| 释义 |
ˈtram-plate
[f. tram n.2 + plate n.]
One of the flat or flanged iron plates used in forming early tramways (in mines or above ground), instead of the wooden or stone ‘trams’ previously used.
1807Trans. Soc. Arts XXV. 87 Improved tram-plates for carriages on rail roads. 1824T. G. Cumming Rail & Tram Roads 18 We find the flat rail, or tram plate, almost entirely superseded by the edge rail. 1829Mechanics' Mag. XII. 132 The sort of rail employed is that called the edge-rail, in contradistinction to the flat rail or tram-plate. 1838Osborne's Guide to the Grand Junction Railway 7 In the year 1776 Mr. Carr introduced the use of tram-plates in the Duke of Norfolk's colliery at Sheffield. These plates had an upright ledge or flange, from 2½ to 4 inches high, which served to keep the wheels of the trams or waggons on the line. 1851Greenwell Coal-trade Terms Northumb. & Durh. 16 The tram-plates, or other iron or metal way. 1894[see plate n. 8]. |