| 摘要 |
1,209,896. Endless conveyers; feeding webs. HOVERCRAFT DEVELOPMENT Ltd. 6 Nov., 1967 [24 Nov., 1966], No. 52749/66 Headings B8A and B8R. An endless belt conveyer 2 is supported on an air cushion generated within a chamber 5 formed by a base member 4 and a flexible peripheral wall 9 inclined inwardly of said base. The conveyer 2 closing the chamber. The wall 9 comprises a plurality of U-sectioned elements, whose limbs 11 are directed inwardly of the chamber. The limbs of adjacent sections may be joined to limit the outward deflection of the wall and a retaining strip (30), Fig. 7 (not shown), may be fixed above the belt to prevent undue vertical movement thereof. The chambers may be used in opposing pairs Fig. 5 (not shown), to guide a conveyer belt therebetween or alternatively may be used to support metal strip Fig. 1 (not shown), on its exit from a roller mill (3). |
