As shearing blades of a first jaw portion, a shearing machines includes: a tip blade; a pair of first parallel shearing blades bent at an obtuse angle to the biting direction of the tip blade and disposed both sides of the blade width; and a pair of second parallel shearing blades bent at an obtuse angle to an attaching portion of the first parallel shearing blades and disposed on both sides of the blade width. As a tip blade, the shearing machine includes: a point blade a pair of tip tapered blades disposed on both sides of an end portion and whose blade width is increased toward the rear end; and a pair of tapered blades bent at an obtuse angle to an attaching portion of the rear end portion of the tip tapered blades and disposed toward the first parallel shearing blades.

A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.

A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.

A method of trimming and sizing a metal piece. A trimming and sizing apparatus including a travel way, at least one cutting torch assembly having a trimming cutting torch and sectioning cutting torch, and at least one table. A substantially rectangular metal piece is placed on the table. The cutting assembly is traversed along the travel way and the trimming cutting torch makes a longitudinal cut in the metal piece creating a scrap piece. Simultaneously with the cutting of the scrap piece by the trimming cutting torch, the sectioning cutting torch is rotated in an arc around the trimming cutting torch such that the sectioning cutting torch is simultaneously moved in the longitudinal direction and in an arc around the trimming cutting torch creating a cut in the scrap piece such that a sized scrap piece having a desired length/weight is completely removed from the scrap piece.

Disclosed is a flattening device, comprising: a rack; a material-pressing component, which is provided on the rack and has a material-pressing part; a material-guiding component, which is provided on the rack and has a material-guiding part corresponding to the material-pressing part, the material-pressing part and the material-guiding part being configured to be able to bear against two sides of a sheet material respectively, so as to form a flattening channel between the material-guiding part and the material-pressing part; and an adjusting component, which drives at least one of the material-pressing component and the material-guiding component to move, so as to adjust the distance between the material-pressing part and the material-guiding part. Further disclosed are a material-conveying apparatus including the flattening device and a sheet material processing system comprising the material-conveying apparatus.

A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.

The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The hammer includes a connector end having a rod hole therein, a contact end for delivery of energy to the material to be comminuted, and a neck affixing the connector end to the contact end. The neck is formed with at least one neck recess therein. In other embodiments, one or more shoulders are positioned around the periphery of the rod hole for added strength. In still other embodiments, the contact end is configured with more than one contact surface.

The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The hammer includes a connector end having a rod hole therein, a contact end for delivery of energy to the material to be comminuted, and a neck affixing the connector end to the contact end. The neck is formed with at least one neck recess therein. In other embodiments, one or more shoulders are positioned around the periphery of the rod hole for added strength. In still other embodiments, the contact end is configured with more than one contact surface.

Disclosed is a flattening device, comprising: a rack; a material-pressing component, which is provided on the rack and has a material-pressing part; a material-guiding component, which is provided on the rack and has a material-guiding part corresponding to the material-pressing part, the material-pressing part and the material-guiding part being configured to be able to bear against two sides of a sheet material respectively, so as to form a flattening channel between the material-guiding part and the material-pressing part; and an adjusting component, which drives at least one of the material-pressing component and the material-guiding component to move, so as to adjust the distance between the material-pressing part and the material-guiding part. Further disclosed are a material-conveying apparatus including the flattening device and a sheet material processing system comprising the material-conveying apparatus.

An indexable piercing tip mounts to a nose portion of one of the jaws of a heavy-duty demolition shears so as to enclose and protect top, bottom, front, and two opposing side surfaces of the nose portion during use of the shears. The piercing tip has a first operative position in which a first set of piercing and shearing edges of the piercing tip are presented for use. When the first set gets dull or worn, the piercing tip can be rotated/indexed 180° degrees so as to present a second set of piercing and shearing edges of the piercing tip for use.