. The Street railway journal . CAST-STEEL GEAR FOR GE 66 MOTOR, INTERBOROUGHRAPID TRANSIT COMPANY upon which to compare results with various classes of equip-ment on the same road. In arriving at the ton-mile unit, itwill, of course, be necessary to take the weight of the equip-ment without passenger load, and while this will not include the passenger-load factor, it will give a better basis for com-parison than the car-mile alone. The accompanying drawings show the solid cast-steel gear■now in use and also the proposed cast-steel center gear with. „(,105
. The Street railway journal . CAST-STEEL GEAR FOR GE 66 MOTOR, INTERBOROUGHRAPID TRANSIT COMPANY upon which to compare results with various classes of equip-ment on the same road. In arriving at the ton-mile unit, itwill, of course, be necessary to take the weight of the equip-ment without passenger load, and while this will not include the passenger-load factor, it will give a better basis for com-parison than the car-mile alone. The accompanying drawings show the solid cast-steel gear■now in use and also the proposed cast-steel center gear with. „(,105 ]rim^insidp. Wrought at«el r:m^on cast 3tcol c ? outside Street GEAR WITH WROUGHT-STEEL RIM SHRUNK ON CAST-STEEL CENTER FOR GE 66 MOTOR, INTERBOROUGH RAPID TRANSIT COMPANY wrought-steel rim. The latter form will, of course, be moreexpensive in first cost, but it is believed that many of thesame arguments can be urged in favor of a gear with a shrunkrim that have been advanced in favor of the steel-tired instance, the steel center of a gear of this type can, withentire justification, be considered as a permanent part of thetruck investment, and the cost of maintaining gears will bevirtually confined to the cost of renewing the rim. The re-sults that will be secured with the solid manganese and theKrupp case-hardened gear are still problematical, but confi-dence is expressed that these harder metals will give a goodaccount of themselves in the application to the making ofgears for extra heavy service.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
