RIGID SUSPENSION MOBILE CRANE Russian patent published in 1997 - IPC

Abstract RU 2082665 C1

FIELD: materials handling facilities; load lifting mechanisms; telescopic booms of mobile cranes and lifts for mounting and loading operations. SUBSTANCE: boom is made in form of coiled thermally treated thin-sheet rectangular section tape untwisting when being extended into telescopic conical spring with low rigidly coils. Longitudinal and cross stability of spring is increased owing to pressing of coils to each other by means of turning device installed on crane boom extending mechanism. EFFECT: enlarged operating capabilities. 3 cl, 4 dwg

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RU 2 082 665 C1

Authors

Karpenko Valentin Petrovich

Dates

1997-06-27—Published

1995-06-07—Filed