OCR Text |
Show Beads for Insulation. In certain Installations, such as radio equipement, arc lamp wiring and laboratory apparatus. It is often necessary nec-essary to resort to beads for lnsular-ing lnsular-ing bare wires. Heretofore, says the Scientific American, the beads have been of a plain design, with rounded ends, resulting In a rigid . covering which prevented the covered wire from being bent as desired, or left bared sections of the wire between the beads because fewer beads had to be strung In order to allow for bending. An English concern has recently Introduced a new type of bead which Is rounded at one end and hollowed out at the other, thus permitting of one bead fitting Into the hollow of the next bead. These beads permit of covering a wire for Its full length, yet do not Interfere with the bending of said wire. |