Improvements in and connected with Tyres for the Wheels of Velocipedes and other Vehicles.
Year: 1891

page_text: Date of Application, 28th Nov., 1891
Complete Specification Left, 26th Aug., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Tyres for the Wheels of
Velocipedes and other Vehicles.
I FRANK THOMAS LIGHTON of 98 Brixton Hill London S.W. Engineer do
hereby declare the nature of this invention to be as follows:-
I employ two flat steel flexible rings (smaller in diameter, than the rim of the
wheel) and to these are rivetted or joined in a suitable manner, narrow strips of
sheet steel, which form two half tubes, inside another, the outer or larger half tube
being fastened or rivetted on the undersides of the aforesaid flexible ring of steel,
at each end the inner half tube being rivetted or fastened to the outer sides of
the flexible steel rings, the outer tube forming a complete circle with inch gaps in
between the sheet steel strips, under these gaps come the inner tube's sheet steel
strips; by so doing the tyre is rendered free from puncture and bursting, after the
aforesaid construction of the whole tyre frame, which forms a circle in its circum-
ference, and three parts of a circle in section of tube; a rubber covering is then
cast over & in between the whole of the framework forming an impervious & air
tight tube when in position upon the rim of the velocipede or carriage; its manner
of holding is the compression of air forcing the free sides of the tube upon the
sloping flanges of the rim & the flexible steel rings being of a diameter fixed
smaller than the diameter of the rim flanges, are consequently unable to pass over
the edges of the aforesaid rim, but in attempting to pass; the rubber covering is
tightened on the rim flanges and an air joint so made.
Dated this 28th day of November 1891
FRANK T. LIGHTON.
Fredk. Walker, M.S.E.,
Engineer, Registered Patent Agent,
11, Furnival Street, Holborn, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Tyres for the Wheels of
Velocipedes and other Vehicles.
I, FRANK THOMAS LIGHTON of 98 Brixton Hill, London, S. W. Engineer 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 certain improvements in tyres for wheels of velocipedes
and like vehicles, and has for its objects the construction of said tyres in such a
manner as to render them non-puncturable, and also to dispense with the inner or
inflation tube.
In order that my invention may be the better understood I have appended the
accompanying sheet of drawings, in which
Figure 1 is a section of a tyre shewing the method of constructing same so as to
render it non puncturable.
Figure 2 is a plan view shewing the manner of arranging the strips of steel
hereinafter described and
Figure 3 is an elevation thereof.
In carrying my invention into effect I employ two flat steel flexible rings, A. A'
smaller in diameter than the outer rim of the wheel to which my invention is to be
[PA |

page_text: applied. A series of strips B B Figures 1 and 2 of thin sheet steel or other metal are
arranged to form two half tubes, the strips forming the inner tube being arranged
so that the edges of the strips above them forming the outer tube may overlap as
shewn by the plan, Figure 2. The outer half tube is rivetted, or otherwise
fastened to the under sides of the rings A A¹ and the inner half tube is similarly
attached to the outer sides of the rings A. A¹. In this manner an elastic metallic
framework is constructed, and indiarubber, or like flexible, resilient material may
be cast, or otherwise caused to cover and interpose between the parts of said
framework, any protective external covering being used if necessary.
The manner in which the tyre according to my invention is retained in position
upon and within the rim of the wheel, is that, when the hollow tyre is inflated, the
internal air pressure causes the rings A A' to be firmly pressed against the sides of
the grooved rim, said rings being of smaller diameter relatively thereto. An air
tight joint is thus secured, and the tyre is held firmly in position."
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.
ه
In a tyre for the wheels of vehicles the combination of a metal elastic frame
work and covering, with a grooved rim, for the purpose of securing air tight joints
and retaining the tyre in position when inflated, substantially as herein described
with reference to the drawings.
Date Dis Toth day of Angus 1032.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.