EP 0013368 B1 19830309 - DEVICE FOR REGULATING THE TENSION IN A WEB
Title (en)
DEVICE FOR REGULATING THE TENSION IN A WEB
Publication
Application
Priority
- DE 2855591 A 19781222
- DE 2855592 A 19781222
Abstract (en)
[origin: US4288045A] The invention describes a device for controlling the tension of a web discharged from a delivery spool including a compensating roller around which the web is guided to which a tiltingly supported lever is connected the deflection of which influences a pneumatic valve, which provides, in a compressed-air line system including a reduction valve, for the pneumatic pressure of a brake cylinder of a pneumatic brake of a machine processing the web, wherein the lever 4 is engaged by a tension spring with adjustable stroke and the lever is tiltable between two end switches 10, 11, which actuate valves including series-connected reduction valves 14, 15 inserted into one pneumatic line 12, 13 each, both being connected to a compressed-air tank 19 which actuates the brake cylinder 22, the valve actuated in case of a decrease of the tension of the web 1 being inserted into the line under pressure 12 and when actuated by the lever 4 connecting the compressed-air tank 19 to the compressed-air source 15a, and the valve actuated in case of an increase of the tension of the web 1 being inserted into a line 13 leading to the atmosphere and when actuated connecting the compressed-air tank 19 to the atmosphere.
IPC 1-7
IPC 8 full level
B65H 23/188 (2006.01)
CPC (source: EP US)
B65H 23/1888 (2013.01 - EP US); B65H 2301/3112 (2013.01 - EP US); B65H 2511/112 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0013368 A1 19800723; EP 0013368 B1 19830309; DE 2965013 D1 19830414; US 4288045 A 19810908
DOCDB simple family (application)
EP 79105121 A 19791213; DE 2965013 T 19791213; US 10573679 A 19791220