Abstract: A press unit having gripper rails to be exchanged at the same time as the tools, wherein in hollow spaces of the ends of the gripper rails, means are inserted for the locking of the form-fitting or toothed connection of gripper rails on the side of the press and gripper rails on the side of the tool that are to be connected with one another for the transfer of workpieces. The device comprises a control element, a pressing rod that can be acted upon by the control element, and a locking member connected to said pressing rod, with said locking member being slidable in a preferably press side end of the gripper rails and a mating piece for receiving the locking member during the form-locking or toothed connection of the ends of the gripper rails and being slidable in an end at the side of the tool.

Abstract: A three-guide member wheel suspension in which the wheel carrier is connected with the vehicle body or the like by way of three guide members pivotally connected at the vehicle body. The three guide members consist of a longitudinal guide arm, an upper cross guide member and a lower cross guide member. In order to be able to realize an effective center of rotation for the wheel carrier which lies clearly above the wheel axle in order to obtain with a rear axle a good accelerating pitching compensation and a good deceleration pitching compensation, the longitudinal arm is pivotally connected with the wheel carrier. Additionally, the upper cross guide member is pivotally connected intermediate its joint on the wheel carrier side and its joint on the body side with one end of a support strut which pivotally engages with its other end at the longitudinal arm between the pivot axis at the wheel carrier and the forward bearing support of the wheel carrier.

Abstract: In order to obtain an arrangement of an exhaust-gas system, that is constructively simpler and lighter in weight, for an internal-combustion engine having an exhaust-gas turbosupercharger comprising a compressor casing flanged to the turbine casing, the exhaust-gas return system is disposed at the exhaust-gas turbosupercharger between the hot-gas inlet of the turbine casing and the air-charge outlet of the compressor casing. The exhaust-gas return system is preferably on the one side connected with a damming chamber formed in the hot-gas inlet duct of the turbine casing, and on the other side, with an annular chamber disposed in the compressor outlet duct. By means of a section of the connecting pipe of the exhaust-gas return system disposed at a connecting piece of the compressor casing tangentially to the annular chamber and in outflow direction of the compressed air charge, the returned exhaust gas, in a helicoidal flow direction, is led to the air-charge current for intensive mixing.

Abstract: A pad assembly for eyeglass frames, in which an insert with a mounting portion is molded-in into the nose pad, whereby the mounting opening of the mounting portion is located outside of the nose pad; a connecting area is provided at the pad arm end which includes one or several projections and is adapted to be inserted into the mounting opening. The mounting opening is dimensionally reduced by plastic deformation of the mounting portion to such an extent that with an inserted connecting area of the pad arm end, a form-locking connection will result between the mounting portion and the pad arm.

Abstract: At least one closed container filled with neutralizing substances is arranged inside of an automatically inflatable gas cushion designed for the protection of the passengers of motor vehicles. The gas cushion is generally filled in a pyrotechnical manner by the use of gases and the release of the substances in the closed container is for the purpose of neutralizing these gases which may lead to the annoyance of the passengers when flowing into the vehicle passenger space.

Abstract: A fuse and distribution box arrangement for motor vehicles includes a printed circuit board with wiring in the form of a printed circuit, electrical fuses and spring-biased contacts for directly connecting consumers of power. The fuses include first and second contacts, the first contacts of which are directly connected to the printed circuit board, and the second contacts of which are directly connected to the spring-biased contacts which thereby connect consumers of power.

Abstract: A convertible top arrangement with a main roof column which is adapted to be displaced from a closed (up) position into an open (down) position by means of a linkage arrangement. In order for the main roof column to be moved into a position recessed within the vehicle body, the main roof column includes a lever section, on which is provided the pivot of the main roof column and a joint, whereby a first guide lever engages at the pivot and a second guide lever at the joint; both guide levers being supported at the body.

Abstract: A device for the production of a fuel vapor/air mixture for spark-ignition engines comprising a float chamber and a vaporizer chamber with heated vaporizer surface, an intake pipe being provided with a first fixed diaphragm or nozzle, the liquid spaces of the vaporizer chamber and of the float chamber being connected to each other by means of a line, the gas space of the float chamber being connected upstream of the diaphragm or nozzle, viewed in the direction of flow, and the gas space of the vaporizer chamber being connected downstream of the diaphragm or of the nozzle, viewed in the direction of flow, to the intake pipe, by means of lines in each case, and the line from the gas space of the vaporizer chamber into the intake pipe being provided with a second fixed diaphragm or nozzle, which induces a pressure drop of 85 to 99.

