Canadian foundryman (1917) . plate wheel, the front and hackplates extending from the huh to therim, whieb subsequently evolved into thepresent pattern. In the year 1850, a man arose to thesituation and developed an idea. I he im- JaugerouB to use. Anyone by the useof the Seleroscope or Brinell methodscan determine the relative hardness ofi he chilled iron wheel tread, as compar-ed with other types. The Standard 72) lbs. wheel ispoured in about twelve seconds; Thebalance of the mould consists of greensand and dry sand cores, all so scientifi-cally arranged that the finished wheelpossess
Canadian foundryman (1917) . plate wheel, the front and hackplates extending from the huh to therim, whieb subsequently evolved into thepresent pattern. In the year 1850, a man arose to thesituation and developed an idea. I he im- JaugerouB to use. Anyone by the useof the Seleroscope or Brinell methodscan determine the relative hardness ofi he chilled iron wheel tread, as compar-ed with other types. The Standard 72) lbs. wheel ispoured in about twelve seconds; Thebalance of the mould consists of greensand and dry sand cores, all so scientifi-cally arranged that the finished wheelpossesses a gradual bardness of struc- eouotered which must be relieved beforethe wheels are placed in service. Dur-ing tlie earlier periods of manufacture,after the wheel was set, it was coveredwith ashes or hot sand and allowed toremain several days until nearly method was to lay the wheelon the floor and apply heat to the that the temperature of the treadwould he brought hack to that of and Fit}. ??>? STANDARD 625 LBS., 33-INCH WHEEL FOR CARS <»K MAXIMUM GROSS WEIGHT, AND NOT EXCEEDING 05,000 LBS.
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Keywords: ., boo, bookcentury1900, bookdecade1910, bookidcanfoundryman1917toro
