A cutting head for a hydraulic power tool includes a first jaw that includes a first ear configured with a slot for receiving a corresponding ear. The second jaw includes a second ear with a third ear bore that aligns in between a first ear bore and to a second ear bore of the first ear when the second ear is coupled in the slot of the first ear. The cutting head further includes a spring-biased flange coupled to a blade mounted to the first jaw and a retained coupled at a fixed position to a blade mounted to the second jaw. The retainer is configured to receive the flange during a cutting action such that the flange prevents the blades from shifting out of alignment during the cutting action.

An example shearing head includes a first member and a second member being rotatable about a pin. The first member has a shearing surface forming a substantially right angle with a first lateral surface of the first member. The second member has a shearing surface forming a substantially right angle with a second lateral surface of the second member. The second member includes a first distal surface and a second distal surface forming a substantially right angle. The first distal surface and the second distal surface are substantially perpendicular to the second lateral surface. The second member includes a third lateral surface opposing the second lateral surface and a retainer is attached to the second member. A first surface of the retainer contacts the first distal surface, a second surface of the retainer contacts the second distal surface, and the third lateral surface contacts a third surface of the retainer.

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.

A machine forms a whip from a length of cable. The machine includes a clamping assembly, a notching assembly, and a cutting assembly. The clamping assembly includes a pad which can be move into and out of a cable travel space. The notching assembly includes a notching saw which cuts an outer jacket of the cable in a direction substantially parallel to the longitudinal axis. Movement of the pad also causes movement of the notching saw to move into the cable travel space or into a raised position. The cutting assembly includes a cutting tool which transversely cuts the conductors of the cable.

A shear blade (2) is for a portable hydraulic cutting device, such as a rescue device having a blade body (9). The blade body (9) has an assembly region (18) and a cutting region (15), a cutting edge (16) in the cutting region (15), a contact surface (13), located on one side of the cutting edge (16), for an additional shear blade. An outer surface (14), located on the other side of the cutting edge (16), is provided to act on the object to be cut. The cutting region (15) has a recess (22) for receiving a cutting insert (21). The recess (22) is configured such that the cutting insert (21) is insertable into the recess (22) at an acute angle δ to the contact surface (13) of the shear blade (2).

A tool head includes a first frame having a first arm and a second arm extending from a base to a distal end. The tool head may also include a first blade in the frame between the first arm and the second arm. The first blade is movable from the base toward the distal end. The tool head further includes a second frame hingedly coupled to the first arm. The second frame may include a second blade. The second frame is configured to rotate between a closed-frame position and an open-frame position. The tool head further includes a trip lever hingedly coupled to the first arm and configured to rotate between an open-lever position and a closed-lever position. The trip lever is in the open-lever position when the second frame is in the closed-frame position and the trip lever is in the closed-lever position when the second frame is in the open-frame position.

Systems and methods for downsizing tires are disclosed. An automated downsizing apparatus comprises a cradle, mandrel table, cutting apparatus, and a control unit. A tire mounted on the cradle may be received by the movable and rotatable mandrel table, and positioned for engagement with the cutting apparatus. A user may customize a cutting configuration to be executed by the control unit. The control unit positions the mandrel table and cutting apparatus to remove portions from the tire, according to the cutting configuration. During operation, one or more system parameters may be monitored to determine compliance with the selected configuration, and the automated execution may be manually overridden.

Heavy-duty material processors (e.g., shears, concrete crushers) include a jaw that pivotally connects to another jaw. A hydraulic cylinder extends between the jaws to open and close the jaws in a shearing motion. Cutting/shearing/crushing blade inserts mount to detachable blade holders, which in turn mount to one of the jaws. Wedge blocks securely and detachably attach the blade inserts to the remainder of their associated jaw, and rely on force-amplifying wedge surfaces to ensure a secure attachment. The detachable blade holders may include lateral flanges that extend across an otherwise exposed face of their respective underlying jaw bodies to protect the jaw bodies during use. A blade on one of the jaws is laterally adjustable, which helps to free a jam if one of the jaws gets jammed into the space between blades in the other jaw.

A shearing apparatus includes a housing, dies within the housing, a force transmitting apparatus; and a die engaging mechanism between the force transmitting apparatus and the movable die. The dies are movable relative to each other and have cutouts which cut a workpiece. The die engaging mechanism is releasable to decouple the force transmitting apparatus from the movable die.

Systems and methods for downsizing tires, and an automated downsizing apparatus utilize a cradle, mandrel table, cutting apparatus, and a control unit. In various embodiments, a tire mounted on the cradle may be received by the movable and rotatable mandrel table, and positioned for engagement with the cutting apparatus. Users may customize one or more cutting configurations to be executed by the control unit. The control unit positions the mandrel table and cutting apparatus to remove portions from the tire, according to the cutting configurations. During tire downsizing operations, one or more system parameters may be monitored to determine compliance with the selected configuration, and the automated execution may be manually overridden.