An Improved Detachable Protector and Slip Preventor for Pneumatic Tyres.
Year: 1894

page_text: Date of Application, 8th Aug., 1854
Complete Specification Left, 7th June, 1895-Accepted, 8th Aug., 1895
PROVISIONAL SPECIFICATION.
An Improved Detachable Protector and Slip Preventor for
Pneumatic Tyres.
We, JAMES HENRY ALBERT Woods, Artisan, of 26, Albert Road, Woolwich,
in the County of Kent, and EDWARD THOMAS WOODS, Artisan, of 24, Albert
Road, Woolwich aforesaid, and W. T. HENLEY'S TELEGRAPH WORKS COMPANY,
LIMITED, of 27, Martin's Lane, Cannon Street, London, E.C. Indiarubber and
Guttapercha Manufacturers, do hereby declare the nature of this invention to be
as follows:-
This invention relates to an improved detachable protector and slip preventor
for pneumatic tyres, and consists essentially in the provision upon both the inner
and outer surfaces of the protector, of preferably V-shaped projections or ribs
formed of indiarubber, whereby to prevent slip both sideways and in the direction
of revolution of the wheel on the ground, and also to prevent slipping or creeping
of the protector both sideways and circularly upon the tyre.
The invention also consists in the mode of attachment to the tyre whereby to
enable it to be readily attached or detached as required.
The protector is made of an endless band or strip of vulcanized indiarubber or
other suitable material having series of V shaped or other projections or extra
thicknesses moulded upon both its inner and outer surfaces, said projections
extending in width over the tread of the tyre, the marginal portions of the band
being elastic so as to stretch under the inflation of the tyre.
The band is of a width and shape in cross-section to adapt it to completely
encircle the tyre when stretched by the inflation of the latter, and in each edge of
the strip is embedded an endless ring of steel or other wire or ribbon so that the
edges of the protector will be caused by the inflation of the tyre, to secure the
protector firmly to the tyre without the use of any cement or lacing.
The V shaped form of the projections is preferred because it affords resistance
to slipping both in the lateral and circular directions and by providing them at
sufficiently close intervals a practically continuous tread is obtained whereby any
jarring sensation is entirely avoided.
Dated this 8th day of August 1894.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
An Improved Detachable Protector and Slip Preventor for
Pneumatic Tyres.
We, JAMES HENRY ALBERT WOODS, Artisan, of 26, Albert Road, Woolwich,
in the County of Kent, and EDWARD THOMAS WOODS, Artisan, of 24, Albert
Road, Woolwich aforesaid, and W. T. HENLEY'S TELEGRAPH WORKS COMPANY,
LIMITED, of 27, Martin's Lane, Cannon Street, London, E.C. Indiarubber and
Guttapercha Manufacturers, do hereby declare the nature of this invention, and in
Trice 71

page_text: what manner the same is to be performed, to be particularly describe and
ascertained in and by the following statement:-
This invention relates to an improved detachable non-slipping jacket to be
applied over the ordinary cover or outer tube of a pneumatic tyre, and consists
essentially in the provision upon its inner surface of obliquely inclined ribs or
projections formed of indiarubber whereby to prevent slipping or creeping both
sideways and circularly upon the inflated tyre. Similar ribs or projections may
also be provided upon the external surface of the jacket to prevent both lateral and
circumferential slip on the ground. Such external ribs would generally be similar
in shape to, and coincide in position with, those on the inner surface of the jacket,
but they may be of diamond or any other shape preferred.
The invention also consists in the mode of attachment to the tyre whereby to
enable it to be readily attached or detached as required.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein
Figure 1 is a cross-section and part perspective view of the jacket in position on
the tyre. Figure 2 is a similar view of the jacket when removed from the tyre.
Figure 3 is an internal face view developed in the flat, and Figure 4 is a similar
external view.
The jacket is made of an endless band or strip of valcanized indiarubber A
having series of V-shaped or other ribs or projections B moulded upon its inner
surface so as to embed themselves in the surface of the inflated tyre and thereby
prevent all creeping of the jacket upon the tyre, whilst the marginal portions a of
the band are made sufliciently thin and elastic to stretch under the inflation of the
tyre. The V-shaped form of the projections B is preferred because it affords
resistance to creeping or slipping both in the lateral and circular directions and
the projections are preferably formed at sufficiently close intervals to overlap
each other in the circumferential direction. They need not, however, be of
perfect V-shape, but may be formed of two oppositely inclined series of ribs
separated by a gap, as shown at B', Figure 3, or they may be of any other
modification of the V-shape.
This endless band A is made of a width to envelope only that part of the inflated
tyre which does not lie within the hollow of the wheel rim, and is of such less width
as to leave a space of about 1th of an inch between its edges and the edges of the
wheel rim. In a canvas pocket formed in each edge of the band is embedded an
endless steel wire strand, formed of a number of fine wires twisted together, the
ends being spliced and brazed so as to form a ring of about th of an inch larger
diameter than the rim of the wheel so that the edges of the jacket will be caused
by the inflation of the tyre to grip the tyre and secure the jacket firmly thereto
without the use of any cement or lacing. In this manner the non-slipping band
may be readily applied to, or removed from, the tyre as required, according to
the condition of the ground or the circumstances under which the machine is
being ridden.
In order to give the jacket the necessary tendency to grip the tyre when inflated,
the jacket is vulcanized in the form shewn in Figure 2, so that its edges have an
inwardly curling tendency which causes them to conform naturally to and to grip
tightly against the sides of the tyre. The outer surface of the jacket is shewu,
in Figure 4, as provided with V-ribs C crossing each other diamond-wise, the one
set of these V-ribs coinciding in position with the ribs B on the inner surface of
the jacket whilst the other set lies across them as indicated by the dotted lines in
Figure 3. In this case also, the ribs may not be perfect V's but may have a
central gap as at (
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
-
1. The herein described detachable non-slipping jacket for pneumatic tyres,

page_text: consisting of an endless band having a roughened inner surface and wired edges,
so as to securely grip the inflated tyre, substantially as specified.
2. The herein described detachable non-slipping jacket for pneumatic tyres,
consisting of an endless band having V-shaped or oppositely inclined ribs formed
on its inner surface and having endless wire cords embedded in its edges, as and for
the purpose specified.
Dated June 5th 1805
A. M. & WM. CLARK,
53 Chancery Lane, London, Chartered Patent Agents.