Magazines of Electricity.
Year: 1885

page_text: Magazines of Electricity.
We HENRY THAME and JAMES RAPER THAME, both of 3 Winders Road,
Battersea, in the County of Surrey, Electricians, do hereby declare the nature of
our invention for IMPROVEMENTS IN SECONDARY BATTERIES, ACCUMULATORS, OR
MAGAZINES OF ELECTRICITY to be as follows:-
This invention relates to improvements in the construction of secondary batteries,
accumulators or magazines of electricity.
In the construction of secondary batteries or accumulators as commonly made or
proposed to be made more or less complicated forms of lead plates, strips or pieces
perforated or reticulate are used or described or combinations of metals in various
forms either as means of retaining divided metal, salts of metal, oxides,. or
compounds.
According to our invention we form the lead for the elements of our improved
accumulators of tubes, or cylinders, of that metal set in series, by which means we
are enabled to overcome the tendency to warp, or bend, or lose their proper form
which such elements when formed of lead in the manner heretofore practiced have
developed in use.
The tubes of lead may be supported or set relatively by means of suitable
supporting means at their ends or other suitable parts and suitably arranged
electrical connections.
We do not confine ourselves to any particular section of tube round square or
other figure.

page_text: In Figure 4 the frame d is shewn with only one tube applied but it will be
understood that these tubes are packed as close as may be without actually being
in electrical contact one with another. In these figures a is the lead tube bis the
glass supporting (if glass be used for the purpose) or lead cylinder, if preferred
around which lead tape or band c is to be wound helically if desired and one end
may be passed therethrough as at c¹. d is the wood, ebonite or other suitable
retaining frame for a series of tubes to be arranged in a row therein and these
frames again in rows.
The form of tube a having an irregular or corrugated surface a¹ may be attained
as shewn by Figure 2 by the form given to the tube itself or by application of
ridges or helical windings to a tube or by an interior support or set of glass
forming a skeleton or frame on which (as Figure 3) to build up lead to approximate
to a tube of irregular surface, so as to afford increased holding surface as a means
of retaining thereto finely divided lead e or a compound of lead and oxide of lead
prepared and applied as is well understood the spongy lead, finely divided lead, or
compound of lead and oxide of lead e filling and occupying the space or channel
between each coil or thread on the tube.
The channels may be made undercut by using an appropriate section of wire,
band or strip, say of angular section, inclining inwards to its base-the tube.
In place of supporting or setting relatively the tubes or forms of tubular lead
by means of glass tubes other material of tube may be employed of suitable
nature.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that we
make no claim to the use of tubes formed as perforated retainers or containers of
spongy, finely divided, or salts of, lead but what we claim is :-
The methods or system of construction of tubular electrodes of lead.
The methods or constructions of tubular electrodes of lead having strengthening
parts of glass or similarly suitable material as set forth.
The construction of electrodes of secondary batteries or magazines of electricity
of tubular lead, or tubular supports having lead applied thereto, and plastered with
or carrying externally the active material such as spongy lead as set forth.
1
T 1
1000
Dated this 14th day of July 1880.
W BROOKES & SON,
Agents for the said Henry Thame
and James Raper Thame.