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.