IMPROVE- MENTS IN SECONDARY BATTERIES PARTLY ALSO APPLICABLE TO PRIMARY BATTERIES
Year: 1884

page_text: I, GEORGE GUILLAUME ANDRÉ of Havelock Cottage Dorking in the County of
Surrey Electrician do hereby declare the nature of said Invention for "IMPROVE-
MENTS IN SECONDARY BATTERIES PARTLY ALSO APPLICABLE TO PRIMARY BATTERIES"
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
In my Provisional Specification dated 9th January 1884 N° 1100 I have
described improvements in primo secondary batteries whereby the electro negative
elements are removed or removable from the cell and packed and sent to the
charging station and after having been there charged are then returned and
replaced in the cell whereupon the battery is ready for action again. As the cell
with its liquid and other contents are not removed from the place of action but
merely the negative elements a great advantage and convenience result from this
arrangement. In the same Patent application I also described a form of negative
element having a wooden or other suitable non-conducting core to support the lead
wrapped round it. Now according to this present invention I. extend and apply
the same principle of easy portability to the construction of secondary batteries
and I also make use of or adapt substantially the same form of element with
wooden core for secondary batteries.
And in order that my invention may be more fully understood I will now
describe the same with reference to the accompanying drawings which illustrate
one form or construction of battery. Figure 1 being a vertical longitudinal section
and Figure 2 a plan of same Figure 3 is a sectional part end elevation showing the
wooden frame for holding the elements Figure 4 is a side view and Figure 5 a
cross section of a wooden element core Figure 6 is a side view and Figure 7
a plan section showing the core lapped round with sheet lead and Figure 8 is
a side view and Figure 9. a cross section of the complete element covered with
lead and then with canvas or calico tape or other suitable porous non conducting
material.
A number of elements are in this form of battery placed and held in a wooden
wooden
frame so as to be bodily removable therewith. Each element consists of
core A see Figures 4 and 5 which in the first instance is soaked in liquid paraffin
wax and lapped round with a layer B of sheet lead or wire see Figures 6 and 7
and then with tape C see Figures 8 and 9. On referring to Figure 1 it will be
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page_text: observed that the positive and negative elements are respectively and alternately
made longer and shorter for the purpose of conveniently connecting all the long
elements together with one pole and all the short elements together with another
pole and in such manner that the positive connections are prevented from making
contact with the negative connections. An important feature in this form of
battery is this that the length of the elements or the depth of the cell may be
extended very considerably thus saving floor space or shelf space. This is chiefly
owing to the circumstance that each element is supported in the manner described
by the wooden core A and that the lead B is held firmly and without possibility of
being displaced or bulging in places and that the elements are all held at definite
distances apart and held firmly together in one and the same frame. The elements
are here shown arranged in two sets, each set in a wooden frame. Each frame
consists of a bottom plate D, Figures 1 and 3, and two end pieces E, E which are
formed with holes E' for readily lifting the frame by the fingers or by special
iron hooks or prongs inserted in such holes. The side pieces E are moreover united
by cross piece or plate F near the top. The elements are held in place by recesses
in the bottom flange and by holes through 'the cross piece F. They will thus be
kept sufficiently apart so as not to interfere with each other and are at the same
time separately removable for renewal of the metallic layer B or textile envelope C
as required. The cores A are here shown circular in section but might if desired
be made of any other suitable form such as that of flat plates or of any inter-
mediate section. The frames containing the elements are placed in a box or cell
which may be made of wood or other suitable material and which may have an
inner waterproof lining H of lead or insulite, I, I are rings provided for carrying
the box G. The holding of the positive and the negative elements in a removable
frame is also applicable and useful in primary batteries. The employment of cores
of different lengths for the purpose of convenience of connection is also applicable.
and useful for primary batteries. The peroxide of lead which is formed on the
surface of the lead B is held in place by the canvas. The liquid may as usual be
water acidulated with sulphuric acid.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
First: A secondary battery cell having its elements A B C with a frame for
holding them bodily removable therefrom so that they can be sent to the charging
station and there charged (and not in the cell) and that when thus charged and
then returned and replaced in the cell the battery shall be ready for action again
thus avoiding the transport of the whole battery with its liquid contents sub-
stantially as set forth.
Second-In primary and secondary batteries the positive and negative elements
having cores A of different lengths for the. convenience of connection of the
positive and of the negative electrodes and placed in removable frames DEF
substantially as set forth.
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