EP 0383456 A2 19900822 - Improvements relating to arch setting.
Title (en)
Improvements relating to arch setting.
Title (de)
Setzen von Bogenausbau.
Title (fr)
Placement de cintre.
Publication
Application
Priority
GB 8903543 A 19890216
Abstract (en)
A three sectioned arch is set in an underground passage by mounting an arch crown section (9) in a fixture (23) and positioning the fixture on a platform (20) of a monorail transport device (16). The platform (20) is raised and lowered through a linkage mechanism (21) to position the crown section while it is fixed in position.
IPC 1-7
IPC 8 full level
E21D 11/40 (2006.01)
CPC (source: EP)
E21D 11/40 (2013.01)
Designated contracting state (EPC)
BE DE FR
DOCDB simple family (publication)
EP 0383456 A2 19900822; EP 0383456 A3 19910828; AU 4974190 A 19900823; GB 2228280 A 19900822; GB 8903543 D0 19890405; ZA 90592 B 19901031
DOCDB simple family (application)
EP 90301001 A 19900131; AU 4974190 A 19900213; GB 8903543 A 19890216; ZA 90592 A 19900126