The Mechanical Handling and Storing of Material

37° THE MECHANICAL HANDLING OF MATERIAL through the plates c, which latter are held by staples d. The whole is suspended from the main water supply pipe by rollers/and chains e. Pipe a has a further extension, and Figs. 517, 518, and 519. Coke Quencher of the A. G. für Kohlendistillation at Gelsenkirchen, Germany. a branch g which supplies a copious stream of water against the front of the coke, and after this begins to break, to its inner parts. The coke quencher of the A. G. für Kohlendistillation at Gelsenkirchen (Figs. 517 to 519) differs from the last described apparatus inasmuch as the nozzles, which are liable to become choked, particularly when dirty water is used, are omitted, and the pipes are replaced by two water jackets, forming water chambers a, which are continuations of the oven sides. The water is admitted through the main pipe /?, which is connected with the flexible supply pipe by means of the sluice valve r, and issues through perforations in the inner walls of the chambers. The flow is regulated by taps d between the pipe b and the chambers. The latter are closed at their lower extremities by plate e, which can be removed for cleaning pur- poses. The apparatus is mounted on an iron frame running on four wheels on channel-iron tracks, which are filled up between the wheels by inverted channel-irons f, so as not to impede the pushing operation. Two pivoted vertical strips g fit against the oven door frames h, and prevent access of air and a Fig. 520. Hearth with an Incline of 15° to 30°. waste of coke. The water pressure for these appliances must be at least 75 lb. per square inch, so that the jets are forced out of the perforations with sufficient pressure. This obviously means a larger water consumption. The handling and quenching methods hitherto described are practically all for