Support leg for bridges

US3964119A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Friedhelm Soffge
• Gerhard Albrecht · Prien am Chiemsee, DE

Key dates

• Filing date: May 12, 1975
• Grant date: Jun 22, 1976
• Expiry date: May 12, 1995

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01D19/005
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Support leg construction for tank portable bridges including a housing or support leg formed by respective inner and outer sleeve members. A longitudinally movable stanchion is guided intermediate the inner and outer sleeves. A hydraulically operable piston member is disposed in the inner sleeve and includes hydraulically operable detent spring ring locking means for selectively locking the piston to the stanchion. A further hydraulically operable spring-ring locking mechanism is fixedly disposed at the open end of the inner sleeve for selectively locking the stanchion in position with respect to the inner and outer sleeves.