Paper cleaning buff
OwnerWayne K. Kaiminventor
Life of this patent
Estimating the term…
Abstract
A paper cleaning apparatus employs a paper buffing roll which has a lightweight hollow cylindrical core mounted between stub shafts. The stub shafts are mounted to bearings and the hollow core is arranged to be driven at approximately 3,450 to approximately 4,450 RPM. The surface of the cylindrical core is given a rough surface over which a wool cloth jacket is placed. The cloth sleeve is clamped in place by retaining end caps which fit over the stub shafts and clamp the sleeve against the ends of the hollow cylindrical core. The cloth sleeve is shrunk onto the surface of the cylindrical core with hot water or steam. The cloth sleeve is frayed to form a soft outer surface, with radially extending fibers.
Claims12
A paper web cleaning apparatus of the type comprising a first paper buffing roll and a second paper buffing roll in closely spaced parallel relation to the first paper buffing roll, the first paper buffing roll and the second paper buffing roll mounted to rotate towards each other, each buffing roll associated with a hood connected to a vacuum system, and a paper web passes between the first paper buffing roll and the second paper buffing roll so as to be equally spaced from the first paper buffing roll and the second paper buffing roll, wherein the improvement comprises:
- the first paper buffing roll comprising a hollow core having a cylindrical surface and mounted for rotation between stub shafts, a material jacket positioned about the hollow core and clamped between opposed end caps to the ends of the hollow core, the jacket material being affixed to the hollow core surface and having a soft outwardly facing surface with a profusion of radially protruding fibers developed thereon.
A paper web cleaning apparatus of the type comprising a paper buffing roll in closely spaced parallel relation to a paper web, the paper buffing roll mounted for rotation and enclosed within a hood connected to a vacuum system wherein the improvement comprises:
- the paper buffing roll comprising a hollow core, having a core surface, the hollow core mounted for rotation between stub shafts, a jacket positioned about the hollow core and the jacket material being held but not bonded to the core surface and having a soft outwardly facing surface having a profusion of radially outwardly projecting fibers developed thereon.
A method of cleaning a paper web comprising the steps of:
- fabricating a core from a thin-walled cylinder approximately 20 to approximately 60 inches long between bearing supports, and at least about 3½ inches in diameter;
- balancing the core about an axis defined by the bearing supports;
- placing a woven wool jacket about the core;
- shrinking the wool jacket until it tightly engages the core;
- developing a soft surface having a profusion of radially extending fibers on the wool jacket;
- placing the core within a vacuum hood, drawing a vacuum on the hood and driving the core to rotate;
- placing the soft radially extending fiber surface on the wool jacket in close touching engagement to a surface of a paper web, which is moving in a direction opposed to the surface velocity of the roll, at a velocity in excess of 16 fps, to wear the surface into tangential engagement with the paper surface;
- continuing to operate the core within the vacuum hood, while drawing a vacuum on the hood and driving the core to rotate so as to produce an effective surface velocity to clean the paper web, moving in excess of 16 fps.
A method of cleaning a surface of a paper web wherein the paper web is moving in a first direction at the velocity of at least 16 feet per second, the method comprising the steps of:
- fabricating a core from a hollow cylinder at least 20 inches long between bearing supports, and at least about 3½ inches in diameter;
- balancing the core about an axis defined by the bearing supports;
- placing a jacket about the core;
- shrinking the jacket until it tightly engages the core;
- developing a soft surface having a profusion of radially extending fibers on the jacket;
- placing the core within a vacuum hood, drawing a vacuum on the hood and driving the core to rotate with a surface velocity of between about 60 and about 80 feet per second in a direction opposite the first direction;
- placing the soft radially extending fiber surface on the jacket in close tangential engagement to the surface of the paper web to interact with a boundary layer carried along with the paper web to remove particles from the surface of the paper web.
Dependencies are inferred from the claim text.