Rubber Telephone Cord Stretches (Apr, 1935)
Filed under: Origins, Telephone — @ 7:55 pm
Source: Modern Mechanix ( More articles from this issue )
Issue: Apr, 1935
Buy on Ebay
Source: Modern Mechanix ( More articles from this issue )
Issue: Apr, 1935
Buy on Ebay
Rubber Telephone Cord Stretches
A BAND of gum rubber, woven between the wires in the center of a telephone cord, gives it an elasticity which permits a stretch of four feet on a cord originally only one foot long.
Small wires are packed into the rubber center like a spring to coil when released. Said to be equally as durable as the conventional cloth wrapped cords, the new type can be extended to four times its original length.
