Improvements in the Manufacture of Tyres for Railway Vehicles.
Year: 1891

page_text: Date of Application, 27th Apr., 1891
Complete Specification Left, 27th Jan., 1892-Accepted. 12th Mar. 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Tyres for Railway Vehicles.
I, OLIVER MORRIS of 192 Chorley New Road, Horwich, in the County of
Lancaster, Foreman L and Y Forge, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in the manufacture of tyres for railway
vehicles. In the manufacture of tyres for railway vehicles, it is usual to first forge
a suitable ingot or piece of metal into a ring which is afterwards "becked" by
hammering, that is to say, has imparted to it a cross section roughly approximating
to the section of the finished tyre, without reheating. The metal is then reheated
and rolled to the required shape and size to form a finished tyre, in a separate
rolling mill,
Now the object of this invention is to effect both the becking and the rolling
operations in one machine and in one heat, thus dispensing with the necessity
of reheating the metal of which the tyre is to be made, and reducing the time
and cost of manufacture.
For this purpose I provide each of the axles of the finishing rolls used for
rolling the tyres to shape, with an additional roll of small diameter, these additional
rolls having their peripheries so corrugated, waved scalloped or otherwise shaped
as to impart to the ingot a transverse section roughly approximating to the section
of the finished tyre. The ingot after being forged to shape and whilst at a
suitable temperature is passed in succession between the becking rolls and between
the finishing rolls.
Dated this 27th day of April 1891
O. MORRIS,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Tyres for Railway Vehicles.
I, OLIVER MORRIS of 192 Chorley New Road, Horwich in the County of
Lancaster, Foreman L and Y Forge, 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 improvements in the manufacture of tyres for railway
vehicles. In the manufacture of such tyres, it is usual to first forge a suitable
ingot or piece of metal into a ring which is afterwards becked by hammering, that
is to say, has imparted to it a cross section roughly approximating to the section
of the finished tyre, without re-heating. The metal is then re-heated and rolled
to the required shape and size to form a finished tyre in a separate rolling mill.
Now the object of this invention is to effect both the becking and the rolling
operations in one machine and in one heat, thus dispensing with the necessity of
re-heating the metal of which the tyre is to be made, and reducing the time and
cost of manufacture.
For this purpose I provide each of the axles of the finishing rolls used for rolling
the tyres to shape, with an additional roll, these additional rolls having their
peripheries so corrugated, waved scalloped or otherwise shaped as to impart to a
piece of metal passed between them a transverse section roughly approximating to
the section of the finished tyre. Instead of additional rolls, additional grooves may
be formed in the finishing rolls, these grooves being so shaped that they form between
Trine 21

page_text: the rolls an opening roughly approximating to the section of the finished tyre.
The ingot after being forged to ring-shape and whilst still at a suitable temperature
is then passed in succession between the becking rolls or grooves and between the
finishing rolls.
In the accompanying drawings,
Fig. 1 is a front elevation of combined becking and finishing rolls suitable for
rolling locomotive wheel tyres according to my invention.
1 and 2 are finishing rolls fixed respectively on axles 3 and 4 mounted in suitable
frames or housings the axle 3 being capable of movement away from the axle 4 to
admit of the placing of a ring or rough tyre between them as well understood.
The roll 1 is formed with finishing grooves 5, 5" and the axle 4 is movable endways
so that the roll 2 thereon can be used alternately with the grooves 5, and 5ª to
prevent overheating of the grooved parts of roll 1. The. roll 2 is formed with a
recess 6, the formation of the grooves 5, 5ª and recess 6 being such as to impart the
desired finished shape to a tyre passed through and between them. 7 is an
additional or becking roll formed in one with the finishing roll 1, or secured upon
the axle 3 at the side of this roll; it is formed with a groove 8 the bottom of which
roughly approximates in cross section to the outer periphery of the finished tyre in
cross section. 9 is another additional or becking roll formed in one with or secured
upon the axle 4; it is formed with a groove 10 the bottom of which roughly
approximates to the inner periphery of a finished tyre. 11 11 are recesses
extending below the general surface of the bottoms of the grooves 8 and 10 for the
purpose of enabling the becking rolls to obtain a firm grip of the rough tyre passed
between them.
With the arrangement of rolls described, the metal ingot after being forged to
ring-shape, is at once and without re-heating, and whilst still at a high temperature,
passed first between the becking rolls 7 and 9 and rolled whereby there is imparted
to it the transverse section shewn at 12, and then between the finishing rolls 1
and 2 by which the tyre is rolled to the desired or finished cross section shewn
at 13, the tyre being still at a bright red heat when finished.
Fig. 2 is a similar view to Fig. 1, shewing a suitable formation of the grooves in
the becking and finishing rolls for a tyre suitable for a railway waggon.
Fig. 3 shews a suitable formation of grooves for a tyre for a railway carriage.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The hereinabove described improvements in the manufacture of tyres for railway
vehicles according to which a tyro is made by forging an ingot or piece of metal
whilst at a suitable temperature into a ring, and then forming this ring whilst still
at a suitable temperature and without re-heating, into a tyre of the desired cross
section by passing it successively between combined becking and finishing rolls
substantially as hereinabove described with reference to and illustrated in the
drawings annexed.
Dated this 27th 1 I
1000