ses and wedges were in the proper place. Jacking Up Cars for Repairs—After raising a caron jacks the only safe practice is to set a trestle underihe car and lower it until a proportion of the carsweight rests on the trestle. Then if the jack fails to 57 THE CARMANS HELPER sustain the weight imposed… … Trestles for Supporting Cars steel wheel, the forged or rolled steel wheel, and thesteel-tired wheel. The last mentioned is gradually be-coming a thing of the past. The chilled iron wheel wasthe first used, and is still used more than any otheron account of its low first cost. Wheel Failures—Wheel…
Railroad cars · Railroads
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