Improvement in the Construction of the Lead Lining or Casing of Cells or Boxes of Electric Storage Batteries.
Year: 1894

page_text: Date of Application, 14th Sept., 1894
Complete Specification Left, 14th June, 1895-Accepted, 20th July, 1895
PROVISIONAL SPECIFICATION.
Improvement in the Construction of the Lead Lining or Casing of
Cells or Boxes of Electric Storage Batteries.
I JOHN EVELYN LIARDET of 16 Hyde Park Gate in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to construct the lead linings of the cells or boxes
for electric storage batteries so that they shall not be liable to leak as is at present
the case when the lining is put in the cells or boxes in pieces.
According to this invention I cast the lead lining in one piece by which a
perfectly water tight vessel is obtained.
One way of carrying out this invention is to have an iron vessel of the required
size and shape of the cell or box it is desired to line and into this iron vessel is
placed an iron core of such size as to leave a space between this latter (all round)
sufficient for the desired thickness of the lead lining the said core is provided with
lugs near the top so as to support it on the aforesaid iron vessel in order to leave
sufficient space at bottom for the thickness of lead to form the bottom lining.
Molten lead is then run in between the aforesaid iron vessel and the core, and
when cold the core is withdrawn and the lining taken out of the vessel in the form
of a perfect leaden cell, which is placed in the outer battery cell and forms the
lead lining.
.
Dated this 14th day of September 1894.
BROWNE & Co.,
9 Warwick Court, Gray's Inn, W.C., Agents for the Applicant.
Improvement in the Construction of the Lead Lining or Casing of
Cells or Boxes of Electric Storage Batteries.
1 JOHN EVELYN LIARDET of 16 Hyde Park Gate in the County of
Middlesex, Engineer, 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 :—
The object of this invention is to construct the lead linings of the cells or boxes
of electric storage batteries so that they shall not be liable to leak, as is at present
the case when the lining is put in the cells or boxes in pieces.
According to this invention I cast the lead lining in one piece by which a
perfectly water tight vessel is obtained.
One way of carrying out this invention is to have an iron vessel of the required
size and shape of the cell or box that it is desired to line and into this iron vessel
is placed an iron core of such size as to leave a space between this latter (all round)
sufficient for the desired thickness of the lead lining. The core is provided with
lugs near the top, so as to support it on the aforesaid iron vessel, in order to leave
sufficient space at the bottom for the thickness of lead to form the bottom lining.

page_text: Molten lead is then run in between the aforesaid iron vessel and the core, and
when sufficiently cool the core is withdrawn and the lining taken out of the vessel
in the form of a perfect leaden cell, which is placed in the outer battery cell, and
forms the lining.
And in order that my said invention may be better understood I will now refer
to the drawings accompanying this Specification in which
Figs. 1 to 5 shew the construction of an outer iron vessel suitable to the carrying
out of my invention, Fig. 1 shewing the bottom plate, Figs. 2 and 3 the sides and
Figs. 4 and 5 the ends.
Fig. 6 is a plan of the iron core to be placed within the iron vessel, Fig. 7 is an
elevation of the same and Fig. 8 an end elevation shewing the relative positions of
the core and outer vessel when the apparatus is in use, the shape and position of
the outer vessel being indicated by dotted lines in this last view.
The same letters denote the same parts in all the views.
a shews the outer iron vessel and lugs on the same to facilitate the fixing
together of the parts. c shews the inner iron core provided with hinged slings d.
The core c has also lugs e, which being secured by bolts to the outer vessel a
support this core at the correct distance above the bottom of the outer vessel a
so as to leave sufficient space for the required thickness of lead lining.
It will be seen that the core e being placed within the vessel a a space will be
left all round between the two owing to the core being smaller outside than the
inside of the iron vessel a. The lead lining may then be formed by running molten
lead between the outer iron vessel and the core, this latter being withdrawn when
the whole is sufficiently cool. The lead lining is thus cast in one piece.
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. In electric storage batteries, the entire lining being formed of one piece of
lead, for the purpose set forth.
2. The improvement in the construction of the lead lining or casing of cells or
boxes of electric storage batteries, substantially as and for the purpose set forth.
Dated this Fourteenth day of June 1895.
BROWNE & Co.,
9 Warwick Court, Gray's Inn, Agents for the Applicant.