Abstract: A chain link 2 for connecting two additional chain links 3, 3.1 hooked therein, for the formation of a round steel link chain, for example, a conveyor chain of a scraper conveyor, comprises two bends 4, 5 and two legs 7, 7.1 connecting the bends. On its external side facing away from its inner space 6, one or more functional surfaces 8, 11, 15, 15.1, 16 are present. The chain link 2 is designed asymmetrically with respect to at least one of its central planes in at least one of its two bends 4, 5 so as to form or enlarge one or more functional surfaces 8, 11, 15, 15.1, 16.

Abstract: A chain link 2 for connecting two additional chain links 3, 3.1 hooked therein, for the formation of a round steel link chain, for example, a conveyor chain of a scraper conveyor, comprises two bends 4, 5 and two legs 7, 7.1 connecting the bends. On its external side facing away from its inner space 6, one or more functional surfaces 8, 11, 15, 15.1, 16 are present. The chain link 2 is designed asymmetrically with respect to at least one of its central planes in at least one of its two bends 4, 5 so as to form or enlarge one or more functional surfaces 8, 11, 15, 15.1, 16.

Abstract: A chain 1 with individual links 2, 3, inserted one into the other, of which at least every second link is formed as a flat link 3. When the flat link 3 has a vertical orientation in the shank region 6, 7 connecting the curvatures 4, 5, the flat link has a smaller maximum diameter H in the vertical direction than in the horizontal direction L. The vertical diameter H of a shank 6, 7 being smaller than the diameter the flat link 3 in the curvatures 4, 5, such that the flat chain links 3 have a ratio of its cross sectional area in the shank region 6, 7 to the cross section area in the central regions 8 of the curvatures 4, 5 is greater than 0.55 and smaller than 0.85. The plane of the horizontal maximum diameter L in the shank region 6, 7 is disposed off-center and offset with respect to the outside of the particular shanks 6, 7.

Abstract: The present invention discloses a chain where, upon the stressing of the chain, the links automatically arrange themselves with respect to one another in terms of their position in the chain, preventing any undesired link. A link can be developed in the form, in top view, of a drop or in the form of a keyhole. The described chain is not only suitable for application in lashing loads, but also for use with the manipulation of all accessory chain parts, in which the placement of a link is required, for example shortening hooks, shortening straps or the like.

Abstract: A chain lock for high-strength steel chains has two lock parts that are the same and can be joined together in a rotation-symmetry arrangement with one another, in the longitudinal direction. Each lock part has a longitudinal stay having arc segments that follow it at both ends. There are two coupling elements that are configured complementary to one another and are assigned to the two arc segments of each lock part. One of the elements is configured as a locking stay that follows the longitudinal extension of the lock part, and the other element is configured as a stay accommodation. The locking stay of the one lock part engages in the stay accommodation of the other lock part and rests against the complementary coupling surface of the stay accommodation with its coupling surface formed by the face end in the joining direction. The coupling surfaces comprise a coupling surface segment having a defined width, which has no curvature or only an insignificant curvature pointing in the joining direction.

Abstract: A chain lock for high-strength steel chains has two lock parts that are the same and can be joined together in a rotation-symmetry arrangement with one another, in the longitudinal direction. Each lock part has a longitudinal stay having arc segments that follow it at both ends. There are two coupling elements that are configured complementary to one another and are assigned to the two arc segments of each lock part. One of the elements is configured as a locking stay that follows the longitudinal extension of the lock part, and the other element is configured as a stay accommodation. The locking stay of the one lock part engages in the stay accommodation of the other lock part and rests against the complementary coupling surface of the stay accommodation with its coupling surface formed by the face end in the joining direction. The coupling surfaces comprise a coupling surface segment having a defined width, which has no curvature or only an insignificant curvature pointing in the joining direction.

Abstract: The invention relates to a plough chain strand 50 with horizontal chain links and vertical chain links including normal chain links 30, 40, the chain link legs of which are connected by chain link arcs and engage one another alternately in an intractable manner. In the chain strand 50 in front of and behind the chain connector link 10 is arranged in the same installation position as this at least one special chain link 20, the link legs of which comprise the same outer contour, especially the same width and the same thickness, as the outer legs of the connector link parts of the chain connector link 10. Due to the special chain links 20 preceding and trailing the chain connector link and having the same or a marginally larger contour as this, the wear of the chain connector link 10 of the chain strand 50 according to the invention is reduced or avoided if compared to known plough chains.

Abstract: A chain 1 with individual links 2, 3, inserted one into the other, of which at least every second link is formed as a flat link 3. When the flat link 3 has a vertical orientation in the shank region 6, 7 connecting the curvatures 4, 5, the flat link has a smaller maximum diameter H in the vertical direction than in the horizontal direction L. The vertical diameter H of a shank 6, 7 being smaller than the diameter the flat link 3 in the curvatures 4, 5, such that the flat chain links 3 have a ratio of its cross sectional area in the shank region 6, 7 to the cross section area in the central regions 8 of the curvatures 4, 5 is greater than 0.55 and smaller than 0.85. The plane of the horizontal maximum diameter L in the shank region 6, 7 is disposed off-center and offset with respect to the outside of the particular shanks 6, 7.

