Abstract: A wishbone for an automotive suspension and comprising two sheet metal halves, for attaching the front wheels of a motor vehicle. The wishbone is provided with two points of articulation on the chassis, one behind the other along the direction of travel and representing a horizontal axis (5) for the wishbone (2) to tilt around. The wishbone is also provided with one point (8) of attachment for the suspension. The object is a simpler and hence more cost-effective wishbone. At least one of the points (3 & 4) of articulation is accordingly a hollow hexagonal cross-section bolt (11) comprising two halves (18 & 19) that engages a bearing housing and is an integral component of the wishbone halves (14 & 15).

Abstract: Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in operation while simultaneously varying how long the valve or valves remain open, whereby the valves are actuated by rocker levers that are in turn actuated by an angled lever, whereby the positions of the levers are varied in order to vary the length and duration of the stroke. The valves are actuated at low engine speeds by assigning a specific narrow angle of rotation to each abbreviated stroke to be established. FIG. 1 illustrates valve stroke controls with an angled lever (2) actuated by a cam (17) mounted on a lateral roller (3). In the event of a misalignment, a planetary gear comes into play, wherein a roller (9), mounted on the rocker lever (8) that actuates the valve (1) acts a sun wheel, the angled lever (2) acts as a planet wheel, and a setting lever (5) acts as a planet bearing.

Abstract: A piston-rod assembly with a piston rod having at least one attachment at one end. The piston rod is fabricated of fiber reinforced composite. The piston rod has a body of fiber-reinforced ceramic with a basic matrix of carbon fibers or ceramic fibers or both wherein at least silicon carbide is embedded and with an open porosity, at least at the surface layer, of no more than 3% of the volume of that layer admitting lubricants into the pores. The at least one attachment (2, 18a, 19, or 22) includes at least one component of a non-ceramic material that fits into and/or interlocks with the piston rod.

Abstract: A piston for a hydraulic dashpot. The piston (1) is mounted on one end of a piston rod (3), travels back and forth inside a cylinder (2), which it divides into two chambers (4 & 5), and has a body (10) provided with axial channels (6 & 7), each of which can be opened and closed at the end by a one-way valve in the form of a cup spring or stack of cup springs (8 & 9), independently adjusting their tensions for both the compression and the suction phases. The cup springs (8 & 9) rest against and in alignment with the body, and the tension is adjusted by deforming the body resiliently or plasticly against its contact surface.

Abstract: The invention relates to a spring carrier for the chassis of a motor vehicle. Said carrier is used to support a coil spring (1) which is braced between two spring plates (2, 3). At least one of said spring plates (2) can be axially adjusted by means of a drive unit comprising a gearbox and an electric motor. Preferably, at least one part of the piston rod (6) and/or the shock-absorber tube (5) of a shock-absorber or a suspension strut is arranged inside the coil spring (1). The aim of the invention is to develop one such spring carrier in such a way that the distance between the upper spring end and the vehicle body can be kept small in a cost-effective manner. To this end, the electric motor is embodied in the form of a ring motor having an external stator (15) and an internal rotor (16) which comprises a displacement nut on its inner side, said displacement nut axially displacing a spring plate carrier (21) connected to the spring plate (2) and externally embodied as a threaded spindle.

Abstract: A seal for hydraulically sealing a piston rod that travels axially into and out of a housing, preferably in a hydraulic dashpot. The seal comprises a preferably resilient-plastic sealing component (5). The sealing component is provided with one or more sharp ridges (10, 11, & 12) that rest against the piston rod, is tensioned across an elastomeric component (8), and is radially and axially secured along with the latter in a seal holder (2). The sealing component has an axial cylindrical wall (6) and a radial annular flange (7). The wall rests snug against the piston rod. The elastomeric component is annular and is provided with an inner surface (9) that tapers in toward the center of the housing and that the wall rests against. The outer surface of the elastomeric component is accommodated subject to radial tension in a setback (13) in the seal holder.

