Improvements in Galvanic Batteries.
Year: 1895

page_text: Date of Application, 22nd Jan., 1895-Accepted, 16th Mar., 1895
COMPLEIE DI MUITICATION.
Improvements in Galvanic Batteries.
We, CHARLES BERNHARDT SCHOENMEHL, Electrician and CLARK MURRAY
PLATT, Manufacturer of Waterbury, in the County of New Haven, and State
of Connecticut, United States of America, 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 :-
Upon the drawings 1 denotes a suitable jar which may be of any preferred
construction, and preferable of glass, 2 denotes the cover which is made of
In the centre of
porcelain or other suitable material and of the shape shown.
the covering 2 we provide a suitable opening 3 in which may be placed the
usual zinc stick 4 having a suitable binding screw 5 of the ordinary construction,
said stick serving as one pole of the battery. The lower periphery of the cover
has a ledge 6 for the purpose of snugly fitting upon the jar, as shown in
Figure 1.
The carbon pole of the battery is integral with the cover and with it, consists
of a circular series of carbons 7 which may be of any preferred formation, said
carbons being arranged so as to be exposed upon all sides to the fluid in the
jar, and not exposing the metallic connection between them. The porcelain cover
which is a part of the pole, may be formed as shown in Figures 5 or 6, each
having an annular recess 8 for the purpose of receiving the ends of the carbons 7,
and lead or other suitable metal 9. In Figures 1 and 5 inclusive it will be seen
that this recess is formed upon the periphery and extends well into the cover,
having a series of openings from the bottom and connecting therewith, through
which the ends of the carbons 7 are inserted, and wherein they are held by the
application of molten metal, which when cold serves to secure them firmly within
said position.
Upon the underside of the top of the cover and within the recess we provide a
series of shallow bores 12 which register with the openings .10 in the base of the
cover, these bores as will be apparent are for the purpose of receiving the ends of
the carbons and retaining them at a perfect right angle to the cover while the
metal is being inserted. It will be observed that the metal connections within the
cover and between the carbons are not exposed to the interior of the jar, or to
the top of the cover, thus protecting it from the fluid, gases &c.
In Figure 6 the metal is entirely encased on all sides and is in no way exposed
to the acid or atmosphere. A suitable metallic-connection would be made through
the top of the cover to a binding screw 11, which could readily be done by a small
hole being formed in the cover when made, and the binding post screwed through
and into the metal when completed, or the post may be secured to the side of the
cover as shown in Figure 5.
It will be clearly seen from the above devices that by the enclosure of the metal
within the cover said metal is preserved against corrosion thereby lengthening the
life of the battery. Corrosion is a common occurrence among many batteries of
this class, when water, acid, and gases are permitted to come into direct contact
with the metal, as will be appreciated by those skilled in the art.
The manufacture of this battery is simple and inexpensive, and consists first in
providing the cover with a suitable annular recess as shown, and an opening or a
series of openings through the bottom of the cover and into the recess, next placing
the carbons in position within said openings, then fitting a separable ring around

page_text: the annular recess of the cover, after which the cover is ready and receives its
molten metal within the recess and around the carbon. Said metal will quickly
cool and harden, thereby retaining the carbons in position.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
consider novel and desire to claim is :-
:-
:
1. As a new article of manufacture a carbon pole of a battery which consists of
an insulated cover, having an internal annular recess, openings through the bottom
of the cover into said recess, a series of carbons having their heads extended into
said recess, cast metal within and filling said recess for the purpose of retaining
the carbons and serving to complete the electrical connections between said
carbons, substantially as described and for the purpose specified.
2. In a carbon pole, of a battery of the class described, the combination in
an insulated top, of an annular recess within said top, a series of openings
extending through the underside of the top into the recess, carbons arranged within
said openings with their ends in the before mentioned recess, and metal-within
the recess and surrounding the ends of the carbons whereby they are retained and
the metal connection between the carbons secured.
3. In a battery of the class described, the combination in an insulated cover,
of a peripheral annular recess within said cover, a series of openings extending
through the underside of the cover into the annular recess, a series of hores
extending into the top from the recess and registering with the before mentioned
openings, carbon sticks arranged within said openings with their ends extending
through the before mentioned recess and into the bores, metal within the recess
and surrounding the ends of the carbons whereby they are retained and their
metallic connection completed.
Dated this 21st day of December 1894
CHARLES BERNHARDT SCHOENMEHL.
OLARK MURRAY PLATT.
H. D. Fitzpatrick,
70, Wellington Street, Glasgow, Agent.
HARLES BERNHARDT SCHOENMEHL.
LARK MURRAY PLATT.
H. D. Fitzpatrick,
70, Wellington Street, Glasgow, Agent.