. The Street railway journal . pro-vided with key. Details of construction of wheels and axlesare clearly illustrated in the accompanying cuts. The diameterof the axle at center is 6y2 ins., at gear seat7 13-16 ins., and at wheel seat 7^4 ins. Pro-vision is made that axles are to be turned oncollars, journals, dust guard bearings, wheelseats, gear seat, motor bearings and axle cen-ters, and that key seats are to be milled inwheel seats and gear seats. The gears, whichare of cast-steel in one piece, are to be forcedon before the wheel and provided with key. The specifications provide that the j
. The Street railway journal . pro-vided with key. Details of construction of wheels and axlesare clearly illustrated in the accompanying cuts. The diameterof the axle at center is 6y2 ins., at gear seat7 13-16 ins., and at wheel seat 7^4 ins. Pro-vision is made that axles are to be turned oncollars, journals, dust guard bearings, wheelseats, gear seat, motor bearings and axle cen-ters, and that key seats are to be milled inwheel seats and gear seats. The gears, whichare of cast-steel in one piece, are to be forcedon before the wheel and provided with key. The specifications provide that the journalbearings shall be of Damascus bronze. Theywill have %-in. freedom between collars andjournal, and are provided with M. C. B. slides,which are rounded on the top to insure thatthe brass does not tip. Provision is made infitting the boxes to the pedestals so that therewill be a perfectly free movement of the boxesin the pedestals. The wearing parts of thebrake rigging (levers, pins, etc.) are all case -3—4- ——j O .a. / / /O 1—c h ■ ) M i/Zo j1 / / V /X / -) © BRAKE RIGGING hardened, and so fitted that the brake partswill not rattle when brakes are applied. This truck was designed by George Gibbs,consulting engineer, and W. T. Thompson,master mechanic, of the Interborough RapidTransit Company. OBSERVATION CARS CN MONTREALSTREETS DETAILS OF WHEEL CONSTRUCTION Single-coil helical brake release springs are to be employed. The wheels and axles for the trucks are made by the Stand-ard Steel Works. The wheels are to be of cast-steel, 3334 diameter, steel tired and of M. C. B. standard tread, 25^ The Seeing Montreal service of obser-vation cars, which has been arranged for thepresent tourists season, has begun opera-tions. Some months ago A. W. Batchelder,general manager of the observation car ser-vices which operate in Boston, Washingtonand other American cities, came to Mon-treal and made a contract with the MontrealStreet Railway, by which the latter will furni
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
