Improvements in Electrical Accumulators.
Year: 1888

page_text: Date of Application, 20th Dec., 1888
Complete Specification Left, 20th Sept., 1889-Accepted, 26th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in Electrical Accumulators.
We, JOHN CRISP FULLER and GEORGE FULLER, both of Newcastle Wharf Works,
Old Ford Road, Bow, in the County of Middlesex, Electricians and Telegraph,
Engineers, do hereby declare the nature of this invention to be as follows:-
In existing forms of secondary batteries great difficulty is experienced in their
working, from the facility with which the plates come into contact by buckling, and
consequently short circuiting each other..
To remedy this defect we interpose between the plates, partitions of porous material
which, while preventing the plates coming into contact by buckling, will at the same
time allow the action of the battery to be carried on.
For this purpose we use porous material which is indestructible by acids, and
ordinary electrical action, but we prefer to use porous earthenware plates or porous
earthenware pots. In setting up the battery we put the porous partitions between
each plate of the battery, or we insert each alternate plate in a porous pot. By these
means we separate the plates from each other and prevent them ever coming into
contact, either by buckling or by disintegration, in addition to which we prevent the
undue rapid discharge by the interposition of this internal resistance while at the same
time we make it suitable for the special requirements either of electric lighting or for
telegraphic purposes.
Dated this 20th day of December 1888
COMPLETE SPECIFICATION.
Improvements in Elecrtical Accumulators.
We, JOHN CRISP FULLER, and GEORGE FULLER, both of Newcastle Wharf Works,
Old Ford Road, Bow, in the County of Middlesex Electricians and Telegraph
Engineers 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 :-
In existing forms of secondary batteries great difficulty is experienced in their
working from the facility with which the plates come into contact by buckling and
consequently short circuiting each other. To remedy this defect we interpose
between the plates partitions of porous material which while preventing the plates
coming into contact by buckling will at the same time allow the action of the battery
to be carried on.
For this purpose we use porous material which is indestructible by acids and
ordinary electrical action but we prefer to use porous earthenware plates or porous
earthenware pots. In setting up the battery we put the porous partitions between
each plate of the battery, or we insert each alternate plate in a porous pot. By these
means we separate the plates from each other and prevent them ever coming into
contact either by buckling or by disintegration in addition to which we prevent the
undue rapid discharge by the interposition of this internal resistance while at the same
time we make it suitable for the special requirements either of electric lighting or for
telegraphic purposes. We do not limit ourselves to the height of the porous pots or
partitions.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is ;
"
In electrical accumulators the employment of porous partitions between each plate
of the battery or arranging each alternate plate in a porous pot whereby the plates
are separated from each other substantially as and for the purposes hereinbefore
described.
1000
ԱԱԱԿԱ
JOHN CRISP FULLER.
GEORGE FULLER.
By Brewer & Son,
33, Chancery Lane, London.