one individual who gets a high praise is frank julian spring. he was a graduate of the united states naval academy and after he completed his mandatory tour of duty. he went to work for thomas edison. well working with edison, he became fascinated with the possible application of electricity to transportation. he then left in the early 1880's and created his own manufacturing concern that focused on building electric trolleys. that's a dead end. spring was successful in honoring a contract with private investors to electrify the richmond union passenger railway. he built or had his company construct 40 motorized cars. what spring did was how to figure out the motor of the car. spring has a system of reporting springs that are used for the traction motors. the jarring that occurs as a result is no more. discover that the motors failed or is there were constant adjustments necessary. spring has a system of reporting springs that are used for the traction motors. the jarring that occurs as a result is no more. also he worked on motor components mak