Improvements in Elastic Tyres for Velocipedes and like Vehicles.
Year: 1899

page_text: Date of Application, 27th July, 1899-Accepted, 7th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Elastic Tyres for Velocipedes and like Vehicles.
I, AUGUST SEVERIN, of Bünde, Westphalia, in the German Empire, Merchant,
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 fol-
lowing statement:-
This invention relates to improvements in tyres for velocipedes and like
vehicles and is intended to provide a tyre which shall possess all the advantages
of a pneumatic tyre, at the same time overcoming the objections to this class
of tyre due to puncturing &c. It is well known that even when rubber of good
quality is used in the manufacture of pneumatic tyres, they are not proof against
puncture, and the rider can never feel quite safe on this account, and usually
prefers therefore to carry a repair outfit and inflating pump.
By my invention there is complete immunity from trouble due to puncturing
of the tyre, and in ordinary riding no tools need be carried for repairing
same.
In carrying out my invention, I may provide a flexible inner lining of metal
or other suitable material which may be in the form of a plain strip curved into
the form of a tube with its two edges overlapping, its ends telescoping, or I may
provide a spiral shaped piece, an outer covering of rubber of other suitable
imaterial being provided in each case.
In order that my invention may be more clearly understood, I have attached
hereto a sheet of drawings, on which
Figure 1 shows a cross section of my tyre,
Figure 2 a view of the flexible inner tube or lining, and
Figures 3 and 4 show a cross section and longitudinal section respectively
of another form of my tyre.
Referring to the said drawings, a shows the spring steel hoop or lining with
its edges overlapping as at a¹ a² (see Figure 1) so that when pressure is brought
on the tyre at right angles or when an obstruction is met, said edges may slide
over one another, thus preventing or reducing the shock or vibration. The
hoop or lining a may be completely surrounded by the soft and flexible cover
of rubber or other suitable material. The ends of the plate a may also be made
to overlap or to telescope one into the other as shown at a and a, the tyre thus
"giving" in the direction of its length as well as in the direction of its width.
may construct a still more flexible tyre by providing a spiral shaped piece or
coil a inside the cover b (see Figures 3 and 4). In this form the pressure will
be received in turn by each consecutive coil, thus distributing the pressure
to better advantage than in the first form. In each case the rim is represented
by c, into which the inner flexible portion is laid after being encased by the
cover b.
my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1 The improvements in turas for valaninades and like schielan

page_text: a spring steel hoop or lining a in combination with a soft and flexible cover or
casing substantially as described with reference to the accompanying drawings.
2. The improvements in tyres for velocipedes and like vehicles consisting of
a spiral hoop or lining a in combination with a soft and flexible cover or casing
substantially as described with reference to the accompanying drawings.
day of July 1899.
For the Applicant,
STANLEY, POPPLEWELL & Co.,
61 & 62, Chancery Lane,
(7 & 8, Southampton Buildings,) London, W.C.,
Chartered Patent Agents.
Dated this 26th day of July 1899.
For the Applicant,
STANLEY, POPPLEWELL & Co.,
61 & 62, Chancery Lane,
(7 & 8, Southampton Buildings,) London, W.C.,
Chartered Patent Agents.