| 摘要 |
<p>1,208,857. Loading lighters on to ships; overhead cranes with spreaders. UNITED INDUSTRIAL SYNDICATE Inc. 11 April, 1969 [16 April, 1968], No. 18774/69. Headings B8B, B8H and B8Q. Lighters B, Fig. 1, are loaded into holds H of a ship by a travelling crane C. The lighters are guided into position at the rear of the ship by guides 10, Fig. 3, which are raised into a rearwardly extending position as the lighter approaches the ship and moved downwards to engage the lighter as it abuts the ship. A spreader I is lowered on to the ligher and projections 32, Fig. 12, are attached to the spreader by latches 97 which are moved into slots in the projections 32 by ram 98. The rams 98 operate when limit switches 95 are tripped by plungers 94 which are raised by the projections 32. Shock absorbers 99 soften the impact when the spreader is lowered on to the lighters. The projections 32 are on top of posts, 31, Fig. 8, which extend through the lighters and these are provided with recesses 33 on their bases which enable the lighters to be stacked. Guides 81, 82, 83 are provided on the legs of the crane and these slide up guide rails 80 when the lighters are raised. Power for the crane is supplied through a cable 66 which is wound on a drum 68. Hatch covers G, Fig. 1, are removed and stacked by the spreader and crane and have coupling devices similar to those on the lighters. Lighters may also be stacked on the hatch covers. In a modification, Fig. 14, guides 101, 102 replace the guides 10 and 82. These are moved into guiding position by rams 103 when lighters are being lifted. When hatch covers G are lifted, Fig. 16, guides 105 are moved into engagement with the retracted guides 101 by rams 106.</p> |
