Track alignment for "Portal" cranes; term Portal relates to cranes which allow automotive and rail traffic to pass beneath body and between legs of crane; largest of these cranes weighs 700 tons, can lift 75 tons and travel on track gage up to 40 ft; prior to 1900 these cranes traveled on straight tracks only; use of curved trackage.
Geometric problem in traveling crane track alignment
Am Soc Civ Engrs -- Proc Separate
1954
9 pages
Article (Journal)
English
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Traveling system of off-road tire-track integrated crane
European Patent Office | 2023
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