Improvements in or connected with Electric Primary Batteries.
Year: 1892

page_text: Date of Application, 27th Sept., 1892
Complete Specification Left, 27th June, 1893-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Electric Primary Batteries.
I THOMAS JOSEPH DAVIES RAWLINS of Lymington Hampshire Gentleman do
hereby declare the nature of this invention to be as follows:-
According to this invention the carbon or negative electrode is made disc shaped
and supported upon an axle arranged to be revolved so that a part of the electrode
is always out of the exciting fluid while it is being revolved. The zinc or positive
electrode remains continuously in the fluid. To connect the two electrodes together
a mercury trough is used electrically connected to the zinc; and connected to the
carbon is a copper disc which dips in the mercury. Any suitable power may be
utilised to revolve the carbon.
ca
1
1000
FREDERIC PRINCE,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with Electric Primary Batteries.
I, THOMAS JOSEPH DAVIES RAWLINS, of Lymington, County of Hampshire
Gentleman, 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 :-
According to this invention the carbon or negative electrode is made disc shaped
and supported upon an axle arranged to be revolved, a portion only of the electrode
dipping into the exciting fluid so that a part of them is always out of the fluid.
The zinc or positive electrode remains contínuously in the fluid.
To enable my invention to be properly understood I will proceed to describe the
same with aid of the accompanying drawings.
Figure 1 sectional view of a cell showing position of the electrodes.
Figure 2 plan view.
Figure 3 side view.
Figure 4 detached view of a part of the connections.
A the cells, a number of which are secured together in a suitable case or
otherwise, B the carbon electrodes, C the zinc. The shape of the latter is shown
by dotted lines in Figure 3, the plate being formed with tongues or projections D to
enable it to be supported on the edge of the cells. The carbons are carried upon a
spindle E insulated by a covering of gutta percha or other insulating material F.
The carbon discs for each cell are placed in electrical contact by a core G of lead
or other suitable metal. The mode of connecting the carbon electrodes with the
zinc to admit of the former being fully revolved with the least possible power is as
follows:-The lead or other core G, may be rather extended and have fitted on to
it a copper disc H, which dips into a mercury trough J electrically connected by a
wire K with the zinc in the next cell by an ordinary binding screw L.
By this
means no breakage is offered to the revolving of the carbons by the electrical
contact. The carbons can be revolved by clockwork, a small electric motor, or any
other suitable means. Ma washer of vulcanite to secure carbons in position on
spindle and prevent improper contact with the disc H.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the she is to be performed I declare that what I
claim is :-
1. An arrangement of primary electric battery in which the carbon electrodes are
held to be revolved without breaking contact with the zinc substantially as
described and illustrated by the accompanying drawings.
2. In an arrangement of electric battery of the character described connecting
the revolving carbons with the zines by means of a disc dipping into mercury which
is in electrical contact with the zinc, substantially as described and illustrated by
the accompanying drawings.
Dated this 27th day of June 1893.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, W.C., Agent for Applicant.