Abstract: An electrical energy source with a static inverter and a welding transformer (12) for a resistance welding machine comprises a first static frequency converter (10) made up of semiconductor elements, the alternating output voltage of which has a frequency and pulse shape which differ from the frequency and pulse shape of the supply voltage fed to the inverter. In this connection, the pulse shape, the amplitude, and the pulse to space ratio are to be variable within wide limits. This is attained by at least one second frequency converter (11) connected in parallel to the first frequency converter (10), wherein the alternating output voltage of the second frequency converter (11) is adapted to be added in phase synchronism to the alternating output voltage of the first frequency converter (10) in the primary circuit of the welding transformer (12).

Abstract: An installation for the control of a motor vehicle drive unit which includes a reciprocating piston engine, a hydraulically actuated clutch and a transmission. A drive pedal pick-up controls the throttle valve and therewith the engine torque by way of a first characteristic curve converter while it applies a signal by way of a second characteristic curve converter a to a control apparatus, to which is also fed at the same time the engine rotational speed n. The control apparatus forms the product a.multidot.n.sup.2 and applies the same as output signal to the electromagnetic actuating mechanism of the hydraulic clutch so that the pressure thereof and also the torque in the clutch is proportional to the product a.multidot.n.sup.2.

Abstract: A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling is disclosed. The arrangement comprises a first heat exchanger for seawater-fresh water exchange and a second heat exchanger for seawater-lubricating-oil heat exchange, and a housing within which the first and second heat exchangers are arranged. The housing includes an inlet duct, a short-circuit duct and a thermostat for fresh water. An additional thermostat and an exchange filter for the lubricating oil are provided adjacent to the first and second heat exchangers.

Abstract: A cylinder head of light metal for an air-compressing, self-igniting internal combustion engine which is provided with a vortex chamber that is delimited on the side of the main combustion space by an insert of a high heat-resistance material; the insert which preferably has an abutment collar is arranged in a stepped bore in the cylinder head bottom; a relatively high temperature is desired for the insert with the firing channel which is controlled by heat removal in particular into the cylinder head bottom; the abutment collar and the insert are spaced each exclusively within a section of the outer circumference facing a hot zone of the cylinder head bottom from the respective walls of the stepped bore; the spacing at the insert is smaller than the structural height thereof.

Abstract: A folding roof for vehicles, especially passenger motor vehicles, is detachably secured at a windshield frame and at a roll bar bridging the passenger space and is essentially composed of laterally disposed longitudinally extending girders, of a plurality of struts arranged between the longitudinal girders extending generally parallel to the girders and a flexible roof covering, connected to and supported by the longitudinal girders and the struts.In order to create a folding roof which, with lowest possible weight, has a high form rigidity, i.e., strength, and which when folded-together requires as low as possible a structural height and which is also utilizable more individually, alternately form-rigid struts and elastic struts are arranged to extend in the longitudinal direction of the vehicle in such a manner that nonreinforced sections of the covering between the struts are minimized.

Abstract: An installation for the actuation of several controllable elements with modulated pressures, whereby the elements are constructed in particular as air chambers accommodated in the upholstery of a motor vehicle seat; the installation consists of only one pressure modulator and of a distribution device series-connected therewith; the pressure modulator is adapted to be selectively connected with one or several of the controllable elements by way of this distribution device.

Abstract: The signalling device provides a signal indicating the need for a maintainance service when a limit value of a given magnitude is reached. This magnitude is a function of the total number of revolutions of an output shaft or any other rotary part and optionally of one or a plurality of additional operation parameters.

Abstract: In a turbocharged diesel internal combustion engine (10) with low compression ratio, at least one cylinder (11) operating as an engine cylinder is charged during starting and at partial load operation by several cylinders (18, 21, 28) operating as compressors. The pistons of the compressor cylinders (18, 21, 28) lead the piston of the engine cylinder (11). As a result thereof, the engine cylinder can be charged during its compression stroke. The compressor cylinder (28) which by reason of its large angular ignition spacing to the engine cylinder cannot feed directly into the engine cylinder, delivers its supplied air at first to another compressor cylinder (18) which is located more favorably. Only thereafter, the air of the two compressor cylinders (18 and 28) is fed in common and in parallel with a further, possibly also favorably located compressor cylinder (21), to the engine cylinder (11).

Abstract: A surface heat-exchanger body for vehicles, aircrafts or ships, with an interconnected heat pipe-channel system which is hermetically closed and arranged distributed over an area; as a result of a separate line-shaped heat source which extends along the heat-exchanger body and which may be formed by a heating channel, a heating rod or the like, heat is supplied to the heat-exchanger body which is distributed and given off by the heat pipe-channel system to the adjoining space with a slight temperature drop inside of the heat-exchanger body; for a horizontal installation of the heat-exchanger body, intersecting or star-shaped channel sections are provided inside of the heat pipe-channel system which always return the condensate to the condensate collector independently of the direction of the resultant of gravity and inertia forces; the condensate collector may be constructed in the form of a closed annular line either concentrically on the inside of the surface heat-exchanger body or along the outer edge; to