. Ports and terminal facilities . shape of a flatw with the sides at an angle of 35 degrees. Under the twolower points of the w are two 42-inch pan conveyors. Theseconveyors move the material forward. At the bow the con-veyors rise and discharge into a cross chute which itself dis-charges into a 42-inch discharging conveyor boom with a radiusof 67 feet. This conveyor will pile the material 523^^ feet fromthe sides of the ship at an angle of 90 degrees. The mechanismis driven by two 150-H. P. engines. Such a boat can dischargeu 210 PORTS AND TERMINALS at any place where there is a wharf for a m
. Ports and terminal facilities . shape of a flatw with the sides at an angle of 35 degrees. Under the twolower points of the w are two 42-inch pan conveyors. Theseconveyors move the material forward. At the bow the con-veyors rise and discharge into a cross chute which itself dis-charges into a 42-inch discharging conveyor boom with a radiusof 67 feet. This conveyor will pile the material 523^^ feet fromthe sides of the ship at an angle of 90 degrees. The mechanismis driven by two 150-H. P. engines. Such a boat can dischargeu 210 PORTS AND TERMINALS at any place where there is a wharf for a minimum cost at therate of 600 to 700 tons an hom-^ (Fig. 83). Unloading from steamer to freight cars is less frequent thanfrom steamer to stock pile. The importation of ores from Cuba,Spain, Northern Africa, and Sweden is increasing. Thereforethis movement is coming more into evidence. There is much un-loading from boat to cars in the case of coal. However themovement from the mines in the first shipment out is the An example of an apparatus made for unloading from ship tocars is the McMyler unloader, in Fig. 84 which shows two ma-chines at the Girard Point Terminal of the Pennsylvania Railroad,Philadelphia. The two machines are unloading the Swedishore steamer Tordenskjold, Tonsberc, into cars. The machineconsists of a tower 96 feet high. The base is a full gantry span-ning two railroad tracks. Forty-nine feet above the level of thewharf is the track on which the grab or scoop buckets of three andtwo tons capacity respectively work the cargo from ship tohopper. The buckets travel along a track one-third of which isbuilt solid in the tower. The remaining part is a movable boomwhich is hoisted to a vertical position to avoid fouling the tackle * International Marine Engineering, Oct., 1916. BULK FREIGHT 211 when moving the ship. The hopper which feeds the ore into thehopper cars acts as a reservoir. The boom-and-hopper principleis a usual arrangement for all buck
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