Improvements connected with or Applicable to Baths or Vessels Containing Liquids used in Electro-plating or Dyeing, or the Electrolyte of Storage Batteries and the like.
Year: 1889

page_text: Improvements connected with or Applicable to Baths or Vessels
Containing Liquids used in Electro-plating or Dyeing, or the
Electrolyte of Storage Batteries and the like.
We, EDWARD HOPKINSON of Salford Iron Works, Manchester in the County of
Lancaster Engineer and DaviD APPLETON of 28 George Street, Cheetham Hill,
Manchester aforesaid Electro-plater do hereby declare the nature of this Invention to
be as follows:-
The object of our Invention is to provide means for obtaining a uniform strength of
liquor in baths or vessels containing dyeing liquids or electrolytes for batteries or the
like.
In order to accomplish this we use an air pump and lay along the sides or bottoni
of the bath or vessels perforated pipes through which the air is forced. By this means
the liquor at the bottom or lower portion of the bath is forced upward thereby causing
the liquor in the bath to be constantlyagitated and kept of uniforin density throughout.
Consequently when used in connection with baths for the electrical deposition of
metals much more powerful dynamos can be used thereby causing a thicker and more
even deposit in a shorter time. The liquor being agitated overcomes the difficulty of
lepositing the metal in the form of a black powder or sandy deposit and preventing
the deposit from splitting or curling up or burning at the edges.
With dye becks or cisterns this arrangement overcomes the difficulty of uneven
depth of colour due to the dye liquor not being of the same density and quality
throughout.
When applied to electric accumulators or storage batteries the results obtained are
better as the action of the acid on the plates is then more uniform and the plates last
longer and satisfactorily.
Dated this 20th day of Sutamon 1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improvements connected with or Applicable to Baths or Vessels
Containing Liquids used in Electro-plating or Dyeing, or the
Electrolyte of Storage Batteries and the like.
We, EDWARD HOPKINSON of Salford Iron Works, Manchester in the County of
Lancaster Engineer and DAVID APPLETON of 28 George Street, Cheetham Hill,
Manchester aforesaid Electro-plater 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:-
The object of our Invention is to provide means for obtaining a uniform strength of
liquor in baths or vessels containing dyeing liquids or electrolytes for batteries or other
purposes. In order to accomplish this we use an air pump or equivalent air forcing
device and lay along the sides or bottom of the bath or vessel perforated pipes through
which the air is forced. By this means the liquor in the bath or the like is caused to
be constantly agitated and kept of uniform density throughout and any bubbles of gas
accumulating on the electrodes are removed.
Figure 1 of the accompanying drawing is a longitudinal section and Figure 2 is a
transverse section of a vessel or bath suitable for use in dyeing or for the refinement
of copper or for similar purposes and provided with means whereby our Invention can
be carried into effect.and Figures 3 and 4 are similar views of a vessel or bath suitable
Price St.1

page_text: for electro-plating purposes and provided with similar means according to our
Invention.
An air pump or equivalent air forcing device is connected to a pipe A with whiel
pipe A are connected the perforated pipes a situated along the sides and bottom of the
bath or vessel C. The air is forced by the pump through the orifices in the pipes a
whereby the liquor at the bottom or lower portion of the bath or vessel is forced
upwards with the effects stated.
When this Invention is used in connection with baths for the electrical deposition of
metals much more powerful dynamos can be used than hitherto thereby causing a
thicker and more even deposit in a shorter time. The liquor being agitated overcomes
the difficulty of the metal depositing in the form of a black powder or sandy deposit
and prevents the deposit from splitting or curling up or burning at the edges.
When used with dye becks or cisterns this arrangement prevents uneven depths of
colour in the goods which uneven depths of colour have hitherto been due to the dye
liquor not being of the same density and quality throughout.
When the Invention is applied to electric accumulators or storage batteries the
results obtained are better than in such accumulators or batteries unprovided with this
Invention as the action of the acid on the plates is more uniform and the plates last
Jonger and work more satisfactorily when this Invention is employed therewith.
"
In the expression airwe include any gas which will have the same effect when
passed into the liquid in the bath or vessel.
Having now particularly described and ascertained the nature of the said Inven-
tion and in what manner the same is to be performed we declare that what
we claim is:-
In combination with baths or vessels used in electro plating, refining copper or
other analogous processes or with dye becks or like vessels used in dyeing or with
electric accumulators or storage batteries or like baths of vessels an air pump or
equivalent air forcing device communicating with perforated pipes or outlets for the
air in the said baths or vessels substantially as and for the purposes hereinbefore
described.
Dated this Nineteenth day of June 1889.
EDWARD HOPKINSON.
DAVID APPLETON.