New Vacuum Break For Planes Stops Ship Within Fifty Feet. Los Angeles, California-- L. R. McLaughlan of this city, has invented a new vacuum break for airplanes which is set to stop the ship at 50 feet. The new device is made of duraluminum and is cleaned to be applicable to all types of ships. In operation, the air brake, which resembles an equalizer on a submarine, is controlled by an automatic clutch in the cockpit of the plane. It presents a hollow surface after year forming a vacuum, which according to its inventor, offers 54 square feet of air resistance to the descending plane. Photo shows: The inventor with a model ship, showing how the brake works.

Underwood & Underwood · [ca. May 1928]

[Information from item housing] Inventions