Multi-purpose ignition test unit

Claim 1

A BATTERY GENERATOR IGNITION TEST DEVICE COMPRISING: A CASE, A METER WORKS SECURED IN SAID CASE AND HAVING A DIAL FACE BEARING AT LEAST THREE DISTINCT SCALES THERON, GANGED SWITCHES IN SAID CASE SPACED FROM SAID METER, A SINGLE KNOB OPERATING SAID GANGED SWITCHES, A PLURALITY OF ELECTRICAL UNITS INTERCONNECTED WITH AND BY SAID GANGED SWITCHES IN VARIOUS RELATIONSHIPS WITH SAID METER WORKS, A PAIR OF CLIP LEADS INTERCONNECTED WITH SAID GANGED SWITCHES AND SAID ELECTRICAL UNITS, SAID CLIP LEADS BEING DISTINCTIVELY MARKED, A TEST PROBE CONNECTED TO SAID METER WORKS AND ONE OF SAID CLIPS VIA SAID GANGED SWITCHES AND COMBINATIONS OF SAID ELECTRICAL UNITS, SAID GANGED SWITCHES HAVING A PLURALITY OF POSITIONS TO WHICH THEY CAN BE TURNED BY THE KNOB AND AT LEAST THREE OF WHICH CAUSE SAID CLIPS TO BE INTERCONNECTED BY DIFFERENT RESISTANCES IN DISTINCT STEPS, SAID CASE HAVING INSTRUCTIONS THEREON ADJACENT TO SAID KNOB IN WHICH INSTRUCTIONS SAID THREE POSITIONS ARE LABELLED TO INDICATE THREE DIFFERENT GRADES OF EFFICIENCY, AND AT LEAST ONE OTHER POSITION OF SAID KNOB INTERCONNECTING SAID CLIPS WITH A FIXED RESISTANCE AND CONNECTING SAID METER WORKS ACROSS SAID FIXED RESISTANCE, SAID ONE OTHER KNOB POSITION BEING LABELLED ON SAID CASE TO INDICATE A PARTICULAR ONE OF SAID SCALES AS SIGNIFICANT WHEN SAID KNOB IS IN SAID ONE OTHER POSITION, AND AT LEAST TWO ADDITIONAL POSITIONS OF SAID KNOB ARRANGING SAID GANGED SWITCHES TO INTERCONNECT ONE OF SAID CLIPS AND SAID TEST PROBE VIA ONE OF TWO PREDETERMINED RESISTANCES SELECTIVELY ACROSS WHICH SAID METER WORKS IS CONNECTED, SAID TWO ADDITIONAL POSITIONS OF SAID KNOB BEING LABELLED ON THE FACE OF SAID CASE INDICATING TWO DIFFERENT TESTS OF HIGH VOLTAGE AND DESIGNATING THE THIRD OF SAID METER SCALES ONLY AS SIGNIFICANT WHEN SAID KNOB IS IN EITHER OF SAID TWO ADDITIONAL POSITIONS.