. Electrical news and engineering. reached to again double the unit accomplish this with the floor space limitations of theoriginal transformer pockets, it was necessary to increasethe height dimensions very materially. The new units mea-sure 24 feet from the rails to the top of the high tension heads. This accounts for the slim appearance of the tankas shown in the accompanying cut. The floor space limita-tions also precluded the possibility of using core type con-struction in this case. The transformers are shell type units with reinforcedsteel plate housing and supports. The eco
. Electrical news and engineering. reached to again double the unit accomplish this with the floor space limitations of theoriginal transformer pockets, it was necessary to increasethe height dimensions very materially. The new units mea-sure 24 feet from the rails to the top of the high tension heads. This accounts for the slim appearance of the tankas shown in the accompanying cut. The floor space limita-tions also precluded the possibility of using core type con-struction in this case. The transformers are shell type units with reinforcedsteel plate housing and supports. The economy in weightby this construction made it possible to utilize the existingfoundations without material change, in spite of the fact thatthe main weight of the transformer loading is carried over tothe central foundation wall by a short cantilever construc-tion. The transformers have button type spacers betweencoils and the coil ends extending above and below the coreare firmly braced against distortion from short circuit Particular attention is drawn to the appearance of the corem the accompanying cut showing the core and the coil hous-ing. The cut, however, does not do justice to the unusuallyfine results which the Peterborough organization is accomp-lishing in piling sheet steel laminations. The tanks for these transformers, which, it will be noted,are without horizontal seams, were made at the DavenportWorks, Canadian Allis-Chalmers, Limited. Motor-Driven Drill and Tapper To speed up production without danger to machine oroperators, is the purpose of the new Barnes self-oiling, allgeared drill and tapper which handles high speed twist drillsfrom J/>-inch to 2 inches. This is essentially a manufacturingmachine, built for heavy duty work and rapid are entirely eliminated, all power being transmittedthrough gears. With the exception of the spindle sleevesand cross spindles, all bearings and all gears are continuouslylubricated by an automatic self
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen27donm
