. The Street railway journal . PLAN VIEWS OF TRUCK ON 4-FT. AND 4-FT. SVa-IN. GAGE, WITH GEAR CASES REMOVED TO SHOW EXTRA WIDE PINIONS with the gear engaging the motor pinion on its inner end;in this case the distance block is in contact with the outerface of the wheel. When the car reaches the point wherethe bridging rails taper outward to the wider rails, theblock is lifted, and thus the entire gage-fixing mechanismslides along the axle through the motion imparted throughthe wheel flange and rail groove. On reaching the wider June i, 1907.] STREET RAILWAY JOURNAL. 977 gage the block is dropp
. The Street railway journal . PLAN VIEWS OF TRUCK ON 4-FT. AND 4-FT. SVa-IN. GAGE, WITH GEAR CASES REMOVED TO SHOW EXTRA WIDE PINIONS with the gear engaging the motor pinion on its inner end;in this case the distance block is in contact with the outerface of the wheel. When the car reaches the point wherethe bridging rails taper outward to the wider rails, theblock is lifted, and thus the entire gage-fixing mechanismslides along the axle through the motion imparted throughthe wheel flange and rail groove. On reaching the wider June i, 1907.] STREET RAILWAY JOURNAL. 977 gage the block is dropped to come in contact with the innerside of the wheel. When changing from the wide gageto the narrow one this process, of course, is reversed. Theonly part subject to rapid wear is the distance block, which,therefore, is made with a renewable tongue. The important feature of braking is cared for by so. CAR EQUIPPED WITH GAGE-CHANGING MECHANISM mounting the brake-shoes that they are free to slide alongthe brake operating bar and hence are moved along thisbar by the portion of the brake block which engages withthe wheel flange. The same result may be obtained by linkconnections to a bracket mounted around the axle sleevewhereby a longitudinal movement of the sleeve producesa corresponding movement of the brake shoes. Similarly,a track brake can be made to move in unison with the restof the equipment. *-¥^ STORAGE AIR STATION AUTOMATIC CONTROL The accompanying diagram shows the connections of thedevices used to automatically control the compressor mo-tors in a storage air station, where compressed air is storedfor charging cars equipped with storage air brakes. Thethree functions of such a control system are: (i) The two compressor motors, of which only one unitis indicated in the diagram, must start and stopsimultaneously between certain maximum andminimum air pressures, just as in t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
