IMPROVEMENTS IN THE CONSTRUCTION OF CHALDRON-WAGON AND OTHER RAILWAY WHEELS
Year: 1858

page_text: LETTERS PATENT to Alfred Hollis and Stephen Lee, both of Darlington,
in the County of Durham, Engineers, for the Invention of "IMPROVEMENTS
IN THE CONSTRUCTION OF CHALDRON-WAGON AND OTHER RAILWAY WHEELS."
Sealed the 2nd August 1858, and dated the 3rd February 1858.
PROVISIONAL SPECIFICATION left by the said Alfred Hollis at the Office
of the Commissioners of Patents, with his Petition, on the 3rd February
1858.
We, ALFRED HOLLIS and STEPHEN LEE, both of Darlington, in the County.
of Durham, Engineers, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF CHALDRON-WAGON AND OTHER RAILWAY
WHEELS," to be as follows:-
We construct our wheels in four parts, of which two spokes, two portions of.
the rim or felloe, and one quarter side or segment of the nave, form one part
or fourth. The spokes being made solid on the piece forming one side or
segment of the nave are then bent to form a portion of the rim or felloe, each
extreme end of such portion having a tenon to fit into the shoulder of the
portion of the rim or felloe next it through a mortice. These four parts
of the wheel are fitted together, and the four nave sides or segments are
secured by strong hoops contracted thereon. These parts form the entire
skeleton wheel, on which the tyre is shrunk in the usual manner. The axle
end (square or round) is wedged or keyed on to the nave, according to common
practice.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Hollis in the Great Seal Patent Office on the
3rd August 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, .we, ALFRED
HOLLIS and STEPHEN LEE, both of Darlington, in the County of Durham,
Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of February, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Alfred Hollis and Stephen Lee, Her special licence that we, the said
Alfred Hollis and Stephen Lee, our executors, administrators, and assigns, or
such others as we, the said Alfred Hollis and Stephen Lee, our executors,
administrators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF CHALDRON-WAGON AND
OTHER RAILWAY WHEELS," upon the condition (amongst others) that we, the said
Alfred Hollis and Stephen Lee, or one of us, our executors or administrators,
by an instrument in writing under our, or their, or one of our or their hands
and seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Alfred Hollis and Stephen Lee, do
hereby declare the nature of our said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings hereunto
annexed, that is to say :-
We construct our wheels in four parts, of which two spokes, two portions of
the rim or felloe, and one quarter side or segment of the nave, form one part
or fourth. The spokes being made solid on the piece forming one side or
segment of the nave are then bent to form a portion of the rim or felloe, each
extreme end of such portion having a tenon to fit into the shoulder of the
portion of the rim or felloe next it through a mortice. These four parts of the
wheel are fitted together, and the four nave sides or segments are secured by
strong hoops contracted thercon. These parts form the entire skeleton wheel,

page_text: The axle end (square or
on which the tyre is shrunk in the usual manner.
round) is wedged or keyed on to the nave according to common practice.
Our Invention is illustrated in the Drawings hereunto annexed.
Figure 1 represents a front elevation of the wheel complete, with a square
nave; Figure 2 is a section of the same; Figure 3 is an enlarged elevation of
the square nave; Figure 4 is an enlarged section of the square nave;
Figure 5 represents a front elevation of the wheel, with a round nave; Figure 6
is a section of the same; Figure 7 is an enlarged elevation of the round nave;
Figure 8 is an enlarged section of the round nave; and Figure 9 illustrates
the connection of the parts of the rim at each spoke, by means of a mortice
and tenon joint, the same being shown with the tyre off.
We construct our wheels as follows:-We make the wheel entirely of
malleable iron, in four parts, of which two spokes a, a, two portions of the
rim a', a', and one side of the nave a², form one part, as shewn in Figures 1
and 5. The spokes a, a, are forged solid or smithed and put together with
the piece forming one side of the nave a², the latter being moulded to the
shape shown in the Drawing. The two pieces of the rim a¹, a', are a con-
tinuation of the spokes bent to a mould and connected together at each spoke
end, as shown at Figure 9, by means of a mortice and tenon joint. The four
parts of the wheel (of which the construction of one part is described above),
are fitted together, and the four nave sides of each part are secured together
by two strong hoops 6 contracted thereon. The entire skeleton wheel is thus
completed, and upon it the tyre c is contracted and rivetted in the usual
manner. The axle is finally wedged in or keyed on to the nave, according to
common practice.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, we declare that we claim the construc-
tion of chaldron-wagon and other railway wheels in four parts, of which two
spokes, two portions of the rim or felloe, and one quarter of the nave, form
one part, in the manner herein-before described, and illustrated in the Drawings
hercunto annexed.
In witness whereof, we, the said Alfred Hollis and Stephen Lee, have
hereunto set our hands and seals, this 31st day of July, One thousand
eight hundred and fifty-eight.
ALFRED HOLLIS. (L.S.)
STEPHEN LEE. (L.S.)