GB1348524A - Press assembly - Google Patents

Abstract

1348524 Roller-band press BLACK CLAWSON CO 18 May 1971 [1 June 1970] 15656/71 Heading BID [Also in Divisions F2 and F4] A press assembly comprises a first press roll 13 having a grooved surface, a second press roll 12 forming with the roll 13 a press nip, an endless porous belt 14, e.g. a papermaking felt, and a saveall 20 mounted adjacent the ingoing side of the nip and including a bottom wall 21 having a lower edge disposed adjacent the nip and extending in closely spaced relationship to the belt, a baffle 24 diverging upwardly from said lower edge to form with the wall 21 a trough, and a cylindrical top wall 22 extending from the top edge of the wall 21 and terminating in an edge disposed above the latter and positioned adjacent the roll 13. Further troughs are formed between baffles 26 and 28 and the walls 21 and 22 respectively, and the troughs lead to a header and drainage conduit at one end of the saveall, Figs. 3 and 4 (not shown). The press assembly is used to dewater a paper web W which extends round a third roll 10 which may be a suction roll and forms with the roll 12 a second press nip, the paper being initially carried by a felt 11. The roll 12 may be a smooth surfaced granite roll.