IMPROVEMENTS IN RAILWAY WHEELS
Year: 1878

page_text: LETTERS PATENT to William Lloyd Wise, of Chandos Chambers, Adelphi, in
the County of Middlesex, for the Invention of "IMPROVEMENTS IN RAILWAY
WHEELS." A. communication from abroad by Gustav Egorovitch von Struve,
Colonel of Engineers, of Moscow, Russia.
Scaled the 10th April 1879, and dated the 22nd October 1878.
PROVISIONAL SPECIFICATION left by the said William Lloyd Wise at the
Office of the Commissioners of Patents on the 22nd October 1878.
WILLIAM LLOYD WISE, of Chandos Chambers, Adelphi, in the County of
Middlesex. " IMPROVEMENTS IN RAILWAY WHEELS." (A communication from
abroad by Gustav Egorovitch von Struve, Colonel of Engineers, of Moscow, Russia.)
This Invention has for object the fastening of the tyres to the bodies of railway
wheels, so as to prevent the tyres in case of breakage leaving the wheel bodies.
For this purpose the tyre is fastened to the wheel body by the use of a projection
formed on the inner periphery of the tyre at one side, in conjunction with a fasten-
ing ring applied at the other side, or two such rings may be employed one at either
side of the rim of the wheel body.
This mode of securing the tyres to wheel bodies may obviously be carried
out in various ways, some of which are illustrated in the accompanying Sheet of
Drawings.
Fig. 1 represents the tyre provided with a projection a turned inwardly, and a
groove made at right angles to the surface of the inner periphery of the tyre, and
serving as a recess for the fastening ring b, placed in this case on the flange side of
the wheel.
The projection a may be on the flange side and the ring b at the other side.
Fig. 2 represents a tyre where the groove for the fastening ring has a direction
inclined to the inside surface of the tyre, the front surface of the rim and the
fastening ring having a corresponding conical form.
The relative positions of the ring b and projection a may be reversed.

page_text: In Fig. 3 is represented a mode of connecting the tyre with the wheel body by
means of two fastening rings placed in two inclined grooves in the tyre, which is
provided with a small projection a alongside of the flange. This projection a may
be on the opposite side, or may be dispensed with.
The fastening ring, made of steel, iron, or some-other-metal, may be in one piece,
cut only in one-place, or may consist of several parts.
The tyre of the proposed construction is forced hot on the wheel in the usual
manner, and after cooling the projection turned on the inside of the tyre will all
round tightly embrace the edge of the rim, being turned accordingly. Thereupon
the fastening ring is driven on, tightly fitting in the groove of the tyre, and firmly
sticking to the rim of the wheel, thus firmly uniting all the parts.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Lloyd Wise in the Great Seal Patent Office on the 21st
April 1879.
WILLIAM LLOYD WISE, late of Chandos Chambers, Adelphi, in the County of
Middlesex, now of 7, Whitehall Place, in the City of Westminster. " IMPROVE-
MENTS IN RAILWAY WHEELS." (A communication from abroad by Gustav Egoro-
vitch von Struve, Colonel of Engineers, of Moscow, Russia.)
One of the most frequent causes of railway accidents happening, especially in
winter, is the breakage of tyres, causing the same, when fastened according to the
usual method shewn in Fig. 1 of the Drawings, partly or entirely to leave the
bodies of the wheels, thus rendering the further motion of the train exceedingly
dangerous.
This Invention has for object the fastening of the tyres to the bodies of railway
wheels in such manner as to prevent the tyres, in case of breakage, leaving the
wheel rims or bodies,
In the accompanying Sheet of Drawings, Fig. 1 shews an ordinary mode of
fastening the tyre to the wheel at present in use.
As well understood, the tyre is in this case fastened by bolts, sliding of the tyre
on the rim in the direction indicated by the arrow being prevented by the projec-
tion a of the tyre.
Evidently the tyre, being in this case only in a few places connected with the
wheel, will leave the same when broken. My foreign correspondent, to prevent
such accidents, adopts a method of fastening the tyre to the wheel body by the use
of a projection turned on the inner periphery of the tyre at one side, in conjunction
with a fastening ring applied at the other side, and placed vertically, or employs
two such rings, one at either side of the rim of the wheel body, and placed in
inclined positions, the said ring or rings entering corresponding grooves of the tyre.
When two rings are thus used the above-mentioned projection of the rim may, if
desired, be dispensed with.
The Invention may obviously be carried out in various ways, some of which are
illustrated in the accompanying Sheet of Drawings.
Fig. 2 represents the tyre provided with a projection a turned inwardly, and a
groove made at right angles to the surface of the inner periphery of the tyre, and
serving as a recess for the fastening ring b, placed in this case on the flange side of
the wheel.
Fig. 3 represents the tyre with the projection a on the flange side, and the fasten-
ing ring b at the other side.
Figs. 4, 5, and 6 shew modes of fastening the tyre by means of two fastening
rings b, b, arranged in inclined positions. In Fig. 4 the tyre is provided with a
small projection a alongside of the flange; in Fig. 5 this projection a is on the
opposite side, and in Fig. 6 the projection a is dispensed with.
The inclined position of the two fastening rings contributes still more to keeping
the tyre firmly in its place in case of breakage, especially if there is no projection a
(sec Fig. 6).
The fastening ring or rings, made of steel, iron, or some other metal, may be in
one piece, cut only in one place, or consist of several parts.
The tyre is forced hot on the wheel in the usual manner, and after cooling, the
projection a turned on the inside of the tyre will all around tightly embrace the
edge of the rim (Figs. 2 and 3), being turned accordingly. Thereupon the fastening
ring is driven on, tightly fitting in the groove of the tyre, and firmly sticking to the
rim of the wheel, thus firmly uniting all the parts. When using two rings the
operation is similar.
It is evident that with this mode of fastening no parts of the tyre will leave the
wheel in case of breakage.

page_text: Having described the nature of the said Invention and explained the manner of
carrying the same into practical effect, as communicated to me as aforesaid, I would
have it understood that I do not claim per se the turning a projection on the inside
of a tyre; and, furthermore, I hereby declare that what I claim as the Invention
secured to me under the Letters Patent herein-before-in-part-recited-is,
The improved methods, substantially as herein-before described with reference to
the accompanying Drawings, Figs. 2 to 6 inclusive, of securing tyres to the rims or
bodies of railway wheels.
In witness whereof, I, the said William Lloyd Wise, have hereunto set my
hand and seal, this Twenty-first day of April, in the year of our Lord One
thousand eight hundred and seventy-nine.
W. LLOYD WISE. (L.S.)