专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

3. 发明专利

GB473547A An improved press for use in the treatment of cellulose sheets with alkaline lye 未知
公开(公告)号：GB473547A
公开(公告)日：1937-10-11
申请号：GB1061236
申请日：1936-04-09
申请人： WEGELIN & HUEBNER MASCHINENFAB
IPC分类号： C08B1/12
摘要： 473,547. Presses for separating liquids from solids. WEGELIN & HUBNER, MASCHINENFABRIK UND EISENGIESSEREI AKT.-GES. April 9, 1936, No. 10612. Convention date, April 11, 1935. [Class 46] A press for use in the treatment of cellulose sheets with alkaline lye is arranged in a container, one end wall of which serves as counterplate or abutment during the pressing operation and is movable in the direction in which the pressure is applied to facilitate the removal of the sheets from the press. The plates 5, Fig. 1, of the press are arranged vertically over a perforated false bottom 4 of the container 3 and the cellulose sheets are placed between the plates when the latter are opened out. On completion of the steeping process, the lye is drained from the container and the plates pressed together against the end wall 8 by the movable head 7 operated by a plunger 9. Surplus lye drains away through the plates 5, each of which comprises two perforated sheets with an intermediate sheet of metal netting. The end wall 8 is clamped in the closed position by wedge-shaped prongs 19, Fig. 3, which engage fixed rods 20 and inclined surfaces on the wall. The prongs are moved into and out of the clamping position by a manually operated worm 24 which engages a toothed sector on a rotatable centre-piece 17 to which the arms 18 of the prongs are pivoted. When the wall 8 is unclamped, it moves outward under pressure from the plunger on rails 12 drawing with it rails 32, 33, Fig. 6, on which the press plates move. As they are drawn out the rails 32 take up an inclined position, so that the press plates separate as they leave the container and allow the cellulose sheets to fall to a conveyer 15. The supply and discharge of pressure fluid for operating the plunger 9, and also a piston (not shown) which retracts the head 7, is controlled by a valve device 96, Fig. 13, operated by a lever 60. The lever is moved manually from the neutral position 65 to operative positions 64, 66 to start a movement of the head 7, but each movement is stopped automatically by engagement of a lever carried by the head against collars on the operating rod 54 of a slide valve 67 governing the supply of pressure fluid to the cylinder 57 of a piston connected by a link 59 to the lever 60. The plates 5 are arranged in groups of six, separated by thicker plates 6. The plates 6 are connected together by a Gall's chain 87, Fig. 19, and the adjacent plates of each group are connected by loops 94. The wall 8 is moved inward from the position shown in Fig. 6 by rods carrying a stop with which the head 7 engages in its backward movement. The outward movement of the wall follows engagement of the head 7 with pawls on the rods, which pawls are brought into operative position on withdrawal of the prongs 19 from their clamping position.

IPRDB

热门服务

关于我们

友情链接

联系方式