Improvements in Electric Primary Batteries.
Year: 1891

page_text: Date of Application, 8th June, 1891
Complete Specification Left, 16th Sept., 1891-Accepted, 17th Oct-, 1891
PROVISIONAL SPECIFICATION.
Improvements in Electric Primary Batteries.
We, THOMAS JOSEPH DAVIS RAWLINS, of Lymington, Hampshire, Bank
Manager, and ARCHIBALD WALKER of Airedale, Belmont Road, Bristol do
hereby declare the nature of this invention to be as follows:--
The object of this invention is to prevent polarization in batteries by causing
the electrodes to be intermittently out of the exciting liquid. This is carried on
by forming the electrodes of disc shape and attaching them on an axle arranged
to be revolved. Near each end of the axle is a suitable contact arrangement
for the current: a convenient plan is a metal contact ring to which the electrodes
are connected, against this ring a brush to conduct the current, bears. This
brush is connected to a usual terminal. The axle is held in the most suitable
manner to be free from friction while revolving. The revolution of the axle
can be effected in any known manner by clock work or small electro motor.
Dated this 8th day of June 1891.
FREDERIC PRINCE,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Electric Primary Batteries.
We, THOMAS JOSEPH DAVIS RAWLINS, of Lymington, Hampshire, Bank
Manager, and ARCHIBALD WALKER of Airedale, Belmont Road, Bristol, 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 prevent polarization in batteries by causing
the electrodes to be intermittently out of the exciting liquid. This is carried on
by forming the electrodes of disc shapes and attaching them on an axle arranged
to be revolved. Near each end of the axle is a suitable contact arrangement
for the current: a convenient plan is a metal contact ring to which the electrodes
are connected, against this ring a brush to conduct the current, bears. This
brush is connected to a usual terminal. The axle is held in the most suitable
manner to be free from friction while revolving. The revolution of the axle
can be effected in any known manner by clock work or small electro motor.
To enable our invention to be properly understood we will proceed to describe
the same with aid of the accompanying drawings.
Figure 1. plan. Figure 2. sectional elevation. Figure 3 end view partly broken
away. Figure 4 sectional view of a part embodied in previous figures.
A is a suitable box or cell holder, B, the cells, across the box A and over
the cells, is an axle C held in any known manner to revolve with as little friction
as possible. Connected to this axle are the electrodes made in the form of discs
D being the carbon and E the zinc. The axle is made or covered with a non-
conducting material. F the electric leads or connections. On each end of the
axle preferably outside case A are electric contact rings G electrically connected
to the electrodes by the leads F. Against these rings a brush H bears, held by
and connected to a usual terminal I. When it is desired to remove the electrodes
out of the exciting liquid, the axle can be held in notches .J.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
In a primary battery, the use of revolving disc electrodes a part of which will
be always out of the exciting liquid as and for the purpose hereinbefore described
and illustrated by the accompanying drawings.
Dated this 16th day of September 1891.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, London, W.C., Agent for Applicants.