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Патент USA US2412540

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Dec. 10, 1946.
A_ v_ SELLARO
,
EMERGENCY IGNITION UNIT
Filed Nov. 18, 1944
BY
2,412,540
Patented Dec. 10, 1946
2,412,540
? UNITED STATES PATENT ?OFFICE
2,412,540
" EMERGENCY IGNITION UNIT
?-
Angelo V. Sellaro, Hatboro, Pa.
Application November 18, 1944, Serial No. 564,105
1 Claim. (Cl. 123-148)
1
' 2
The invention herein disclosed relates? to igni
? tion systems of the battery distributor type and
is in the nature of an improvement on that dis- , >
closed in Patent No. 2,152,650 of April 4, 1939. -
The patent referred to involved the provision
of a vibrator connected so that it could be cut
into the low tension or breaker side of the igni
tion system. The distributor would then serve,
as before, to carry the high tension current to
above-identified patent in embodying a battery 7,
key operated switch 8, primary winding 9 con
nected by wiring III with the breaker ll operated
by cam l2 on the same engine driven shaft carry
ing the distributor arm l3, the latter connected
by wire H with the secondary, high tension
winding l5 of the spark coil and cooperating
with terminals I8 connected with the several
spark plugs l1. Also, there is shown a condenser
the spark plugs. For such operation, however, the 10 l 8 across the breaker points.
regular distributor brush was usually replaced
The emergency unit of the present invention,
by a brush narrowed at the end to reduce th
possibility of pro-ignition.
'
as in the prior patent, embodies a buzzer or elec
tromagnetic circuit interrupter or vibrator I9
which can be cut into the primary circuit of the
Important objects of the present invention are
to utilize'all the advantages of the earlier inven 15 system and?which will operate through the spark
tion but to avoid any need for substitution or
coil of the system to produce a ?ow of high tension
use of special distributor arms.
current, delivery in proper sequence to the spark
Other objects are to enable the connection of
plugs by the rotating distributor arm. '
the emergency unit in place by simply discon
In the present invention, however, this vibrator,
necting the one wire leading from the primary of 20 instead of being merely a substitute to be used
the spark coil to the insulated terminal of the
in place of the breaker unit, can be used either
breaker and to furnish the unit in such a form
as such a substitute or tosupplement and elec
? that anyone, without any previous knowledge or
trically cooperate with'the breaker. It is this last
mentioned phase of the invention which en
and accurately connect the unit in an ignition 25 ables the emergency unit to be used in the system
system and without fear of injury to any of
with the regular or standard form of distributor
the parts in the system.
'
brush and without?causing detonation and pre
experience in the matter, may quickly, easily
Additional objects are to provide an ignition
unit which primarily for emergency and di?icult
ignition when so used.
In the present illustration the unit is equipped
starting uses may, if desired, be kept more or less 30 with two ?exible leads 20, 2t, adapted to be con
continuously in service as a desirable addition
nected respectively with the primary terminal
for increasing power, reducing fuel consumption
22 of the spark coil and with the insulated
and other advantages.
terminal 23 of the breaker, after the normal con
Other desirable objects and the novel'i?eatures
nection indicated by the broken line it has been
by which the purposes of the invention are at 35 removed.
tained are set forth or will appear in the course
To provide the desired selective or combined
of the following speci?cation.
use of the conventional and emergency ignition
The drawing accompanying and i?orrning part
systems, separate control switches
and 25 are
of the speci?cation illustrates a present commer
cial embodiment of the invention but structure 40
may be modi?ed and changed as regards the im~
mediate disclosure, all within the true intent and
broad scope of the invention as hereinafter de-"
fined and claimed.
Fig. 1 in the drawing is a diagrammatic view 45
illustrating the invention as applied to and used
in conjunction with an ordinary battery ignition
system;
i
connected as indicated in Figs. 1 and 3. The
lead it from the spark coil is connected with
one terminal 26 of the conventional ignition
switch 25 and the lead 28 to the breaker is con
nected with the other terminal 2? of this same
switch. A short wire 28 connects the spark coil
terminal 26 of switch 25 with terminal 2a of the
emergency control switch 243.? The other terminal
30 oi? this switch is connected by wire it with
winding 32 of the vibrator. The other end oi?
this winding is connected by Wire 33 to the insu
Fig. 2 is a plan view of the complete unit;
Fig. 3 is a reverse plan view showing the parts 50 lated support 33 carrying the fixed contact 355.
inside the can or container;
A wireBB extends from this contact support to
Figs. 4 and 5 are broken cross sectional views
one side of a condenser 37. The other side of this
as on substantially the planes of lines 4?@ of
condenser is? grounded by wire ?38 shown as
Fig. 3 and 5-5 of Fig. 2.
