Improvements in the Manufacture of Grooved Metal Tyres for Wheels.
Year: 1888

page_text: Date of Application, 3rd July, 1888
Complete Specification Left. 29th Mar., 1389
Complete Specification Accepted, 25th May, 1889
PROVISIONAL DEVIATIVA
Improvements in the Manufacture of Grooved Metal Tyres for
Wheels.
JOSEPH SHAW 2 Wilson Street Stockport road Manchester in the County of
Lancaster Carriage Builder I do hereby declare the nature of this invention to be as
follows:
The object of my invention is to manufacture, iron, steel or other metal Tyres (for
carriage wheels) of an under cut or grooved section for the purpose of securing
bands or strips of india rubber or other elastic or compressible material for which
I had granted to me Letters Patent dated September 3rd 1886 No. 11204.
I first roll a section of channel with the sides thrown outwards to clear the rolls
the lower part of sides next the base forming the shape required and with the base
straight or flat. I then pass the same through a pair of rolls with a recess or collar
as the case may be on one of them to form a guide to them and has attached to the
frame on which the rolls are fixed a die at a short distance from the rolls such die
made the shape of the required section with the face of die or plate next the rolls
opened out a little to give a lead to the bar on channel passing through under or
above which I have another single roll bearing on the base of the channel to assist
the passage through the die and if necessary I would attach a drag to catch the end
of bar or channel so passing through to assist the speed of rolling. It will now be
obvious that the tyre so passing through the die will by this method be made to the
exact shape or section required.
I also claim another method of turning over the top edges of channel to form the
exact shape required.
Having rollen the section of channel with the sides outward as in the first part of
my invention I then pass them through a finishing hole or rolls with a recess in to
suit the section required to force the sides over and inwards keeping the base straight
or flat and thus forming the section required.
Having manufactured the required section I then bend them to suit the carriage
wheels in circumferance in the ordinary manner and having welded them with tools

page_text: made the shape required by the channel I proceed to shrink them on the wheels in
the ordinary manner and living secured them with rivetts are now ready for the
insertion of indiarubler or other clastic material.
Doind this Sanand L. 1990
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Grooved Metal Tyres for
Wheels.
1 JOSEPH SHAW of 2 Wilson Street. Stockport Road, Manchester, in the County
of Lancaster, Coach Builder, do hereby declare the nature of this Invention and
in what manner the same is to be performed to be particularly described and
ascertamed in and by the following statement and accompanying drawings :-
:-
My said Invention relates to the manufacture of iron steel or other metallic
wheel tyres of an undercut or grooved section and fitted to receive rings, strips,
hands or treads of rubber or other suitable elastic material such a tyre for example
as that for which I have obtained Her Majesty's Letters Patent No. 11204 of the
year 1886. According to my invention 1 take iron or steel which has been rolled
to a channel or trough section the sides being thrown outwards so as to clear the
rollers in my apparatus. I then pass this section through another pair of rollers
which force or draw the section through a dio placed at a short distance from the
rollers and thus finish the section to the exact shape required. I may or may not
employ additional drawing rollers to assist in pulling the section through tho die.
To render my invention perfectly clear will now proceed to describe it more
particularly with reference to the annexed sheet of drawings.
Fig. 1 is a side elevation of an apparatus suitable for carrying my invention into
effect. Fig. 2 is a view at the delivery end. Fig. 3 is a section of the rollers and
die. Fig. 4 is a full size view of the die occupied by a section of metallic tyre.
C
In the drawings the rollers and other parts of the apparatus are supported upon
and between side Tramos a held together by suitable stays. The axles of the rollers b
are carried in bearing blocks which are fitted in gaps in the side frames a. The a
top roller is adjustable by means of the screws d." The rollers are driven by a
spur wheel e fixed on the axle of the top roller and gearing with a driving pinion
fixed to the shaft g. The shaft g may be driven by any suitable menus. Immediately
behind the rollers b. 6 is situated the shaping die the shape of which is illustrated
full size at Fig. 4. Beneath the die is a supporting roller i which holds the section 8

page_text: in its proper place in the die. The die is supported by the brackets k. In using
my apparatus I take iron or steel of a channel section similar to that shown at Fig. 5
and I pass the same through the rolls b. b as indicated by the dotted lines in Fig. 3.
The top roll & is turned with a collar which nips the section against the bottom
roller and carries it forward in the direction of the arrow. The die is made bell-
mouthed at the side next to the rollers b. b so that as the channel iron or steel is
forced through the die the sides are gradually forced in and bent over until when the
section issues from the die at the delivery side shown in Fig. 4 it has assumed the
shape indicated which is the finished form of the section. I might arrange drawing
rollers at the delivery side of the die to assist in drawing the section through if such
should be found to be desirable as for example in the case of thick sections. I do
not confine myself to the arrangement of roller mechanism shown and described so
long as a shaping die similar to that described is employed nor do I confine myself
to the use of one die as several such may be used. Having formed the section of
tyre in the foregoing manner I bend it into a ring of the required diameter and
weld the joint. The ring is then shrunk and secured upon the felloe of the wheel
and the rubber is inserted into the tyre in the ordinary manner.
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) In the manufacture of grooved metal tyres for wheels the general arrangement
and combination of roller mechanism and shaping die for the production of such
tyres substantially as described and shown.
(2) In the manufacture or production of grooved metal tyres for wheels the
employment of a shaping die or of shaping dies for giving the required form to the
section of metal from which such tyres are made substantially as hereinbefore
described and shown.