. Electric railway journal . Nos. 2 to 15, 29, 37, 38, 62 and 66 go tocentral loop. Routes Nos. 10, 63, 64, 71, 72, 73, 81, 82,83 and 84 go past the loop or within one-half block of it. Porcelain Insulators for GridSuspension BY JAMES W. BROWN, Superintendent of Shops Wilkes-Barre & Hazleton Railway andLehigh Traction Company In view of the difference of opinion among mastermechanics as to the desirability of using porcelain in-sulators for grid suspension, the practice of the Wilkes-Barre & Hazleton Railway, Hazleton, Pa., may be ofinterest. This is a typical third-rail, high-speed, in-terurb
. Electric railway journal . Nos. 2 to 15, 29, 37, 38, 62 and 66 go tocentral loop. Routes Nos. 10, 63, 64, 71, 72, 73, 81, 82,83 and 84 go past the loop or within one-half block of it. Porcelain Insulators for GridSuspension BY JAMES W. BROWN, Superintendent of Shops Wilkes-Barre & Hazleton Railway andLehigh Traction Company In view of the difference of opinion among mastermechanics as to the desirability of using porcelain in-sulators for grid suspension, the practice of the Wilkes-Barre & Hazleton Railway, Hazleton, Pa., may be ofinterest. This is a typical third-rail, high-speed, in-terurban road, and was one of the first in this country. The illustration reproduced herewith shows themounting of the grids used by this company. The gridsare suspended from a frame of rectangular form aboutIV2 ft. in width and 10 ft. long, made of % in. x 3 inflat iron, and suspended from the car floor by wrought-iron hangers. The holes for the bolts and projectionsfor the steel washers with which the grids are attached. ARRANGEMENT OF INSULATORS, FRAME AND GRIDS ON &H. RAILWAY are laid out and drilled by use of a master jig. Theframes, therefore, are interchangeable. Porcelain insulators of the flat, round type are placedabove and below the iron frame. The grids are at-tached to the frame with H-in. x 9V2-in. bolts withstandard nuts and lock washers. Each bolt is insulatedfrom the frame by two round porcelain insulators, oneabove and one below. On both sides of the insulatorare thin fiber washers for protection of the porcelainagainst mechanical injury. Outside of each fiberwasher is a protecting washer made of galvanizedpressed steel. Of these pressed steel washers, the oneson either side of the steel frame have a projecting col-lar which is lYi in. in diameter and % in. deep. Thiscollar fits down into a hole in the rectangular the holes in the insulators are 1 in. in diameter, andthere is only 1/32-in. play between the washers andthe V^-in. bolt which extends thro
Size: 1996px × 1251px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
