Abstract: The invention relates to a pumping system (1), in particular, for transporting gaseous and/or liquid media having two parallel hydraulically operated oscillating piston pumps (2, 3) whose pistons (8) are moved by means of electromagnetic fields, whereby the electromagnetic fields are generated in field coils (10, L1, L2) by means of half-wave direct current pulse. The invention distinguishes itself by a circuit arrangement (19) that can be connected to an alternating current source having two parallel electric branches that are connected to the field coils (L1, L2) of one of the oscillating pumps (2, 3) respectively, wherein the circuit arrangement (19) is equipped in such a way that the field coils (10, L1, L2) are operated electrically out of phase so that the oscillating piston pumps (2, 3) are operated with a phase displacement of 180°.

Abstract: The invention relates to a pumping system (1), in particular, for transporting gaseous and/or liquid media having two parallel hydraulically operated oscillating piston pumps (2, 3) whose pistons (8) are moved by means of electromagnetic fields, whereby the electromagnetic fields are generated in field coils (10, L1, L2) by means of half-wave direct current pulse. The invention distinguishes itself by a circuit arrangement (19) that can be connected to an alternating current source having two parallel electric branches that are connected to the field coils (L1, L2) of one of the oscillating pumps (2, 3) respectively, wherein the circuit arrangement (19) is equipped in such a way that the field coils (10, L1, L2) are operated electrically out of phase so that the oscillating piston pumps (2, 3) are operated with a phase displacement of 180°.

Abstract: A device (10, 10?) for checking the play of linkages of vehicles is provided and can include a first device (20) for production of oscillations, which is connected, via an extension element (30), with a contact element (40) for contacting the device (10, 10?) with the component to be tested, and a second device (50) for recording the oscillations produced in the component to be tested. A process for testing the play of vehicle linkages is also provided and can include the steps of producing oscillations with a first device (20), the oscillations being transmitted to a component to be measured via a contact element (40) which is connected via an extension element (30) with the first device (20), and recording the oscillations produced in the component to be measured with a second device (50).

Abstract: A device (10, 10?) for checking the play of linkages of vehicles is provided and can include a first device (20) for production of oscillations, which is connected, via an extension element (30), with a contact element (40) for contacting the device (10, 10?) with the component to be tested, and a second device (50) for recording the oscillations produced in the component to be tested. A process for testing the play of vehicle linkages is also provided and can include the steps of producing oscillations with a first device (20), the oscillations being transmitted to a component to be measured via a contact element (40) which is connected via an extension element (30) with the first device (20), and recording the oscillations produced in the component to be measured with a second device (50).

Abstract: The invention concerns a process and a device for measuring angles relative to the horizontal plane of elements in vehicles, with at least one laser (L) and at least one target (Z), which are located via adapters (10, 20, 30, 40) on the element to be measured in such a manner that the at least one laser (L) and the at least one target (Z) are located in one horizontal plane parallel to the plane of the element to be surveyed, wherein the adapters (10, 20, 30, 40) are designed such that the at least one laser (L) is situated parallel to the axis of the first of the two elements to be measured and the at least one target (Z) is situated perpendicular to the axis of the second of the two elements to be measured.

Abstract: The invention concerns a process and a device for measuring angles relative to the horizontal plane of elements in vehicles, with at least one laser (L) and at least one target (Z), which are located via adapters (10, 20, 30, 40) on the element to be measured in such a manner that the at least one laser (L) and the at least one target (Z) are located in one horizontal plane parallel to the plane of the element to be surveyed, wherein the adapters (10, 20, 30, 40) are designed such that the at least one laser (L) is situated parallel to the axis of the first of the two elements to be measured and the at least one target (Z) is situated perpendicular to the axis of the second of the two elements to be measured.

Abstract: Coupling for the axial coupling-in of a nipple (5) for charging or venting of a hydraulic system, comprised of:

Abstract: A flow-through meter for liquid or gaseous media including a housing through which the medium flows. A floating body is disposed within the housing for movement under the influence of a lifting force produced by an increased flow of the medium through the housing. The floating body is rigidly connected to a weight body of ferromagnetic material by a connecting rod which serves to locate the weight body in the field of an induction coil mounted within the housing. A restoring biasing member is located between the weight body and an internal collar abutment of the housing, and exerts a force on the weight body counteracting the lifting force. The meter further includes a damping piston located between the housing collar abutment and the restoring spring, and disposed for axial movement lengthwise of the connecting rod.