. Electric railway journal . s doubt-ful if your readers would care to wade through it. Thesuggestion is, therefore, offered that if anyone is really in-terested he should consult the original records before form-ing a final opinion regarding the matter which Mr. Doddhas so ingeniously treated. Geo. L. Fowler. AIR SANDER ON INTERURBAN CARS A. C. Adams, superintendent motive power Oregon Elec-tric Railway and United Railways, has designed and had inoperation for over a year on all of their passenger motor The sand drops by gravity from the sand box through alY^-m. iron pipe into a trap made of
. Electric railway journal . s doubt-ful if your readers would care to wade through it. Thesuggestion is, therefore, offered that if anyone is really in-terested he should consult the original records before form-ing a final opinion regarding the matter which Mr. Doddhas so ingeniously treated. Geo. L. Fowler. AIR SANDER ON INTERURBAN CARS A. C. Adams, superintendent motive power Oregon Elec-tric Railway and United Railways, has designed and had inoperation for over a year on all of their passenger motor The sand drops by gravity from the sand box through alY^-m. iron pipe into a trap made of a x i-in. stand- ard pipe cross which is closed on the bottom with a iy^ plug. Should the trap become clogged the plug can beeasily removed. Air is admitted to the trap from the whistle pipe througha yi-m. pipe into a horizontal nozzle which extends aboutthree-fourths of the way through the trap and at rightangles to the drop of the sand. The admission of air iscontrolled by a globe valve close to the motormans brake. Pipe Chimp Electric Ry Journal to SanJ Trap Layout of Sanding Equipment on Oregon Cars valve. From the trap the sand is blown through a which connects to a i}i-m. air hose 36 in. long, pro-viding for the swing of the truck. The bottom end of thehose has a nipple which connects through a street ell into ai-in. x i-in. pipe cross, where the sand is separated bymeans of a wedge-shaped plug in the bottom of the separated sand goes to each leading wheel throughi-in. pipes which are bent to deliver sand to the railsdirectly ahead of the wheels. The pipes to the wheels aresecurely fastened to the truck frame. The rigging is made up in the companys shops, as allthe material which enters into the construction is easilyavailable in any shop of moderate size and it can easily beput together by ordinary mechanics. In the entire time that it has been in operation not asingle case has occurred where sand did not flow freelyto rails. An over-
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