Log saw apparatus and method
AssigneeC.G. Bretting Manufacturing Co., Inc.
InventorTad T. Butterworth
Life of this patent
Estimating the term…
Abstract
Some preferred embodiments of the present invention includes an apparatus and method employed for cutting a rotating log of rolled product into rolls, the apparatus and method utilized for preventing collapse of a longitudinally extending aperture in the log during the cutting process. The present invention includes a mandrel received within the aperture of the log to at least partially support the log and to preferably maintain the integrity of the aperture while the log is being cut by a saw blade. Preferably, the mandrel has at least one recess within which a saw blade can be received during cutting operations upon the log.
Claims40
A saw assembly for cutting a rotating log into rolls, the saw assembly comprising:
- a mandrel positionable to at least partially support the rotating log, the mandrel including
- a longitudinal axis,
- a first portion including a radially outermost surface defining a first radial distance from the longitudinal axis, and
- a second portion including a radially outermost surface defining a second radial distance from the longitudinal axis;
- and
- a saw blade movable toward the longitudinal axis to a cutting position between the first portion and the second portion, the cutting position defining a third radial distance between the saw blade and the longitudinal axis, the third radial distance being shorter than each of the first and second radial distances.
A method for cutting a rotating log into rolls, the method comprising:
- providing a mandrel including a longitudinal axis, a first portion including a radially outermost surface defining a first radial distance from the longitudinal axis, and a second portion including a radially outermost surface defining a second radial distance from the longitudinal axis;
- at least partially supporting the log with the mandrel;
- rotating the log;
- and
- moving the saw blade toward the longitudinal axis to a cutting position between the first portion and the second portion, the cutting position defining a third radial distance between the saw blade and the longitudinal axis, the third radial distance being shorter than each of the first and second radial distances.
A saw assembly for cutting a rotating log into rolls, the log and the rolls each having a centrally located, longitudinally extending aperture, the saw assembly comprising:
- a movable saw blade;
- a mandrel adapted to be received within the aperture of the log, the mandrel including a recess, the saw blade movable from a first position in which the saw blade is located outside of the recess in the mandrel to a second position in which the saw blade is located within the recess.
A method for cutting a rotating log into rolls, the method comprising:
- receiving a mandrel within a centrally located, longitudinally extending aperture in the log;
- rotating the log;
- and
- moving a saw into and within a recess of the mandrel to cut a roll from the rotating log.
A log saw mandrel for use with a log saw having a log saw blade, the log saw mandrel comprising:
- an elongated body having
- a first end,
- a second end opposite the first end, and
- an outer surface extending between the first and second ends;
- and
- a recess defined in the elongated body between the first and second ends of the elongated body, the recess extending partially through the elongated body and shaped to receive at least part of the blade of the log saw beneath the outer surface of the elongated body.
A method of cutting a log of wound product, comprising:
- receiving at least part of the log upon a mandrel;
- cutting the log with a log saw blade at a location along the mandrel;
- and
- receiving at least part of the log saw blade within a recess in the mandrel.
Dependencies are inferred from the claim text.