CONVEYING DEVICE FOR PRODUCTION OF RAIL BASES Russian patent published in 1994 - IPC

FIELD: production of ferroconcrete rail bases. SUBSTANCE: device has cavity formers, whose lifting rollers are provided with rail guides for guiding portal. Portal is equipped with movable spring-loaded cavity former operating position retaining member, which are secured on portal guides. Portal is transferred from laying and precompaction station to final compaction station through transfer path mounted between the stations. Movable spring-loaded members for retaining cavity formers in their operating position on portal may be equipped with magnets and portal may be provided with trunk. Concrete spreader may be provided with electromagnetic locking member. EFFECT: reliability fastening of detachable cavity formers in mold and enhanced reliability in operation. 3 cl, 12 dwg