An Improved Tyre for the Wheels of Bioyoles, Tricycles, and other Vehicles.
Year: 1895

page_text: Date of Application, 11th May, 1895-Accepted, 22nd June, 1895
COMPLETE SPECIFICATION.
An Improved Tyre for the Wheels of Bioyoles, Tricycles, and
other Vehicles.
I, RICHARD TEMMEL of 224 Kopnicker-trasse, Berlin in the Empire of
Germany, 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..
This improved tyre consists essentially of tooth-shaped pieces of indiarubber or
other suitable material, secured in a suitable manner on the rim of the wheel,
either with their broad sides together and their narrow sides in advance of one
another, or with then biond sides in series close together, or at suitable distances,
and, if desired with suitable connecting pieces, whilst if necessary the parts of the
tyre fastened on the wheel, or in other words, the tyre formed from such parts,
may be provided with a loose covering of suitable material for preventing a lodging
of dirt or foreign matter. By this arrangement there is obtained a very small
unning sui face, and the resilient effect is much greater than with other tyres, even
the pneumatic. The elasticity or resiliency of the elastic material employed, such
as indiarubber on the like, is in fact not only utilized but an angular spring action
of the teeth or parts of the tyre is produced, which remarkably mcreases the
total elasticity o resiliency of the whole tyre This spring action becomes
apparent with all the patterns of teeth, but more particularly with the forms
shown as an example in Figures 6, 9 and 10 These improved tyres have also the
great advantage that in case of damage, or wear, the defective parts may be
repaired by the rider himself by the insertion of reserve material carried with him,
which material suits any periphery, or by replacing the defective teeth by fresh
ones. By this means bicycles are rendered peculiarly suitable for military
purposes because the chance of then becoming defective is reduced to a minimum,
and thereby the objections rightly raised against other tyres are completely
avoided.
Various forms of construction of these teeth-shaped pieces attached in a suitable
manner to the rim, are shown in Figures 1-5 of the accompanying diawings,
whilst. Figures 6 to 12 and 12 show various forms of teeth which may be employed
01 a suitable connection of the separate teeth or parts of the tyre with one
another
A tyre is shown in Figures 1 and 6 in which the teeth are arranged with their
longitudinal axes parallel to the direction of 1ntation of the wheel, in several rows
with the narrow sides in succession, and with the broad sides overlapping or
opposed to one another and standing side by side.
In Figures 2-5 and 8-12 and 12ª the teeth are arranged with then longitudinal
axis at right angles to the duertion of rotation In Figures 2 (and 8) the teeth
are connected by means of a cord. In Figures 3 19 and 10) on the other hand
they are free, that is to say they are not retained on connected by a cord or the
like, in Figues 4 (and 11) the teeth have between them loosely inserted pads,
butlers, rollers or the like, so that the tread or outermost periphery may not only
be uninterrupted, but also on the bending of the teeth they may be supported one
upon the other; in Figures 5 (12 and 121) the teeth have a ring placed round
them on the outside, so that when travelling this ring is in contact with the ground
and the teeth themselves only serve as springs

page_text: The teeth, or parts of the tyre, employed for this arrangement such for instance
as a, Figures 1 to 12, 12 may be made in suitable shapes, regard being paid to the
actual purposes of use or modes of attachment to the rim. This depends more
particularly on whether the tooth is to be attached to the rim parallel to the
direction of rotation, as shown in Figmes 1 and 6, or diagonally or vertically to
the same as in Figures 2-5 and 8-12, 12^ The tooth a may also have a
swallon tail or other shaped foot, which for instance as shown in a', Figure 7, may
be made of another material, such for instance as vulcauite.
In order to diminish the weight, as well as to increase the elasticity, a recess a³,
Figures 9, 12 and 12ª may be made in the tooth a In the tyre shown in Figure 2
formed of the teeth a herembefore described, the teeth are connected by means of
a cord c, or the like, the cord being drawn through holes c', Figure 8, formed in
the teeth For the mutual support of the teeth a fastened on the rim b, Figures 4
and 11, these teeth have at the end a hole h in which pin g of the pad, buffer,
roller or the like f is uscited so that these are connected by means of this buffer
or the like between the teeth a arranged on the unb at intervals and the outer
peuphery is closed. The tooth a in Figure 12 has at the end a recess for instance
semi-circular in form so that a ring or endless cord may be placed over the
teeth a fastened on the rim (Figure 5) so that equally as in Figures 4 and 11 a
closed tyre results In the last mentioned form of construction the wheel only
runs upon the outer ring d.
The fastening of the teeth a on the rim b, Figures 1-12-124, takes place in
any manner suitable to the requirements for instance by means of a suitable
cement
The tyres more particularly shown in Figures 2, 4, 5, 11 12, 124 may also be so
formed that as already mentioned they may be in firm connection with special
parts c, d, f, etcetera which are in loose connection with the teeth a or may be made
in one piece with the teeth a so that the tyre forms a single piece
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
11
An improved tyre for the wheels of bicycles, tricycles and other vehicles,
consisting of a number of separate teeth or pieces of indiaiubber or other suitable
material (a) of suitable shape secured on the in (b) in a suitable dnection or
position side by side or at intervals by means of an adhesivo material suitable for
the requirements, or by menus of cords (c), rings (d), buffers, washers (g) or
the like, which may be either in firm connection with the teeth (a) or made in one
piece therewith, or be loose therefiom and auanged either outside, inside or
between the separate teeth or parts of the tyre (a) for the purpose of mutually
supporting, protecting or better securing the teeth on the rim, or for producing a
closed tyre having a very small running surface, substantially as described and
illustrated.
Dated this 10th day of May 1895
WM. P. THOMPSON & Co.,
Of 6 Loid Street, Liverpool, Agents