| 摘要 |
1498242 Cable plough NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP SUMITOMO ELECTRIC INDUSTRIES Ltd and SUMIMOTO HEAVY INDUSTRIES Ltd 25 July 1975 [26 July 1974 (2)] 31297/75 Heading H2C Underwater cable laying apparatus comprises cable guide means 11 hinged at 10 to the rear of a plough 9 which is itself attached to means allowing vertical and angular movement with respect to a main body 1. To raise the plough hydraulic cylinder 15 pivots arms 12 about pins 13, the plough being kept vertical by cylinder 16 pivoting it around pin 14. The hinge means 10 between the guide and plough may comprise a torsion bar arrangement (Figs. 6, 7, 8, not shown). |
