London transport has introduced device which, attached to crane hook, enables 300-ft lengths of welded rail to be installed rapidly and easily by small labor force; laying speeds of up to 2 mi/hr can be achieved; device consists of two 2 1/2-in. diam rollers, each 9 in. long, mounted between side plates; rollers rotate in roller races housed in side plates.
Thimble device for laying long-welded rails
Ry Gaz
Railway Gazette ; 110 , n 23
1959
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1936
|Engineering Index Backfile | 1936
|Engineering Index Backfile | 1939
|Engineering Index Backfile | 1937
Engineering Index Backfile | 1936
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