Abstract: A cutting tool comprising a body, an aperture defined through the body, a blade coupled to the body, and at least one protrusion extending from the body into the aperture. The blade has a cutting edge extending into the aperture. The protrusion(s) has(have) an end portion proximate the cutting edge and configured to impede access to the cutting edge. The protrusion(s) may be flexible, such that limited access to the cutting edge is permitted in a flexed state.

Abstract: A power driven portable sheet metal cutter includes a head with two blades that mounts to a hand-held electric or pneumatic rotating power unit. The fixed blade has a primary shearing surface that has a convex or radiused cutting edge, a convex or radiused bevel, and a convex or radiused body feature. There is also a clearance radius and a nose radius so that the cutter can cut a wide variety of shapes and configurations of corrugated building panels. A head with a right hand set of blades predominately cuts curves to the right, and a head with a left hand set predominately cuts curves to the left.

Abstract: A yard tool or unit having the motor barrier bracket upright when the tool barrier bracket and the control barrier bracket are rotated. The tool barrier bracket having flared operator and tool nozzle shields, a front suspension, one or more line filament or bladed tools, uniform air intake open to a fan to discharge debris and hold lubricants in a chamber. The front suspension fixed or to dial into tool heights and balance the unit. The tool output combines for no more than 200 rpm variance of motor input. The control barrier bracket having to mount a handlebar near the unit fixed point with a neighboring tool control grip, power control grip and transmission. The neighboring control grip to rotate the line filament or bladed tool in the right or left single fold operating framework free of collapsing.

Abstract: A cut-off blade assembly including a thin metal blade having an attachment portion by which the cut-off blade assembly can be attached to a dispenser, and a plurality of projecting similarly shaped triangular primary teeth. The triangular primary teeth each have two sides terminating in points and have bases adjacent the attachment portion that are aligned in a first direction along the blade so that their points project generally at right angles to that first direction. Edge surfaces on the sides and at the points of the primary teeth intersect a major surface of the primary teeth at an included angle of no greater than about 90 degrees to define a cutting edge at that intersection. The cut-off blade assembly further includes projections along one major surface of the primary teeth.

Abstract: A device for separating bony material, such as a rib, from a meat piece, for example a half belly piece, comprising a frame (1), wherein the meat piece is fixed,at least one carrier (2) supported by the frame,an elongate element (3) formed into a loop, a portion of which is arranged movably in the carrier, anddrive means (23) connected to the carrier (2) for setting the element (3) into movement relative to the carrier, such that said loop-shaped elongate element can be arranged around a rib by placing it from one end thereof into the meat piece and moving it along the rib, whereas simultaneously a tensile force perpendicularly onto the rib is exerted, whereupon the rib piece can be separated from the meat and membranes and owing to the loop-shaped element as much meat as possible will remain behind in the meat piece.

Abstract: An improved robotic contractile device having, besides general industrial and other-usage applicability for automation and other purposes, particularly attractive utility in and for prosthetic applicances and which is characterizable in being able to function in a way remarkably analogous to that of biological muscle is structurally made up of an expandable conduit which is contractible on fluid inflation with a plurality of longitudinally-directed filaments peripherally-secured thereabout that are connectable with an object to be moved or displaced as a result of the contractability experienced upon inflation of said conduit; there being associated means in the device for introducing and exhausting fluid under pressure to the interior of the said conduit in order to inflate same to effectuate its motive contraction action and deflate it to its normal rest condition of maximum or intermediate extension.

Abstract: A cutting tool for cutting a rabbet along the edge of a board material for constructing a rabbet joint which includes a body or holder. The body positions a cutting blade in two slots defined by the body. The blade is positioned in the slots so that the edge of a panel can be cut in one slot and the surface of the panel can be cut in the other slot to form a rabbet along the edge of the panel.

Abstract: A plasterboard trimming tool includes a main support element that consists of two parallel arms interconnected by a web and having lateral guiding surfaces which face one another and confine the marginal portion of the plasterboard between themselves in operation. A transverse guiding surface is provided on the web itself and/or an auxiliary support element which is selectively mountable on the web. A pair of cutting blades is mounted in respective holders at the same distance from the transverse guiding surface, the cutting blades having respective cutting edges which partially penetrate into the plasterboard to form continuous straight scoring cuts therein across the plasterboard from one another. The position of the auxiliary support element on the web can be reversed. The auxiliary support element has elongated sections of different thicknesses extending along the web, so that the distance of the scoring cuts from the edge face can be changed by reversing the position of the auxiliary support element.