Abstract: A hydraulic dashpot comprises, first, a cylinder and a piston. The cylinder (1) is charged with shock-absorbing fluid. The piston (3) is provided with ports and valves, is mounted on one end of a piston rod (2) and divides the cylinder into two chambers. The piston rod travels into and out of the cylinder and is provided with a central bore (20). The dashpot also comprises an adjustable bypass accommodated inside the piston rod or inside an extension (7) thereof. The bypass is provided with radial outlets (19, 23, 37) through the piston rod or extension. The cross-section of the bypass during the compression phase can be established independent of its cross-section during the suction phase and vice versa. There are two valves in the end of the piston rod near the piston or in the piston-rod extension. Each valve is provided with a rotating plunger (18, 21, 32, 33) with a rotary connection. Each plunger operates in conjunction with a radial inlet or outlet (19, 23, 27).

Abstract: A resilient leg as part of an attachment for the wheel of a motor vehicle. The leg is provided with a piston rod (4) that has a piston (5) attached to it, that travels into and out of a housing (1), that is attached at its outer end to the vehicle's chassis, and that is maintained in radial alignment by two separated bearings. The piston divides the interior of the housing into two fluid-charged chambers (9 & 10). The object is to ensure satisfactory transmission of moments of force from the piston rod to the housing in a leg that is light in weight. The piston rod accordingly extends through, and is maintained in radial alignment at, both ends of the leg.

Abstract: A door driving-mechanism torque transmission (20, 40, or 50) for transmitting torque from a door-driving motor assembly, especially a geared motor (36), to a shaft (33) connected to a door panel (31). A driving component rotates around an axis and can be engaged with the door-driving motor assembly. A driven component rotates around another axis and can be engaged with the shaft. A bearing assembly accommodates both components mounted on separated axes of rotation. There is a coupling connection (2) between both components. The object is to promote smooth operation and decrease frequency of repair. The bearing assembly (4 or 51) is accordingly provided with a driving-component bearing half (5 or 52) that the driving component (1) is mounted on and with, separated therefrom, a driven-component bearing half (6 or 53) that the driven component (3) is mounted on. The bearing halves (5 & 6 or 52 & 53) are connected elastically for the purpose of attenuating torsional vibrations and impacts.

Abstract: The invention relates to a jack comprising a stand body, which rests on the ground (4) and which consists of a stand column (1) and foot (2), and comprising a supporting arm (5), which is fastened to the stand column (1) in a manner that permits it to move around a fixed horizontal pivotal axis, and which is directly or indirectly raised or lowered in relation to the ground (4) by means of a movement spindle (7). The free end (6) of the supporting arm is provided with a fixed or pivotal supporting part, and the end that engages inside the stand column (1) comprises a denticulation, which engages inside a counter denticulation of a control slide (10) and which displaces the control slide (10) parallel to the longitudinal extension of the stand column (1). The aim of the invention is to simplify the control slide (10) and to make the production thereof more economical.

Abstract: A wheel suspension for land vehicles that is provided with a spring resting against at least one seat, with a dashpot, and with an attachment for a stabilizing rod, whereby one seat can be adjusted axially parallel to the spring. The object of the invention is to allow the stabilizing rod's attachment to be situated in the vicinity of the seat. An attachment (10 or 20) for the stabilizing rod is accordingly directly mounted on or indirectly attached to the spring seat (8). The attachment can also be mounted on or attached to the mechanism that adjusts it, at a variable distance from the seat.

Abstract: The invention relates to a jack with supporting parts, which are provided as profiles that have U-shaped cross-sections and lateral profile limbs (15, 17) or which are provided as elements with laterally elevated sheet metal lobes (13). Said supporting parts are pivotally interconnected by joints (5, 6) in such a manner that the lateral profile limbs (15, 17) and/or the elevated sheet metal lobes (13) overlap in the vicinity of the joints (5, 6), and arbors pass through borings in the lateral profile limbs (15, 17) or elevated sheet metal lobes (13). The aim of the invention is to reduce the weight of a jack of the aforementioned type as well as the risk of the profile limb (15, 17) kinking.

