct a tyre mainly consisting of india rubber or other
equivalent elastic matter or composition and which is more durable and cheaper than
tyres hitherto used made of such materials.
To this end my invention consists in the combination with an elastic ring or tyre
of an inner ring of rope which latter is enclosed in the rubber, or other elastic
material forming the main part of the tyre.
In the accompanying drawing is shown a tyre embodying my invention in which
Figure 1 is a cross section of a carriage wheel rim provided with my improved
tyre.
Figure 2 is a cross section through the rope and the elastic tyre, showing how
they are put together, and
Figure 3 a longitudinal section of Figure 1, showing the core in elevation.
As shown the india rubber tyre is provided with a groove B for the rope A, which
may be an ordinary hemp rope. In order that the india rubber may fit tightly about
the rope the tyre can be made of the form shown in section in Figure 2, the india
rubber having in this case to be drawn tight about the rope to be pressed into the
steel rim C, which keeps the tyre clutched between its flanges.
As shown in Figure 3 the joint of the rope is arranged at some distance from the
joint of the india rubber tyre. By this means the advantage is gained, that a tyre
of the above construction is stronger and more durable than a tyre of the usual
construction, the weak point of the tyre,-the joint-being in this case strengthened
by the rope. The manufacture of the india-rubber tyre with rope core is also
cheaper than that of the usual tyres, a considerable quantity of india-rubber being
saved.
The rope core does not materially lessen the elasticity of the tyre, but the
vibrations are effectively diminished, thus making the riding more comfortable. The
described construction is also advantageous for the reason that the. rubber ring is held
more tightly and secure between the steel flanges of the wheel-ring and because the
rope prevents the rubber ring from slackening on the wheel ring.
The rope inlay can be of any suitable form and material and instead of india
rubber any other elastic material or composition may be used.

page_text: Having now particularly described and ascertained the nature of my said 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:-
1. In an elastic tyre for carriage wheels and the like the combination with a ring
of india rubber or other elastic material of a ring of rope which latter is placed in a
groove in the rubber ring, so that it is wholly or for its greater part surrounded by
the rubber.
2. An elastic tyre for carriage wheels and the like consisting of a ring of rubber or
other elastic material or composition surrounding a rope ring which is placed near
the inner circumference of the rubber ring.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.