'
soldered to the ?can? 39 forming the container
The wiring diagram is similar to that in the
support for the several parts oi? the unit.
aeiaeeo
the conventional key operated switch. In the
latter instance the switch mechanism of this in
vention would be used as well for turning the
The frame or the vibrator is shown as made up
of a generally L-shaped bracket (3E) secured by a
screw ill to the top of the can, thus providing
the necessary ground connection for the vibrat
ing 'armature � mounted on said frame and
carrying the vibrating contact 63.
ignition on and o?? and could be used for conven
tional operation by putting it in the conventional
position, or for emergency operation by putting
it in the emergency position, or for emergency
The metallic container may be mounted on the
back of the dash or other conveniently acces
sible position, where it will be grounded on the
frame oi.? the vehicle or other mechanism.
When the conventional ignition switch 2-5 is
closed, the regular ignition circuit will be closed
through the breaker, as is clear from Fig. 1. If
this switch is left open and emergency switch 95
closed, circuit will be through the lead 2t) from
the spark coil and the cross connection 28 to
switch 25 and through that switch and connec
tion 3! to the vibrator coil and. vibrator con
and spark retarded operation by putting it in
10
the position with both circuits, that is, the regu
lar breaker circuit and the vibrator circuit closed.
Instead of being added unto the conventional
system as an emergency attachment, the vi
brator may be included as part of the original
equipment, mounted and connected ready to be
used whenever required. Also, the invention
may be?made up as a handy complete unit
adapted to be carried about for servicing engines
that may have failed to start. The use of this
emergency unit, whether temporarily? or con
tacts 35, �, to ground and through connection
as to the condenser 23? and ground. This will 20v tinuously, does not iniuriously a?'ect the engine
and, due to avoiding pro-ignition, mayactually
provide a how of sparks at the high tension side
be of benefit� to the engine and associated
of the system to be distributed by the brush 83.
mechanism.
?
Alternate use of these two switches enables 1mi
?What is claimed is:
.
tion to be tested at will through either the regu
An emergency unit for maintaining a con
lar system or through the emergency unit. Pref
ventional battery distributor ignition system in_
erably and usually, however, when there is any
operation under conditions where it might not
possibility of need for thefemergency system, both
ordinarily operate because of weak battery or
these switches will be 'closed. This then puts
faults in the breaker mechanism or the like and
the vibrator and its condenser in a parallel cir
comprising a magnetic circuit interrupter and
cuit with the breaker and its condenser. When
means for connecting the same with the primary
the breaker is closed it short circuits the vibra
' winding of the conventional spark coil of the
tor but when the breaker opens the vibrator
system in parallel with the conventional coil and
starts to vibrate, producing a delayed or re
breaker circuit of that system and whereby said
tarded spark at the distributor. Both conden
sers, the conventional one it at the breaker and 35 magnetic interrupteroperating through the bat
1 the extra one 3i at the vibrator, then discharge
providing a hotter, higher voltage retarded spark.
tery, coil and breaker connections of the conven
tional system will provide a continuous succession
'of interruptions in the primary circuit in paral
lel with the breaker circuit and thereby enablev
As the breaker closes the spark will? be continued
or extended through the inertia e??eot of the vi
brator. This is highlydesirable for cold start 40 the distributor ?of the system to function in the
ing or ?ooded carburetors because besides being _
conventional manner, said connecting means in
cluding two independently operable switches
late the spark has a longer time cycle in which
to eii?ect complete ignition.
separate and apart from the conventional igni
By eliminating detonation the invention en
tion switch of the system and arranged, one
ables longer operation in high gear, better hill
_ switch to cut the breaker mechanism into and
pulling power, conservation of fuel and other
out of service and the other switch to cut the
vadvantages. The invention also enables start
magnetic circuit interrupter into and out of
ing under weak battery'or generator conditions
service and whereby either or both said breaker
or with weak spark plugs or with faults in the
mechanism and said magnetic circuit interrupter
coil, condenser, breaker arm, governor or other 50 may be in service at one and the same time and
portions of the system.
said magnetic circuit interrupter be? used either
Instead of two separate switches such as shown,
above or in parallel with the conventional coil
a single 3-way switch may be employed and this ? and breaker circuit.
may be used in conjunction with or in place of
i ANGELO V. SELLARO.
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