An Improved Process for the Manufacture of Electrode Plates for Storage Batteries.
Year: 1897

page_text: Date of Application, 31st July, 1897
Complete Specification Left, 29th Apr., 1898-Accepted, 18th June, 1898
An Improved Process for the Manufacture of Electrode Plates for
Storage Batteries.
I, CARL MARSCHNER, of 1, Winterfieldstrasse, Berlin W, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention to be as
follows:
This invention relates to a process for manufacturing electrode plates for storage
batteries.
In Patent No. 12250 of 1896 there is described a process for the manufacture
of electrode plates for accumulators, which consists in adding a solution of amber
to the "active" material, as a cement. In that specification it is also stated that
a mixture of alcohol and turpentine oil should be used as solvent in preparing the
said mixture. Now it has been ascertained in practice that the best solvent for
the object named is di-chlorhydrin. The amber solution, now employed contains
1 kilogramme of amber chips to every 5 kilogrammes of di-chlorhydrin. Of this
solution 1 part (by volume) is mixed with five parts (by volume) of alcohol, and
the red lead is stirred with this mixture until the desired degree, of consistency
is attained. Instead of di-chlorhydrin, epi-chlorhydrin may be used. The effect
of this addition of di-chlorhydrin, or epi-chlorhydrin, as the case may be, is,
that the firmness and tenacity of the exciting material are greatly enhanced, so
that the plates are more durable and less sensitive to shocks and fluctuations of
current.
Dated this 21st dow of Tu1 1907
An Improved Process for the Manufacture of Electrode Plates for
Storage Batteries.
I, CARL MARSCHNER, of 1, Winterfeldstrasse, Berlin W, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention, and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
The present invention relates to a process for producing plates for electric
accumulators and has particular reference to the production of plates of the kind
which are filled with active material in the form of a plate.

page_text: The improved process consists essentially in using as a binding medium for
the accumulator paste, dichlorhydrine or epichlorhydrine in combination with
amber.
The process is carried into effect in the following manner:
1 kilo of amber chips are dissolved in 5 kilos of di- or epichlorhydrine. Of
this solution about 01 part by volume is mixed with 5 parts by volume of alcohol
and this solution is then used as a binding medium for the red lead of which the
paste is made.
A quantity of the binding medium sufficient to form a thick paste is then taken
and this paste is spread into the lead frame. In order to diminish the weight of
the plate I use lead frames instead of the lead gratings heretofore generally
employed.
The paste is then simply spread in the lead frame, and then pressed in a press
adapted for the purpose and perforated with pins or points.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
. 1. A process for the production of accumulator plates, characterized by the use,
as a binding medium for the accumulator paste, of dichlorhydrine or epichlor-
hydrine in combination with amber, which is dissolved in the dichlorhydrine or
epichlorhydrine.
2. The mixture and production of the binding medium, distinguished by dis-
solving in 5 kilos of epi- or dichlorhydrine 1 kg. of amber, and the mixing of 0*1
part by volume of this solution with 5 parts by volume of alcohol, this mixture
being added to the active material to form a paste.
002
1 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.