| 摘要 |
1527016 Earth-moving; bowl type scrapers CATERPILLAR TRACTOR CO 22 June 1976 [31 Oct 1975] 25891/76 Heading E1F A control system for the hydraulically powered loading auger of an earth-moving bowl type scraper that has an ejector operated by a hydraulically powered piston cylinder unit. One manual valve 25 starts and stops the auger in conjunction with loading. A second manual control valve 53 powers the piston cylinder unit and simultaneously operates a valve 58 to start the auger independently of the first manual control valve. U.K. Specification 1527015 and U.S. Specifications 3618984, 3863367 and 3311389 are referred to. |
