A shaping or cutting machine, especially a skinner, at which an operator hand-feeds material to be cut or shaped toward a blade. Hand proximity detection devices are provided for operator safety; machine-vision across a surveilled volume before the blade, and conduction sensing devices. The blade is mounted on a rapidly retractable frame. Power from release of a spring physically moves the blade to a safe position if a hand is sensed. A gripping roller is driven by a rapidly stoppable motor.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

Systems and methods for cutting and cooking a substance are disclosed. Exemplary implementations may: convey, via a primary conveying subsystem, a layer of food substance along a conveyance path along which the layer of food substance is conveyed; cut, via a cutter, the layer of food substance into food pieces; apply, via a primary pressurized fluid outlet, primary pressurized fluid such that the food pieces are released from the cutter; heat, via the heating mechanism, a chamber; apply, via a secondary pressurized fluid outlet, secondary pressurized fluid so that the food pieces are held flat to the primary conveying substrate, and hold, via a secondary conveying subsystem, the layer of food substance flat between the primary conveying substrate and a secondary conveying substrate for at least a portion of the chamber.

Systems and methods for cutting and cooking a substance are disclosed. Exemplary implementations may: convey, via a primary conveying subsystem, a layer of food substance along a conveyance path along which the layer of food substance is conveyed; cut, via a cutter, the layer of food substance into food pieces; apply, via a primary pressurized fluid outlet, primary pressurized fluid such that the food pieces are released from the cutter; heat, via the heating mechanism, a chamber; apply, via a secondary pressurized fluid outlet, secondary pressurized fluid so that the food pieces are held flat to the primary conveying substrate, and hold, via a secondary conveying subsystem, the layer of food substance flat between the primary conveying substrate and a secondary conveying substrate for at least a portion of the chamber.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

Systems and methods for cutting and cooking a substance are disclosed. Exemplary implementations may: convey, via a primary conveying subsystem, a layer of food substance along a conveyance path along which the layer of food substance is conveyed; cut, via a cutter, the layer of food substance into food pieces; apply, via a primary pressurized fluid outlet, primary pressurized fluid such that the food pieces are released from the cutter; heat, via the heating mechanism, a chamber; apply, via a secondary pressurized fluid outlet, secondary pressurized fluid so that the food pieces are held flat to the primary conveying substrate, and hold, via a secondary conveying subsystem, the layer of food substance flat between the primary conveying substrate and a secondary conveying substrate for at least a portion of the chamber.

Systems and methods for cutting and cooking a substance are disclosed. Exemplary implementations may: convey, via a primary conveying subsystem, a layer of food substance along a conveyance path along which the layer of food substance is conveyed; cut, via a cutter, the layer of food substance into food pieces; apply, via a primary pressurized fluid outlet, primary pressurized fluid such that the food pieces are released from the cutter; heat, via the heating mechanism, a chamber; apply, via a secondary pressurized fluid outlet, secondary pressurized fluid so that the food pieces are held flat to the primary conveying substrate, and hold, via a secondary conveying subsystem, the layer of food substance flat between the primary conveying substrate and a secondary conveying substrate for at least a portion of the chamber.

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism for changing a blade housing diameter between blade supporting and blade changing positions. The split blade housing includes an annular blade support section, a mounting section and a split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The split includes a radial split section and an angled split section adjacent the inner wall. The mounting section includes first and second body portions on opposite sides of the split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between closed and open positions to change the blade housing diameter.