Improvements in Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1890

page_text: Date of Application, 29th Apr., 1890
Complete Specification Left 9th Oct. 1890-Accepted 18th Oct. 1890
PROVISIONAL SPECIFICATION.
Improvements in Tyres for the Wheels of Velocipedes and other
Vehicles.
L. HENRY THOMPSON, of No. 86, Isledon Road, in the Parish of St. Mary's Islington,
in the County of Middlesex, Contractor, do hereby declare the nature of this invention
to be as follows:-
This invention consists in improvements in the construction of tyres for the wheels
of velocipedes and other vehicles.
For the purpose of this invention the tyres are composed of a tube of india rubber
or other suitable elastic material filled with hollow or solid balls of like material or
with horse hair, cocca nut fibre, sponge, or other suitable light material.
Tyres constructed as hereinhefore described serve to decrease the vibration of the
machine, whilst, at the same time, they are light, strong, and durable.
Dated this 29th day of April 1890.
VAUGHAN & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Tyres for the Wheels of Velocipedes and other
Vehicles.
, HENRY THOMPSON, of No. SC, Isledon Road, in the Parish of St. Mary's Islington,
in the County of Middlesex, Contractor, 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 improvements in the construction of tyres for the wheels of
velocipedes and other vehicles, and the objects of my invention are, firstly, to obtain a
tyre of the required dimensions and strength, with an expenditure of less material and
therefore of less weight than when the tyre is formed solid, as heretofore, and,
secondly, to obtain an elastic tyre which will embody some, or all, of the advantages
of hollow or pneumatic tyres but without the same liability to he rendered useless
by the escape of the contained air in consequence of the same becoming punctured or
fractured.
For this purpose, I employ a tube of india-rubber or other suitable elastic or flexible
material and fill the same with balls or spheres formed of india-rubber or its equivalent,
and either hollow or solid.
And in order that the said invention may be more clearly understood and readily
carried into effect, I will proceed aided by the accompanying drawings more fully to
describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section of a portion of a tyre constructed according to
my invention.
Figure 2. is a transverse section thereof taken on the line 1.-1. of Figure 1.
Figure 3. is a longitudinal section of a portion of a tyre representing a slight.
modification, and
Figure 4 is a transverse section thereof taken on the line 2.-2. of Figure 3.
In the several Figures, like parts are indicated by similar letters of reference.
a. represents a tyre composed of a tube of india-rubber or other suitable elastic or
flexible material, a represents the bore thereof, and b. represents a number of balls or
[Price 6d.

page_text: spheres formed of india-rubber or its equivalent with which the bore of the tyre is
filled.
In the example given at Figures 1. and 2, the balls or spheres are formed hollow
thus constituting an efficient air cushion somewhat similar to that formed by ordinary
hollow or pneumatic tyres, the air occupying the spaces a² between the balls or
spheres b. also assisting to that end.
The walls of the tube a., and of the hollow balls b. must be formed of such thickness
that they will admit of the necessary compression in the running of the tyre and will
not readily fracture by sudden contact with stones and other objects on the road; in
practice, I have found the proportions given in the accompanying drawings to answer
well when constructing the tube a of india-rubber.
In the example given at Figures 3. and 4, the balls or spheres are formed solid but
elastic and capable of compression in the running of the tyre, the natural elasticity of
the material of which they are composed together with the air contained within the
spaces a² producing the desired cushioning effect.
In both of the examples herein before given, the balls or spheres b. should be of such
diameter that they will readily roll into position in the bore a¹ of the tube a. in order
to facilitate the construction of the tyre.
By these means, I obtain a tyre of the required elasticity and of much greater
durability than ordinary hollow or pneumatic tyres, inasmuch as I do not rely solely
for my cushion upon a filling of air in the tube with the consequent liability to
destruction by a puncture at any part thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
A tyre for the wheels of velocipedes and other vehicles consisting of a tube of india-
rubber or other suitable elastic or flexible material filled with elastic balls or spheres,
substantially as herein shown and described and for the purpose stated.
Dated this 9th day of October 1890.
VAUGHAN & SON,
Agents for the Applicant.