Improvements in Electric Accumulators, and in the Manner of their Use.
Year: 1896

page_text: Date of Application (in the United Kingdom), 17th Nov., 1895
.Complete Specification Left, 17th Nov., 1895-Accepted, 27th Feb., 1597
COMPLETE SPECIFICATION.
Improvements in Electric Accumulators, and in the Manner of
their Use.
We, CLOVIS PIERRE FRANCIS CLERC of 28 Rue Grange Batelière, Paris,
France, and ADOLPHE GEORGES PINGAULT of 98 Rue du Chemin Vert Paris,
France, 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:-
The improvements forming the object of the present invention, in electric
accumulators and in the mode of their use have for their object to render these
apparatus more specially applicable to the electric propulsion of cycles, particularly
to the propulsion of machines serving for carrying messengers (entrainement des
coureurs).
In the accompanying drawing
Fig. 1 is a transverse sectional elevation of one element of the improved
accinnulator of our system.
Fig. 2 is a longitudinal elevation of a positive plate in its insulating sheath.
Fig. 3 represents in longitudinal elevation the manner of fixing on a horizontal
tube of a cycle frame a case containing four elements and the manner in which the
closing of this case is effected.
Fig. 4 is a plan of the preceding fig.
As usual the elements consist of any number of positive plates and of the same
number plus one of negative plates.
The element represented as an example in Fig. 1 has two positive plates a and
three negative plates b; each of the positive plates is contained in a sheet d folded
in two and serving to insulate them from the negative plates.
The sheets d d are of rubber or celluloid or other material a non-conductor of
electricity and not acted upon or attacked by the acidulated liquid, moreover the
sheets are perforated with holes of circular or other shape of smaller dimensions
than those of the pellets constituting the active mass so that if one of thein becomes
detached, it cannot pass through one of the holes of the insulating sheath and
come in contact with the neighbouring negative plate; in the same manner particles
which separate themselves from the active mass are collected at the bottom of the
sheath and do not present any danger of short circuiting.
In order the better to insure the insulation of the positive plate from the
adjacent negative ones, we fix by any suitable means on the sheath dd distance
pieces e eggghhh which keep the insulating sheaths d d and the negative
plates bb at a distance apart equal to the thickness of said distance pieces.
قيم

page_text: The box of rubber, celluloid or other suitable material contains the constituent
parts of the element; these parts come flush with the upper part of the box in
order that, when the cover is in place, no movement of the parts can be caused by
the shaking of the cycle. In order to enable, in this arrangement, the plates of
the same pole to be connected in the interior of the box, the plates are cut out
at their upper part; the one shown in Fig. 2 in its insulating sheath is cut out
at the corner but could be cut out at some other point.
For the arrangement of our accumulators on cycles we unite the elements in one
casing of steel which is fixed to a horizontal tube in the lower part of the cycle
frame. Figs. 3 and 4 show a casing m coutaining four elements; the cover is of
sheet steel and is held on the casing by four screwed rods passed through the
corners of the casing in the manner of the spokes on the hubs of cycle wheels,
and the hole into which each screwed rod is fixed is afterwards filled with
solder.
Lest the liquid from the boxes i should spread into the casing m the boxes i are
made as exactly as possible of the same height and in such manner that their upper
part is flush with that of the casing in which they are contained, a sheet of rubber
of 3 to 4 thickness and of the dimensions equal to the iuuer ones of the casing m
resting on the upper part of the boxes i. The tightening of the nut p, of the
screwed rods n causes the cover and the rubber to be pressed against the edges of
the boxes, the closing being thus hermetic. Should the cover I not be sufficiently
strong a horder of angle-iron would give it the necessary rigidity.
The fixing of the casing m on to the tube g is effected by means of two flat
metal bars or clips r and connected by bolts, the plate passes under the casing
and is secured to the tube y and the plate or bar rests ou the cover 1. The
bolts pass each in a guide-bracket u wbich prevents any sliding of the.
accumulator.
Two holes are made in the cover and a rubber plate is provided for the passage
of terminals from which the current is taken.
The charging of the accumulators is effected by using negative plates of lead;
the liquid of each eloment is then withdrawn and the negative electrodes of lead
are replaced by zinc plates. To discharge the battery it is sufficient to again fill
the boxes with acidulated liquid. The advantage of substituting zinc plates for
lead is to obtain a much higher electromotive force than by using the latter, at the
Banie time decreasing weight.
Having now particularly described and ascertained the nature of the said inven-
tion and in what mauuer the same is to be performed, we declare that what we
claim is
1. The folded insulating sheath substantially as described containing the positive
plates so as to prevent pastilles or particles of the active mass which may become
detached from the positive electrodes from coming in contact with the negative
plates.
2. Cutting out the battery plates (which are of the same height as the interior
of the boxes) whereby they can be connected in the interior of the containing
boxes, substantially, as described.
3. The method substantially as described of closing the cases containing the
boxes so as to prevent the escape of the liquid.
4. The arrangement by which the cases are fixed on the horizontal tube of a
cycle frame in one or more places substantially as described.
5. The manner of using the accumulator, cousisting in charging it by means of
negative electrodes of lead and substituting zinc plates for the discharge.
Dated this 17th day of November 1898
BOULT & WADE..