d by

(a) Blown battery fuse.
(b) Battery over-discharged.
(c) Loose or broken connection on battery or switchboard.

OTHER EXIDE FARM LIGHTING BATTERIES

The Exide type is shown in Figure 296. The plates are held in position
both by the cover and by soft rubber support pieces in the bottom of
the jar. The support pieces are provided with holes in which
projections on the bottom of the plates are inserted. The cover is of
heavy moulded glass. The separators are of grooved wood in combination
with a slotted rubber sheet (Fig. 297). The strap posts are threaded
and are clamped to the cover by means of alloy nuts. The cover
overlaps the top of the jar to which it is sealed with sealing
compound. The method of sealing and unsealing is practically the same
as in the Exide Delco-Light Type.

Batteries with Open Glass Jars

Batteries with open glass jars, in addition to the conducting lug,
have two hanging lugs for each plate. The plates are hung from the jar
walls by these hanging lugs, as shown in Figs. 323 and 324. The plate
straps, instead of being horizontal are vertical and provided with a
tail so that adjacent cells may be bolted together by bolt connectors
through the end of the tail.

1. The Exide Cell is shown in Fig. 324. It has a grooved wood
separator between each positive and negative plate. The separators are
kept from floating up by a glass "hold-down" laid across the top. The
separators are provided at the top with a pin which rests on the
adjoining plates. The pins together with the plate glass hold-downs
keep the separators in Position.

To remove an element it is simply necessary to unbolt the connectors,
remove the glass cover and hold-down and lift wit the element.

2. The Chloride Accumulator cell is shown in Fig. 323. It differs from
the Exide only in type of plates and separators. The positive plates
are known as Manchester positives and have the active material in the
form of corrugated buttons which are held in a thick grid, as shown in
Fig. 325. The buttons are brown in color, the same as all positive
active material.

The separators, instead of being grooved wood, am each a sheet of wood
with six dowels pinned to it.

The element is removed the same as in the Exide type.

[Fig. 323 Exide chloride accumulator cell with open glass jar,
and Fig. 324 Exide cell with open glass jar]

Batteries with Sealed Rubber Jars

1. The Exide cell is shown in Fig. 326. It is assem