Improvements in Apparatus or Means for Collecting and Removing from Pickling Vats the Scale or Magnetic Oxide Removed from the Plates Subjected to the Pickling Process
Year: 1899

page_text: Date of Application, 7th July, 1899
Complete Specification Left, 6th Mar., 1900-Accepted, 7th Apr., 1900
Improvements in Apparatus or Means for Collecting and Removing
from Pickling Vats the Scale or Magnetic Oxide Removed from the
Plates Subjected to the Pickling Process.
•
I, SHERARD OSBORN COWPER-COLES, of 26 and 27, Grosvenor Mansions,
Victoria Street, in the City of Westminster, Engineer, do hereby declare the
nature of this invention to be as follows:-
The object of this invention is to prevent dissolution, by the acid employed in
pickling yats, of the scale or magnetic oxide removed from the plates subjected
to the pickling process, whereby economy in the consumption of acid is obtained.
According to my invention I insert in the pickling liquid a scale collector con-
sisting of an electro-magnet enclosed in a casing of brass or copper or other
suitable material which is not subject to the deteriorating action of the pickling
liquid. The casing of the magnet is connected to the lower end of a tube
through which the wires from the electro-magnet pass to terminals on a bar
to which the upper end of the tube is connected and by which bar the collector
can be suspended from the cover or the sides of the vat or in any other convenient
mannor in any desired part of the pickling liquid. To the terminals are con-
nected the leads from a dynamo or other source of electricity so that a current of
the necessary electro-motive force can be circulated through the enclosed electro-
magnet which will cause the scale or magnetic oxide removed from the plates
placed in the vat to be attructed by, and caused to collect on the casing of the
said electro-magnet. The collector may be removed from the vat, at suitable
intervals and the scale adhering thereto be removed therefrom by breaking the
circuit through the magnet or by scraping brushing or other suitable means.
Dated this 7th day of July 1900
JOHNSONS & WILLCOX,
47, Lincolns Inn Fields, London, W.C., Agents..
COMPLETE SPECIFICATION.
Improvements in Apparatus or Means for Collecting and Removing
from Pickling Vats the Scale or Magnetic Oxide Removed from the
Plates Subjected to the Pickling Process.
I, SHERARD OSBORN COWPER-COLES, of 26 and 27, Grosvenor Mansions,
Victoria Street, in the City of Westminster, 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:-
The object of this invention is to provide efficient means to prevent dissolution,

page_text: by the acid employed in pickling vats, of the scale or magnetic oxide, removed
from the plates subjected to the pickling process, whereby economy in the con-
sumption of acid is obtained.
According to my invention I insert in the pickling liquid a scale collector
consisting of an electro-magnet enclosed in a casing of brass, or copper, or other
suitable material, which is not subject to the deteriorating action of the
pickling liquid. Figure 1. of the accompanying drawing illustrates in elevation
(with part broken away to shew the interior) a device according to my invention,
and Figure 2 is a diagram shewing the winding of the electro magnet. A is the
electro magnet and B is the casing in which it is enclosed. The said casing B
is connected to the lower end of a tube C through which the wires ff from the
electro-magnet A pass to terminals d d on an insulating, or insulated, bar D
to which the upper end of the tube, C is connected and by which bar the collector
can be suspended (as by an eye c) from the cover, or the sides of the vat,
or in any other convenient manner, in any desired part of the pickling liquid.
To the terminals are connected the leads ff from a dynamo, or other source of
electricity, so that a current of the necessary electro-motive-force can be circulated
through the coil, or coils, of the enclosed electro-magnet A which as its poles are
connected up as shewn in Figure 2 the electro magnet thus having consequent
poles whereby the field is so distributed as to cause the scale or magnetic oxide,
removed from the plates placed in the vat, to be attracted by, and caused to collect
upon the whole, or practically the whole of the casing B of the said electro-
magnet. The collector may be removed from the vat at suitable intervals and
the scale or magnetic oxide adhering thereto be removed therefrom by breaking
the circuit through the magnet, or by scraping, brushing, or other suitable means.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I
claim is-
-
1. For the purpose described an electro-magnet enclosed in a casing and pro-
vided with means for passing an electric current through the magnet coil or coils,
to attract and cause to adhere, to the casing scale, or magnetic oxide, as herein-
before explained.
2. For the purpose described an electro magnet having consequent poles,"
enclosed in a casing and provided with means for passing an electric current
through the magnet coils to attract and cause to adhere to the casing, scale or
magnetic oxide as herein before explained.
3. For the purpose described a device constructed as herein before described
and illustrated in the accompanying drawing.
Dated this 6th day of March 1900
JOHNSONS & WILLCOX,
47, Lincolns Inn Fields, London, W.C., Agents.