Improvements in and relating to Compressed Air Tyres for Velocipedes and other Vehicles.
Year: 1891

page_text: Date of Application, 23rd July, 1891
Complete Specification Left, 30th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by SOCIETY L. ROCHET & Co., of 74, Rue de la
Folie Regnault, Paris, France, Manufacturers.]
Improvements in and relating to Compressed Air Tyres for
Velocipedes and other 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 to be as follows:-
The present invention relates to compressed air tyres which are chiefly designed
for use in connection with velocipedes.
In the accompanying drawing
Figure 1 is a section showing the tyre applied to a rim of a velocipede wheel.
Figure 2 shows the same tyre applied to a hollow rim.
According to the said invention I combine with a metal rim J of suitable shape,
a band or strip B of india-rubber or other elastic material which is formed by
moulding or otherwise and the sides of which are feather edged so that after the
tyre is placed in position they engage with the side walls of the rim J and of the air
tube or chamber A partly encircled by the said band or strip B in such a manner
that by reason of the expansion imparted by the inflation of the air chamber A,
these sides or ends of the covering band B are strongly compressed against the
side walls of the rim and prevent any displacement of the said tyre.
To ensure, during the placing in position of the tyre, the exact position of the
covering band B in the rim J two half circular grooves G are provided in the side
walls of the latter so as to be capable of receiving two corresponding ribs 6 on the
covering band.
In this arrangement the tightening zones of the covering band B are situated as
shown in the drawing beneath the centre of the india-rubber tube A so that the
maximum of elasticity is obtained, without there being any danger of an accidental
separation of the parts in question by lateral strains.
Dated this 23rd day of July 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Compressed Air Tyres for
Volocipedes and other 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 :-
The present invention relates to compressed air tyres which are chiefly designed
for use in connection with velocipedes.
•
The said invention is illustrated in the accompanying drawing in which
Figure 1 shows a section of one form of tyre applied to an ordinary rim of a
velocipede wheel.
Figure 2 shows the same tyre applied to a hollow rim.
According to the said invention I combine with a metal rim J of suitable shape
a band or strip B of india-rubber or other elastic material which is formed by
moulding or otherwise, the sides of which are feather edged so that after the tyre
Pine Rd 1

page_text: is placed in position they engage with the side walls of the rim J and of the tube
or air chamber partly encircled by the said band or strip B in such a manner, that
by reason of the expansion imparted by the inflation of the air chamber A, these
sides of the covering band B are strongly compressed against the side walls of the
rim and prevent any displacement of the said tyre.
To ensure, during the placing in position of the tyre, the exact position of the
covering band B in the rim J two half circular grooves G are provided in the side
walls of the latter so as to be capable of receiving two corresponding ribs b on the
covering band.
In this arrangement the tightening zones of the covering band B are situated as
shewn in the drawing beneath the centre of the india-rubber tube A so that the
maximum of elasticity is obtained without there being any danger of an accidental
separation of the parts in question by lateral strains.
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 correspondents I declare that what I claim is :-
First. A compressed air tyre B the two edges of which are bevelled so as to
enable the insertion of the same between the sides of the rim J and the said
chamber without causing any perceptible deformation of the said chamber these
two tightening zones preventing any displacement of the tyre B, irrespective of any
strains to which it may be subjected.
Second. A compressed air tyre B provided on each side with a rib b which
serves to keep the said tyre exactly in its place upon the rim J which rim is for
this purpose provided with two semi-circular grooves designed to receive the
said ribs.
Third. A compressed air tyre B fixed by adhesion in the rim J in such a
manner, that, the centre of the air chamber is directly above the tightening zones
of the tyre in the rim J this arrangement enabling the maximum of elasticity of
this tyre to be obtained.
Dated this 20th dex of October 1801
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.