Improvements in Resilient Tyres for Road Vehicles.
Year: 1898

page_text: Improvements in Resilient Tyres for Road Vehicles.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention as communicated
to me by Emile Auguste Dorival, of Paris, in the Republic of France, to be
follows:
15
This invention relates to resilient tyres which have outwardly the appearance
of a U-shaped ring, the sole of which is turned towards the centre or this ring
is screwed on to a wooden felly. In the hollow of the ring and at suitable dis-
tances apart are secured india-rubber blocks surmounted by metallic plates on
which latter rest the extremities of steel shoes having flanges which embrace the
iron sides of the U-shaped ring, and which are equal in number to the number
of india-rubber blocks. These shoes are each attached to the ring, by two bolts.
and have a certain free play for allowing of the movement of the shoes in relation
to the metal ring forming the felly.
When the wheel is running on the road, the contact segment retreats towards
the channel, thus compressing the india-rubber; it may even assume an oblique
position in relation to the central plane of the wheel perpendicular to the axle.
when the wheel is running round curves.
These displacements of the successive contact segments facilitate the movement
of the wheel, prevents tripping, and give a great resiliency equal to that furnished
by pneumatic tyres.
The india-rubber blocks may, it necessary, be replaced by spiral springs suit-
ably arranged.
The shoes, which form the whole periphery of the wheel, are covered with
leather, india-rubber cloth or canvas, or any other suitable material, the edges
of which are fixed laterally below the metallic U-shaped ring.
This covering is then furnished, at the tread or surface of contact with a pro-
tector made of parchment, leather india-rubber cloth or canvas, or metal. In
the last case, the protecting strip should be divided into sections, in order to
adapt itself to the motion of the cover, arising from the deflections of the shoes
at the circumference of the wheel: but it is desirable to form the protector from
a material sufficiently elastic to allow of its being in a single piece: it should be
striated externally in order to prevent the slipping of the wheel along the ground.
The great advantage of this wheel consists in the facility and promptitude with
which repairs can be effected, by replacing the injured segment without touching
the rest of the, wheel.
Dated this 90th day of June 1898

page_text: Improvements in Resilient Tyres for Road Vehicles.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed, as communicated to me by Emile Auguste
Dorival, of Paris, in the Republic of France, to be particularly described and
ascertained in and by the following statement:-
This invention relates to resilient tyres which have outwardly the appearance
of a U-shaped ring, the sole of which is turned towards the centre; or this ring
is screwed on to a wooden felly. In the hollow of the ring and at suitable dis-
tances apart are secured india-rubber blocks surmounted by metallic plates on
which latter rest the extremities of steel shoes having flanges which embrace the
iron sides of the U-shaped ring, and which are equal in number to the number
of india-rubber blocks. These shoes are each attached to the ring, by two bolts,
and have a certain free play for allowing of the movement of the shoes in relation
to the metal ring forming the felly.
When the wheel is running on the road, the contact segment retreats towards
the channel, thus compressing the india-rubber; it may even assume an oblique
position in relation to the central plane of the wheel perpendicular to the axle,
when the wheel is running round curves.
These displacements of the successive contact segments facilitate the movement
of the wheel, prevents tripping, and give a great resiliency equal to that furnished
by pneumatic tyres.
The india-rubber blocks may, if necessary, be replaced by spiral springs suit-
ably arranged.
The shoes, which form the whole periphery of the wheel, are covered with
leather, india-rubber cloth or canvas, or any other suitable material, the edges
of which are fixed laterally below the metallic U-shaped ring.
This covering is then furnished, at the tread or surface of contact with a pro-
tector made of parchment, leather, india-rubber cloth or canvas, or metal. In
the last case, the protecting strip should be divided into sections, in order to
adapt itself to the motion of the cover, arising from the deflections of the shoes
at the circumference of the wheel; but it is desireable to form the protector from
a material sufficiently elastic to allow of its being in a single piece; it should be
striated externally in order to prevent the slipping of the wheel along the ground.
In the accompanying drawings,
Fig. 1 is a central longitudinal section of the tyre and wheel felly.
Figs. 2 and 3 are transverse sections along the lines 1-2, and 3 and 4 respec-
tively, of Fig. 1.
Fig. 4 is a view of the arrangement seen obliquely, and
Fig. is a section of the tyre and felly, showing another form of india-rubber
block.
The resilient tyre forming the subject of this invention consists of a U-shaped
steel tyre A. pinned to the ordinary wooden felly, forming part with which tyre
are lateral bosses a made of phosphor bronze and placed at equal distances apart.
The felly is surrounded by a suitable number of steel segments B fitting loosely
to the bosses a. The extremities of the segments B are in contact with a similar
number of phospher bronze plates P, each plate being attached on the one side
to a segment 13 by means of two rivets, the other side being free and simply
serving as a support for the following segment. Between each plate P and the
bottom of the U-shaped tyre A an india-rubber block C is introduced. The block C

