Improvements in and relating to Pneumatic Tyred Wheels.
Year: 1893

page_text: Date of Application, 9th Mar., 1893
Complete Specification Left, 9th Jan., 1894-Accepted, 10th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pneumatic Tyred Wheels.
I, WALTER HENRY COCKS, of 4 Murrey Road, Brentford, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improved method of attaching the covers or jackets
of pneumatic tyres to wheel rims, and it has for its object facilitating the detach-
ment of the cover from the wheel rim and the re-attachment thereto in case of the
necessity arising for removing the air tube in case of puncture or other damage.
According to my invention I form the cover or jacket of rubber reinforced with
canvas in the ordinary manner, and I form along each edge of the cover a series of
lappets so arranged that those on one side of the cover interlap with those on the
other side thereof. On each of these lappets is fixed a hook or its equivalent, the
Said lappets and the adjacent faces of the cover being reinforced with canvas or
other material. In the rim are provided a series of holes or slots for the hooks or
their equivalents on the lappets on the edges of the cover to engage with, the said
holes or slots being placed in a zigzag line so that the hooks or their equivalents
on the lappets on one edge overlap those of the lappets on the other edge of the
cover.
As a modification the hooks or their equivalents on the lappets on the edges of
the cover may engage with the edges of the rim or with internal flanges in the
rim provided for the purpose.
As a further modification eyelet holes or slots may
be formed in the lappets on the edges of the cover, and hooks or studs be attached
to the rim.
By this construction the entire strain on the cover is brought to the centre of the
rim owing to the overlapping of the lappets on the edges of the cover.
Dated thie 0th day of March 1803
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Pneumatic Tyred Wheels.
I, WALTER HENRY COCKS, of 4 Murrey Road, Brentford, in the County of
Middlesex, 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 :-
My invention relates to an improved method of attaching the covers or jackets
of pneumatic tyres to wheel rims, and it has for its object securing the cover of the
tyre to the wheel rim in a more efficient manner than at present obtains and
facilitating the detachment of the cover from the wheel rim and the reattachment
thereto in case of the necessity arising for removing the air tube.
I attain this end in the manner shown by the accompanying drawing, in
which :-
Figure 1 is a view in transverse section of my improved tyre.

page_text: Figure 3 is a view in transverse section showing a method of reinforcing the
scolloped edges of the cover, and
Figures 4 and 5 are views in transverse section showing other forms my invention
may assume.
Throughout the views similar parts are marked with like letters of reference.
The cover or jacket A of the tyre is made of rubber reinforced with canvas in
the ordinary manner, and the edges are scolloped, or on each edge are formed or
fixed a series of lappets, so arranged that those on one side of the cover interlap
with those on the other side thereof. On each of these scollops or lappets a, a, etc.
is fixed a book B or its equivalent, the said scollops or lappets and the adjacent
faces of the cover being reinforced with canvas or other material to preserve the
shape of the tyre.
In the rim C which may be either of the hollow or solid type are a series of
holes or slots c for the hooks B or their equivalents on the scollops or lappets on
the edges of the cover A to engage with, the said holes or slots being placed in a
zigzag or double line so that the hooks or their equivalents on the scollops or
lappets on one edge of the cover interlap with those on the scollops or lappets on
the other edge of the cover, and so that the scollops or lappets overlap the edges
of the cover.
As a modification the hooks B or their equivalents on the scollops or lappets a, a,
etc. on the edges of the cover A may engage either with the edges of the rim C or
with internal flanges in the rim. These flanges are best provided by fixing a
second or false rim C with turned up edges c', c¹, on the bottom of the groove of
the rim C as shown by Figure 4.
As a further modification eyelet holes or slots may be formed in the scollops or
lappets on the edges of the cover and hooks or studs be attached to the wheel
rim.
By this construction the entire strain on the cover is brought to the centre of
the wheel rim owing to the interlapping of the scollops or lappets on the edges of
the cover, and the rim is so braced up that spreading is entirely prevented.
I wish it to be particularly understood that I do not limit myself to the precise
details of construction herein before described and illustrated by the accompanying
drawing, but that I hold myself at liberty to make such changes and alterations as
fairly fall within the spirit and scope of my invention.
I am aware that divided covers having scolloped edges have already been used
for pneumatic tyres and I do not therefore claim such broadly as my invention,
but
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 :-
1. The improvements in and relating to pneumatic tyred wheels substantially as
herein before described and illustrated by the accompanying drawing.
2. A cover for a pneumatic tyre having divided edges on each of which are
formed scollops or lappets, those on one edge being adapted to interlap with those
on the other edge, the said scollops or lappets carrying hooks, studs, or their
equivalents, as and for the purpose set forth.
3. In a pueumatic tyred wheel, the combination of a divided cover having
scollops or lappets on each edge, those on one edge being arranged and adapted to
interlap with those on the other edge, of hooks or studs fixed on or attached to the
said scollops or lappets, and of a wheel rim having two rows of holes for the hooks
or studs on the scollops or lappets on the edges of the cover to engage with, those
on one edge of the cover engaging with the holes near the opposite side of the wheel
rim and vice versa, as and for the purpose set forth.
4. In a pneumatic tyred wheel, the combination of a divided cover having
scollops or lappets on each edge, those on one edge being arranged and adapted to
interlap with those on the other edge, of hooks or studs fixed on or attached to the

page_text: said scollops or lappets, and of a wheel rim having two flanges for the hooks or
studs on the scollops or lappets on the edges of the cover to engage with, those on
one edge of the cover engaging with the flange near the opposite side of the wheel
rim and vice versa, as and for the purpose set forth.
5. In a pneumatic tyred wheel the cover of the tyre of which is detachable from
the wheel rim, crossing the edges of the said cover before they are attached or
secured to the wheel rim, as and for the purpose set forth.
Dated this 9th day of January 1891
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.