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174 an overside derrick. This part of the gear may be more fully described as follows: Each set of gear, of which there are eight on the Paulina, consists of two derricks, a special winch and a scoop, with the necessary blocks and ropes. The scoop hangs upon two ropes, one of which leads to each derrick. The latter are stationary, one being fixed over the hatch, and the other over the ship's side, so that by tightening or slackening either of the leads, the scoop may be made to hang plumb in either of these positions. The special feature of the winch is that it is provided with three barrels, the two larger of which Fic. 5--Scoop Asout To BE EMPTIED. are used for lifting and lowering the scoop, moving it sideways and opening the door in the bottom. These two bar- rels can revolve in the same or opposite directions, as desired. The lifting rope from the center derrick is led under one barrel, while the rope from the overside derrick is led over the other. Fic. 6--Tue Scoop: HANGING OVER THE Truck: BEING EMPTIED. After passing through the blocks. of their respective derricks, the other ends of these ropes are permanently shackled together and connected at this junction to the lifting hook. When the: load is being *lifted by the center derrick, the two barrels revolve in the opposite di- rection, so that the slack of the overside rope is taken in at the same rate. When the load is clear of the hatch, the lifting barrel is reversed, and the load brought TAE Marine REVIEW May, 1919 VIEW OF THE SIEURIN WINCHES AND DERRICKS. ' across the deck and so far outboard as required, by paying out the lifting rope and taking in the overside rope. When the load is over the ship's side, and has to be lowered, the overside barrel is re- versed, and both ropes paid out with the same speed. The smaller barrel can be driven independently, and winds in the drag rope, which is attached to the front of the scoop after passing through the block on the derrick over a roller at'the hatch end, and round a movable block (A). The block can be attached in the desired position either on the hatch coaming, deck girder or bulkhead stiffener, as may be required to suit the working out of the ore. The scoop, as before stated, holds about 2 tons of ore, and is so constructed that it may Ad} slide along the top of the cargo without being filled, nor dive down into the ore and turn over. It is provided with a hinged door in the bottom (see _illus- tration), through which it can be emp- tied, this door being opened by slacken- ing away the lead over the center der- rick when the side derrick is holding the weight. While the scoop is being filled and both the lifting ropes are slack, the. door is automatically locked to prevent escape of the contents through accidental opening. Practically no hand THE STEAMER MeERcuR DiscHARGING COAL WITH SIEURIN'S PATENT DISCHARGING GEAR AT FLENSBURG.