| 摘要 |
1,195,664. Finishing. J. F. RAMPE. 30 Jan., 1969, [15 Feb., 1968], No. 5227/69. Heading B3D. A clamping system for attaching a replaceable lining material to an open-top finishing tub in such manner as to provide a maximum of surface contact between the lining material and the interior of the tub comprises, (i) a plurality of flanges flanking the tub opening; (ii) a plurality of clamping pieces in juxtaposition thereto; (iii) downwardly directed portions on the clamping pieces for engagement with the lining material; and (iv) means for urging said clamping pieces toward said flanges to exert a downward pressure on the lining material through the intervention of said downwardly directed portions. The tub 4 of an orbital finishing machine has horizontal flanges 9 flanking the open top. A liner comprising a metal backing 12, advantageously of a ferrous metal alloy, to which is adhered a thick layer 13 of rubber or a rubberlike elastomer is clamped in the tub by clamping pieces 10 secured to the flanges by nuts 26, bolts 27 and washers 28. Each piece 10 has a locating lip 31 bearing against a depending lip 30 on the flange 9 and a force-exerting lip 32 bearing against the elastomeric layer 13 to push the liner down into close contact with the tub. Alternative arrangements of flanges and clamping pieces for tubs of different shapes are shown in Figs. 4, 7 and 8. |
