Improvements in Anodes employed in connection with the Electro- deposition of Metals.
Year: 1898

page_text: Date of Application, 2nd July, 1898
Complete Specification Left, 16th Dec., 1898-Accepted, 21st Jan.,
1899
PROVISIONAL SPECIFICATION.
Improvements in Anodes employed in connection with the Electro-
deposition of Metals.
I, FRED GREENFIELD, of 62, Byron Road, Small Heath, in the City of Birming-
ham, Manager of Department, do hereby declare the nature of this invention
to be as follows:-
This invention relates to anodes to be employed in connection with the electro-
deposition of metals, and consists in dispensing with the ordinary strip or plate
anodes, and employing in lieu thereof, frame anodes or anodes of the figure of a
pronged fork, whereby the conduction is greatly increased, and the deposition of
metal in the vat is greatly facilitated, whilst a like or nearly the same anode surface
is provided as where plate anodes are employed.
According to my invention, the anode consists of a bridge or cross bar, provided
with an upright strip terminated by a suspension hook for taking over the current
conducting rod of the vat. This bridge, which forms a cross lower end to the
hooked suspension rod, has a series of holes passing vertically through it, and
wherethrough the upper ends of a series of anode rods, strips, bars or
lengths pass and are there secured by binding screws or other means, which rods
or the like, with the cross bar, thus form an anode of the figure of a pronged
fork.
These rods are adjustable vertically to accomodate them to the work in hand,
or to the depth of the solution in the vat, and are easily replacable when eaten
away. The carrier frame of the rods may be coated with varnish, enamel or the
like, whilst direct metallic contact is preserved between the upper ends of the
rods and the sides of the holes or eyes through which they pass.
As a modification, instead of employing a carrier in the form of a cross bar, I
may employ a boss or ring, suspended by a hanger as before and with the anode
rods, strips, bars or the like arranged in a star figure or radially or fanwise there-
from and suitably secured in their adjusted positions.
As a further modification, the carrier may be made in the form of a rectangular
or other shaped frame, with hooks or rests upon which the anode rods are supported,
thus forming a barred or skeleton framing anode.
1
1000
Improvements in Anodes employed in connection with the Electro-
deposition of Metals.
I, FRED GREENFIELD, of 62, Byron Road, Small Heath, in the City of Birming-
ham, Manager of Department, do hereby declare the nature of this invention

page_text: and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:
This invention relates to anodes to be employed in connection with the electro-
deposition of metals, and consists in dispensing with the ordinary strip or plate
anodes, and employing in lieu thereof, frame anodes or anodes of the figure of a
pronged fork, whereby the conduction is greatly increased, and the deposition of
metal in the vat is greatly facilitated, whilst a like or nearly the same anode surface
is provided as where plate anodes are employed.
Figure 1 of the accompanying drawings represents an elevation of my improved
anode, but with the lower parts of the anode metal rods, which may be of any
desired length broken away.
Figure 2 is a topside plan of Figure 1, but with one end in horizontal section
upon the dotted line x.
Figure 3 is another view of the said anode, with the current-conducting and
carrier bridge in longitudinal vertical section.
Figure 4 is a vertical section of Figure 1, upon the dotted lines x¹.
Figure 5 represents a section of an electrolytic vat, provided with a series of
my improved anodes which are shown as when in use.
The same letters of reference indicate corresponding parts in the said Figures 1
to 5
vat.
According to my invention, the anode consists of a combined current-conducting
and carrier bridge or cross bar a, provided with an upright strip b, terminated by a
suspension hook 6', for taking over the current conducting rod c¹, of an electrolytic
This bridge, which forms a cross lower end to the suspension hook, has a
series of holes a¹, passing vertically through it, and wherethrough the upper ends d', of
a series of anode rods, strips, bars or lengths d, pass and are there secured, in this
arrangement, by binding screws e, passing through screwed holes a², in: the side
of the bar a, with their inner ends e, impinging against the rods d, and so clamp-
ing them against the opposite walls of the bar a, which rods or the like, with the
cross bar, thus form an anode of the figure of a pronged fork.
These rods are adjustable vertically to accommodate them to the work in hand, or
to the depth of the solution in the vat, and are easily replacable when eaten away.
The conducting bridge or carrier frame and suspension hook of the rods may be
coated with varnish, enamel or the like for protecting them from electrolytic action
but it is understood that direct metallic contact is preserved between the upper
ends of the rods and the sides of the holes or eyes of the bridge bar through which
-they pass.
Instead of employing a suspension hook or connection of the anode to the vat
rod which is a fixture relative to the conducting bridge bar, the said hook may be
swivelly connected. Such an arrangement is represented partly in section and
partly in elevation in Figure 6, in which a is the bridge part with a series of
anode rods d, adjustably and removably connected therewith by binding screws, or
otherwise, whilst b is the suspension hook whose shank 1, is swivelly connected to
the said bar a, thereby admitting of the anode being suspended within the vat in
any angular position relative to the conducting rod from which it is hung.
As a modification, instead of employing a carrier in the form of a cross bar, I may
employ a boss, ring or circular frame, suspended by a hanger as before and with
the anode rods, strips, bars or the like arranged in a star figure or radially or
fanwise therefrom and suitably secured in their adjusted positions.
being the carrier ring, the
Figure 7 represents one such arrangement, a
suspension hook and d the anode rods which are directed radially from the said
current-conducting carrier and are adjustably and removably secured thereto by
screws e.
In the arrangement Figure 8, the anode rods d, proceed fanwise from a sus-
pended current-conducting carrier bar a, to which they are adjustably connected
as before.
As a further modification, the current-conducting carrier may be made in the form

page_text: of a rectangular or other shaped frame, with hooks or rests upon which the anode
rods are supported thus forming a barred or skeleton framing anode.
Figure 9 represents a front elevation of this arrangement and Figure 10 is a
vertical section of the same upon the dotted line 2.
a is the carrier, in the form of a rectangular open frame, which may be coated
with varnish or other resist to protect it from electrolytic action, and is suspended
within a vat from the conducting rod c, either by means of wire hooks b, or by
means of a fixed or swivelling hook such as represented in the preceding arrange-
ments. The series of anode rods d, are disposed longitudinally across the frame
and are connected therewith by hook rests e, engaging over the rods with their
shanks e, passing through plain holes in the sides of the frame and being screwed
to receive clamping nuts e², at the back.
It is understood that the whole of the arrangements herein described may be
suspended by a swivelly-connected hook or its equivalent, such as represented in
Figure 6.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
First: An anode, consisting of a series of anode rods or equivalents, carried
by a hanger or carrier cross bar or current-conducting bridge, supported from the
current-conducting rod of an electrolytic vat, substantially as described and set
forth in Figures 1, 2, 3, 4, 5, 6 and 8.
Secondly: An anode, consisting of a series of anode rods or equivalents, adjust-
ably connected, by screws or the like, to a hanger or carrier cross bar or current-
conducting bridge, supported from the current conducting rod of an electrolytic
vat, substantially as described and set forth in Figures 1, 2, 3, 4, 5, 6 and 8.
Thirdly: The combination with the hanger or carrier cross bar or current
conducting bridge as referred to in the preceding claims, of a swivelly-connected
suspender, substantially as herein described and set forth.
Fourthly: An anode, consisting of a series of anode rods, carried by a hanger
current-conducting frame suspended from the current-conducting rod of an
electrolytic vat, substantially as described and set forth in Figures 7, 9 and 10.
day of December 1898
DALET VILIS Loth
VILIS LOUIL
ս
FRED GREENFIELD.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.