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McMyler Dumper The Pennsylvania wich Point, Phila- cord--It Marks the Lake Method of at Greenwich Railroad's New Installation at Green- delphia, is making an Excellent Re- Pennsylvania's | Loading Coal at Coast Terminals Adoption of _ the FIG. 1--COAL DUMPER AT GREENWICH POINT, SHOWING CAR PARTIALLY OVERTURNED T Greenwich piers, Philadel- phia,~ the Penn- sylvania railroad chas put into commission a new. coal dump- years has adopted quite gen- J erally by trunk line First Cargo Dumped atrailroads for facil- . aie Sept. itating the trans- shipment of coal at their Atlantic coast terminals. The construction of this plant was authorized by the rail- road on Jan. 10, 1912, and contracts thereupon were let to the Engineering Construction Co. and the McMyler Interstate Co. both of Cleveland. These concerns began their work on April 1, 1912, and on Oct. 1, 1913, the completed plant was put in operation. Since then it has been in constant ser- vice, on a 20-hour schedule, the men working in two shifts of 10 hours each. The machine is capable of ele- vating a car of coal, discharging its contents and again lowering it to its Original position in the short period of 1% minutes; as a rule, however, its steady working performance in or- dinary weather is to dump 25,000 tons of coal in 20 hours, or at the rate of 1250 tons per hour. In extremely cold weather, when the cars must be er of. the .typé« 'which of late & been thawed out before dumping, this re- duces to: 15,000 -tons, -or- 750. tons: an hour = : : Greenwich yard for many years has been the point at which the Pennsyl- vania railroad has loaded into ocean- going vessels the coal consigned from the mines along its lines to foreign or . coastwise ports. Until the new coal dumper was installed ships were load- ed entirely from piers of the usual wooden trestle variety. Into bins in these piers the coal is dumped from hopper cars, thence being discharged, by gravity, through wooden chutes which direct the streams of coal through the hatches of the vessels. While this, under modern conditions, is not the most economical and efh- cient method of transferring coal from the cars to the vessel the addi- tional objection frequently is urged that by reason of the sheer drop from the end of the chute to the bottom of the hold, a considerable amount of breakage necessarily occurs which brings about an appreciable degree of deterioration in the quality and, con- sequently, the value of the coal. The new mechanical dumper is especially designed to eliminate the possibility of such breakage, being provided with a chute of telescopic construction. By means of cables which control its three members the length of this chute may be adjusted to conform to the depth of any vessel, and, as a re- -while the chute, sult, the coal passes to the bottom of the hold in a compact mass. As the hold becomes filled, the length of the chute is shortened and thus the coal, during the entire loading operation, flows, rather than drops, into the hold. The wooden piers which formerly con- stituted the entire loading facilities now are employed only when business is so brisk that the machine is unable to do all of the work. The piers are four in number; they have an aggre- gate capacity for loading 18,000 gross tons in 10 hours, while, by adding a night shift, the. capacity can be stretched out to 25,000 tons. The essential operating features of the new mechanical dumper are the tipple, which elevates and overturns the car; the pan, which receives the coal from the overturned car, and the chute, through which the coal flows from the pan into the hold of the vessel. The tipple and pan may be raised or lowered to correspond to the height of the particular vessel, in addition to the longitudinal motion described above, has a universal transversal motion which makes it possible to distribute uniformly to all parts of the hold. The movements of the tipple, pan and chute are controlled from cabs in the tower, being effected by means of ca- bles which are actuated by engines. The latter are located in the engine room in-the tower base. The cables -