Modern Gasworks Practice

THE MECHANICAL HANDLING OF MATERIALS 301 shaped trough plate and on to the drag-bars in front of the push-plate. The structure carries a push-plate and drag-bars which is connected at rear end to a “ push-Chain,” with links butting together, after the manner of the joints of a rule. Thus the chain can bend in one direct.ion only. This push-chain is actuated by a sprocket driven STORAGE HOPPER Fig. 219.— Section of Horizontal Retort House, showing Coal-feeding Arrangements, Chabgino Machinbby, Hot (Joke Conveyor, etc. through reduction gear by a reversible crane type motor. The trough plate rests on rollers, and is run out (by frictional action of the charger-discharger) against the retort mouthpiece, where it is held by a toothed clutch while the machine is in action. It so forms a continuation of the retort, incidentally reducing to a minimum dust