Improvements in Electric Batteries.
Year: 1898

page_text: KUVISIONAL SPECIFICATION.
Improvements in Electric Batteries.
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18,
Buckingham Street, Strand, W.C., Civil Engineer, do hereby declare the nature
of this invention, a communication to me from abroad by Columbus
Electrizitätsgesellschaft m, b, H, of Ludwigshafen, in the Empire of Germany,
to be as follows:-
The present invention relates to a dry primary element battery having a thin
or thick fluid electrolyte rendered able to be transported and having the advantage
that its sealing allows the gases to escape but not the electrolyte.
This purpose is obtained by sealing or closing the element with a blanket
saturated with oil, but so closed that between the electrolyte and the blanket an
air space remains.
The oiled blanket has the effect of setting gases free at any time but at
ordinary pressure water or liquids are detained by it.
When inside a thus closed element gases appear they can escape through the
cover without producing an over pressure endangering the element.
There need be no fear of the element used falling out of the liquid because the
hollow space above the liquid remains in contact with a part of the blanket allow-
ing the gases to escape without allowing them to drive the liquid by over
pressure through the blanket.
At some distance above the blanket in order to protect the latter, a cobblers
wax sealing or closing is arranged supported by a disk of cork or the like.
Through this cobblers wax closing a small pipe is passed allowing the gases passed
through the blanket to escape.
The blanket is best supported by the bent top border of the zinc electrode and
held away from the cobblers wax closing by a ring of suitable material; or other
convenient modes for supporting the blanket and wax closing device may be used.
Dated this 17th day of November 1898.
Improvements in Electric Batteries.
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18,
Buckingham Street, Strand, W.C., Civil Engineer, do hereby declare the nature
of this invention, a communication to me from abroad by the Columbus
Electrizitätsgesellschaft m, b, H, of Ludwigshafen, in the Empire of Germany,
Prive 811

page_text: and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement;―
The present invention relates to a dry primary element or electric battery
having a thin or thick fluid electrolyte, suitable for transport and having the
-advantage-that-its-sealing allows the gases to escape but not the electrolyte.
This purpose is obtained by sealing or closing the element with a blanket
or felt cover saturated with oil, but so closed that between the electrolyte and the
blanket an air space remains.
The oiled blanket has the effect of allowing gases to freely pass at any time but
at ordinary pressure water or liquid is detained by it.
When inside a thus closed element gases appear they can escape through the
cover without producing an over pressure endangering the element.
There need be no fear of the liquid passing out of the element should the
latter fall or remain resting upon its side because the hollow space above the
liquid remains in contact with a part of the blanket allowing the gases to escape
without allowing them to drive the liquid by over pressure through the blanket.
At some distance above the blanket in order to protect the latter, a cobbler's
wax sealing or closing is supported by a disk of cork or the like. Through this
cobbler's. wax closing a small pipe is passed allowing the gases passed through
the blanket to escape.
The blanket is best supported by the bent top border of the zinc electrode and
held away from the cobbler's wax closing by a ring of suitable material; or other
convenient modes for supporting the blanket and wax closing device may be used.
This primary element or electric battery is illustrated in the annexed drawing
showing a section thereof-a is the carbon electrode, b the zinc electrode, c man-
ganese enclosed in a sack, d is the electrolyte, e the outer vessel, f the binding
post for the carbon electrode, g the binding wire for the zinc electrode, na support-
ing disk, the oil soaked stopper, k a supporting disk 7 the wax seal, m the vent
tube therein.
Having now particularly described and ascertained the nature of this
invention, and in what manner the same is to be performed. I declare that what
I claim is:-
1
A "dry" element (a portable primary element charged with fluid or semi fluid
electrolyte) the closure of which consists of an oil soaked blanket or felt cover or
plug or like porous material having a space between it and the electrolyte, said
device retaining the liquid but allowing the gases to pass at ordinary pressure.
TYL J +1 01. 1....
1900
H. J. HADDAN.