Improvements in Apparatus for the Making or Manufacture of Caustic Soda or Caustic Potash, being a Method of Passing the Chlorine and Sodium Gases to the Receiver.
Year: 1893

page_text: Date of Application, 10th Jan., 1893
Complete Specification Left, 10th Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Making or Manufacture of
Caustic Soda or Caustic Potash, being a Method of Passing the
Chlorine and Sodium Gases to the Receiver.
I FREDERICK WILLIAM PETRIE of West Bank Lowerfold Rochdale in the
County of Lancaster Machinist and Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to an apparatus for the making or for the manufacture of
caustic soda or caustic potash such invention being a method of passing the chlorine
and sodium gases as they are disengaged during the manufacture of caustic soda,
from the gas generating vessel or chamber to the receivers.
This invention has particular reference to an invention the subject of Letters
Patent No. 12977, A.D. 1892, Electrolytic Production of Caustic Soda or Caustic
Potash. Burghardt C. A.
It is found in practice in the apparatus the subject of Letters Patent and before
referred to that the gases do not pass over satisfactorily from the generating
chamber to the receivers as is required.
According to my improvements I provide at auy convenient part of the apparatus,
a fau or fans to which I impart a rotary motion which fan or fans may be of
any suitable or ordinary construction, the said fan or fans being situated so as
to intercept the gas generating chamber and the receivers of the apparatus before
referred to and into which receivers the sodium and chlorine gases are to he
passed. The chlorine receiving chamber or receiver being provided with CaO
(lime) and the gas being passed therein in order to effect a combination of the
chlorine with the lime resulting in the formation of Ca (OCI) CI (chloride of lime)
thus the absorption of the chlorine and the removal thereof from the generating
chamber. The sodium gas receiver being provided with the ingredients for the
manufacture of caustic soda as set out in the Specification as above numbered and
before referred to.
The action or operation of my invention is as follows. The chlorine and the
sodium gases being disengaged by the chemical reaction of the ingredients employed
in the gas generating chamber for the manufacture of caustic soda, the revolutions
or motions of the fan or fans cause the gas or gases to ascend and thus may be lifted
or withdrawn from the generating chamber and carried on to the receivers con-
sequently by such means the chlorine and the sodium gases may be effectually
passed from the generating chamber to the receivers.
Dated this 9th day of January 1893.
J. H. BUTTERWORTH,
Rochdale, for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for the Making or Manufacture of
Caustic Soda or Caustic Potash, being a Method of Passing the
Chlorine and Sodium Gases to the Receiver.
I FREDERICK WILLIAM PETRIE of West Bank Lowerfold Rochdale in the
County of Lancaster Machinist and Engineer, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention relates to an apparatus for the making or for the manufacture of
ID 077

page_text: caustic soda or caustic potash such invention being a method or means of passing
the chlorine and sodium gases from the gas generating chamber as they are evolved
in such generating vessel or chamber which chamber forms part of an apparatus
for which Letters Patent have been granted to Ludwig Grabau No. 15792
A.D. 1889.
But my present improvements have more particular reference to an invention the
subject of Letters Patent granted to C. A. Burghardt No. 12977 A.D. 1892, in
which Specification the apparatus of Ludwig Grabau the subject of Letters Patent
No. 15792 A.D. 1889 is referred to and employed.
The object of my improvements being to effectually remove the gases from the
generating chamber and to ensure their transmission to their proper destinations.
It is found in practice that the apparatus the subject of Letters Patent.
No. 12977, A.D. 1892, herein before referred to that the gases do not pass over
satisfactorily from the gas generating chamber to the caustic soda chamber or
receiver and the chlorine receiver respectively. But by the use of my improve-
ments the chlorine and sodium gases may be simultaneously removed or withdrawn
from the generating chamber.
In order that my invention may be clearly comprehended I have hereunto
annexed a sheet of drawings illustrating apparatus the subject of the before named
Patents in which like letters of reference indicate like parts throughout the figures
therein shewn.
Fig. 1. represents an elevation in section sbewing Grabaus apparatus with my.
improvements attached thereto.
Figs. 2 and 3. are sectional elevations of blower and fan respectively drawn to
an enlarged scale.
According to my improvements I provide at the chlorine exit a. of the apparatus
an ordinary blower or fan b. to which I impart a rotary motion by suitable means,
and at the sodium outlet or exit portion c. of the apparatus I provide a fan d.
The said fans being situated so as to intercept the receiver e. which may be any
suitable vessel containing water or lime for the absorption of the chlorine gas and
the caustic soda chamber f. into which the sodium gas is to be conveyed the
said gases are withdrawn therefrom by the rotary actions or movements of the
fans b and d.
The operation of my invention is as follows.
The chlorine and the sodium gases being disengaged in the generating, chamber,
the revolutions of the fans cause the gases to ascend and thus be lifted or
withdrawn from the generating chamber and conveyed through the exit orifices a.
and c.
The employment of the fan d. in connection with the sodium delivery or exit
tube c. also acts as a current inducer, as by the rotary action of the fan air is
induced or drawn through the vertical tube g. whereby an admixture of air with:
the metals is obtained within the pan or chamber h otherwise than under pressure
thus facilitating the conversion of the sodium metal into a gas and obviously at
the same time affords a means of readily and effectively withdrawing the same
from the generating chamber.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.
1. In combination the fans or blowers or blower and fan b and d, in connection
with the chlorine and sodium exit orifices of the apparatus the subject of Letters
Patent hereinbefore referred to whereby both the chlorine and sodium gases may
be simultaneously removed or withdrawn from the gas generating chamber sub-
stantially as and for the purposes herein set forth and described in the drawings
hereunto annexed.
2. In combination the fan d. the vertical tube g. the delivery tube c. whereby a

page_text: current of air is induced by the action or movements of the fan whereby the
production of sodium gas and the withdrawal of the gas is accelerated as herein
fully set forth.
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