New tractor combines advantages of locomotive as means of power and of wire ropes as means of traction; eight types are made, four for use in level seams; wire rope passes over series of drums; tractor may be anchored at branch roads and gear performs function of winch, hauling empties to working face and loads to gathering place; for use as locomotive, corresponding drums are locked by control lever, which has forward, neutral and reverse position.
The Briden assembler haulage tractor -- A Rope-driven locomotive
Colliery Guardian
Colliery Guardian ; 138 , n 3554
1929
2 pages
4 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1951
|Underground locomotive haulage
Tema Archive | 1991
Engineering Index Backfile | 1945
|Underground locomotive haulage
Tema Archive | 1991
|Underground locomotive haulage
Engineering Index Backfile | 1930
|