The Brookings register. [volume] (Brookings, Brookings County, S.D.) 1903-1971, 1915-11-18

could be tested and charged and tools
for doing same. have a 110 volt d.
rect current line. How many bulbs
would have to be burned in connection
with il?
About ten lamp sockets are fastened
to a board and then connected in paral-
lei. Carbon lamps of 40 volts are
placed in the sockets. In series with
the line Is placed an ammeter, and
across the line a volmeter is connect
ed. A suitable switch Is placed any
where in the circuit. The number Of
lamps to be operated depends upon the
charging rate Of the battery. Let us
suppose that the initial charging rate
is six amperes. Either six 1OOwatt
lamps will approximate this figure or
about five 10O-watt lamps and three
5O-watt lamps. The ammeter will read
the number of amperes being drawn
by the lamp bank, and, if the charging
rate Is i~nitially SIX amperes and the
meter reads seven, then too many
lamps are in the circuit, and one at a
time should be unscrewed until the
meter reads six amperes.
Another method of charging at home
is by the use Of a water rheostat. This
rheostat consists Of a small barrel con-
tanning two lead plates and acidified
or salt water. Each plate should be
about II foot square and one-fourth
inch thick. Such an arrangement may
be used in a 10 volt circuit and the
charging rate varied by the man in
ch9rpn nv hrippinu tho nlotac nlncor
together or separating them. In the
latter case the resistance is made
greater and in the former less. In at
taching the battery to the circuit care
should be taken to see that the posi-
tive Of the line is connected to the posi-
tive Of the battery. In charging by
the gravity method you should consider
that the specific gravity Of the electro
lyte varies as the temperature. and, If
the gravity at GO degrees +. is to be one
and ~twenty-eight hundredths, If the
temperature is 20 degrees a correction
must be made. For every degree rise
in temperature deduct .OO1 from the
gravity Of the liquid.
'obid Tic Sb1S mo VdiVo openings
or the fitting of a new cam shaft be
desirable, in addition to tightening tho
reciprocatins parts of my motor, in an
effort to secure more power and better
acceleration, as we'll as greater availa-
BILE maximum speed?
The fitting of larger valves will un-
doubtedly help to increase the power
Of your motor, and if you fit a new cam
shaft the cams should be designed to
hold the valves open q little longer
than usual. 1t would be best to try
the old cam shaft, and, if the results
are not as expected, then a new shaft
could be fitted. Lighter reciprocating
parts will increase the power, but do
not use lighter connecting rods unless
you know that the new rods will be
strong enough to stand the stresses i'm
posed.
Is the spark Of a high tension mag
neto hotter and considered more reli-
able than the spark of a storage bat
terry or generator ignition, or should a
car be equipped with both when cleo
tricalIy equipped?
Whether a battery spark is hotter
than a magnetic spark depends entire
ly upon the systems you wish to COM
pare. A battery system Of one make
may give a hotter spark under certain
conditions than a magnetic Of given
make operating under certain cOndi-
tons. The single ignition system, US
ing either a magnetic alone or a bat
terry in connection with a starting and
lighting system, is fast coming into
vogue. Quite a number Of makers
have already discarded magnetos and
are using battery ignition, while 9TH
ers have substituted a high tension
magnetic for the battery system. A
good magnetic or q good battery sys-
tenn should make the use Of a dual
system unnecessary, but for safety's
sake many use the latter.
Is there an instrument which regis
ters the voltage through q high tension
coil?
There are instruments made for re-
cording high voltages such as pass
through the high tension winding of a
coil, but the meters would not be prac-
tical for use In motor car service. Such
instruments are expensive and are
made rather large. You will find high
voltage reading meters in testing lab
OratOries.
My disk clutch slips or lets 90 On.
tirsly whenever il 10 called upon to IN.
dsrtaks . pull after IL gets warmed
up. Can you suggest any possible rem
sdy7
In cases where a disk clutch has been
found to slip in the manner which you
describe washing the clutch In kero-
sene has often been found to remedy
this condition, though it is sometimes
necessary to run 1t for miles with moth
Ing but kerosene as a lubricant. Aft
er 1t Is washed well put one-half kero-
sene and a light lubricating oil, max
ing about one and one-half pints in all,
In the clutch box. The use Of a fiber
grease, not too much at a time, but
Often, In the gear set will rive much