IMPROVEMENTS IN SECONDARY BATTERIES FOR THE STORAGE OF ELECTRICITY."
Year: 1882

page_text: LETTERS PATENT to James Humphrys, of Norwood, in the County of Surrey,
"6
for an Invention of IMPROVEMENTS IN SECONDARY BATTERIES FOR THE
STORAGE OF ELECTRICITY."
PROVISIONAL SPECIFICATION left by the said James Humphrys at the
Office of the Commissioners of Patents on the 20th January 1882.
JAMES HUMPHRYS of Norwood in the County of Surrey
SECONDARY BATTERIES FOR THE STORAGE OF ELECTRICITY."
IMPROVEMENTS IN
My Invention relates to improvements in the construction of secondary batteries
for storing electricity.
It consists in making the plates of which the secondary battery is composed of
an open lattice form, that is to say, I connect the sides of the framework of each
plate with bars, either of a diamond or oval section these bars being arranged at
an angle on the principle of a "Venetian" blind, thereby exposing a maximum
area or surface of spongy lead to the action of the liquid used in the battery.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Humphrys in the Great Seal Patent Office on the 20th July
1882.
JAMES HUMPHRYS of Norwood in the County of Surrey.
SECONDARY BATTERIES FOR THE STORAGE OF ELECTRICITY."
"IMPROVEMENTS IN
My Invention relates to improvements in the construction of secondary batteries
for storing electricity.

page_text: It consists in making the plates of which the secondary battery is composed of
an open lattice form that is to say, I connect the sides of the framework of each
plate with bars either of a diamond or oval section these bars being arranged at an
angle on the principle of a "Venetian" blind thereby exposing a maximum area
or surface of spongy lead to the action of the liquid used in the battery.
And in order that my Invention may be well understood reference is made to
the accompanying sheet of drawings like letters of reference indicating corre-
sponding parts in the respective figures.
Figures 1 and 2 represent a plate of the battery constructed according to one
form of my Invention. In this arrangement the spongy lead or active composition
of the battery is retained in place by means of bars a which are of an oval or
elliptical section and connect the frame b of the plate together. These bars a may
be placed at an angle (on the "Venetian" blind principle) to the frame b of the
plate as shewn so as to expose the maximum surface of spongy lead c, or they may
be placed vertically if desired. In Figure 3 the bars a¹ are shown of a diamond
section in lieu of oval as in Figures 1 and 2. Figures 4 and 5 show the bars a
(as in Figure 2) extending lengthwise between the ends of the frame 6 and one or
more intermediate stiffening bars d. In Figures 6, 7 and 8 the bars a¹ are placed
vertically in the frame b and extend lengthwise between its ends and any number
of intermediate stiffening bars d. Figures 9 and 10 show a modified form of my
Invention in which the frame 6¹ is arranged spirally the bars a' extending as in
figures 6 to 8. In Figures 11 12 and 13, the bars a² are arranged at an angle
with the frame b. and stiffening bar d and extend diagonally in either direction
across the frame b. Two plates so formed may be placed side by side or back to
back in order to afford a better hold for the composition.
According to another plan as seen in Figures 14 and 15, the frame 6' is made
thicker or deeper than the bars a and two or more of these plates may be placed
together to retain the composition. The bars a being arranged either vertically,
horizontally or diagonally in either one or both plates as found most suitable.
Figure 16 is a longitudinal section and Figure 17 a sectional plan of a battery
box constructed according to my Invention. In figures 18 and 19 which show a
modified form of battery box the plates are laid one above the other and the
bars a³ tapered or wedge shaped as shewn.
Having now described and particularly ascertained the nature of my said
Invention and the various modes by which the same is or may be used or carried
into effect I would observe in conclusion that what I consider novel and original
and therefore claim as my Invention, is :-
Making the plates of which the secondary battery for storing electricity is composed
of an open lattice form, arranged substantially as and for the purpose hereinbefore
described and illustrated by figures 1 to 19 on the accompanying Drawing.
In witness whereof I the said James Humphrys have hereunto set my
hand and seal this nineteenth day of July in the year of our Lord One
thousand eight hundred and eighty two.
JAMES HUMPHRYS. (L.S.)