Electric Chiefs to Study New Fuelless Motor

FORCE THAT PULLS COMPASS NEEDLE USED, SAYS INVENTOR.

Pittsburg. Feb. 27.(AP) — Lester J. Hendershot, 29 year old West Elizabeth, Pa., Inventor, whose fuelless motor has gained the interest of Col. Charles A. Lindbergh and others prominent in the aviation world, wants the "humbug" eliminated from reports on his invention, which he developed while experimenting on an effort to produce an improved compass.

"Make it clear to the world," he said, in commenting on stories giving various descriptions to his creation, "that radio and its allied phenomena have nothing to do with my motor.

"The force that turns my motor is the same force that pulls the needle of a compass around — and there is nothing mysterious about that,"

Hendershot revealed that when he took up aviation three years ago he discovered that the ultimate of aviation depended largely upon the discovery or invention of an absolutely true and reliable compass" and that his first experiments were an effort to develop such an instrument.

"The ordinary magnetic compass does not point to the true North — it polats to the magnetic North, and varies from the true North to a different extent at almost every point on the earth's surface.

"There is another compass, the magnetic induction compass, that indicates the true North. But it must be set before each flight, and it is not always rellahie, I really got down to work on the idea about a year ago, and last Fall I began to see that I was headed toward my goal.

"I found that with a pre-magnetized core I could set up a magnetized field that would indicate the true North. but I didn't know just how to utilize that in a compass I set out to find.

"In continuing my experiments, I learned that by putting the same line of magnetic force North and South I had an indicator of the true North, and that hy cutting the magnetic field East and West I could develop a rotary motion.

"I now have a motor built on that pripeiple that will rotate at a constant speed, a speed pre-determined when the motor is built. It can be built for any desired speed, and a reliable constant speed motor is one of the greatest needs of aviation.

"The motor I demonstrated at Detroit has a speed of 1,800 revolutions per minute and develops 45 horse- power on a block. The motor is now in New York."

Asked what he intended doing with his motor, Hendershot said he had decided to do nothing without first consulting the Guggenheim Foundation and his attorney, Col. Harty Breckinridge, who also is Colonel Lindbergh's attorney. Hendershot will go to New York Tuesday to confer with Colonel Lindbergh and his backs, he sald, He denied knowledge of a corporation reporled to be in the process of formation to exploit his invention.