. Railway mechanical engineer . omical operationare circumscribed by the motive power. For that reason thechoice of the locomotive should be made with extreme final decision should be based on a definite knowledgeof the economies that can be realized, not on unsupportedopinion. Engineering methods are essential in working outthe solution and the study of the problem offers a field forconstructive co-operative work by the members of the engi-neering societies. Sifter for Renovating Old Sponging WasteBY NORMAN MacCLEOD In the reclamation of dirty sponging waste the device illus-trated c
. Railway mechanical engineer . omical operationare circumscribed by the motive power. For that reason thechoice of the locomotive should be made with extreme final decision should be based on a definite knowledgeof the economies that can be realized, not on unsupportedopinion. Engineering methods are essential in working outthe solution and the study of the problem offers a field forconstructive co-operative work by the members of the engi-neering societies. Sifter for Renovating Old Sponging WasteBY NORMAN MacCLEOD In the reclamation of dirty sponging waste the device illus-trated can be used effectively for sifting out dirt, sand, sifter consists of a wooden framework, made of 2 3/16in. material, 2 ft. 11 J/2 in. on each side. The sides are cov-ered with smoke box netting, 2J4 meshes to the inch, oneside being provided with a hinged door for inserting andremoving the waste. A small clamp, when swiveled in place,prevents the door from opening. To the whole sifter are attached trunnions or bearings. Device for Sifting Dirt Out of Old Sponging Waste which are placed on diagonal corners on the outside. Thesetrunnions, as shown at A in the illustration, are preferablymade of 2^ in. W. I. pipe, with the ends split and flattened,being bolted to the framework with ^ in. bolts. The device is mounted with one bearing in the side wallof the building, and the other in an outboard support. AA]/2 in. by 32 in. diameter pulley, driven by a motor or con-venient pulley from a nearby main shaft, is arranged to turnthe sifter at about 30 rev. per minute. This device isextremely useful as a part of waste reclamation equipment.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
