Abstract: A knife-edge conditioning apparatus comprises at least one precision angled knife guide with one face of the knife blade maintained in sustained sliding or rolling contact and which guides the elongated edge of the blade into sustained contact with the hardened surface of an object and positions the plane of the adjacent edge facet at a precise predetermined angle relative to the contact plane of the hardened surface made of a material of equal or greater hardness than the metal of the knife blade without any tendency to abrade as the blade face is moved along the guide with its elongated edge in sustained contact with the hardened surface.

Abstract: The coaxial dipole antenna of the present invention has a ground tube made of metal and a coaxial cable. The ground tube has a hollow containing part that the coaxial cable passes through, and an end of the ground tube has a clamping part. The clamping part has a first clamping slice to clamp a jacket of the coaxial antenna and a second clamping slice to clamp a metallic mesh of the coaxial cable. Such coaxial dipole antenna can transmit energy with the coaxial cable. The elements of the coaxial dipole antenna are combined with each other by pressing. Therefore, the coaxial dipole antenna can be manufactured by automation, the product thereof can be increased, and the quality thereof can be controlled.

Abstract: A seat pan for an automobile vehicle includes a frame carrying a suspension lattice having two sections separated by a vertical median plane dividing the seat into right and left hand sides. A motor and crankshaft combination is connected to each section of the lattice for generating in each section of the lattice a cyclic movement including, in the upper portion of its travel, a rearward movement of translation. The cyclic movements of the sections occur with an angular phase difference therebetween.

Abstract: An energy expenditure garment incorporates various techniques for providing resistance to the bending movements of the wearer. Such techniques include having a plurality of different types of resistance means. One of the resistance means is weights.