Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 790
We have said that the top of tl e turn-table is covered with timber, on which the rails forming therailway is laid; in many cases the top is formed of cast-iron, the rails being raised a little above thesurface of the cast-iron plate. … A very much improved form of table is that of Mr. Aldrich, of Worcester, Mass., which is extensneiyused in New England, sometimes as large as 48 feet in diameter. A plan and section is shown in Figs.S6S3 and 3684. It will be seen that in this table the wheels are fi.xed to a framing independently…
Mechanical engineering · Mechanics · Engineering
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