An Improved Protective Device for Wheel Tyres of Elastic Material,
Year: 1896

page_text: Date of Application, 28th Aug., 1893-Accepted, 23rd Jan., 1897
COMPLETE SPECIFICATION.
An Improved Protective Device for Wheel Tyres of Elastic
Material,
I, ERICH LISKOW, of Lazarethstrasse, Pasewalk, in the Empire of Germany,
Mercbaut, 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 :-
This invention relates to a protective device for wheel tyres of elastic material
and especially of rubber and the like, for vehicles of all kinds, and it is especially.
suitable for the tyres of wheels of cycles, carriages etc. This protective device is
slipped over the tyre when the wheel is not in use and has for its main object to
protect the tyre from damage and the action of the weather. The device also
prevents all forward motion of the wheel and thus affords complete security against
theft of cycles.
The accompanying drawings illustrate some arrangements for carrying out this
invention.
Fig. 1 showing the device applied by way of example to a cycle wheel.
Fig. 2 is a cross section thereof.
Fig. 3 is a longitudinal section of one arrangement, whilst Fig. 4 is a longitudinal
sertion of another modification.
Fig. 5 is a cross section of the device applied to an existing wheel.
Fig. 6 shows the mode of connection of the cases, and Fig. 7 shows one
construction of the device in its collapsel or folded state.
Figs. 8 and 9 illustrate a form of construction of the locking device.
Throughout the views similar parts are denoted by like letters of reference.
The invention consists essentially of a number of cases a, formed of thin steel
sheet or similar material which are made of a shape corresponding to the tyre
cover b. In new cycle wheels the rim e may be provided with special grooves d'in
which take the correspondingly bent ends of the open cases, thereby producing a
secure and efficient protective device.
The construction shown by Figure is specially adapted for application
to existing wheels as the two ends of the elastic or springy protective device fit
well against the plain rim and render the use of the grooves unnecessary.
In the construction shown by Fig. 3 the ends of the cases a are beaded over as
at a', a so that the several cases hold and engage with one another in hook-fashion:
This forin of construction is also shown in Fig. 1 on the front wheel in its opened
out condition, and on the rear wheel in its folded or collapsed state. It will be seon
that the several cases are firmly held one to the other by means of the beads a¹ a²
and also to the rim of the cycle wheel by the beading e when the two ends of two
cases are firmly attached to each other by a locking device, whilst, in addition, for
he sake of security, a uumber of locking devices are placed over the rim of the
vhcel in such a manner as to render it impossible for the two ends of the protective
levice to be pressed down. Thus for example turn-buttons may be pivotted on
he rim in such a manner that when they are situated transversely they press
gainst the protective device, and when situated lengthways, the latter is released.
Fig. 6 illustrates a form of construction of the locking device. To one case a there
s fastened a hinged arm o, provided with an eye on its free end with which the
olt of a locks provided at a corresponding place on the adjacent case engages.
The connection is thus effected by simply locking the lock.

page_text: When the cycle is in use, the locking device is undone and the spring cases can
be readily slipped into one another. When the device is to be carried fastened to
the cycle, there may be provided in front of the brake fa part 4 which is adjustable
on the part g of the frame, and which after the device has been folded together can
be raised by means of the set screws iso that the device is then no longer a
hindrance to the motion of the cycle. The part à can be conuected either to the
outer or to the inner case.
The protective device for use on the hind wheel may be advantageously connected
with the rear mud guard K by means of straps m, m, and, when in its collapsed
state assumes the position shown in Fig. 1. When it is desired to slip the device
over the tyre cover the straps m m are undone. The inner case is then fastened to
the rim of the wheel. When this has beon done the wheel is caused to revolve..
and the apparatus will thereby open out and bear upon the wheel and be sprung
into position. The two ends are then connected together by any suitable locking
device such as is shown by Figure 6. The protective device can be applied to and
turned down upon the front wheel in a similar manner.
As a modification the several cases a may be connected together by means of
bingos as shown by Figure 4. Those cases are pressed upon the rim and boar
with their ends against the smooth rim, or they take with their beadings into the
grooves d of the rim. If now the two last cases are now fastoned together by
means of a locking device, then in this arrangement also the cases will be firmly
fastened together and to the rim.
Fig. 7 illustrates a modification in which the several cases are made of such a
length that three cases are sufficient to constitute a protective device. These
three cases are slipped one into the other when not in use and then form a protective
mud-guard as shown.
This invention thus provides the tyre cover not only with an effective protection
against the weather and injury of all kinds, but it also, when opened out, prevents
the wheels from revolving and thus acts as an efficient means against the theft of
the cycle.
For the purpose of connecting the two last cases together, any suitable safety.
lock may be employed so as to render it impossible for the device to be opened or
undone without a key.
As the whole device is made of thin steel sheet or similar strong elastic material
it can easily be sprung into the rim and it adds but a very small extra weight to
the cycle. This device can be applied to all kinds of oycles and is comparatively
cheap to make.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare what I
claim is :-
1. A protective device for wheel tyres of elastic material of all kinds, consisting
essentially of cases of elastic material such as sheet steel and the like which are so
mounted and arranged that when the vehicle is in use the cases can be slipped one
into the other and removed from the tyre of the wheel in such a manner that they
occupy the smallest possible space on the vehicle and can therefore be conveniently
carried about in travelling, and when the vehiclo is not in use they can be unfolded
or drawn out to cover the tyre and made to be fixed to the wheel rim as and for
the purpose set forth.
2. In the protective apparatus for wheel tyres of elastic material of all kinds as
specified in the preceding claim, a form of construction in which the several cases
are provided with beadings such as e and a' a' the former of which engage in corre-
sponding grooves d of the rim e whilst the latter a' a' engage in corresponding
beadings of next adjacent case for the purpose of effecting a secure connection one
with the other and also with the rim when the protective device is opened out as
Bet forth.
3. In the protective device for wheel tyres of, elastic material of all kinds as

page_text: specified in Claim 1. the arrangement in which the several cases a are connected at.
their upper ends by means of hinges (see Figure 4) for the purpose of providing
an efficient protection for the rubber covers without the necessity of employing
beadings such as a' a' on the cases as set forth.
4. In the protective device for wheel tyres of elastic material of all kinds
specified in Claim 1, a form of construction in which the beading e is dispensed
with, and the cases a bear flat against the rim up to the spokes of the wheel for the
purpose of enabling the device to be conveniently applied to existing wheels as set.
forth.
Dated this 20th day of
1000
ROBERT E. PHILLIPS, A.M.I.C.E., M.I.M.E.,
Consulting Engineer and Patent Agent,
70 Chancery Lane, London, W.C., Associate Agent.