Year: 1888

page_text: Date of Application, 12th Apr., 1888
Complete Left, 1st June, 1888
Complete Accepted, 20th July, 1888
We BRIN'S OXYGEN COMPANY Limited of Connaught Mansions in the City of
Westminster do hereby declare the nature of this Invention which has been communi-
cated to us from abroad by Léon Quentin Brin of 7 Rue Gavarni Paris in the
Republic of France Engineer and Chemist to be as follows :-
The said Invention has for its object to provide a bleaching process which is more
rapid than such operations as usually conducted and in which economy in the
bleaching agent is effected.
"
The said Invention consists in the combined use for bleaching purposes of oxygen
or of air and bleaching powder or chlorine. When the oxygen or air is used in
conjunction with bleaching powder the oxygen or the air is passed under the requisite
pressure into the mixture of bleaching solution and material to be bleached the whole
being preferably kept agitated in a potcher churn or other suitable vessel. The vessel
may be either open or closed and in the latter case the excess of oxygen when oxygen
is used as such may be led off for re-use in further operations.
When the oxygen or air is used in conjunction with chlorine the oxygen or the air
may be passed direct under the requisite pressure into the chamber churn or other
vessel in which the material to be bleached is being subjected to the action of the
chlorine or the oxygen or the air may be passed into the chlorine still in which
chlorine is being generated (which may be effected by any usual or suitable means)
whence it and the chlorine pass together into the bleaching chamber.
Oxygen may be used as above either where gas bleaching is being employed
or where the chlorine is passed into a mixture of water and the material to be
bleached.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.

page_text: We BRIN'S OXYGEN COMPANY Limited of Connaught Mansions in the City of
Westminster do hereby declare the nature of this Invention which has been communi-
cated to us from abroad by Léon Quentin Brin of 7 Rue Gavarni Paris in the
Republic of France Engineer and Chemist and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
The said Invention has for its object to provide a bleaching process which is more
rapid than such operations as usually conducted and in which economy in the
bleaching agent is effected.
The said invention consists in the combined use for bleaching purposes of oxygen
or of air (or both) and bleaching powder or other chlorinated bleaching salt or
chlorine (or both). When the oxygen or air or both is or are used in conjunction
with bleaching powder or similar agent the oxygen or the air or both is or are passed
under the requisite pressure into the mixture of bleaching solution and material to be
bleached the whole being preferably kept agitated in a potcher churn or other suitable
vessel or the oxygen or air or both may be passed into the bleaching bath in which
the material to be bleached is immersed or through which it is passed. The vessel
may be either open or closed and in the latter case the excess of oxygen (when
oxygen is used as such) may be led off for reuse in further operations.
When the oxygen or air or both is or are used in conjunction with chlorine the
oxygen or the air or both may be passed direct under the requisite pressure into the
chamber churn or other vessel in which the material to be bleached is being subjected
to the action of the chlorine or preferably the oxygen or the air or both may be
passed into the chlorine still in which chlorine is being generated (which may be
effected by any usual or suitable means) whence it (or they) and the chlorine pass
together into the bleaching chamber.
Oxygen may be used as above either where gas bleaching is being employed
or where the chlorine is passed into a mixture of water and the material to be
bleached.
The accompanying drawing illustrates in vertical section an apparatus adapted for
carrying out the operations according to this Invention which apparatus is one readily
adaptable to existing plant for bleaching paper stuff but it is given as an example and
we do not limit ourselves to the use of that particular apparatus.
a is a potcher or vessel containing the matter to be bleached and the bleaching
solution where such is used.
b is a cylinder with projections on its periphery and driven from any suitable prime
mover in the direction of the arrow X. c is an obstacle to facilitate the stirring of
the liquid and the mixing therewith of the oxygen or air or both which is or are
admitted by a pipe & perforated at the part which is inside the vessel A and protected
by the piece e. Through this pipe d the oxygen or air or both is or are forced by

page_text: any suitable forcing device so that it or they comes or come into contact and is or are
thoroughly agitated with the matter to be bleached. The vessel may be closed and
then any excess of oxygen there may be given off can be conducted away through a
pipe for reuse in the process or for other purposes.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to bo performed we declare that what
we claim is:-
1st. In bleaching the combined use of either oxygen or air or both together, and of
bleaching powder (or other chlorinated bleaching salt) or chlorine or both together
substantially as hereinbefore described.
2nd. In bleaching the combined use of either oxygen or air or both together and of
bleaching powder (or other chlorinated bleaching salt) or chlorine or both together
the whole being subjected to agitation in a potcher or vessel furnished with an
agitator and arranged substantially as hereinbefore described.
Dated this 1st day of June 1888.