| 摘要 |
1,115,684. Step - by - step conveyers. NORDSTROMS LINBANOR A.B. 2 Feb., 1967 [15 Feb., 1966], No. 5191/67. Heading B8A. A conveyer comprises three transportable units, a driving unit 1, an intermediate unit 2 and an extension unit 3, each with a stationary supporting frame 7 and a shuttle 8 with wheel units 9 having two pairs of wheels, an inner pair 10 and an outer pair 11. The frames 7, shuttles 8 and wheel units 9 are respectively releasably connected together by couplings 14, 15, 16. The shuttle 8 is raised by an hydraulic actuator (18), Fig. 2 (not shown), the wheels 11 running on cam means 12. The working stroke is made by an hydraulic actuator (17), Fig. 2 (not shown), the shuttle 8 running on the wheels 10 and being lowered for the return stroke. |
