IMPROVEMENTS IN RAILWAY CARRIAGES AND WAGGONS
Year: 1866

page_text: LETTERS PATENT to Clinton Edgcumbe Brooman, of the Firm of Robertson,
Brooman, and Company, of 166, Fleet Street, in the City of London,
Patent Agents, for the Invention of "IMPROVEMENTS IN RAILWAY CARRIAGES
AND WAGGONS."-A communication from abroad by Samuel Maynard, of
New York, United States of America.
Sealed the 7th June 1867, and dated the 11th December 1866.
PROVISIONAL SPECIFICATION left by the said Clinton Edgcumbe
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 11th December 1866.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and
Company, of 166, Fleet Street, in the City of London, Patent Agents, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
RAILWAY CARRIAGES AND WAGGONS," to be as follows:-
This Invention consists in so constructing and arranging the truck of
railway carriages and waggons that should it accidentally be thrown to either
side, so that the ordinary wheels leave the rail when passing a switch, it shall
still be supported and be able to run without injury, and at the same time
warning is given to the engineer, and the breaks of this truck will then be
applied automatically as I proceed to describe.
This Invention is carried into effect as follows:-
The framework and wheels are as usual in the ordinary truck, but inside
of each of these wheels I place upon the same axle another wheel of slightly

page_text: less diameter than the outside wheels; the tread of these is to be as far
are apart at their ends when the
Between the ordinary axles and
within that of the main wheels as the rails
switch changes from one rail to the other.
in the middle of the truck I place another axle having a small wheel on each
end, so arranged that the lower lines of these wheels are on a plane with the
lower lines of the inner wheels on the other axle, and horizontally they are
placed as far outside of the ordinary wheels as the smaller wheels are inside.
To the central axle I affix the end of a chain or cord attached to the end
of the break lever, so that it may be wound up by the revolution of this axle,
and I also affix to this same axle a cord which leads to the whistle of the
locomotive.
The operation of this Invention in case the ordinary wheels are thrown
from the line in either direction laterally is to throw the truck on two of the
inside safety wheels on one side and on one of the outside smaller wheels on the
other side, so that the truck is still able to keep in line, but as soon as this
is done the revolution of the central axle winds up the break chain and also
the whistle cord, thus causing the stoppage of the train and giving warning of
danger to the engineer.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Clinton Edgcumbe Brooman in the Great Seal Patent
Office on the 11th June 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CLINTON
EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and Company, of
166, Fleet Street, in the City of London, Patent Agents, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of December, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Clinton Edgcumbe Brooman, Her special licence that I, the said
Clinton Edgcumbe Brooman, my executors, administrators, and assigns, or
such others as I, the said Clinton Edgcumbe Brooman, my 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 RAILWAY CARRIAGES AND WAGGONS,"

page_text: (communicated to me from abroad by Samuel Maynard, of New York,
United States of America,) upon the condition (amongst others) that I, the
said Clinton Edgcumbe Brooman, my executors or administrators, by an
instrument in writing under my, or their, or one of 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 I, the said Clinton Edgcumbe Brooman, do hereby
declare the nature of the 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:
This Invention consists in so constructing and arranging the. truck of
railway carriages and waggons that should it accidentally be thrown to either
side so that the ordinary wheels leave the rail it shall be supported and bo
able to run without injury, at the same time warning is given to the engineer,
and the brakes of this truck are applied automatically as hereafter more fully
described.
This Invention is as follows, and as shown,in plan in Figure 1, and in side
view in Figure 2.
A is the framework, and B, B, the wheels, being those usual in the ordinary
truck, but inside of each of these wheels B, B, I place upon the same axle
another wheel C of slightly less diameter than the outside wheels. The the
tread of these is to be as far within that of the main wheels as the rails are apart
at their ends where the switch changes from one rail to the other. Between
the ordinary axles and in the middle of the truck at D I place another axle
having a small wheel E on each end so arranged that the lower lines of these
wheels are on a plane with the lower lines of the inner wheels on the other
axles, and horizontally they are placed as far outside of the ordinary wheels B, B,
as the smaller wheels C, C, are inside. To the central axle DI affix the
end of a chain d' or a cord attached to the end of the brake lever G, so that
it may be wound up by the revolution of this axle, and I also affix to this
same axle a cord du which runs to the whistle of the locomotive.
The operation of this Invention in case the ordinary wheels are thrown
from the line in either direction laterally is to throw the truck on two of the
inside safety wheels C, C, on one side, and on one of the outside smaller
wheels E on the other side, so that the truck is still able to keep the line,
but as soon as this is done the revolution of the central axle D winds up the

page_text: brake chain d' and also the whistle cord d", thus causing the stoppage of the
train and giving warning of danger to the engineer.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim as the improve-
ments in railway carriages and waggons,―――
First, the combination with an ordinary carriage or waggon truck of the
inside wheels C, C, C, C, and the central axle D with its wheels E, E, arranged
and operating substantially in the manner and for the purpose herein-before
described.
Second, operating the brake of the truck and the steam whistle of the
engine substantially in the manner herein-before described.
In witness whereof, I, the said Clinton Edgcumbe Brooman, have
hereunto set my hand and seal, this Tenth day of June, One thousand
eight hundred and sixty-seven.