| 摘要 |
864,539. Filters. DAWSON BROS. Ltd. Aug. 14, 1958 [Dec. 7, 1957], No. 38121/57. Class 46. [Also in Group XXIII] A perforated cylinder 9 on which is disposed a woven bag or sleeve 14 is slid along rollers 16 mounted in an external cylinder 1 until the end of the bag or sleeve is gripped between a tapered face 11 within the external cylinder and a ring 12 on the cylinder 9. The cylinder 9 is finally secured by a spring 13, hinged cover 4 and screwed spindle 7. Washing pump (not shown), or cleaning liquid is introduced at 2 by a pump (not shown), and discharged at 3 to jets (not shown). |
