Abstract: A device for dispensing adhesive on a substrate comprises a writing head with a first dispensing nozzle and at least one second dispensing nozzle. The device can be operated in two operating modes and is configured to perform the following steps for the change from the one operating mode to the other operating mode: —lifting of the writing head, retracting or extending a pin, and lowering of the writing head to a predetermined working altitude, wherein the tips of the dispensing nozzles reach a substantially similar altitude above the substrate in the retracted state of the pin, and wherein the tip of the at least one second dispensing nozzle reaches a higher altitude above the substrate than the tip of the first dispensing nozzle in the extended state of the pin.

Abstract: A device for dispensing adhesive on a substrate comprises a writing head with a first dispensing nozzle and at least one second dispensing nozzle. The device can be operated in two operating modes and is configured to perform the following steps for the change from the one operating mode to the other operating mode: lifting of the writing head, retracting or extending a pin, and lowering of the writing head to a predetermined working altitude, wherein the tips of the dispensing nozzles reach a substantially similar altitude above the substrate in the retracted state of the pin, and wherein the tip of the at least one second dispensing nozzle reaches a higher altitude above the substrate than the tip of the first dispensing nozzle in the extended state of the pin.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons.

Abstract: Unit with at least one plate made of a material, which material is permeable to thermal radiation, such as glass ceramic, glass, ceramic or a similar material, as a surface for cooking, frying and/or keeping warm. The unit with at least one plate is on a frame construction with different types of adjustable heat sources distributed underneath and on the plate. Some of the heat sources are distributed under the plate in the form of radiant burners and act indirectly by radiation through the plate. Other heat sources are located above the level of the plate in the form of open atmospheric or atmospheric pressure gas burners and transmit heat directly by producing open flames. The respective heat sources correspond to the cooking, frying and/or warming positions.

Abstract: An apparatus for applying an adhesive pattern to a chip mounting surface by means of an adhesive dispensing head movable in z, y, and z dimensions, contains a first carriage, which is movable in x and y dimensions using first and second actuators. A second carriage with a dispensing head is movable in the z dimension, perpendicular to the chip mounting surface, on a guide mounted on the first carriage. A third actuator is provided with a positioning motor mounted in a stationary manner and an auxiliary carriage displaceable in the z direction. The auxiliary carriage, driven by the positioning motor, runs in a stationary guide. The auxiliary carriage has a positioning surface parallel to the chip mounting surface and a stop, the stop kept in constant contact with the positioning surface. Preferably, this contact is a gliding contact retained by a spring. The apparatus has good dynamic properties which make possible a rapid "drawing" of adhesive patterns with a high degree of precision.

Abstract: The invention is directed to an arrangement for adjusting a pressure-fluctuation free supply of gas and for controlling an operating pressure of an air/gas mixture to a radiation-gas burner of a gas cooking apparatus. The radiation-gas burner has a burner chamber and is mounted in a housing below a cover plate. The arrangement includes a gas supply conduit connectable to a gas source for receiving the gas and a pressure controller is mounted in the gas supply conduit for controlling the pressure of the gas to a constant operating pressure of at least 2.5 mbar above atmospheric pressure. A control unit is connected to the pressure controller for receiving the pressure-controlled gas and for metering the gas to the radiation-gas burner. The control unit includes a valve block having at least one exchangeable nozzle adapted to the type of gas from the gas source and a feed conduit has a clear cross-sectional area and communicates with the burner chamber. The feed conduit has an inlet opening adjacent the nozzle.

Abstract: Unit with at least one plate made of a material, which material is permeable to thermal radiation, such as glass ceramic, glass, ceramic or a similar material, as a surface for cooking, frying and/or keeping warm. The unit with at least one plate is on a frame construction with different types of adjustable heat sources distributed underneath and on the plate. Some of the heat sources are distributed under the plate in the form of radiant burners and act indirectly by radiation through the plate. Other heat sources are located above the level of the plate in the form of open atmospheric or atmospheric pressure gas burners and transmit heat directly by producing open flames. The respective heat sources correspond to the cooking, frying and/or warming positions.