| 摘要 |
1,168,569. Loading lighters into ships; taking up slack. J. L. GOLDMAN. 30 March, 1967 [4 April, 1966], No. 14557/67. Headings B8B and B84. Lighters 33, Fig. 1, are loaded into a ship 20 by a travelling gantry crane 29 from which is supported a lifting frame 71. The latter has corner members 52, Fig. 5, into which fit projections 58 on the lighters. The sockets are lined with resilient material 56 and when the projections 58 are correctly centred pins 61 are pushed through holes therein to lock the lighter to the frame 71. Lifting cables 69, 70 pass round upper sheaves on the crane which are normally held in the upper position shown in dotted lines by counterweights 78. These upper sheaves are free to slide vertically to prevent slack developing in the lifting cables when the lighter moves up and down due to the swell. |
