. The street railway review . truck is climbing a grade, and this conditionwill be permanent, as there is no wear of parts to make it growworse. Fireproof Protection for Cars. The new underwriters rules for car wiring and equipment of carsformulated by a joint committee from the American Street RailwayAssociation and the Underwriters National Electric Association re-quire that in order to meet the approval of the fire underwriters andreceive the benefit of lowest insurance rates, the underside of carbodies must be protected by approved fire resisting insulating mate-rial not less than % in. in
. The street railway review . truck is climbing a grade, and this conditionwill be permanent, as there is no wear of parts to make it growworse. Fireproof Protection for Cars. The new underwriters rules for car wiring and equipment of carsformulated by a joint committee from the American Street RailwayAssociation and the Underwriters National Electric Association re-quire that in order to meet the approval of the fire underwriters andreceive the benefit of lowest insurance rates, the underside of carbodies must be protected by approved fire resisting insulating mate-rial not less than % in. in thickness. Foreseeing that the rapid de-velopments in heavy electric railway service would soon make neces-sary a more thorough fireproof type of car construction, the H. Co., of New York, about a year ago brought out anew composition of fireproofiing matcri^il which is known as Tran-site. Transite is an asbestos lumber, designed to be used as asheathing board under the car body for the purpose of protecting. FORMS OF ELECTROBESTOS. the car body from any flame or fire that might possibly be causedunder the car through electrical or any other means. Transite isfurnished in thicknesses ranging from ^ to ^ in., and is furnishedin sheets 40 x 40 in. standard sizes, and in special sizes 40 in. wideup to 5 ft. long. Transite is unique in that it can be worked likelumber, that is, it can be sawed, chiseled or nailed and can be paintedor decorated as may be required. The H. W. Johns-Manville Co. has also brought out a material,known as Electrobestos, which is made in the form of conduitsto receive all forms of electrical wires and cables used in the wiringof cars, including the motor leeds and connections, air brake com-pressor connections and for interior and headlight wiring. Tltis ma-terial is similar to Transite in that it can be worked with ordinarytools just the same as lumber. Both these materials possess consid-erable tensile strength, and combine a high degre
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
