The Mechanical Handling and Storing of Material

FLOATING LOADING DEVICES 487 Floating Grab Transporter at Table Bay Harbour.—This very fine installa- tion, which was built by Messrs Frasers & Chalmers, will be readily understood from Figs. 681 and 682. Several loading devices fitted with grabs have already been described more fully. The explanation given on the diagram will make this example quite clear. Loader at Rotterdam.—A floating loading device used in the harbour of Rotterdam is shown in Fig. 683. It is similar to the loader, Fig. 679, but has the additional band conveyor contained in a double lattice girder of jib d, which takes some or all the coal across the ship into a portable receiver f on the quay wall; this com- municates with the bunkering holes on the quay side of the ship by shoot e, so that with this installation the bunkers on either side of the ship can be filled simultaneously. The Lidgerwood-Miller Marine Transfer for Broadside Coaling in Harbour.—This coaling device was designed and installed on collieis of the United States Navy for the purpose of rapidly discharging their own coal with a minimum of hand labour. Before the introduction of this apparatus forty men in the hold and two at the winches would discharge 30 tons of coal per hour per hatch. With.the marine transfer one man at the winches can discharge 138 tons per hour without men in the hold. Unlike other similar devices, the track for the load is here not on a rigid rail but