The condenser of the ignition coil is made of two layers of tin foil and several layers of insulation, such as paraffin paper. This operation requires a person who is very careful, since if this particular part is not carefully constructed it will not function properly. The condenser is also machine wound in a number of cases, and skill comes with practice in this work.
Requirements for this job are about the same as found in the coil winding, viz., that the operator must have the free use of both hands, and be able to watch his work carefully.
After these various parts have been made in their respective departments they are ready for the industrial tests. This is done with meters to determine the amount of resistance that each coil has. If the resistance is not the same as found in other coils, the insulation is broken or the coil is shorted, in which case the coil is rejected. The condenser test is somewhat different. Here we find that special meters are used for determining the capacity. These testing operations require a man who has been trained for this particular job. The work is usually done sitting down.
After these various parts have passed inspection they are sent to the coil assembly, where they are put together in their proper relation. Where the coil is a box coil, the windings and condenser are placed in a box and hot paraffin or an insulating compound is poured into the box. After it has cooled all the ignition parts are held securely in place. The coil is then finished and is ready for the final test. This work is all light work, and there are a number of positions in which handicapped men could be employed.
In another part of the ignition factory, we find the breaker mechanism and other ignition apparatus being manufactured. This mechanism requires considerable machine work, which is done on special machines in the machine-shop department. After these parts have been machined and inspected they come through the assembly department, where the ignition apparatus is assembled. Here we find the workers at benches assembling the very fine delicate parts of the apparatus. The small springs, platinum points, screws, etc., must be placed in their proper places and with proper tension. After the ignition apparatus has been properly assembled it is inspected, and then goes to the testing department, where apparatus is tested as to its efficiency, etc.
In another department, wires are cut and made into proper lengths for certain ignition jobs. Here the terminals are soldered to the ends of the wires. Sometimes these operations are done on a conveyer system. This work is done sitting, and is well adapted to disabled men.
In the ignition, assembly, inspection, and testing departments, there are a number of operations that could be done by men with one arm and no legs, one leg and two arms, one eye, one arm and one leg, by men who have lost their hearing, and even by men who have been blinded. The work as found in the ignition department is light, working conditions are good, and the pay is average.
Where the ignition manufacturer manufactures magnetos, we find a little different class of work going on. Armatures are wound with primary and secondary windings, and this is done on a somewhat specialized machine. Insulation, also, is somewhat specialized, and assembly work differs somewhat from other assembly work. Magnetos must be made, charged, and tested. Condensers are of a special design. As a whole, however, the work in the magneto department requires about the same class of workmen as are found in the ignition department.
PLAN No. 1133. STARTING AND LIGHTING EQUIPMENT
The electrical equipment of the automobile has reached a point of development which has brought about a large demand for this particular kind of apparatus. A number of factories make a specialty of this kind of equipment.