Improvements in Wheels for Bicycles or other Vehicles.
Year: 1891

page_text: Date of Application, 3rd Sept., 1891
Complete Specification Left, 28th May, 1892-Accepted, 2nd July, 1892
t
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Bicycles or other Vehicles.
JOHN ALFRED LLOYD Draughtsman and Engraver 4 Kenwood Avenue
Sheffield in the County of Yorkshire do hereby declare the nature of this invention
to be as follows :-
In the bicycle tyres now used the steel part is made to form a groove, generally
semi-circular in section, in which a second tyre made of india rubber is inserted.
In my improved tyre I make three grooves of semi-circular or other sections, the
middle or centre groove is left empty, but the one on either side of the centre one,
is filled with an india rubber tyre in the same way as the bicycle tyres in use at
present time.
The middle groove may be the same size, or larger, or smaller than the side
grooves.
Dated this Second day of September 1891
COMPLETE SPECIFICATION.
Improvements in Wheels for Bicycles or other Vehicles.
I JOHN ALFRED LLOYD of 4 Kenwood Avenue Sheffield Draughtsman and
Engraver 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 in writing, and on reference to the accompanying sheet of
drawings:-
This invention relates to certain improvements in the construction and arrange-
ment of the tires of wheels for bicycles, or other vehicles such as tricycles, go-carts,
or other similar vehicles of a light description.
In order that my said invention, and the mode I adopt in carrying it into
practical effect may be fully understood, I have illustrated it on the accompanying
sheet of explanatory drawings the same being marked with figures and letters of
reference corresponding with those in the following description, like reference
letters indicating like parts in all the figures.
Figure 1, is a side elevation of a bicycle wheel made according to my invention.
Figure 2 is a sectional elevation taken through the centre of Figure 1; and
Figure 3 comprises and shows sectional views of some of the different forms, as
examples, of tires adapted for use according to my invention.
In the bicycle wheel tires now in use the steel part of the tire is made to form a
groove, generally semi-circular in section, in which groove a second or outside tire
made of india rubber or other material is inserted.
According to my invention, in the improved tire a (see Figures 2, and 3) I make
three grooves of semi-circular or other required section. The middle or centre
groove e, is left empty, but the grooves f, one being on each side of the centre
groove, are filled with an india rubber or other elastic or suitable tire b, and fixed,
attached, or cemented in the same way as the bicycle wheel tires at present in use.
The middle or centre groove e, I make either of the same size, or it can be made
larger or smaller than the side grooves f, as may be required. Or the centre
groove can be fluted or corrugated transversely in order to strengthen it.
The spokes c, of the wheel can be fitted and fixed to the central groove e, as
shown at Figures 2 and 3, on the drawings, or they can be fitted and fixed to the
two side grooves f.
dindicator the huch of the l

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, I declare that what I
claim is :-
The general construction and arrangement of the tires of wheels for bicycles or
other vehicles of a light description, in which tires there are three grooves of semi-
circular or other suitable section, and in two of the grooves, such as f, one being
made on either side of the central groove e, is inserted an india rubber or other
tire b, thereby forming two tires on the wheel, the said tires being separated by a
groove such as e, of any required section; all substantially as hereinbefore
described and as illustrated on the accompanying sheet of drawings.
Dated this 27th day of May 1892
BRISTOW HUNT, R.P.A.,
Aldine Chambers, Sheffield, Agent for the Applicant.
BRISTOW HUNT, R.P.A.,
Aldine Chambers, Sheffield, Agent for the Applicant.