EP 0023681 B1 19841003 - MOULDED BLOCK FOR CONSTRUCTING A SHAFT LINING AND SHAFT LINING CONSISTING OF THESE MOULDED BLOCKS AND A METHOD OF CONSTRUCTING THIS SHAFT LINING
Title (en)
MOULDED BLOCK FOR CONSTRUCTING A SHAFT LINING AND SHAFT LINING CONSISTING OF THESE MOULDED BLOCKS AND A METHOD OF CONSTRUCTING THIS SHAFT LINING
Publication
Application
Priority
DE 2930900 A 19790730
Abstract (en)
[origin: EP0023681A1] 1. An element for a pit structure bounded by two sides (3, 4) arranged like two lines running parallel if viewed from the top and a roof (1) and a floor (2) arranged like two lines running parallel and separated by a distance equal to the height of said element if viewed from the side and mirror-inverted dovetailed juts (5) and recesses (6) at the two faces of said element, said juts and recesses consisting of parts forming right, obtuse or acute angles (alpha) between each other characterized in that said roof (1) and said floor (2) arranged like two parallel lines separated by a distance equal to the height of said element if viewed from the side rise from the outside to the inside forming an acute angle (beta) and in that the two face parts (7**1 , 7**2 ) join or are separated by curved (8) or straight (9) intermediate parts and in that the extreme legs of said two face parts (7**1 , 7**2 ) form an acute angle (gamma) or are connected to the adjacent floor (2) or roof (1) by means of said curved or straight parts (8, 9).
IPC 1-7
IPC 8 full level
E21D 5/04 (2006.01)
CPC (source: EP)
E21D 5/04 (2013.01)
Designated contracting state (EPC)
AT BE CH FR GB IT LI SE
DOCDB simple family (publication)
EP 0023681 A1 19810211; EP 0023681 B1 19841003; AT E9729 T1 19841015; DE 2930900 A1 19810226; DE 2930900 C2 19860507; PL 225982 A1 19810424
DOCDB simple family (application)
EP 80104390 A 19800725; AT 80104390 T 19800725; DE 2930900 A 19790730; PL 22598280 A 19800730