Decurler apparatus

Apparatus for removing curl in a continuous moving web, comprising:

• a rotatable carriage,
• a pair of closely spaced elongate engagement bars,
• means attaching the engagement bars to the rotatable carriage for an angular movement with rotative movement of the carriage, the closely spaced elongate engagement bars forming a slot of given width and length dimensions through which the web travels, the engagement bars being angularly movable in one direction with rotative movement of the carriage so that as the web travels through the slot the web is engageable with a portion of one of the elongate bars to remove curl which exists in one direction in the web, the engagement bars being angularly movable in the opposite direction with rotative movement of the carriage so that the web is engageable with a portion of the other elongate bar to remove curl which exists in the opposite direction in the web, a pair of spaced-apart web contact members attached to the carriage and movable therewith, the web extending between the web contact members and then to the engagement bars, as the contact members direct the web to the engagement bars, the contact members being positioned to limit the area of engagement of the web with the engagement bars.

Apparatus for removing curl in a continuous moving web comprising:

• a carriage member angularly movable about a given axis, an elongate engagement member attached to the carriage member for angular movement with angular movement of the carriage member, the elongate engagement member having two closely spaced portions forming an elongate slot therebetween of given width and length dimensions through which the web travels, the elongate slot having closely spaced opposed engagement walls, roller means having spaced-apart portions rotatively supported by the carriage member adjacent the engagement member and movable with angular movement of the carriage member, the carriage member being angularly movable in a counter-clockwise direction to angularly move the engagement member in a counter-clockwise direction for engagement of the web with a portion of the roller means and with a portion of the engagement member to remove curl which exists in a given direction in the web, the carriage member being rotatively movable in a clockwise direction to pivotally move the engagement member in a clockwise direction for engagement of the web with another portion of the roller means and with another portion of the engagement member to remove curl from the web which exists in a direction opposite from the given direction.

Apparatus for removing curl in a continuous moving web comprising:

• a carriage member rotatable upon a given axis, an elongate engagement member attached to the carriage member for pivotal movement with rotative movement of the carriage member, the elongate engagement member having two closely spaced portions forming an elongate slot therebetween through which the web travels, the carriage member being rotatively movable in a counter-clockwise direction to pivotally move the engagement member in a counter-clockwise direction for engagement of the engagement member with one surface of the web to remove curl which exists in a given direction in the web, the carriage member being rotatively movable in a clockwise direction to pivotally move the engagement member in a clockwise direction for engagement with the opposite surface of the web to remove curl from the web which exists in direction opposite from the given direction.