Abstract: A hand tool for sheet metal workers notches and soft-noses an end of a sheet metal drive in one operation, and saves time and prevents injuries as compared with use of tin snips to do the same job. Paired handles of the tool are held in one hand while, with the other hand, the end of a sheet metal drive is slid onto an upper plate and against a stop. The upper plate, a lower plate fixed to it, and a blade shaped to engage portions of the periphery of the upper and lower plates form a shear in which a lower plate fixed in parallel spaced relation to the upper plate serves to support a portion of the drive. Shape of the shear causes the drive to be notched and soft-nosed with a squeeze of the handles.

Abstract: First and second blade members have pivot bosses through which the blade members are pivotably connected for rotation about an axis perpendicular to the pivot bosses. The blade members have cutting surfaces offset with respect to the pivot bosses to permit previously cut material to pass the blade members without interference. The cutting surfaces are rotatable between an open position and a closed position for cutting the sheet material therebetween. The pivot bosses and the cutting surfaces are adapted for removal of material therefrom to permit resharpening of the offset snips while maintaining the offset of the cutting surfaces. One of the blade members may include a recess to permit cutting of both left-hand and right-hand curves. Integral wire cutting means, integral locking means, and an improved handle configuration are also provided.

Abstract: A pair of snips comprising handle levers pivoted at one end and elongated shaped centrally pivoted blade cross-pivoted levers pivoted at their ends opposite their blades to said handle levers adjacent their end pivot, which blade levers have integrally formed therewith projections extending radially outwardly from their center cross pivot diametrically opposite the edges of said blades, which projections have contacting surfaces in substantially the same plane as the contacting edges of said blade forming rides for restricting the spreading of said blades axially of their cross pivot.

Abstract: A surgical manipulator useful to apply compressively opposed forces and enable the surgeon to rotate the manipulator and the article it is applied to, with minimal lateral wobble and tremor.The manipulator comprises a pair of prongs, each of which supports a jaw with an operative element such as a needle holder, tissue pickup, nipper or scissors. The prongs are resiliently biased by bias means away from one another in a plane of flexure to spread the operative elements apart, and the prongs can be closed by force exerted on manipulation surfaces carried by the prongs. A spindle includes a knuckle rest which is closer to the joinder of the prongs than the manipulation surfaces. The knuckle rest bears against a knuckle (defined to include the muscle pad between the thumb and the index finger) when the device is held by the surgeon with his thumb and index finger on respective manipulation surfaces.

Abstract: A shearing cutter for wire and cable, particularly insulated metal wires and wire bundles as used in electrical and electronic circuits, is constructed in the form of a hand tool with elongated, hinged handles adapted to develop shearing forces between cooperating blades cantilevered beyond the hinge point from each of the handles. The blades are symmetrical in shape and define a substantially circular opening between semicircular bights sharpened into cutting edges in each of the blades. A wire or cable is maintained in a central location with respect to the aforementioned bights by the enveloping nature of the cutting edges, resulting in a clean, uniform shear plane.