IMPROVEMENTS IN RAILWAY SIGNALS
Year: 1863

page_text: LETTERS PATENT to Edwin Daniel Chattaway, of New Broad Street, in
the City of London, Engineer, for the Invention of "IMPROVEMENTS IN
RAILWAY SIGNALS."
Sealed the 29th September 1863, and dated the 11th July 1863.
PROVISIONAL SPECIFICATION left by the said Edwin Daniel Chattaway
at the Office of the Commissioners of Patents, with his Petition, on the
11th July 1868.
I, EDWIN DANIEL CHATTAWAY, of New Broad Street, in the City of London,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN RAILWAY SIGNALS," to be as follows:-
This Invention relates to improvements in railway signals, and consists,
firstly, in adapting the cord and bell, or cord and whistle arrangement or signal
at present in use for enabling the guard of a train to communicate with the
engine driver, so as at the will of the guard to convert such arrangement into
an electro-galvanic or electro-magnetic signal. This I propose to effect by
enclosing copper or other suitable wire or wires properly insulated in the cord
of the arrangement before referred to, and connecting the same with a
galvanic battery or magnetic apparatus in the guard's van.
Secondly, in constructing railway, semaphore, and other similar signals of
sheet iron, either coated or not coated with vitreous enamel, or other similar
material.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edwin Daniel Chattaway in the Great Seal Patent Office on
the 11th January 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWIN
DANIEL CHATTAWAY, of New Broad Street, in the City of London, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of July, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Edwin Daniel Chattaway, Her special licence that I, the said Edwin
Daniel Chattaway, my executors, administrators, and assigns, or such others
as I, the said Edwin Daniel Chattaway, 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 SIGNALS," upon the condition (amongst others)
that I, the said Edwin Daniel Chattaway, 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 Inven-
tion, 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 Edwin Daniel Chattaway, 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, that is to say:-
My said Invention relates to improvements in railway signals, and consists,
firstly, in adapting the cord and bell, or cord and whistle arrangement or
signal at present in use for enabling the guard of a train to communicate with
the engine driver, so as at. the will of the guard to convert such arrangement
into an electro-galvanic or electro-magnetic signal.
:
Secondly, in constructing railway, semaphore, and other similar signals of
sheet iron, either coated or not coated with vitreous enamel, or other similar
material.
And in order that my said Invention may be fully understood and readily
carried into effect, I will now proceed more particularly to describe the same.

page_text: With reference to the firstly mentioned part of my said Invention, I enclose
copper or other suitable wire or wires properly insulated in the cord of the
arrangement before referred to, and connect the same by any suitable means
with a galvanic battery or magnetic apparatus in the guard's van of a railway
train. The wire or wires may be insulated by means of gutta percha, india-
rubber, or other suitable insulator.
With reference to the secondly mentioned part of my said Invention, I take
sheet iron and bend it so that when the edges are rivetted together, or other-
wise suitably connected, the iron forms a tapered tube. A number of these
tubes corresponding with the height of the signal post required, and of a
gradually decreasing diameter, are fitted together so as to form a hollow mast
or tubular post, to the top of which the semaphore arm or arms is or are
attached.
The signal thus constructed may be enamelled with glass by the process
known as Paris's Patent, or enamelled or coated by other suitable means.
In witness whereof, I, the said Edwin Daniel Chattaway, have hereunto
set my hand and seal, the Eleventh day of January, One thousand
eight hundred and sixty-four.