. The Street railway journal . leveland has been gone over duringthe past few months and the return circuit system has beenbrought up to a very high state of efficiency, and it will bemaintained in this manner. This will be simplified throughthe fact that an immense amount of electric welding of jointsis being done; in all there are about 25,000 of such joints (). About 12,000 joints were put in last fall by the LorainSteel Company, and incidentally it is interesting to note thatonly forty or fifty of these have thus far broken open. About3000 thermit welds are also in use, and these
. The Street railway journal . leveland has been gone over duringthe past few months and the return circuit system has beenbrought up to a very high state of efficiency, and it will bemaintained in this manner. This will be simplified throughthe fact that an immense amount of electric welding of jointsis being done; in all there are about 25,000 of such joints (). About 12,000 joints were put in last fall by the LorainSteel Company, and incidentally it is interesting to note thatonly forty or fifty of these have thus far broken open. About3000 thermit welds are also in use, and these are giving good October 14, 1905.] STREET RAILWAY JOURNAL. 73i satisfaction. As an experiment, the company is also putting onseveral hundred U-shaped copper bonds, soldered to the side ofthe rail, the work being done by the Electric Railway Improve-ment Company, of Cleveland. The standard bond, however, is a12-in. No. 0000 copper bond with compressed head, this beingused on all 9-in. girder and 80-lb. T-rails. All old feeders. panies, waterworks employees, telephone employees and cityauthorities, and he has discovered a large number of cases prov-ing this. On the city viaducts, water and gas pipes have beenstrung on the structural work of the bridge instead of on thestone piers designed for them. Circuits from motors on thebridges were found grounded to pipes. Lighting circuits to
Size: 1888px × 1324px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
