(19)
(11) EP 0 383 456 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.08.1991 Bulletin 1991/35

(43) Date of publication A2:
22.08.1990 Bulletin 1990/34

(21) Application number: 90301001.5

(22) Date of filing: 31.01.1990
(51) International Patent Classification (IPC)5: E21D 11/40
(84) Designated Contracting States:
BE DE FR

(30) Priority: 16.02.1989 GB 8903543

(71) Applicant: Coal Industry (Patents) Limited
London SW1X 7AE (GB)

(72) Inventor:
  • Wootton, Richard James
    Burton-on-Trent, Staffordshire DB15 0QP (GB)

(74) Representative: Butler, Lance 
Butler & Company PO Box 117 73 The Glade Fetcham
Leatherhead, Surrey KT22 9LQ
Leatherhead, Surrey KT22 9LQ (GB)


(56) References cited: : 
   
       


    (54) Improvements relating to arch setting


    (57) 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.







    Search report