. Electric railway journal . conduit, was tried for advancing the shovel along pavedstreets, but the windlass and connecting ropes occupied somuch of the street that this method was abandoned and thepush car scheme was tried and found very satisfactory. The push car is an old single-truck, two-motor street carto the axles of which have been added extensions withdouble-flanged wheels designed for the 10-ft. gage of thetemporary shovel track. These axle extensions are boltedonto flanged couplings which are fastened to the ends ofthe car axles, as shown in an accompanying or fo
. Electric railway journal . conduit, was tried for advancing the shovel along pavedstreets, but the windlass and connecting ropes occupied somuch of the street that this method was abandoned and thepush car scheme was tried and found very satisfactory. The push car is an old single-truck, two-motor street carto the axles of which have been added extensions withdouble-flanged wheels designed for the 10-ft. gage of thetemporary shovel track. These axle extensions are boltedonto flanged couplings which are fastened to the ends ofthe car axles, as shown in an accompanying or four rail lengths of temporary track are laid in ^-Bottom ofExcavation in fDevil Strip, End View showing position or Shovel on Truck. £tct Special Truck for Automatic Shovel. of Tread-Electric Rtf. Jtmi~nal built the trench on the temporary track which couldsomewhat in advance of the work. To provide support forthe shovel when digging in paved streets, rails are laid oneach side of the trench to a 10-ft. gage, being placed directlyon the pavement and held by temporary spacing redsclamped over the railheads. A special cradle was built mthe United Railways shops to carry the electric shovel truckon these rails at 10-ft. gage. The cradle is bolted to thetruck of the electric shovel. It is built of ro-in. channelsreinforced at the corners and carrying four 12-in. double-flanged running wheels which support the cradle and inturn the truck on the 10-ft. gage temporary tracks. The position of the electric shovel, its truck and thecradle over a trench in a city street is illustrated in one of Axle for Electric Shovel Push Car advance of the shovel. The shovel can be moved forwardami back as desired by the use of the motors on the pushcar. The body of this type of
Size: 2713px × 921px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
