. The Street railway journal . Sqnare Cente liuilwuy Journal Hani Dry Filling FIG. 8.—SECTION OF TUNNEL AND STATION spoil wound from the bottom of the shaft, the cages beingsuspended from a pit-head superstructure and operated bythe winding gear situated with the other machinery in thebasement. The spoil was shot from the skips into binsserved by roads leading from the cages, and carts on theground floor were served from these bins by suitably con-trolled shoots worked by the carters as required. The depth of the shafts varied between 60 ft. and 90 ft.,and the winding was done very
. The Street railway journal . Sqnare Cente liuilwuy Journal Hani Dry Filling FIG. 8.—SECTION OF TUNNEL AND STATION spoil wound from the bottom of the shaft, the cages beingsuspended from a pit-head superstructure and operated bythe winding gear situated with the other machinery in thebasement. The spoil was shot from the skips into binsserved by roads leading from the cages, and carts on theground floor were served from these bins by suitably con-trolled shoots worked by the carters as required. The depth of the shafts varied between 60 ft. and 90 ft.,and the winding was done very satisfactorily by belt-drivenLidgerwood hoists with friction gear, the cage beingwound above ordinary flap keps and then lowered awayon free barrel to rest upon them,. 280 STREET RAILWAY JOURNAL. [Vol. XIX. No. 9. The hydraulic power for working the shields was de-livered by a system of piping with valves at a convenientplace in the tunnel for controlling the supply to the variouspoints. The stores were situated near this distributing point andcommunication with the engine room, offices, shields, effected by means of telephones, which when the tun-nels got through were connected up with all the otherdepots, thus forming a complete system enabling com-munication to be established between the head depot atPoole Street and any part of the railway. The purpose of this article being to describe briefly themethod of making a tube railway it is not the intention todescribe fully the electrical equipment, but a few wordsregarding the generating station and electrical equipmentwill be found interesting, and it is thought in a later issueit will be possible to describe this work more in detail. The space for the power house in Poole Street, whichhas
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
