Improvements in Non-slipping Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 23rd Sept., 1897
Complete Specification Loft 23rd June 1000 Accented
22nd lube 1000
Improvements in Non-slipping Pneumatic Tyres.
I, HENRY EDMOND WALTER, Electrical Engineer, of 53, Victoria Street, S.W.,
do hereby declare the nature of this invention to be as follows:-
According to this invention I mount around the circumference of a pneumatic
tyre and on either side of it a series of small discs or sharp edged wheels either
circular or star shaped or of other form.
The discs or wheels may be mounted in pairs upon pins fixed across the outer
circumference of a pneumatic tyre one at each end of the pin so that they come
one on either side of the tyre..
The pins may be straight and they may be secured to a leather belt which
extends all around the exterior circumference of the tyre. Or the pins upon
which the two discs or wheels turn may be in a line and connected with one
another by a horse shoe or U shaped wire connecting piece which is secured to the
leather belt.
Or in place of a number of such pins being attached at distances apart from one
another to one leather band which extends all around the outer circumference of
the tyre they may each be secured to a separate leather which can be passed
crosswise around any portion of the tyre and across the back of the metal rim
of the wheel and be hooked over metal pins which extend radially inwards from
the back of the metal rim. Or instead of these pins projecting, from the back of
the metal rim they may project from separate plates which rest against the back
of the rim and which are held in place by their ends being notched for the end of
one or other of the spokes of the wheel to pass through the notch. Pins so carried
at the back of the metal rim of the wheel can be used for retaining leather belts or
the like which extend all around the circumference of the wheel when such belts
are formed with side straps extending from them to hook over the pins. Similarly
also if as described in my Provisional Specification No. 1628897 the horse shoe
or U shaped wires are formed with spikes at their ends instead of cutting discs
or wheels such horse shoe or U shaped wires may each be secured separately to
narrow straps fixed at intervals around the tyre and rim instead of their all
being secured to one band which passes around the entire circumference of the
inflated tyre.
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1007
Improvements in Non-slipping Pneumatic-Tyreś.
I, HENRY EDMOND WALTER, Electrical Engineer, of 53, Victoria Street, S. W.,
do hereby declare the nature of this invention and in what manner the same is
[Price 8d.]

page_text: .
to be performed to be particularly described and ascertained in and by the follow-
ing statement:-
In order to prevent the wheels of bicycles and the like from slipping sidewise
on slippery roads I according to this invention mount around the circumference
of a pneumatic tyre and on either side of it a series of small discs or sharp edged
wheels either circular or star shaped or of other form.
The discs or wheels may be mounted in pairs upon pins fixed across the outer
circumference of a pneumatic tyre one at each end of the pin so that they come
one on either side of the tyre and as the wheel rolls over the ground they are in
succession brought down onto and more or less cut into it and prevent sideway
slip.
The pins may be straight and they may be secured to a leather belt which
extends all around the exterior circumference of the tyre. Or the pins upon which
the two dises or wheels turn may be in a line and connected with one another
by a horse shoe or U shaped wire connecting piece which is secured to the leather
belt.
Or in place of a number of such pins being attached at distances apart from one
another to one leather band which extends all around the outer circumference
of the tyre they may each be secured to separate leather straps which can be
passed crosswise around any portion of the tyre and across the back of the metal
rim of the wheel and be hooked over metal pins which extend radially inwards
from the back of the metal rim. Or instead of these pins projecting from the
back of the metal rim they may project from separate plates which rest against
the back of the rim and which are held in place by their ends being notched for
the end of one or other of the spokes of the wheel to pass through the notch.
Similarly also if as described in the Specification of my Patent No. 1628897
the horse shoe or U shaped wires are formed with spikes at their ends instead of
cutting discs or wheels such horse shoe or U shaped wires may each be secured
separately to narrow straps fixed at intervals around the tyre and rim instead of
all being secured to one band which passes around the entire circumference of the
inflated tyre.
Figures 1 and 2 of the drawings annexed shew the construction which I prefer.
Figure 1 is a cross section through a non-slipping pneumatic tyre formed in
the above manner.
Figure 2 is a side elevation of a portion of the tyre together with portions of
some of the spokes. Figures 3 and 4 shew a modified way of carrying pins II..
A is the metal rim of the wheel, B the spokes and C the hollow inflatable tyre.
DD are the small sharp edged dises mounted in pairs on the ends of pins E which
are held across the outer circumference of the inflatable tyre at distances apart
from one another. The pins E near each of their ends have metal plates E¹
secured to them. The upper part of the central part of each plate E¹ is pin
jointed to another metal plate F and to each plate F is secured a short leather
strap G.
The upper part of the two outer portions of each plate E¹ are as shewn bent
downwards so as to come in front of the outer face of the discs D and form guards
to keep any material from being caught in the wheels. F* are leather pads
around the plates F. HH are pins extending from the back of the metal rim A
the leather straps G hook on to these pins and so the pins E are held in place
across the outer circumference of the tyre.
Any suitable catch may be employed_for_ restraining the leather straps from
springing off from the ends of the pins H. In the drawings I have shewn a pair
of lock nuts I screwed on to the ends of the pins to attain this object.
In place of the pins H being fast with the metal rim A of the wheel they might
as shewn be carried by separate plates K which fit on to the back of this rim and
which are of a length to lie between two of the spokes.
Figure 5 shews how U shaped wires formed with spikes at their ends as described
in my former patént hereinbefore mentioned may each be carried by a separate

page_text: band instead of all of them being secured to one band which passes around the
entire circumference of the inflated tyre.
In motor cars where the pneumatic tyre is of larger size one series of sharp
edged discs may be used. A spherical shield may be let into the centre of the
tread of the tyre, and a disc or discs may be mounted on a rod running through the
shield.
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:
1. A pneumatic tyre having around its circumference a series of discs or sharp
edged wheels at distances apart from one another to more or less cut into the
ground and prevent sideway slip.
2. A pneumatic tyre having around its circumference and on either side of it
a series of discs or sharp edged wheels at distances apart from one another to more
or less cut into the ground and prevent sideway slip.,
3. The combination of the metal rim A the inflatable tyre C the pins E having
sharp edged dises or wheels 1) mounted on their ends, the straps G secured to the
pins and passing around the tyre and the pins H projecting from the back of
the metal rim A for the straps to hook over substantially as described.
4. The pins H carried by separate plates K which fit to the back of the metal
rim of the wheel and are of a length to lie between and be caught by two of the
spokes substantially as described.
5. The arrangement of U shaped wires formed with spikes at their ends each
secured to a separate narrow strap which can be fixed around a pneumatic tyre sub-
stantially as described.
Dated this 23rd day of June 1898