Abstract: The invention is directed to a method and a device for producing metal, non-rotationally symmetric rings with a constant wall thickness along their circumference, particularly cam rings, starting from a hot-rolled pipe from which individual portions are severed, mechanically machined and subsequently hardened and tempered. Ring blanks of equal width are severed from the pipe and are mechanically machined on all sides, and the non-rotationally symmetric shape is produced by cold forming, the pipe or the severed ring blank having a structure suitable for cold forming.

Abstract: Apparatus for the continuous, chipless separation of individual, identical pieces from a solid round workpiece, includes at least two cutting rollers, cooperating with one another, for separating and rolling the workpiece. Each of the cutting rollers is defined by a separating portion and has a coil, with the height of the coil of one cutting roller being equal or slightly greater than the radius of the workpiece in the separating portion, and with the coil of the other cutting roller so configured as to eliminate a collision in the separating portion with the coil of the one cutting roller.

Abstract: A parting tool for continuous chipless separation of identical parts from a rotation-symmetric workpiece, includes a cutting roller having a main body advancing a workpiece in a transport direction from an entry side to an exit side. The main body has a slip bevel at the entry side and a cutting screw including a screw thread having coils which define a helix line and are configured with an increase in height. The screw thread includes in series an entry portion, a substantially cylindrical primary portion and a separating portion, whereby the coils in the entry portion, primary portion and separating portion having different slope angle, with the slope angle determined by a combination of a thickness of the screw thread and a root width between two neighboring coils of the screw thread, wherein the increase in height of the coils correlates to the helix line.

Abstract: The invention is directed to a method and a device for producing metal, non-rotationally symmetric rings with a constant wall thickness along their circumference, particularly cam rings, starting from a hot-rolled pipe from which individual portions are severed, mechanically machined and subsequently hardened and tempered. Ring blanks of equal width are severed from the pipe and are mechanically machined on all sides, and the non-rotationally symmetric shape is produced by cold forming, the pipe or the severed ring blank having a structure suitable for cold forming.

Abstract: A device for continuous chipless separation of single identical rings from a tubular workpiece, includes at least two cutting rollers which are placed about the tubular workpiece, and which operate in a same direction and are interconnected by a positive engagement. Each cutting roller includes a basic body having opposite axial ends defining an entry zone and an exit zone, respectively. The basic body has a slip bevel at the entry zone, a calibrating section at the exit zone, and a cutting screw disposed between the slip bevel and the calibrating section and including a helical main thread portion with a conical entry part and a substantially cylindrical primary part in succession of the entry part, whereby the cutting screw has at least one additional thread which is disposed between threads of the main thread portion of the cutting screw.

Abstract: Apparatus for the continuous, chipless separation of individual, identical pieces from a solid round workpiece, includes at least two cutting rollers, cooperating with one another, for separating and rolling the workpiece. Each of the cutting rollers is defined by a separating portion and has a coil, with the height of the coil of one cutting roller being equal or slightly greater than the radius of the workpiece in the separating portion, and with the coil of the other cutting roller so configured as to eliminate a collision in the separating portion with the coil of the one cutting roller.

Abstract: Intra-ocular implant lens (11) in which is embedded a transparent, tinted plastic disc (15).

Abstract: Device for perforating the lens capsule front wall in the eye of living beings for removing a part of the capsule wall and producing an opening through which the lens capsule contents can be removed. A tube is arranged on a hand piece, in which a wire provided with a point on its free end is held, said wire being connected to a drive motor putting the wire in axially reciprocating motion.

Abstract: A one-piece implantation lens is provided as a replacement for a natural lens which has been surgically, particularly extracapsularly, removed from the eye of living beings of a higher order and which has, on the one hand, a central lens body designed as a collective lens and, on the other hand, holding means in the form of thin-walled, flat support elements arranged peripherally on the lens body, radially extending outwardly from the lens body and fixing it in place, with the outer edge of the support elements lying on a circular arc around the center of the lens body; and which consists of a homogenous, crystal-clear, high-temperature resistant plastic, preferably vulcanized silicone, with a specific gravity of between 1.01 and 1.08, preferably approximately 1.02, wherein at least one of the two surfaces of the central lens body is in the form of the optically effective surface of a Fresnel lens.

Abstract: A posterior chamber implant lens as a replacement for the natural lens surgically removed, in particular extracapsularly, from the eye of a living being of a higher order, with a central lens body and holding means arranged on the lens body, extending radially outwards from the periphery of the body and fixing it in its position, of a homogeneous, clear, vulcanized silicone rubber, wherein(a) the lens body is formed as a convex lens, wherein the rear surface facing the rear wall of the lens capsule has a greater, preferably much greater curvature than the front surface facing the iris,(b) a basically radially outwardly extending, thin-walled support which encircles the center point of the lens body and has a diameter of between approx. 9.0 and approx. 12.0 mm, preferably of about 10.0 to 11.0 mm(c) there are several openings in the support element distributed over the element, preferably in the form of round holes(d) the support element has a material thickness of between approx. 0.15 mm and 0.

Abstract: A process of applying and drying a liquid lubricant on a metallic material to be mechanically worked has the steps of passing a metallic material through a coating container with a lubricant so that the lubricant coats the metallic material and the latter exits from the coating container through an opening, removing the superfluous portion of the lubricant without contacting the same with outside air, and advancing the lubricant coated metallic material through a drying channel in which air is urged in disturbed state. An arrangement for performing the method is also provided.

Abstract: An artificial implant lens for the eye of a living being has a central lens body and front and rear annular discs surrounding the lens body. The annular discs overlap the iris and secure the lens to the iris.