Improvements in the Manufacture of Leclanche Cells.
Year: 1891

page_text: Date of Application, 21st Feb., 1891
Complete Specification Left, 21st Nov., 1891-Accepted, 24th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Leclanche Cells.
I, DAN RYLANDS of Stairfoot near Barnsley in the County of York Glass Bottle
Manufacturer do hereby declare the nature of this invention to be as follows:-
My invention has for its object the manufacture of Leclanche cells in such a way
that the porous pot is retained in the centre of the glass or earthenware cell. In
carrying out my invention I first blow, (in a bottle-making machine worked on the
principle of pressing and blowing) a Leclanche cell of any required size, and whilst
the bottom of the bottle is still in a plastic condition I introduce a plunger so as to
form a circular depression in the centre of the inside of the bottom which circular
depression is of such a size that it receives the bottom of the porous pot and holds
the same in perpendicular position so that the top part of the porous pot does not
touch the inside of the mouth of the Leclanche cell. In some cases, where an extra
depth is required, I form a glass cup the inside diameter of which corresponds
with the outside diameter of the porous pot to fit inside the depression
formed in the bottom of the Leclanche cell so as to better: keep the porous
pot in a perpendicular position. Another way of attaining my object is to make or
form a suitable hole on the underside of the porous pot or to suitably indent the
bottom of the porous pot and to form on the inside of bottom of the glass cell a
raised projection to fit into such indentation.
DAN RYLANDS.
COMPLETE SPECIFICATION..
Improvements in the Manufacture of Leclanche Cells.
1, DAN RYLANDS of Stairfoot near Barnsley in the County of York Glass Bottle
Manufacturer 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 :-
My invention has for its object the manufacture of Leclanche cells in such a way
that the porous pot is retained in the centre of the glass or earthenware cell. In
carrying out my invention I first blow, (in a bottle-making machine worked on
the principle of pressing and blowing) a Leclanche cell of any required size,
and whilst the bottom of the bottle is still in a plastic condition introduce a
plunger so as to form a circular depression in the centre of the inside of the
bottom which circular depression is of such a size that it receives the bottom
of the porous pot and holds the same in perpendicular position so that the top
of the porous pot does not touch the inside of the mouth of the Leclanche cell.
In some cases, where an extra depth is required, I form a glass cup the inside
diameter of which corresponds with the outside diameter of the porous pot to
fit inside the depression formed in the botton of the Leclanche cell so as to
better keep the porous pot in a perpendicular position. Another way of
attaining my object is to make or form a suitable hole on the underside of the
porous pot or to suitably indent the bottom of the porous pot and to form on
the inside of bottom of the glass cell a raised projection to fit into such
indentation.
In the accompanying drawing
Figs. 1, 2 and 3 are elevations in section showing different methods of carrying

page_text: Referring to Fig. 1, a is a Leclanche cell-made by a bottle making machine worked
on the pressing and blowing system. After the cell has been removed from the
bottle making machine and whilst still in a workable and plastic condition it is
placed upon the table.b,and pressure applied upon the bottom of: the cell by the
plunger c resulting in the formation of a circular and level depression e in the centre
of the inside of the bottom which circular depression is of such a size that it receives
the bottom of the porous pot and holds the same in a perpendicular position so that
the top part of the porous pot does not touch the inside of the mouth of the Leclanche
cell..
In some cases, where an extra depth is required, I form a glass cup d (Fig. 2)
the inside diameter of which corresponds with the outside diameter of the porous
pot, the cup resting in the depression e formed in the bottom of the Leclanche cell
serves to better keep the porous pot in a perpendicular position.
Fig. 3 shows a Leclanche cell in position in the blowing mould after the com-
pletion of the blowing operation; is the mould, the moveable mould bottom, h the
blowing mould cover with its air-supplying pipe is a raised projection formed
on the bottom of the cell by means of the projection k formed on the mould bottom.
"The bottom of the porous pot being formed with an indentation of suitable figure
to fit over and on the raised projection j, will keep the porous pot in a central and
vertical position in the interior of the Leclanche cell.
Having now particularly described and. ascertained the nature of this inven-
tion and in what manner the same is to be performed, 1.claim.:
1. The depression ein the bottom of Leclanche cells as and for the purpose herein
described and illustrated.
2. The glass cup din combination with the depression e as and for the purpose
herein described and illustrated.
3. The projection; in Leclanche cells or jars as and for the purpose herein
described and illustrated.
4. The combination with a Leclanche cell of a cup.d either with the depression e,
the projection or any modification of the same.
Dated this 20th day of November 1891.
DAN NILANDS.