Improvements in Protectors for Pueumatic and other Tyres for Velocipedes and other Wheeled Vehicles.
Year: 1893

page_text: Date of Application, 26th June, 1893
Complete Specification Left, 27th Mar., 1894-Accepted, 28th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Protectors for Pueumatic and other Tyres for
Velocipedes and other Wheeled Vehicles.
We WILLIAM HENRY ROGERS BAKER, Builder, of Lucknow Cottages,
Lytchett Minster, near Poole, in the County of Dorset and PHILIP JOSEPH
HOLLOWAY, Engineer of Lucknow Cottages, Lytchett Minster near Poole in the
County of Dorset do hereby declare the nature of this invention to be as
follows:-
This, our invention consists of the provision of a protection against collapse
arising from puncture, laceration, or bursting of pneumatic tyres of every
description, in addition to the provision of a protection against waste of a large
portion of solid or cushion tyres owing to laceration or wear.
To accomplish these ends, in the case of pneumatic tyres with two or more tubes,
we insert, between the air tube & the cover or covers a protector or shield, made of
a composition of linen & paper pressed together with pressure, or other substance
capable of resisting penetration ordinarily met with, & which at same time will
not materially reduce the resilience of the tyre whilst it also affords protection
against excessive pressure on the air tube & reduces liability to bursting to a
minimum.
In the case of single tube pneumatic tyres & tubes for high pressures we insert,
between the layers of india rubber or other material forming the walls of the tube
a layer of similar composition to that forming the protector of double tubed tyres
aforesaid; by any process adapted for the purpose.
In the case of solid or cushion tyres to prevent the greater portion being thrown
away on account of laceration or wear, we either insert our specially prepared
protector as aforesaid between the surface of the tyre & any cover there may be in
the market, or we provide a cover made of india rubber or other substance with
the special material used for the protector aforesaid fixed therein by any suitable
method as mentioned in the case of single tube tyres or high pressure tubes.
The principle of this is, that when anything likely to penetrate the tyres comes
in contact with the outer tube or single tube tyres it cannot get beyond the special
shield thus protecting the air tube from penetration; or in single tubes it cannot
go through the materials comprising the walls of the tube & thus it prevents
collapse. In the case of tubes for high pressure the special material stiffens &
toughens them & so resists bursting. In the case of covers for solid or cushion
tyres the shield or cover prevents the main portion being unduly worn.
Dated thin 4th 1 of T. 1902
PHILIP JOSEPH HOLLOWAY, Engineer,
WILLIAM HENRY ROGERS BAKER, Builder,
Both of Lucknow Cottages, Lytchett Minster, Poole, Dorset.

page_text: COMPLETE SPECIFICATION.
Improvements in Protectors for Pneumatic and other Tyres for
Velocipedes and other Wheeled Vehicles.
We WILLIAM HENRY ROGERS BAKER and PHILIP JOSEPH HOLLOWAY, of
Lucknow Cottages, Lytchett Minster, Poole, Dorset 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 protectors or shields, for preventing puncture, laceration,
and wear in pneumatic and other tyres, and has for its chief object to provide
protectors or shields, which, whilst incapable of penetration or laceration by
ordinary means, will be sufficiently light and flexible not to materially interfere
with the resiliency of the tyres to which they are applied.
According to our invention, we construct the protectors or shields of a special
composition, consisting of alternate layers of paper in an unfinished condition and
linen or analogous textile fabric combined by hydraulic or other suitable pressure
so as to produce a homogeneous sheet or layer. The said composition would
preferably be manufactured at the paper mills. We find protectors or shields of
this special composition to fulfil the conditions above set forth.
The improved protectors or shields may be in the form of bands for protecting
the tread of the tyre only, or they may be made tubular so as to protect the entire
circumference of the same. In the latter case they will also serve to prevent the
bursting of the tyre from excess of
pressure.
The said bands or tubes may be applied to the tyres they are intended to
protect in any suitable manner; in the case of tyres having a separate air tube,
such as Dunlop, Clincher, Mackintosh, and the like tyres, we may insert them
between the air tube and the outer cover; in single tube pneumatic tyres, such as
the Boothroyd for example, a layer of the special protective composition is inserted
in any suitable manner, during the process of manufacture, between the layers of
material of which the tyre is composed.
Our invention may also be applied with advantage to solid and cushion tyres for
the prevention of laceration and wear therein, the protector being interposed
between the tyre and a convenient outer cover.
In the accompanying drawings:-
Figure 1 is a cross section of a double tube pneumatic tyre having our invention
applied thereto.
Figure 2 is a cross section shewing the application of our invention to a single
tube pneumatic tyre, and,
Figure 3 is a cross section of a cushion tyre having our invention applied
thereto.
In Figure 1, our special composition protector or shield a is shewn interposed
between the air tube and outer cover c, and is represented as protecting the tread
of the tyre only, being in the form of a band.
In Figure 2, the layer of special composition a forming the protector or shield is
shewn in the form of a tube incorporated in the body of the tyre during the
process of manufacture, and consequently serves not only to avoid puncture and
laceration, but also resists the internal pressure, and lessens the risk of the tube
bursting.
.
In Figure 3, the protector or shield a is also represented as of tubular form, and
is interposed between the cushion tyre d and a cover of suitable material c.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we would observe in
conclusion that we do not claim broadly the application of bands or tubes of

page_text: protective material to pneumatic and other tyres, as we are well aware that this
has already been proposed, but we declare that what we claim is :-
1. The application and use to and in combination with a pneumatic or other tyre
of a protector or shield of the special composition herein before described, substan-
tially as specified.
2. In combination, an elastic or yielding tube containing fluid under pressure, and
a tubular protector of the special composition herein before described, surrounding
said tube or incorporated in the material or materials constituting the same,
substantially as and for the purpose specified.
Dated this 27th day of March 1894
E. P. ALEXANDER & SON,
Fels. Chartered Inst. Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C.,
For the Applicants.