t tightly over the neck of the acid bottle.
Slip this rubber over the neck of the bottle and allow the long end to
hang a few inches over the side of the carboy bottle or box. This is
for pouring acid from a carboy when it is too full to allow the
contents to be removed without spilling. This device will allow the
contents of the carboy to be poured into a crock or other receptacle
placed on the floor without spilling, and also prevents dirt that may
be laying on top of the carboy from falling into the crock.

[Fig. 133 Siphon for drawing acid from carboy]

Figure 133 shows a siphon method for drawing acid from a bottle,
although this method is more suitable for distilled water than for
acid. "A" is the bottle, "B" a rubber stopper, "C" and "D" are 3/8
inch glass or hard rubber tubes, "E" is a length of rubber tubing
having a pinch clamp at its lower end. To use this device, the stopper
and tubes are inserted in the bottle, and air blown or pumped in at
"C," while the pinch clamp is open, until acid or water begins to run
out of the lower end of tubing "E." The pinch clamp is then released.
Whenever acid or water is to be drawn from the bottle the pinch clamp
is squeezed so as to release the pressure on the tube. The water or
acid will flow down the tube automatically as long as the pinch clamp
is held open. The clamp may be made of flat or round spring brass or
bronze. This is bent round at (a). At (c) an opening is made, through
which the part (b) is bent. The clamp is operated by pressing at (d)
and (e). The rubber tubing is passed through the opening between (b)
and (c).

This method is a very good one for the small bottle of distilled water
placed on the charging bench to bring the electrolyte up to the proper
height. The lower end of tube (e) is held over the vent hole of the
cell. The pinch clamp is then squeezed and water will flow. Releasing
the clamp stops the flow of water instantly. If tube (e) is made long
enough, the water bottle may be set on the elevated shelf extending
down the center of the charging bench.

[Fig. 134 Foot pump for drawing acid from carboy]

Figure 134 shows another arrangement, using a tire pump. D and E are
3/8 inch hard rubber tubes. D is open at both ends and has a "T"
branch to which the pump tubing is attached. To operate, a finger is
held over the upper end of D, and air is pumped into the acid bottle,
forcing the acid into the vessel F. To stop the flow of acid, the
fi