IMPROVED ARRANGEMENTS FOR PREVENTING THE ESCAPE OF NOXIOUS VAPOURS AND GASES FROM CEMENT KILNS AND SUCH LIKE FURNACES BY NEUTRALIZING, AND DEODORIZING, AND UTILIZING SAID Vapours and Gases.”
Year: 1874

page_text: LETTERS PATENT to William Gostwick Gard, of Dunstable, in the
County of Bedford, Manufacturer, for the Invention of "IMPROVED
ARRANGEMENTS FOR PREVENTING THE ESCAPE OF NOXIOUS VAPOURS AND GASES
FROM CEMENT KILNS AND SUCH LIKE FURNACES BY NEUTRALIZING, AND
DEODORIZING, AND UTILIZING SAID Vapours and Gases.”
DEODORIZING, AND UTILIZING SAID Vapours and Gases.”
PROVISIONAL SPECIFICATION left by the said William Gostwick Gard
at the Office of the Commissioners of Patents, with his Petition,
on the 12th October 1874.
I, WILLIAM GOSTWICK GARD, of Dunstable, in the County of Bedford,
Manufacturer, do hereby declare the nature of the said Invention for
" IMPROVED ARRANGEMENTS FOR PREVENTING THE ESCAPE OF NOXIOUS VAPOURS
AND GASES FROM CEMENT KILNS AND SUCH LIKE FURNACES BY NEUTRALIZING, AND
DEODORIZING, AND UTILIZING SAID VAPOURS AND GASES," to be as follows:-
My improved arrangements are these:-The top of the kiln I cover
with a gas-tight cap, and from this cap a pipe or duct proceeds outside

page_text: the kiln and into a purifier conveying the gas or vapor into the same;
(this purifier may be (for instance) a lime water tank with a perforated
false bottom, under which the said pipe enters, so that the noxious gases
from the kiln may be caused to enter evenly through the perforations of
the false bottom the main body of the lime water purifier).
For conveying away the purified gas or vapour from the purifier
another pipe or duct proceeds to a blast fan or other suitable exhauster,
and from the fan a pipe conducts the purified gas or vapour to a furnace
or fire, where it will be burnt and rendered innoxious and inodorous, or
may be utilized if desired.
it
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Gostwick Gard in the Great Seal Patent
Office on the 12th April 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GOSTWICK GARD, of Dunstable, in the County of Bedford, Manufacturer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of October, in the
year of our Lord One thousand eight hundred and seventy-four, in
the thirty-eighth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said William Gostwick Gard, Her
'special licence, that I, the said William Gostwick Gard, my executors,
administrators, and assigns, or such others as I, the said William Gostwick
Gard, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 ÅRRANGEMENTS FOR PREVENTING THE ESCAPE OF NOXIOUS VAPOURS
AND GASES FROM CEMENT KILNS AND SUCH LIKE FURNACES BY NEUTRALIZING, AND
DEODORIZING, AND UTILIZING SAID VAPOURS AND GASES," upon the condition
(amongst others) that I, the said William Gostwick Gard, my
executors or administrators, by an instrument in writing under my,
or their, or one of their hands and seals, should particularly

page_text: 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 William Gostwick Gard, 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 :—
My improved arrangements are these:-The top of the kiln I cover
with a gas-tight cap, and from this cap a pipe or duct proceeds outside
the kiln and into a purifier conveying the gas or vapour into the same.
For carrying away the purified gas or vapour from the purifier another
pipe or duct proceeds to a blast fan or other suitable exhauster, and
from the fan a pipe conducts the purified gas or vapour to a furnace or
fire, where it will be burnt and neutralized or rendered innoxious and
inodorous, or it may be utilized if desired.
Having thus far described the nature of my said Invention I will now,
in further compliance with the said condition in the aforesaid Letters
Patent contained, more fully and particularly describe the same therein,
particularly describing and ascertaining in what manner the said Inven-
tion is to be performed or carried out in practice by reference to the
Drawings accompanying this Specification.

page_text: The action of the apparatus is as follows:-The kilns (A) having been
charged the fan (H) is put in motion, and thereby creates a draught in
the kilns (A), and at the same time draws the gases generated in the
kilns (A) through the pipes or ducts (C) into and through the main (D)
to the purifier (F) by means of the pipe (E), where the gases undergo a t
sufficient amount of purification, and issue out of the purifier by means
of pipe or duct G, and proceed again into the main (D) and to the
fan (H), and thence the gases, as purified, pass by the pipe or main H¹
for utilization, as may be required, as for instance by bringing the same
to the drying floors, so as to assist heating the pans, or by conveying 1
the gases to the furnace of a steam engine.
To prevent the gases passing direct to the fan a stop or valve at h is
used, and thus the gases as they issue from the kiln must pass into the
purifier.
In the drawing two purifiers are shewn, but one is sufficient in many 1
cases for purifying the gas, although, if required, any number may be
used, but two are generally preferred, so that whilst one is being used
in purifying the other may be cleaned out, and for the purpose of
shutting off communication with the main D the pipes E and G are
furnished with cocks or valves e and g, which may be opened and closed 2
as required. The ducts or pipes O are also furnished with cocks or
valves c, so as to admit of opening and closing communication with the
main D when required.
Either dry or wet purifiers may be used for the purposes of my said
Invention. Those shewn in the Drawing represent dry purifiers.
In cases where it may be found that steam is given off in the kilns by
reason of the cement not being properly dried before being put therein
the gases with the steam issuing from the kilns are to be passed through
a cistern of cold water, so that the steam is condensed, and the gases
pass on into the purifier. A cock or valve d is provided in main D to 3
let off any water that may accumulate in same.
Having now particularly described and ascertained the nature and
object of my said Invention, and in what manner the same is to be
performed or put in practice, I hereby declare that I claim the herein
described Invention of improved arrangements for preventing the escape S
of noxious vapours and gases from cement kilns and such like furnaces by
neutralizing or rendering innoxious and deodorizing and utilizing said

page_text: vapours and gases, as herein-before set forth and described, a principal
point in the said Invention being the adaptation to capped kilns of the
combination of arrangements for producing a draught and purifying the
gas, substantially the same as herein-before described, it being under-
stood that I do not limit myself to the precise details herein-before set
forth so long as the substantial character of my Invention be adhered to.
In witness whereof, I, the said William Gostwick Gard, have
hereunto set my hand and seal, this Ninth day of April, in
the year of our Lord One thousand eight hundred and seventy-
five.
Witness,
W“. G. GARD. (L.S.)
T. MORGAN,
Secretary,
Inventors' Patent Right Association, Limited,
21, Cockspur Street,
Charing Cross,
S.W.