Element for tunnel-type metal shuttering

Details Element for tunnel-type metal shuttering Element for tunnel-type metal shuttering

1983-01-03

1984-04-10

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Lining

405288, 405290, 249 10, E21D 1904, B28B 702

Patent

active

044418388

ABSTRACT:
There is described an element from tunnel-type metal shuttering, particularly retractable element and means associated with each panel adjacent the bottom thereof and controlled by the rigid structure as it is moved between both end positions thereof, to adjust the panel bottom position and the rolling means position relative to the ground, while insuring automatic levelling of the element in the shuttering position thereof, and means to join each panel from an element to the directly adjacent parallel panel from an element lying side by side when said elements lie in shuttering position.

REFERENCES:
patent: 1082700 (1913-12-01), McArthur
patent: 2590683 (1952-03-01), Clapp
patent: 3115754 (1963-12-01), Joseph
patent: 3298155 (1967-01-01), Byfield et al.
patent: 3601996 (1971-08-01), Levy
patent: 3812680 (1974-05-01), Walbrohl
patent: 3979919 (1976-09-01), Blonde et al.
patent: 4143991 (1979-03-01), Stafford
patent: 4173421 (1979-11-01), Harhoff et al.
patent: 4261542 (1981-04-01), Lefebyre

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