Improvements in Pneumatic Tyres.
Year: 1898

page_text: Date of Application, 10th Aug., 1898
Complete Specification Left, 10th May, 1899-Accepted, 1st July, 1899
ALFRED ERNEST HUBBARD, 51, Barlborough Street, Monson Road, New Cross,
FREDERICK ROBERT RAND, 45, Maydwell Street, Camberwell, Pneumatic Tyre
Makers, do hereby declare the nature of this invention to be as follows:-
The pneumatic tyre, is made with two pockets, one at each edge of outer cover
and has a flap fixed to protect the tube, on the inside of one edge.
To fasten the tyre there are small slots made in the pockets at each edge nearly
ten inches apart, the tube is then placed in the tyre, and the two edges brought
nearly to touch each other, when a flat steel fork is inserted in the slots about
eleven inches in length and pushed into the pockets, the forks slightly overlapping
each other.
The tyre is adantable to all rims and fixes its self on inflation.
ALFRED ERNEST HUBBARD.
FREDERICK ROBERT RAND.
Improvements in Pneumatic Tyres.
We, ALFRED ERNEST HUBBARD, of 51, Barlborough Street, Monson Road, New
Cross, and FREDERICK ROBERT RAND, of 45, Maydwell Street, Camberwell,
Pneumatic Tyre Makers, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
Our invention relates to improvements in pneumatic tyres, and has for its object
to provide a tyre which may be easily be detached from the wheel rim for repairs.
Our invention consists in holding together the edges of the outer cover round
the inner tube by means of pieces of metal or other suitable stiff material of forked
shape, inserted through slits into pockets formed upon the edges of the cover.
A suitable protecting flap for the inner tube is attached upon the inside to one
of the edges of the cover.
Referring to the accompanying drawings which shew one method of carrying
my invention into effect.
Figure 1 is a view of a portion of the tyre, showing the metal forks in position
holding the edges of the cover together.
Figure 2 is a view of a portion of the tyre in its position upon the wheel rim.
[Price 77

page_text: Figure 3 is a section of Figure 2 on the line a b.
Figures 4 and 5 are respectively elevation and plan of one of the metal forks.
Figure 6 is a plan of the band of fabric which lines the rubber of the outer
cover, showing, the pockets provided with a pair of slits for one of the metal
forks, and the protecting flap attached to one of the edges.
Figure 7 is a section of the same.
The tyre is formed in the usual manner, having an inner tube A with protecting
outer cover B. We prefer to make the cover lining of bias cut canvas or other
contractile fabric. Upon each of the edges of the cover B is formed a pocket C
which is provided with slits 19, D, at-intervals of about 10 inches round the cover.
The slits D upon each of the edges are placed opposite one another, or nearly so,
as shown at Figures 1 and 6, so that the forked metal pieces E may be inserted
into their places in the pockets C as shown in Figure 1. The metal forked pieces
are preferably formed by slitting flat strips of steel, the strips being bent to the
curve of the rim, as shown in Figures 4 and 5. They are of such a a length that
their ends overlap slightly, when in position inside the pockets, as shown in
Figure 1, and they offer great resistance to tilting in relation to one another
that is, becoming parts of the surface of a cone instead of a cylinder. This resistance
gives secure anchorage to the cover and prevents rolling of the tyre upon the
rim. The forks are provided with loops of cord or tape F, F, so that, when it is
desired to gain access to the inner tube,, they may be readily, pulled out of the
pockets after deflation of the tyre. The Hap G attached to one of the edges of the
outer cover forms a protection for the inner tube.
In the drawings, the tyre is shown applied to a Westwood rim, but it is adapted
to all sections of rim, and can be used upon a plain crescent rim with success.
In placing the tyre on the rim the inner tube is placed inside the cover and
the forks E are inserted into the pockets through the slits D. The whole tyre is
then stretched over the edge of the rim, and inflated. The inflation of the tube
causes circumferential contraction of the tyre which aids in securing it upon the
rim. The tyre is very easily detached as it comes freely over the rim edge when
deflated.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. In pneumatic tyres, the method of securing together the edges of the outer
cover by means of metallic or other forks, substantially as described.
2. In pneumatic tyres, an outer cover provided with pockets such as C, having
slits such as D, adapted to receive metal forks such as E, substantially as and for
the purposes described.
3. A pneumatic tyre constructed substantially as set forth and illustrated in
the accompanying drawings.
Doted this 10th la of 1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester, Agents.