A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Boston and Maine repairs trolley supports in Hoosac Tunnel
After 21 years of service, corrosion necessitates application of new tape and asphalt cement on bracket bars; relatively few roof bolts need replacement; special work train provided.
Boston and Maine repairs trolley supports in Hoosac Tunnel
After 21 years of service, corrosion necessitates application of new tape and asphalt cement on bracket bars; relatively few roof bolts need replacement; special work train provided.
Boston and Maine repairs trolley supports in Hoosac Tunnel
Ry Elec Engr
Winship, L.C. (author)
1932
Article (Journal)
English
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