Illinois Society of Architects · Chicago · leaf 253
g at the bottom and discharg-ing at the top and then to lower the pack-ages either tlirough spiral chutes or throughdirect drop lowering machines, which willreceive packages on one floor and deliverthem on a table at a lower floor. The drop devices are very mucli less ex-pensive than spiral chutes,… … Bari<l and Box Elevator. 253 SOME SUGGESTIONS ON WIRING SPECIFICATIONS. By Fred J. Postel.—Consulting Eng-ineer. Always state whether the wiring is to befor direct or alternating current. If alter-nating current is to be used and the wiringinstalled in iron conduit, all the conductorsof any one…
Architecture · Building · Architects
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