[Trade Journal]
Publication: Electrical Review and Western Electrician
Chicago, IL, United States
vol. 64, no. 3, p. 151, col. 1-3
Electrose Arcover Line and Strain Insulators.
Louis Steinberger, an inventor well known in the insulator art, has succeeded (after a vast amount of labor and costly experimenting, having had to overcome seemingly insurmountable difficulties) in producing on a commercial scale what are believed to be absolutely reliable suspension line and strain insulators for every voltage. These "Arcover" insulators are said to meet every requirement in a highly satisfactory degree. Their very remarkable efficiency will doubtless at once receive due recognition from leading engineers and electrical manufacturing and constructing comŽpanies in all parts of the world.
These Arcover insulators are the only insulators with imbedded inter-linked strain or suspension members that are made up of a single, integral and uniformly solid mass of insulating material without joints. Even though the insulating material should become totally destroyed, the line canŽnot possibly fall to the ground.
The electrical and mechanical values of these insulators have been worked out to a degree of perfection never be-fore attained in this class of devices and are far in excess of ordinary requirements. Therefore they are especially well adapted for applications where unusually severe conditions prevail. These Arcover insulators possess a number of original and desirable features. Two or more units may be connected or disconnected in a fraction of a minute, no special tool being required; a plain wrench, a nail or even a piece of wire is all that is needed. No extra connecting member is required and there are no loose parts to be lost. The spacing of the units in their relation to each other has been worked out on scientific lines, to the best possible advantage.
The novel form of line clamp shown in connection with the Arcover insulators is also an invention of Mr. Steinberger, and possesses many admirable features; it has a smooth bore for gripping the wire or cable, thereby preventing crystallization and the possible breaking of the conductor at or near the clamp. It is designed so as to grip conductors of various diameters. It is light in weight, but sufficiently strong to break the conductor before slippage occurs. The metal parts employed in all these insulators are made of galvanized drop-forged steel.
In the table below are given the remarkable electrical and mechanical values of the 10-inch Arcover disk suspension and strain insulators, also of the 7.5-inch Arcover disk strain insulators:
Arcover disk strain insulators are made in the following diameters: 5.5, 7.5, 10.5, 12.5 and 14.5 inches. Arcover disk strain and suspension insulators are made in the following diameters: 8, 10, 12, 14 and 16 inches. These insulators are made by the Electrose Manufacturing Company, 60 Washington Street, Brooklyn, N. Y., of which Mr. Steinberger is president.
