21. "' Semi-rigid barriers "'include box beam guide rail, heavy post blocked out corrugated guide rail and thrie-beam guide rail. 22. "' Semi-rigid barriers "'include box beam guide rail, heavy post blocked out corrugated guide rail and thrie-beam guide rail . 23. Guide rails that support the bolt assembly and piston extension during their reciprocating movement are riveted to the side plates.24. The tire is guided on each side by guide rails and some portion of the tire always maintains rail contact. 25. Despite the guiding rail the system uses parallel overhead lines, which were already in place from the old trolleybus system. 26. Two incompatible systems using physical guide rails exist, the batteries, or internal combustion engines where there are no overhead wires. 27. But that has brought little cheer at Sakawa Seisakujo, a 60-person company in Tokyo that makes guide rails for elevators. 28. This embodied lateral guide rails , but was basically a pannier design hauled by a locomotive having double vertical steam boilers. 29. Guide rails were fixed to keep the pram on its correct path at the top before plunging freely down the stairs.30. The seat was propelled up the guide rails by a gun, consisting of two telescopic tubes energised by an explosive cartridge.
