The H. W. Johns Manufacturing Company

Exhibits, Convention Notes and

Personals.

·

·

The H. W. Johns Manufacturing company, of New York, made an attractive exhibit of its insulating materials. These consist principally of moulded mica trolley line insulators, vulcabeston, which has been worked into almost every conceivable shape and size for the insulating parts of electrical apparatus, and asbestos, which is usually utilized in the form of sheets, mill-board, tubes, etc. Samples of several new trolley line materials were shown, prominent among which was the new "Giant" strain insulator. This is simple in construction and very powerful, having an average breaking strain of 6,500 pounds. It is insulated with sheet mica internally and is completely covered exteriorly with moulded mica. The design is such that no parts can become displaced under the severest strain, and all parts are thoroughly protected so that the sheet mica and the insulator itself cannot absorb moisture. Vulcabeston motor spools, controller parts, bushings, moulded mica tree insulators, weatherproof incandescent lamp sockets, together with handsome sample boards and a tastefully arranged exhibit, made the display a prominent feature of the Exposition Hall. A sign announced the fact that the H. W. Johns Manufacturing company had been the recipient of an award at the World's Fair for its insulating materials. W. F. D. Crane, manager of the company's electrical department in New York; J. W. Perry, of the Philadelphia house, and H. A. Reeves, of Chicago, were in attendance. E. B. Hatch, of the Johns-Pratt company, Hartford, Conn., also made the exhibit his headquarters.

·

·