Abstract: The invention relates to a plough chain strand 50 with horizontal chain links and vertical chain links consisting of normal chain links 30, 40, the chain link legs of which are connected by means of chain link arcs and engage one another alternately in an intractable manner. In the chain strand 50 in front of and behind the chain connector link 10 is arranged in the same installation position as this at least one special chain link 20, the link legs of which comprise the same outer contour, especially the same width and the same thickness, as the outer legs of the connector link parts of the chain connector link 10. Due to the special chain links 20 preceding and trailing the chain connector link and having the same or a marginally larger contour as this, the wear of the chain connector link 10 of the chain strand 50 according to the invention is reduced or avoided if compared to known plough chains.

Abstract: The present invention discloses a chain where, upon the stressing of the chain, the links automatically arrange themselves with respect to one another in terms of their position in the chain, preventing any undesired link. A link can be developed in the form, in top view, of a drop or in the form of a keyhole. The described chain is not only suitable for application in lashing loads, but also for use with the manipulation of all accessory chain parts, in which the placement of a link is required, for example shortening hooks, shortening straps or the like.

Abstract: A chain joint for a high-strength link chain is disclosed. The chain joint is formed from two joint parts form-fittingly connected with one another and a center piece braced on the two opposing longitudinal side bars of joint parts. The center piece is detachably disposed with respect to the joint parts. The center piece is formed from a fitting plug and at least one fitting element indicating the specified set-in position of the fitting plug based on resilient material properties. The fitting element serves a fitting sleeve, into which the fitting plug can be set and in which the fitting plug is at least predominantly enclosed.

Abstract: A shortening hook for strands of round link chain. A safety body is arranged in the mouth of the hook. The safety body is moveable by hand against the tension of a reset spring from the area of the mouth of the hook transversely to the trajectory motion of the hook. An operating link projects into the mouth of the hook and is arranged at the end section of the safety body. This operating link can be pressed back when the hook shaft takes hold so that the safety body frees up the mouth area.

Abstract: A shortening hook for strands of round link chain. A safety body is arranged in the mouth of the hook. The safety body is moveable by hand against the tension of a reset spring from the area of the mouth of the hook transversely to the trajectory motion of the hook. An operating link projects into the mouth of the hook and is arranged at the end section of the safety body. This operating link can be pressed back when the hook shaft takes hold so that the safety body frees up the mouth area.

Abstract: A chain joint for a high-strength link chain is disclosed. The chain joint is formed from two joint parts form-fittingly connected with one another and a center piece braced on the two opposing longitudinal side bars of joint parts. The center piece is detachably disposed with respect to the joint parts. The center piece is formed from a fitting plug and at least one fitting element indicating the specified set-in position of the fitting plug based on resilient material properties. The fitting element serves a fitting sleeve, into which the fitting plug can be set and in which the fitting plug is at least predominantly enclosed.

Abstract: Endoscopic surgery nippers have a proximal end body to which is detachably affixed the proximal end zone of a tube forming the nippers' shank, the end zone being detachably fixed in the axial position while rotatable about the axis of the end body. A grip is fixed in place on the end body and another grip is pivotally supported on the first grip and has a swivel socket along the tube axis on the proximal side of the end body. A nipper head supports nipper arms and is detachably connected in rotatably and in axially geometrically interlocking manner with the distal tube end. A rod driving the nipper arms and affixed in axially displaceable and non-rotatable manner to the nipper head extends through the tube and is detachably supported at its distal end in the swivel socket.

Abstract: A stemmed endoscopic instrument has a distal operational tool, a proximal drive unit and a stem containing a force transmitting element extending through and displaceably received in the stem. A distal end of the force transmitting element acts on the operational tool and a proximal end engages the drive unit so that the force transmitting element drives the operational tool when the drive unit is actuated. An overload protection device limiting the traction force transmissible from the drive unit to the tool has a coupling with two mutually detachably connected coupling elements, the coupling being adjusted so that when a defined tension or force threshold is exceeded, the coupling elements separate from each other and force transmission is interrupted.

Abstract: A bipolar endoscopic instrument has a tubular stem fitted at its distal end with two arms pivotally supported on a shaft. The arms are pivoted by actuating an axially displaceable push/pull element mounted in the stem. The arms are connected through mutually electrically insulated leads to the terminals of a high-frequency power source, the shaft having two mutually insulated, electrically conductive segments each electrically connected to one of the electrical leads and the arm associated with this lead.

Abstract: A surgical forceps assembly for endoscopic and especially arthroscopic interventions has a stem fitted at its distal end with a forceps with a fixed jaw and a pivotable jaw. The stem has at its proximal end an actuator and a force transmitting element passes through and is slidable in the stem. The proximal end of the force transmitting element is connected to and movable by the actuator and the distal end acts on a laterally projecting pin of a lever attached to the pivotable jaw to move the forceps between open and closed positions when the force-transmitting element is axially displaced. The distal end of the force-transmitting element has a coupling with an elongated slot and the lever pin passes through the elongated slot wherein it is received and guided in a cam relationship.

Abstract: A medical endoscope has a superelastic-alloy force-transmitting element having at least one recess in its surface at a coupling site and being positively connected to a load-receiving component, the recess being formed by sublimation removal of material.