IMPROVED APPARATUS FOR EXCLUDING DUST FROM RAILWAY CARRIAGES
Year: 1867

page_text: LETTERS PATENT to William Gaudly Creamer, of Woburn Place,
Russell Square, in the County of Middlesex, Engineer, for the Invention
"
Sealed the 3rd March 1868, and dated the 6th September 1867.
PROVISIONAL SPECIFICATION left by the said William Gaudly Creamer
at the Office of the Commissioners of Patents, with his Petition, on
the 6th September 1867.
I, WILLIAM GAUDLY CREAMER, of Woburn Place, Russell Square, in the
County of Middlesex, Engineer, do hereby declare the nature of the said
Invention for "IMPROVED APPARATUS FOR EXCLUDING DUST FROM RAILWAY
CARRIAGES," to be as follows:-
This Invention consists in the use and application of certain arrangements
whereby dust and cinders can be effectually excluded from railway carriages
whilst the same are kept thoroughly ventilated and the view from the interior
remains unobstructed. These objects are effected by the attachment to the
windows of railway carriages of jointed wire gauze screens constructed to fit
into the same grooves that hold the sashes. The screens are made in two
parts united by hinges, and when they are to be placed in the windows they
are partially folded, the edges placed in the grooves and then pressed out flat.
In combination with the screens some powerful exhausting system of venti-

page_text: lation should be used, which will induce a strong outward current from the
interior of the carriage through the ventilators, thus causing a counter current
of air to penetrate the gauze screens to supply the place of that removed by
the ventilators, and insuring perfect ventilation with freedom from dust and
cinders. The system of ventilation which may be most advantageously
employed for this purpose is that for which I have obtained Provisional
Protection, bearing date the Twentieth day of July 1867, No. 2126. The
last-mentioned system of ventilation consists of the use of vertical wickets
placed in openings in the sides of the carriage, the same being free to move
backwards and forwards on pivots. The wickets stand at an angle of about
45 degrees to the outer side of the carriage. The counter current of air at
the side of the train impinges against the wickets, thus causing an exhausting
current from the inside of the carriage.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Gaudly Creamer in the Great Seal Patent Office
on the 6th March 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GAUDLY CREAMER, of Woburn Place, Russell Square, in the County of Mid-
dlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of September, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Gaudly Creamer, Her special licence that I, the said
William Gaudly Creamer, my executors, administrators, and assigns, or such
others as I, the said William Gaudly Creamer, 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 "IMPROVED APPARATUS FOR EXCLUDING DUST FROM RAILWAY
CARRIAGES," upon the condition (amongst others) that I, the said William
Gaudly Creamer, 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

page_text: Patent Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said William Gaudly Creamer, 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 Drawings hereunto annexed,
and to the figures and letters marked thereon, that is to say:--
.
My said Invention consists in the use and application of certain arrangements
whereby dust and cinders can be effectually excluded from railway carriages,
whilst the same are kept thoroughly ventilated and the view from the interior
unobstructed. These objects are effected by the attachment to the windows of
railway carriages of jointed wire gauze screens or blinds constructed to fit
into the same grooves in which the sashes are held. The screens or blinds
are made in two parts united by hinges, and when they are to be placed in
the windows they are partially folded, the edges placed in the grooves and
then pressed out flat. In combination with the wire gauze screens or blinds
some powerful exhausting system of ventilation should be used, which will
induce a strong outward current of air from the interior of the carriage
through the ventilators, thus causing a counter current of air to penetrate the
wire gauze screens. or blinds to supply the place of that removed by the
ventilators, and thus insuring perfect ventilation with freedom from dust and
cinders.. The system of ventilation which may be most advantageously
employed is that for which I have obtained Letters Patent, bearing date the
Twentieth day of July, in the year of our Lord One thousand eight hundred
and sixty-seven, and numbered 2126.
The last-mentioned system of ventilation consists of the use of vertical
wickets placed in openings in the sides of the carriage, the same being free to
move backwards and forwards on pivots. The wickets stand at an angle of
about forty-five degrees to the outer side of the carriage. The counter current
of air at the side of the train impinges against the wickets, thus causing an
exhausting current from the inside of the carriage.
Although I have mentioned the aforesaid system of ventilation as being the
most advantageous, yet I do not claim it as any part of my present Invention,
as any other system of ventilation suitable for the purpose may be used.
My said Invention will be more clearly understood by reference to the
annexed Drawings.
Figure 1 represents the wire gauze screen or blind as it appears when it is
opened out flat; B, B, is the jointed frame made of wood, in which is placed
the wire gauze.

page_text: Figure 2 represents the frame and wire gauze screen when it is closed and
out of use.
Figure 3 represents the wire gauze screen or blind as it appears when it is
folded previous to placing it in the groove or recess of the carriage door.
Figure 4 is a cross section of the carriage door, A, A, being the door
.frame.
Figure 5 is the door complete with the wire gauze screen or blind in its
proper position. A, A, is the door frame, and B, B, the wire gauze screen or
blind.
Figure 6 is a horizontal section of a compartment of a railway carriage
shewing the operation of my Invention. A, A, is the door; B, B, is the wire
gauze screen or blind in the space usually occupied by the sash; C, C, are
the before-mentioned exhausting ventilators placed above the windows of the
.carriage.
Having thus fully declared and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I would observe in con-
clusion that what I consider novel and original and therefore claim is, the
arrangement of wire gauze screens or blinds for the purpose of excluding
dust from railway carriages in combination with exhausting. ventilators, as
substantially herein-before set forth and described, or any mere modifications
thereof.
In witness whereof, I, the said William Gaudly Creamer, have hereunto
set my hand and seal, this Sixth day of March, in the year of our Lord
One thousand eight hundred and sixty-eight.