Two-section principle has been extended to knife-edge track scales for both light and heavy railroad service; specifications divide scales into two capacities; preclude use of high-carbon steel for pivots and bearings; American Railway Engineering Association permits use of both 4 and 2-section track scales for general railroad service.
Two section railroad track scales, knife edge type
Scale Jl
Scale Journal ; 14 , n 6
1928
2 pages
Article (Journal)
English
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Specifications for the manufacture and installation of two-section, knife-edge railroad track scales
Engineering Index Backfile | 1927
Specifications for the manufacture and installation of two-section, knife-edge railroad track scales
Engineering Index Backfile | 1927
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