Improvements in Secondary Electric Batteries.
Year: 1896

page_text: Date of Application, 22nd July, 1896
Complete Specification Left, 22nd Apr., 1897-Accepted, 22nd May, 1897
PR
IONAL
CCIFICATION.
Improvements in Secondary Electric Batteries.
I, MARIE OSCAR ARMAND GARREAU, of 197 Avenue de Versailles, Paris, ia
the Republic of France, Electrician, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in secondary electric batteries; a battery
constructed in accordance therewith is composed of a reticulated frame of an alloy
of antimony and lead, the small rectangles of which are filled with bands or strips
of lead, corrugated and united, in order to facilitate the circulation of the liquid,
and of a length suitable to permit of the increase in bulk. These bands or strips
of lead are held in place by an autogenous solder placed over the bands or strips
midway in their length, the effect of which is to direct the swelling toward
the sides without straining the said bands or strips, or causing the frame to warp.
Each plate is surrounded and covered by paper-parchment in order to prevent
the slipping of the active material, also to avoid the possibility of free spaces being
formed between the plates, for, contrary to the general practice, these improved
plates are pressed against one another and separated only by a sheet of paper.
These plates are at each of their lower extremities provided with long legs or
supports, of an insulating material not affected by acidulated water, which rest
upon the bottom of the vessel; by this arrangement any short circuiting liable to
occur as a result of a fall of oxides is efficiently prevented.
The use of paper parchment for preventing the slipping of active material renders
the use of this mounting superfluous, the latter merely constitutes a further security.
The large surface which I provide on the top of this plate, permits a strong solder
joint, without electrical resistance to be easily made and unmade.
I may, of course, construct this accumulator in sizes that I consider suitable for
the purpose and may divide the frame work in as many compartments as I find
suitable for securing an efficient action of the apparatus, according to its various
applications. I may thus, for example, omit the central partition wall of the plate
and may form cells extending all along the width of the said plate. The bands
or strips of lead in the interior of these cells will always be fixed at their centres
by a solder joint formed at the centre of the plate.
Dated this 22nd day of July 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
1, MARIE OSCAR ARMAND GARREAU, of 197 Avenue de Versailles, Paris, in
the Republic of France, Electrician, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described aud
ascertained in and by the following statement:-
This invention relates to improvements in secondary electric batteries and is
represented by way of an example in the accompanying drawing, in which
Figure 1 is a front elevation and

page_text: The improved secondary battery is composed of a reticulated frame of an alloy
of antimony and lead A the small rectangles of which are filled with bands or strips
of lead bc of a flat or corrugated shape, in order to facilitate the circulation of the
liquid, and of a length suitable to permit of the increase in bulk. These bands or
strips of lead are held in place by an autogenous solder D convecting the edges of
the bands or strips midway of their length, the effect of which is to direct the
swelling toward the sides without straining the said bands or strips, or causing the
frame to warp.
Each plate is surrounded and covered by paper-parchment E in order to
prevent the slipping of the active material, also to avoid the possibility of free
spaces being formed between the plates, for, contrary to the general practice,
these improved plates are pressed against one another and separated only by a sheet
of paper.
These plates are at each of their lower extremities provided with long legs or
supports, G of an insulating material not affected by acidulated water, which rest
upon the bottom of the vessel; by this arrangement any short circuiting liable to
occur as a result of a fall of oxides is efficiently prevented.
The use of paper parchment preventing the slipping of active material renders
the use of this mounting superfluous, the latter merely constitutes a further
security.
The large surface H which I provide on the top of this plate, permits of a
strong solder joint, without electric resistance, to be easily made and readily
detached.
I may, of course, construct this accumulator in sizes that I consider suitable for
the purpose and may divide the framework in as many compartments as I find
suitable for securing an efficient action of the apparatus, according to its various
applications. I may thus, for example, omit the central partition wall of the plate
and may form cells extending all along the width of the said plate. The bands or
strips of lead in the interior of these cells will always be fixed at their centres by a
solder joint formed at the centre of the plate.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An improved secondary electric battery having the characteristic feature, that
the frame work forming the principal body of the battery and serving to convey the
current across the electrode, is combined with a series of leaden bands or strips,
united at the centre by solder-joint and capable of freely swelling or increasing
in bulk.
2. In secondary electric batteries of the kind referred to in the first claim, the
use of paper-parchment, surrounding the plates, and serving to prevent the active
material from slipping.
3. The arrangement of insulating supports not affected by acidulated water and
serving to prevent the current from being partly shunted in the bottom of the
receptacle.
4. The whole constructional combination of the battery and each separate
constituent part thereof, substantially as described.
Dated this 22nd day of April 1897.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.