NEW ELECTRIC CABLE

Evening Star, Issue 19663, 16 September 1927, Page 2

NEW ELECTRIC CABLE

A new type l of electric cable for small currents, such as those used for sounding bells and buzzers, and for starting and stopping machinery, has been invented by a Hungarian electrical engineer of Berlin, Oscar Nagy. It does away with tho necessity for having push buttons at sot points, for if tho cable is squeezed at any place throughout its length the circuit is completed and tho current does its work. This is accomplished by having tho wires woven into a sort of loose braid, separated by an elastic non-conductor, which permits contact when pressure is applied. Many uses are suggested for the new cable. It is expected to find a large use around complicated machinery, where threatened accidents to either operator or material demand instant stopping. Since it can be operated with feet, knees, elbows, or any other part of the body, its advantages over ordinary types of switches and levers is obvious. Hidden beneath carpets or otherwise concealed, it is expected to be useful in burglar alarm systems, Strung along trenches, or along the sides of naval vessels, it will enable officers to signal to their mep_ from any point, and by rapid successive pressures messages cap ' be. transmitted in ordinary Morse code, making it an emergency telegraph system. An especially interesting safety application is found in its use in mines and quarries, where a fall or slide of rock automatically , sounds its own emergency signal.