page_text: has running through it a pin c, fixed to the bottom of the steel tyre A, and rests
upon the plate l' being held in position on said plate by means of a pin p there-
upon.
The segments B are placed at equal distances apart from one another, the space
being sufficient for enabling them to come nearer together when they are com-
pressed in consequence of the bending of the india-rubber blocks. They are con-
nected with the felly by pins or bolts 6, inserted in the steel tubes T, the longitu-
dinal section of which is wider on the side nearest the hub. Towards each end
of these tubes is a shoulder or projection (Fig. 2), their extremities being riveted
to the flaps or flanges of the steel tyre A, between the shoulders a on which the
segments B are laterally supported. This arrangement, which braces the tyre A.
makes it very strong, thus allowing of its being very thin throughout and conse-
quently of the employment of very light tyres, especially for the wheels of safety
bicveles.
The position and dimensions of these tubes T are regulated so as to admit
of the segments B taking any necessary position conformably with the compres
sion of the india-rubber blocks, whether resulting simply from the load, the weight
of which is felt normally at the point of contact with the ground (Fig. 3) or from
the combined effects of the load with the torsional strains, when the wheel is run-
ning on a curve as shown in Fig. 4. The whole is enclosed in a cover E, made of
Jeather, india-rubber, canvas sheeting, or any other suitable material, the edges
of which are fixed at close intervals to the felly, by means of screws e.
This outer cover may be advantageously furnished at the tread with a protector
consisting of a strip of parchment, green leather, india-rubber sheeting, or even
overlapping metallic scales.
Figs. 1, 2, 3 and 4 illustrate the employment of an india-rubber block in the
form of a cylindrical log, but blocks of other shapes may be used; for example,
that indicated by the letter 1) in Fig. 5, of T shape, the shoulders of which support
the tubes T T, whilst the shaft or body is in contact with the tyre A, and held by
two pins and p.
In place of the india-rubber blocks C and D spiral springs of suitable strength
and suitably fixed and guided may be substituted.
In case of necessity or according to requirements the felly may be made entirely
of metal, consisting simply of the U-shaped steel tyre A, joined to the hub by
steel wires mounted under tension like the wheels of the ordinary safety bicycles.
The resistance of the india-rubber is determined in such a manner that sufficient
resiliency is always assured at the point of contact; the sectional construction of
the tyre leaves each segment free to assume a suitably oblique position at curves
(Fig. 4) thus allowing duly for play without excessive resistance or slipping.
The principal advantage of the arrangement consists in the facility with which
the tyre can be repaired and adjusted, by simply replacing the damaged segment
with another, without disturbing the rest of the wheel.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
--
1. The constructional arrangement, of a resilient tyre divided into sections.
applicable to any kind of road vehicle or carriage, the principal advantage of
which consists in the facility of replacing a damaged segment by another, without
interfering with the rest of the wheel substantially as herein before described and
illustrated in the accompanying drawings.
2. In a resilient tyre of the kind indicated in the preceding claim, the arrange-
ment for ensuring the resiliency of the sectional tyre by the introduction of india-
rubber blocks substantially as described.
3. In a resilient tyre of the kind indicated in Claim 1 hereof, the employment
of spiral springs for ensuring the resiliency of the sectional tyre substantially
described.
as

page_text: 4. In a resilient tyre of the kind indicated in Claim 1 hereof, the employment
and arrangement of the outer covering and of its shield or protector which may
be striated externally in order to avoid tripping substantially as described.
1 11.
JOLL
1900
F. W. GOLBY,
36, Chancery Lane, London, W.C.,