IMPROVEMENTS IN RAILWAY CARRIAGE WHEELS
Year: 1874

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, Doctor of Laws, for the
Invention of "IMPROVEMENTS IN RAILWAY CARRIAGE WHEELS." -A
communication from abroad by Richard Norton Allen, of Hudson,
New York, United States of America.
Sealed the 2nd October 1874, and dated the 14th August 1874.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 14th August 1874, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton Build-
ings, London, Doctor of Laws, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
RAILWAY CARRIAGE WHEELS," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn Declaration that it has

page_text: been communicated to me from abroad by Richard Norton Allen, of
Hudson, New York, United States of America.
NOW KNOW YE, that I, the said George Haseltine, 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, reference being had to the accompanying Drawing forming
a part of this Specification :-
Figure 3 is a side view of the wheel having the side plate detached.
Figure 4 is a transverse section of the tire.
Figure 5 is a transverse section of the wheel.
Like letters of reference refer to like parts in the several views.
In the Drawing, Figure 1, A represents the tire of the wheel of which
Figure 4 is a detached transverse section; B is the flange of the tire;
and C the rim or tread; D is an annular flange or web formed around
the inner side of the tread of the tire between the two edges thercof,
thereby forming an annular recess or rabbet on each side of the web
deeper on the flange side of the tire than on the other.
In the flange side a of the tire is fitted a core or centre F, Figure 3,
a transverse section of which is shown in Figure 5; said core or centre
is made of paper, and which is so fitted within the tire that the perimeter
of the core fits tightly to its inner surface. An offset G on the side of
the core fits tightly in the circumference of the annular flange, as shown
in Figure 3. The thickness of the boss being equal to that of the flange
in which it is fitted brings the side of the core flush with the face or side
of the flange, as will be seen in Figure 5. In this arrangement of the
core and the tire it will be observed that said tire is supported by the
core in its contact directly therewith on one side of the web or flange,

page_text: and by the boss of the core in its contact with the circumference of the
web or flange wherein it is fitted.
The core is covered on each side of the wheel by plates c, d, through
which passes the hub H. The plates arc secured to the wheel by a series
of bolts e passing quite through the wheel. It will be seen that the
outer series or circle of bolts passes through the web or annular flange,
whereas the inner circle or series of bolts passes through the core plates
and the flange I of the hub. The bolt holes in the core are made a trifle
larger than the corresponding holes in the plates for the purpose of
allowing a little freedom of movement to the plates which do not fit
tightly in the circumference of the tire, in order that there shall be no
undue strain exerted upon them.
In making the annular flange above referred to a narrow one as above
described the tire of the wheel can be much more casily made and at less
expense than if the flange were made a wide one; at the same time the
"strength of the wheel is not materially weakened, the tire being suffi-
ciently strong for all ordinary use.
It will be obvious that in the event the tire should break the wheel
cannot fly to pieces. The numerous bolts passing both through the
flange and through the core will prevent the pieces of the broken tire
from flying off and a consequent breaking down of the engine or
carriages.
Having thus fully described the said Invention as communicated to
me from my foreign correspondent, and the manner of performing the
same, I wish it understood that I claim,-
First. The tire A provided with an annular flange or web D, said web
being so arranged in relation to the perimeter or rim of the tire that it
shall project from some point or line between the circumferential edges
or sides thereof, more or less distant from said edges, forming a rabbet
or recess on each side of the flange in combination with the core or
centre F, substantially as described and for the purpose specified.
Second. The tire A having an annular flange or web D, said flange
or web being so arranged to the perimeter or rim of said tire that it
shall project from some point or line between the circumferential edges or
side thereof more or less distant from said edges, forming thereby an

page_text: annular rabbet or recess on each side of the flange, in the manner sub-
stantially as described and for the purpose set forth.
In witness whereof, I, the said George Haseltine, have hereunto
set my hand and seal, this Fourteenth day of August, in the year
of our Lord One thousand eight hundred and seventy-four.
Witness,
HENRY JA. NOONE,
8, Southampton Buildings,
London.
GEORGE HASELTINE. (L.S.)