The Richmond palladium and sun-telegram., 1919-09-20

which is, perhaps, the ideal ignition
system. In studying it, let us put
ourselves in place of the inventor and
develop the system as he would be
likely to.
We want to do away with the
transformer coil What is its pur-
pose? It's purpose is to transform
the low-voltage current into a high
voltage current. Well, can the mag
De:o ha so built that it will generate
q clilrehL Of voltage high enough to
give tha spark. without Using trans
former cot? No. because it can not
he made ;arge enough. Well, then,
can the COL be butt into the magnet?
Let Us SEE what the col, is made
of. It IS made OF a soft iron core,
around Ehicn ara wound a number
of turns of wire, carrying the low
tension curreat, and also 4 g eat NUM-
Der Of turns of wire, into which the
EiSh-v ultage current Is indeed oE the
interIr ption of the low-tensioL, or pri-
macy CITt
But nctire his. The magnetic arma-
turc is also soft iron core. and has
wrapped about j. nulnh". Of turns
Ct ,y!9e, the construction and wiring
Of tht two cores being as shown in
= y. !. 30 why IlO1 USE lIIc dl lIdlNI z
core and make it take the place of
TIE nsfolmer-col core, also? The
core already has a primary winding
on it, so that only the secondary wind
ing will be- necessary.
Must Be Interrupted.
This can be done. AS, because the
current generated Oh the armature
must be interrupted when it is a max
i1uum, which will be when the core
is in a vertical position, and at right
angles to the magnetic lines OF force.
Il he magnetism from the field OF the
magnets will not interfere with the
characterization of the core; and also,
as the secondary current floWS I'M
1nediately after the primary current
is interrupted, or when the lnterrupter
POINTS are open, the primary circuit
Will be open and SO the Two circuits
vii lnOt interfere with one another.
NoN the secondary coil is revolving
and so in order to collect this current
= collector ring and collector brush
must be furnished. This is generally
placed on the side OF the armature
shaft, opposite to the side OF the in
terrupter is on. Figure shows the
wiring as we have developed it so far.
Tracing the two circuits, we find
that one enQ Oh the pluudlS 10
grounded. so the current which is gen
Grated on this winding will go to the
primary collector, then to the inter
rupter and then to the ground, and so
returning to the coil through the metal
Of the magnetic itself. The secondary,
which is also grounded at one end,
will go to the collector ring, be col
lected by the brush and then go TO
the distributor, by which it is dis
tributed to the various wires running
to the spark plugs, and will then re-
turn through the metal Of the engine
and magnetic to where the secondary
coil has grounded. The thin lines rep
resent the primary and heavy the sec
ondary
Notice that the only wires which
leave the instrument (as the inter
rupter and distributor are built into it.
the wires X and l. will not be outside
are those which go to the spark plug.
This is truly a simple machine.
Will 1t Run?
How will we stop the engine, which
will run just as long as it gets a spark
and mixture? 1t would complicate the
engine and control to arrange it SO
that the mixture is stopped, so that
the automobile gas engine is always
stopped by stopping the spark. Now.
Just so long as the engine is running
the magnetic will generate the current
Obviously we cannot disconnect the