Year: 1885

page_text: We HENRY GEORGE ELLERY, of 8 West Leigh Road and JOHN THOMAS GENT,
of Harborough Road, both of Leicester in the county of Leicester, Electricians do
hereby declare the nature of this invention to be as follows:-
Our invention relates to an improved insulated battery jar and is applicable to
any form of battery jar.
For this purpose we surround the upper rim of the jar with a hollow receptacle
for holding a suitable insulating substance which is not liable to be affected by the
condensation of moisture or the action of chemicals, creeping salts, etc. For
instance it is well known that it is very difficult to keep the ordinary Leclanché
cells insulated from their neighbouring cells in consequence of the sults creeping
over the outside thereof; to prevent this it is usual to coat the upper surface of the
cells with wax, grease or the like but no coating which depends upon surface
adherence is permanently effective.
We have found that by surrounding the top of the cells with a sufficient surface
of a suitable insulator to withstand all chemical or atmospheric action and which
does not depend upon its power of adhesion to the surface but is held in place by
a suitable receptacle we can completely and absolutely insulate each jar from its
neighbours.
In the manufacture of our improved cell which may be made of glass, ebonite,
or earthenware we provide the rim with a hollow chamber in which we insert any
suitable insulating material either liquid or solid. We further insulate the cell by
providing the bottom with lugs or feet so as to keep the bottom surface of the cell
dry and free from contact with the support on which it is placed.

page_text: We HENRY GEORGE ELLERY, of 8 West Leigh Road, and JOHN THOMAS GENT,
of Narborough Road, both of Leicester, in the county of Leicester, Electricians 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:-
Our invention relates to an improved insulated battery jar and is applicable to
any form of battery jar.
For this purpose we provide or surround the upper rim of the jar with a hollow
receptacle for holding a suitable insulating substance which is not liable to be
affected by the condensation of moisture or the action of chemicals, creeping
salts &°. For example it is well known that it is very difficult to keep the
ordinary Leclanché cells insulated from their neighbouring cells in consequence of
the salts creeping over the outside thereof; to prevent this it is usual to coat the
upper surface of the cells with wax, grease or the like but no coating which
depends upon surface adherence is permanently effective.
We have found that by surrounding the top of the cells with a sufficient surface
of a suitable insulator to withstand all chemical or atmospheric action and which
does not depend upon its power of adhesion to the surface but is held in place by
a suitable receptacle, we can completely and absolutely insulate each jar from its
neighbours.
In order to enable our invention to be fully understood we will describe the
same by reference to the accompanying drawing which represents a section of a
battery jar manufactured according to our invention.
In the manufacture of our improved cell which may be made of glass, ebonite,
or earthenware we provide the rim of the jar a, with a hollow chamber such as b, in
which we insert any suitable insulating material c, either liquid or solid.―In practice
we bave found that a grease gives good results as an insulating material. In some
cases we further insulate the cell by providing the bottom with lugs or feet so as
to keep the bottom surface of the cell dry and free from contact with the support
on which it is placed; such lugs or feet are not shewn in the drawing.
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 what
we claim is :
1. Providing the rims of battery jars with a hollow chamber such as that
herein before described and illustrated in the drawing for the purpose hereinbefore
described.
2. The manufacture and use of the improved insulated battery jars hereinbefore
described and illustrated in the accompanying drawing.