Tensioning apparatus for a web threading endless rope

Details Tensioning apparatus for a web threading endless rope Tensioning apparatus for a web threading endless rope

B - Operations, Transporting

65

H

B65H 59/22 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2081524

A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes an elongated H-beam having a flange engaged by guide wheels supporting a pair of separate carriages. The carriages support corresponding rope sheaves for free rotation, and a pair of fluid cylinders are mounted on opposite sides of the beam web and have piston rods connected directly to the corresponding carriages by laterally floating links. Proximity sensors are mounted on opposite end portions of the H-beam for indicating when the rope stretch is reaching a limit, and the beam supports a full length cover which encloses and protects the carriages and cylinders.

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