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American patents
1848
Journal of the Franklin Institute
89 The Eastern Counties' steam carriage weighs 22 ewt., and carries 7 passengers, weight 10~ cwt. ; about 2 ewt. of dead load to I ewt. of available load. This is about equivalent to the old stage-coach, in proportion of materials, at quadrupled speed. But if, at a future time, 3 tons of dead load will carry 4~ tons of available load, that will be the proportion of I ewt. of dead load to 1~ cwt. of available load. It is not possible that principles of so great importance should be suffered to
doi:10.1016/0016-0032(48)90817-5
fatcat:jzwukbjdxnavpptxgbv7qdfv5q