. Electric railway journal . them it wouldappear that an equally satisfactory arrangement wouldbe the often used one of tying circuit breaker porcelainsto the spans and passing the light or signal wiresthrough the holes in the porcelain. Such an arrange-ment is cheaper and the tie wires and insulators, thoughnot so permanent as the hangers, will ordinarily last aslong as the spans to which they are attached. Themethod shown in the picture would be of more valueonly when all of the material was second-hand and couldnot be used to advantage elsewhere. Portable Motor-Operated Bench Planerfor Ligh
. Electric railway journal . them it wouldappear that an equally satisfactory arrangement wouldbe the often used one of tying circuit breaker porcelainsto the spans and passing the light or signal wiresthrough the holes in the porcelain. Such an arrange-ment is cheaper and the tie wires and insulators, thoughnot so permanent as the hangers, will ordinarily last aslong as the spans to which they are attached. Themethod shown in the picture would be of more valueonly when all of the material was second-hand and couldnot be used to advantage elsewhere. Portable Motor-Operated Bench Planerfor Light Operations ABENCH planer and jointer developed for operations usually done by hand has recentlybeen placed on the market. The mechanism consists ofthree knives for an alternating-current equipment andtwo knives for direct current equipments driven by asmall motor through a flexible coupling, the differencebeing due to the fact that as the direct-current motorcan be operated at a higher speed fewer knives are re-. BENCH PLANER WITH SPECIAL END FLANGE ONPULLET END quired than for alternating-current operation. The useof such a machine practically eliminates hand also saves time as the planer is portable and can betaken to the work either in the shops or outside, thussaving the time ordinarily consumed in traveling backand forth to larger stationary jointers. The device wasdeveloped by J. D. Wallace & Company, Chicago, 111.,and the motors used are of General Electric con-struction. These motors are standard equipment andcan be furnished for operation on any commercial cir-cuit. The device and motor are a single unit with directdrive. Burning Powdered Coal Successfully The Additional Equipment Necessary Consists ofCrushing and Pulverizing Mills, Driers, In-closed Storage Bins Together withConveyors and Elevators AN EXPERIMENT in the burning of powdered coalwas carried out recently by the Puget Sound Trac-tion, Light & Power Company. For this test a
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