IMPROVEMENTS IN RAILWAY WHEELS
Year: 1875

page_text: LETTERS PATENT to William Stableford, of the Railway Carriage
Works, Oldbury, in the County of Worcester, for the Invention of
"IMPROVEMENTS IN RAILWAY WHEELS."
Sealed the 1st June 1875, and dated the 25th March 1875.

page_text: NOW KNOW YE, that I, the said William Stableford, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention and
in what manner the same is to be performed in and by the following
statement thereof, that is to say :-
This Invention of improvements in railway wheels relates to special
modes of attaching the tires upon the rims thereof, and consists,
according to the first method, in forming continuous hollows and lips in
and upon the rim, and corresponding lips and hollows in and upon the
tire, one taking into the other by a combined sliding and shrinking
action, the outer periphery of the rim and the inner periphery of the
tire being preferably coned for the purpose. I retain the tire in place
by a hooked ring or key, upon a dovetailed or angled face of which a
bezel or lip of the tire is forced or hammered, or by plain keys or by
bolts, as desired.
Figure 1 of the annexed Drawings represents my first method or
attachment of tire to rim. a, a¹, are lips on the rim A, and b, b¹, lips
on the tire B; these lips find a lodgment in corresponding hollows or
grooves in the rim and tyre; c is the coned peripheries of the rim
and tyre, which meet when the tyre is forced home and shrunk. C is
the ring or key, with a hook d to take over a hook e of the rim A, the
opposite edge of the ring or key finding a lodgment in a recess of the tire
and with its angle face outwards, against which the lip or bezel e¹ is
rolled or hammered to prevent lateral movement of the tire upon the
rim. I prefer that the ring or key be in sections.
I claim as part of my said Invention the attachment of tyre to rim,
as described and as shown in Figure 1.
The second method consists in forming two lips a, a¹, on the rim A,
and two lips b, 6', on the tire B, as in Figure 2 of the Drawings. The
lip has an angled face for a bezel or lip c on the rim to be rolled or
hammered down upon to retain one in contact with the other, which
connection may be continuous or at intervals.
I claim as part of my said Invention the attachment of tyre to rim, as
described and as shown in Figure 2.
The third method consists in forming two lips a, a', on the rim A, and
two lips b, b', on the tyre B, each to take into corresponding hollows or

page_text: grooves in A and B, within which, as in Figure 3, they are retained by
screw bolts D at intervals.
I claim as part of my said Invention the attachment of tyre to rim, as
described and as shown in Figure 3.
The fourth part of my Invention consists in forming two lips a, a¹, on
the rim A, and two lips b, b', on the tyre B, as in Figure 4, each of
which fits into corresponding hollows or grooves in A, B, the rim and
the tyre being held in contact by a ring or key E and screw bolts D set
at intervals. The outer periphery of the ring or key E fits into a groove
in the tyre, as shown on Drawing.
I claim in this part of my Invention the attachment of tyre to rim, as
described and as shown in Figure 4 of the Drawings.
An alternate mode may be adopted by dispensing with the ring or
key E, viz., by lipping the tyre over the rim, as shown in the 5th part
of my Invention.
The fifth part of my Invention consists in forming one lip a on the tyre
and one lip on the rim, instead of the two lips, as in Figures 1, 2, 3,
and 4. To prevent the tyre moving laterally the bezel or lip e on the
tyre is rolled or hammered over the rim at intervals or continuous, though
if preferred any of the methods for securing the tyre shown on Figures 1,
2, 3, and 4 may be adopted in lieu thereof.
I claim as this last part of my said Invention the attachment of tire
to rim, as described, and as shown in Figure 5 of the annexed Drawings.
It will be observed that the meeting peripheries are cone shaped to
facilitate the tyreing operation, but I lay no claim thereto.
The advantages derived from my Invention are that the tyre is retained
and the whole of the strains resisted by solid hooks instead of by loose
fastenings.
In witness whereof, I, the said William Stableford, have hereunto
set my hand and seal, this Twenty-third day of March, One
thousand night hundoodl
W". STABLEFORD. (L.S.)