Improvements in and connected with Electric Primary Batteries.
Year: 1891

page_text: Date of Application, 30th June, 1891
Complete Specification Left, 29th Mar., 1892-Accepted, 30th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Electric Primary Batteries.
1, THEOPHILUS COAD, of 52 Chancery Lane, London, W.C., Electrician, do
hereby declare the nature of this invention to be as follows:-
This invention primarily consists in suspending the positive electrode in a new
way to cause contact and in details of connection for both electrodes preferably in
single fluid batteries.
According to this invention each cell is made separate and a desired number
cemented in a suitable holding case. On each side or inside of each cell a strip of
carbon is cemented, against a platinim or other suitable stud for contact purposes.
The platinum or other contact piece may be on the side and a projection or
shoulder made on the positive electrode so that the latter may rest upon it, and to
ensure perfect contact a spring arrangement may be put in the cover to press the
zinc on the contact part. To carry the connection from the zinc in one cell and to
economise platinum, the latter contact points may be soldered on to copper wire.
The carbon may have a piece of vulcanite at bottom to prevent the zinc touching
it in working.
Dated this 30th day of June 1891
FREDERIC PRINCE,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Electric Primary Batteries,
I, THEOPHILUS COAD, of 52 Chancery Lane, London, W.C., Electrician, 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 each cell is preferably made separate, and a desired
number to form a battery cemented in a suitable holding case. On two sides of
inside of each cell a plate of carbon is cemented or attached, and both electrically.
connected; between these two plates of carbon the zinc is held as hereafter
described.
The salient feature of this invention relates to a simple device for connecting
the zinc electrode without the use of wires and binding screws. According to this
part the invention relates to so arranging a battery that the zinc can by a shoulder
or projection be hung in each cell, a portion of the zinc resting upon the end of a
wire which serves to electrically connect it to the carbon.
To enable my invention to be properly understood, I will proceed to describe the
same with aid of the accompanying drawings, which illustrate the invention as
applied to a single fluid battery.
Figure 1 illustrates a sectional elevation of a battery according to this
invention:
Figure 2 a sectional end view of same:
Figure 3 a plan :
Figure 4 a diagram showing the manner of connecting the electrodes.
A, is a case preferably of wood; and for strength has angle metal corners B,
screwed on to same; within this case is secured a number of separate cells C, by
intermediate cement E. To two sides of the inside of each cell C, is attached by
cement or otherwise a carbon plate F, having a stud G, near bottom of a non-con-
ducting material to keep the zinc H, from contact. The zinc is suspended in the
[ Pains 877

page_text: following manner :-Fitting round the inside of case A, is a collar of vulcanite J,
with notches or recesses for the zinc and carbons to be inserted; at the bottom
of the notches for the zinc on one side is a contact end of a wire K, for one of the
projections H, of the zinc to rest upon when the zine is inserted.
This contact end of the wire K, is preferred to be platinum, which for economy
is soldered on to copper wire, this is carried round the outside of the cells in a
recess L, of the case A, and electrically connected to the carbons of the next cell,
and so throughout all the cells. The carbons are connected together in each cell
by a wire M, properly free and clear of the zinc wires K.
This manner of connecting is best seen at Figures 2 and 4. These connecting
wires lay in the recess L, and are covered by a fitted in piece N. The top of the
case A, is closed by a cover P, having a layer of india rubber Q, underneath; this
cover is secured by a cross piece of metal or plate R, and thumb screws S, engaging
hooks T, attached to side of battery.
From the above it will be readily understood that the carbons are permanently
secured in their cells, and each two connected together by the wires M; and that
so long as the part H¹ of the zinc rests upon the end of wire K, the connection of
the zinc with the carbons is certain and continuous.
When a zinc is worn out, the upper portion is drawn out, and a fresh zinc
dropped in which connects itself when it meets and rests upon the end of
wire K.
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 :-
1-A primary battery, constructed as before described, and illustrated by the
accompanying drawings.
2-In a primary battery, the method of connecting the zinc or positive electrode
with the carbon, consisting of the zinc being hung in the cell by projections or
shoulders, one of which rest upon a contact wirelectrically connected to the
carbon, as described and illustrated by the accompanying drawings.
Dated this 29th day of March 1892.
FREDERIC PR.
CE,
1, Quality Court, Chancery Lane, Len, Agent for Applicant.