Discussion of specially designed collapsible bulkheads which provide means of placing three long 68-in. by 74-in. lines under water successfully on Boston and Maine; closing river channel necessitated pipe drains; floating pipe into place found most feasible; ingenious method used to hold bulkheads in pipe; little difficulty in launching and setting pipe; bulkheads removed with unusual simplicity.
Floating concrete pipes into place
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 25 , n 12
1929
4 pages
6 Figs.
Article (Journal)
English
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FLOATING CONCRETE UNIT BLOCK AND FLOATING CONCRETE STRUCTURE CONTAINING THIS
European Patent Office | 2022
|Engineering Index Backfile | 1946
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