Tension regulation apparatus

Claim 2

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprIsing an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly including a rotating cylinder, means for constraining the path of said web so that said web engages said rotating cylinder over substantially 180* of its circumference, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said one engagement line produces substantially no acceleration parallel to said web of said assembly at the other of said engagement lines, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 3

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly including a rotating cylinder engaging said web between said two engagement lines over substantially 180* of its circumference, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that conjugate centers of percussion of said assembly are substantially along said engagement lines whereby a change in force applied to said assembly at said one engagement line produces substantially no acceleration parallel to said web of said assembly at the other of said engagement lines, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 4

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly including a rotating cylinder engaging said web between said two engagement lines over substantially 180* of its circumference, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that conjugate centers of percussion of said assembly are substantially along said engagement lines whereby a change in force applied to said assembly at said one engagement line produces substantially no acceleration parallel to said web of said assembly at the other of said engagement lines, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 5

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web, along two engagement lines extending across said web, said assembly including a rotating cylinder and at least one mass member on each end of said cylinder said mass members having substantially equal masses positioned at least in part outside of the radius at which the cylinder contacts the web, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 6

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web, along two engagement lines extending across said web, said assembly including a rotating cylinder and at least one mass member on each end of said cylinder said mass members having substantially equal masses positioned at least in part outside of the radius at which the cylinder contacts the web, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 7

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly includinG a rotating cylinder and a rotating mass operatively connected to said cylinder through a gear system at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 8

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly includinG a rotating cylinder and a rotating mass operatively connected to said cylinder through a gear system at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 9

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly including a translationally movable carriage and a plurality of rotating circular cylinders mounted on said carriage and successively engaging said web, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 10

Apparatus for preventing a change in the tension in one region of a moving web from causing a change in the tension in another region of said web comprising an assembly in non-slipping engagement with said web between said two regions of said web along two engagement lines extending across said web, said assembly including a translationally movable carriage and a plurality of rotating circular cylinders mounted on said carriage and successively engaging said web, at least a part of said assembly being mounted so as to be movable translationally by force applied to said assembly at one of said engagement lines, at least a part of said assembly being mounted so as to be movable rotationally by a force applied to said assembly at said one engagement line, the masses and the distribution thereof of said assembly being such that a change in force applied to said assembly at said engagement line produces substantially no acceleration parallel to said web of said assembly at said other engagement line, so that a change in web tension in one of said regions which produces a change in force on said assembly at one engagement line does not cause a change in web tension at the other of said engagement lines.

Claim 11

Apparatus in accordance with claim 5 wherein said assembly includes at least one mass member operatively connected to said carriage so that the energy of the added mass depends more on the translational motion of the cylinders than upon their rotational motion.

Claim 12

Apparatus in accordance with claim 5 wherein said mass member is rigidly attached to said carriage.

Claim 13

Apparatus in accordance with claim 5 including a fixed wheel, two mass members attached to the ends of a cable, said cable engaging said wheel and being attached to said carriage.

Claim 14

Apparatus in accordance with claim 5 including at least one flywheel mounted on a wheel and a cable engaging said wheel and attached to said carriage.