IMPROVE MENTS IN THE ROLLING STOCK OF RAILWAYS
Year: 1868

page_text: LETTERS PATENT to Henry Chaytor, of Witton Castle, near Dar-
lington, in the County of Durham, for the Invention of "IMPROVE
MENTS IN THE ROLLING STOCK OF RAILWAYS."
Sealed the 17th October 1868, and dated the 27th April 1868.
PROVISIONAL SPECIFICATION left by the said Henry Chaytor at
the Office of the Commissioners of Patents, with his Petition, on
the 27th April 1868.
I, HENRY CHAYTOR, of Witton Castle, near Darlington, in the
County of Durham, hereby declare the nature of my said Invention
for "IMPROVEMENTS IN THE ROLLING STOCK OF RAILWAYS," to be as follows:-
This Invention has for its object to facilitate the passage of rolling
stock along railways and round curves by enabling the wheels to run
round independantly of each other in lieu of securing two wheels on to
the same axle as heretofore.
According to my Invention I secure each wheel to an independant
axle, which extends about half way across the framing of the vehicle,
mecting the corresponding axle of the opposite wheel in the same axial

page_text: line (or each axle may be placed in a separate box). These axles are
tapered to their inner ends and enclosed in a box common to both, and
have a bearance at their inner ends in the said box, and a bearance next
the wheel also placed in the said box, above which latter bearance the
chief sustaining springs of the vehicle are placed upon the said box.
This box is made of two or more pieces of any cast, rolled, or suitable metal
or combination of metals bolted together. If desired the axles may be
extended through the wheels to afford a catch bearing to check any
rolling tendency in the vehicles. And in order to prevent the said
rolling tendency I attach short check chains fastened one to each end
of the said box and attached to the frame of the vehicle immediately
above, which may be adjusted by screws, and which may perhaps suffice
without the external bearing to prevent rolling. The bearings in the
said box are to be lubricated with oil or grease. When oil is used it is
supplied from a small reservoir or well in the box by the rotation of the
axles themselves, and which after oiling the central bearances flows
along the axle boxes into wells adjoining; the bearances next the wheels
to be oiled therefrom in a similar manner. The box is to be furnished
with covered apertures by which to inspect the bearances at any time it
may be wished to do so.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Chaytor in the Great Seal Patent Office on
the 27th October 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
CILAYTOR, of Witton Castle, near Darlington, in the County of Durham,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of April, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Henry Chaytor, Her special license that I,
the said Henry Chaytor, my executors, administrators, and assigns, or
such others as I, the said Henry Chaytor, my executors, administrators,
or assigns, should at any time agree with, and no others, from time
to time and all times thercafter during the term therein expressed,

page_text: 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 ROLLING STOCK OF
RAILWAYS," upon the condition (amongst others) that I, the said Henry
Chaytor, my executors or administrators, by an instrument in writing
under my hand and seal, 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 Scal
Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Chaytor, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to
say:-
My said Invention has for its object the facilitating the passage of
rolling stock. along railways, tramways, and rolleyways, by enabling the
wheels to run round independently of each other in lieu of securing two
wheels on to the same axle as heretofore.
•
And in order that my said Invention may be fully understood, I shall
now proceed more particularly to describe the same, and for that purpose
shall refer to the accompanying Drawing which represents a sectional
elevation of a pair of wheels mounted independently of each other in
accordance with my said Invention.
I secure each wheel A to an independent axle B which extends about
half way across the framing of the vehicle, meeting the corresponding
axle of the opposite wheel in the same axial line (or each axle may be
placed in a separate box). These axles are tapered to their inner ends
and enclosed in a box C common to both, and have each a bearing a at
their inner ends in the said.box, and another bearing 6 next the wheel
also placed in the box C. Above the latter bearing the chief sustaining
springs D of the vehicle are placed resting upon the box C. This box
is made in two or more pieces longitudinally of any suitable metal or
combination of metals, whether cast or rolled, bolted together. Should
there be any rolling tendency, which I do not expect, I attach short
check chains E fastened one to each end of the said box C, and attached
to the inner frame F of the vehicle as a precaution, immediately above

page_text: which chains may be adjusted by screws, and so check the least tendency
to rolling. The bearings in the said box C are to be lubricated with oil.
When oil is used it is supplied from a small reservoir or well d in the
box by the rotation of the axles themselves, and which after oiling the
central bearings flows along the axle box into wells e adjoining the
bearings 6 next the wheels, which bearings may be oiled in a similar
manner to the bearings d. The box O is to be furnished with covered
apertures by which to inspect the bearings at any time when requisite.
The original outer frames G may be retained in combination with the
inner frames F, if desired, by extension of the axle, but such is un-
necessary and undesirable.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may be used or
.carried into effect, I would observe in conclusion that what I consider
to be novel and original, and therefore claim as the Invention secured
to me by the herein-before in part recited Letters Patent is,-
First. The combination of independent wheels and axles as described,
with a hollow axle box, substantially as and for the purpose herein-
before mentioned, and the application thereof to the aforesaid purposes.
Second. The peculiar mode of supplying the lubricating material to
the bearings of the independent axles contained in the axle box, substan-
tially as herein-before described.
In witness whereof, I, the said Henry Chaytor, have to this
my Specification, set my hand and seal, the Twenty-fourth day
of October One thousand eight hundred and sixty-eight.
HENRI CHATTON. (L.S.)