Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1803/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beloit Iron Works Inc
Original Assignee
Beloit Iron Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beloit Iron Works IncfiledCriticalBeloit Iron Works Inc
Publication of GB812219ApublicationCriticalpatent/GB812219A/en
D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F3/00—Press section of machines for making continuous webs of paper
D21F3/02—Wet presses
D21F3/10—Suction rolls, e.g. couch rolls
Landscapes
Paper
(AREA)
Abstract
812,219. Silencing suction rolls of papermaking machines. BELOIT IRON WORKS. Jan. 17, 1957 [Jan. 24, 1956], No. 1803/57. Class 96. In a paper-making machine, a high-speed &c. suction roll is silenced by making the offrunning sealing strip 67 of the suction box 66 of the suction roll 50 broad, e.g. 3¢ ins., and arranging that the felt F with the web W thereon leaves the roll 50 at a line which is radially over the strip 67, so that the vacuum in the holes 51 &c. of the roll shell is let down slowly. The sealing strip 67 may be supported pneumatically at 69 and 70 to compensate for any uneven wear, and may be pneumatically sealed at 71, 72. The strip 67 may be of hard resin, wood, laminated packing, &c. The oncoming sealing strip 63 may be of normal width, e.g. ¥ to 1 in. and may be spring-pressed at 65.
GB1803/57A1956-01-241957-01-17Improvements in or relating to paper making machines
ExpiredGB812219A
(en)