Publication: The Commoner and Glassworker
Pittsburgh, PA, United States
Recently Granted Insulator Patents.
L. Steinberger, of New York City, has been granted a patent on a tubular insulator. The invention relates to insulators, the more particular object being to produce a high-tension insulating tube suitable for insulating cables, wires, and other conductors energized by high-tension currents, the tube providing a very high degree of insulation and at the same time affording great mechanical strength.
A patent on a high-potential strain insulator, granted to the same party, relates to strain insulators used in connection with electrical conductors, and more particularly to conductors adapted to convey currents of high potential. Among its many purposes, one is to give the various parts of the strain insulator such conformity as will confer upon them a comparatively high degree of mechanical strength coupled with a high dielectrical capacity.
J. T. Bond, Palatka, Fla., has been granted a patent on an insulator designed for use in inside and outside work, and for outside work where wires pass along buildings and the like, and also for pole work. Under-cut edges of an annular groove form a species of hook for retaining wires in place in certain pole work. This form of groove assists in stringing wires when constructing new lines or renewing old, since the wire may be laid in its groove during the construction and afterward secured in place.