Abstract: A device for increasing shock absorption by hydraulic means in the terminal section (19 & 27) of hydraulic shock absorbers with a shock-absorption piston (3) that divides the shock absorber into two compartments. The width of a channel that conveys hydraulic fluid through the piston is reduced by partly blocking the access of fluid thereto. The access comprises several individual accesses that do not mutually communicate. To ensure precise and constant increased shock absorption in the vicinity of the buffers, one or more individual accesses are completely blocked.

Abstract: The invention relates to a holding device for holding glass closures (20) formed by individual glass profile elements, especially U-shaped glass profile elements (21, 21′), or other long glass elements, especially insulating glass elements. In order to prevent water condensation inside the glass closure (20), the holding device comprises at least one holding rail (2; 32, 36, 37; 34, 64, 65; 34, 64′, 76; 79; 80) for holding or mounting and for laterally guiding and supporting the individual long glass elements or glass profile elements (21, 21′) or the glass closure (20).

Abstract: A piston-rod scraping ring (7) of elastic material accommodated in an inward opening groove (9) in a dashpot cap (2) and especially intended to scrape water and dirt off a piston rod (1). The object is to allow the ring to be easily inserted into the groove and secured there until the overall dashpot is assembled. The groove is accordingly higher at its outer circumference and its inner circumference (12) is deformed, compressing the rim (8) in place.

Abstract: A hydraulic dashpot with a cylinder (1) full of shock-absorbing fluid, with a piston (3) mounted on the end of piston rod (2), traveling back and forth inside the cylinder, separating the cylinder into two compartments (4 & 5), and provided with ports and shock-absorption valves, and with a variable bypass system accommodated in an axial bore (13) in the piston rod provided with lateral radial openings (11 & 26) extending through the rod. The object is to allow fixed independent establishment of the cross-section of the bypass system available for the fluid to flow through as the piston rod travels in the direction associated with the suction phase and of the cross-section of the bypass system available for the fluid to flow through as the piston rod travels in the direction associated with the compression phase.

Abstract: An arrangement for monitoring a condition of a counterbalance torsion spring in an overhead door or gate and preventing the door or gate from accidentally slamming shut or dropping too rapidly when the spring fails. The arrangement includes a drum mounted on a shaft which transmits the torque of the spring to the drum. During normal operation a sensor and release assembly maintains a catcher in a inactive position and when the spring fails, the sensor and release assembly allows the catcher to move to an active position and engage a grabber disposed on an inside surface of the drum to block rotation of the drum and therefore movement of the door or gate.

Abstract: Jack with an erect component in the form of a leg (1) that rests against the ground (4) and of a foot (2) articulated thereto and with a vehicle-lifting arm (6) that pivots around a fixed horizontal axis on the leg. The arm can be directly or indirectly raised or lowered away from and toward the ground by means of a spindle (7). The arm is provided with a fixed or pivoting vehicle-supporting component at its free end. At the other end, which engages the leg, the arm is provided with appropriate controls that displace a slide (10) along the leg such that the lower end (19) of the slide can come to rest against the leg-supporting surface (3) of the foot. The object is a lighter-weight jack that will be just as sturdy. A stop (21) is accordingly positioned on top of the leg-supporting surface and facing the slide's lower end.

Abstract: An automotive jack with a vertical main structure resting on a ground and provided with a leg, a foot, and a load supporting arm swingable around a fixed horizontal axis on the leg. A threaded shaft is used for raising the arm away from lowering toward the ground; a vehicle-engaging component with a free end and a convex adapter head at the free end. The adapter head engages a matching concave recess below a bottom of a vehicle being lifted.