A method of forming a fracture start portion of a con rod for forming fracture start portions of a con rod at opposing positions in an inner peripheral surface of a large end of the con rod made of metal, includes a first step of forming a groove portion at a position corresponding to the fracture start portion by using a first insert tip with a large tip end and a second step of forming the fracture start portion, which has become a V-shaped groove, by machining a bottom portion of the groove portion smaller by using a second insert tip having a tip end smaller than the first insert tip.

A cutting tool for cutting materials with a straight perpendicular cut, an angled cut, a length-wise cut, and/or a notched cut. The cutting tool including a base, a pair of supports, a cam pivotally connected to the pair of supports, and a blade holder and a blade positioned between the cam and the base, where the blade holder and the blade are slideable from a first cutting position to a second cutting position for cutting notches and other shapes into the flooring materials.

A cutting apparatus includes a blade relatively movable with respect to a media to cut the media along a cutting line. The blade is so constructed to pre-cut the media along the cutting line to leave non-cutting portions and to cut the non-cutting portions after pre-cutting the media.

A cutting apparatus includes a blade relatively movable with respect to a media to cut the media along a cutting line. The blade is so constructed to pre-cut the media along the cutting line to leave non-cutting portions and to cut the non-cutting portions after pre-cutting the media.

An apparatus for preparing notches in material samples for fracture mechanics testing is disclosed. The apparatus includes a base and a sample holder for gripping a sample. A linear rail is inclined at an angle relative to the sample holder, and may be attached to an attachment column extending upward from the base. A carriage assembly attached to the linear rail includes: a carriage capable of sliding up and down along the linear rail and a blade holder attached to the carriage. The blade holder slides up and down the linear rail to initiate a notch in the sample.

A printer includes a conveying device that conveys a printing medium and a cutting device that makes a trim cut in at least one of a plurality of corners of a region where a printed material has been printed. The conveying device conveys the printing medium to the cutting device before the cut is made.

A printer that partially cuts roll paper to leave an uncut portion prevents paper jams from reversing the roll paper. A printer 1 has a print unit 41 for printing images on roll paper R; a cutter unit 46 disposed downstream in the conveyance direction from the print unit for cutting the roll paper and leaving an uncut portion; a conveyance unit 42 for conveying the roll paper in the conveyance direction or a reverse direction that is the opposite of the conveyance direction; and a controller 40 that executes a reversing process conveying the roll paper in reverse by the conveyance unit 42 when the roll paper is separated from the paper roll at the uncut portion after the cutter unit 46 cuts the roll paper, and not executing the reversing process in specific circumstances in which the roll paper remains connected through the uncut portion.

A printer that partially cuts roll paper to leave an uncut portion prevents paper jams from reversing the roll paper. A printer 1 has a print unit 41 for printing images on roll paper R; a cutter unit 46 disposed downstream in the conveyance direction from the print unit for cutting the roll paper and leaving an uncut portion; a conveyance unit 42 for conveying the roll paper in the conveyance direction or a reverse direction that is the opposite of the conveyance direction; and a controller 40 that executes a reversing process conveying the roll paper in reverse by the conveyance unit 42 when the roll paper is separated from the paper roll at the uncut portion after the cutter unit 46 cuts the roll paper, and not executing the reversing process in specific circumstances in which the roll paper remains connected through the uncut portion.

A printer that partially cuts roll paper to leave an uncut portion prevents paper jams from reversing the roll paper. A printer 1 has a print unit 41 for printing images on roll paper R; a cutter unit 46 disposed downstream in the conveyance direction from the print unit for cutting the roll paper and leaving an uncut portion; a conveyance unit 42 for conveying the roll paper in the conveyance direction or a reverse direction that is the opposite of the conveyance direction; and a controller 40 that executes a reversing process conveying the roll paper in reverse by the conveyance unit 42 when the roll paper is separated from the paper roll at the uncut portion after the cutter unit 46 cuts the roll paper, and not executing the reversing process in specific circumstances in which the roll paper remains connected through the uncut portion.

To provide a marking device that enables to easily find a tag determined as defective (RFID error, etc.) among a plurality of tags that are stacked or the like. The marking device to use with a sheet includes cut and raising part for forming, as a failure process, a cut and raised section to be positioned at an edge of the sheet having been found the defect.