GB462960A - Improvements in and relating to web guiding apparatus - Google Patents
Improvements in and relating to web guiding apparatusInfo
- Publication number
- GB462960A GB462960A GB2846436A GB2846436A GB462960A GB 462960 A GB462960 A GB 462960A GB 2846436 A GB2846436 A GB 2846436A GB 2846436 A GB2846436 A GB 2846436A GB 462960 A GB462960 A GB 462960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- valve
- port
- web
- roll
- Prior art date
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/0326—Controlling transverse register of web by moving the unwinding device
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
462,960. Fluid pressure servomotorcontrol systems. HARNDEN, Ltd., C. A., and HARNDEN, C. A. Oct. 20, 1936, No. 28464. [Class 135] Guiding means for a web 4 which is being taken from a roll 3 comprises a piston 12 which is actuated by fluid pressure supplied from pumps 19, 20 to move the spindle 5 carrying the roll in an axial direction to correct any misalignment. The supply of the pressure fluid to the piston 12 is controlled by a valve 17 which is in turn controlled by the degree of suction on a piston 30 in a pneumatic cylinder 31. To actuate the valve 17 a further valve 37 and a piston 38 are provided, a connection 41 being taken to a vacuum pump and a connection 43 to an adjustable box 45 with a port 44 controlled by the edge of the web 4. The piston 38 is provided with a small orifice 40 which provides communication between its two sides and balances the degree of suction when the port 44 is closed by the edge of the web as shown, the piston 38 being in its lowest position, the valve 37 closed, and the piston 30 also in its lowest position. Under these conditions pressure fluid is admitted to the cylinder 11 to move the piston 12 and the roll 3 to the right to uncover the port 44. When the port 44 is uncovered the piston 38 is lifted and the valve 37 opened and suction applied to the piston 30 which is lifted and which actuates the valve 17 to reverse the flow of pressure fluid to the piston 12 and move the roll 3 to the left to cover up the port 44 again. The edge of the web 4 is thus maintained between the sides of the port 44. A valve 16 is provided to byepass the ends of the cylinder 11 when the automatic guiding is not required, as in the initial threading up of the machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2846436A GB462960A (en) | 1936-10-20 | 1936-10-20 | Improvements in and relating to web guiding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2846436A GB462960A (en) | 1936-10-20 | 1936-10-20 | Improvements in and relating to web guiding apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB462960A true GB462960A (en) | 1937-03-18 |
Family
ID=10276036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2846436A Expired GB462960A (en) | 1936-10-20 | 1936-10-20 | Improvements in and relating to web guiding apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB462960A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974065C (en) * | 1951-12-17 | 1960-09-01 | Beloit Iron Works | Tension control device for tape-shaped goods unwound from a roll |
-
1936
- 1936-10-20 GB GB2846436A patent/GB462960A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974065C (en) * | 1951-12-17 | 1960-09-01 | Beloit Iron Works | Tension control device for tape-shaped goods unwound from a roll |
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