| 摘要 |
1432211 Railway systems SOC ANON DE RECHERCHE ET D'ETUDES TECHNIQUES 24 Aug 1973 [1 Sept 1972] 40188/73 Heading B7L [Also in Divisions B4-B5 F2 and E1-E2] A carriage 157 is mounted on wheels 136, 137 free-running on rails R. The wheel axles 151 are eccentric, and are mounted at their ends 152, 153 for rotation by a toothed disc 154, to vary the height of the carriage 157 above the rails R. A blocking member 158 fixes the disc position. The carriage supports a mould for prestressed concrete members (see Divisions B4-B5). |
