Abstract: A cartridge can comprise a first elastomeric membrane and a second elastomeric membrane, and portions of the elastomeric membranes which are sealed to each other can circumscribe unsealed portions of the membranes. In a resting state, the unsealed portion of the first elastomeric membrane abuts or is proximate to the unsealed portion of the second elastomeric membrane. One or more reagents can be injected between the unsealed portions of the first and second elastomeric membranes to push the unsealed portions apart from each other in this region of the membranes. The unsealed portions can be sequentially pushed apart in downstream regions to form a channel between the elastomeric membranes. Positively displaced fluid pushes the unsealed membrane portions apart to a volume that conforms to the volume of the fluid to minimize or prevent dead volume in the channel and thus minimize or prevent air bubbles in the fluid.

Abstract: A cartridge can comprise a first elastomeric membrane and a second elastomeric membrane, and portions of the elastomeric membranes which are sealed to each other can circumscribe unsealed portions of the membranes. In a resting state, the unsealed portion of the first elastomeric membrane abuts or is proximate to the unsealed portion of the second elastomeric membrane. One or more reagents can be injected between the unsealed portions of the first and second elastomeric membranes to push the unsealed portions apart from each other in this region of the membranes. The unsealed portions can be sequentially pushed apart in downstream regions to form a channel between the elastomeric membranes. Positively displaced fluid pushes the unsealed membrane portions apart to a volume that conforms to the volume of the fluid to minimize or prevent dead volume in the channel and thus minimize or prevent air bubbles in the fluid.

Abstract: A method and an apparatus are described for the production of a mitered corner joint between parts of a frame, by vibration welding. During the welding procedure, in each case two parts of a frame are displaced by oscillatory heads into mutually perpendicular straight-line translatorial oscillations, the phases of which have been matched to one another in such a way that mitered areas of the two parts of the frame oscillate perpendicularly with respect to a stationary mitered plane and through the same, while the mitered area is retained under a prescribed welding pressure in the system. The method and the apparatus can be used for the simultaneous production of the four corner joints of a frame, in particular of a frame of the moveable or fixed part of windows or of doors. For this, at least four, and preferably eight, oscillatory heads, which displace the parts of the frame into the translatorial oscillations, are synchronized in such a way that their frequencies and amplitudes are the same.

Abstract: A method and an apparatus are described for the production of a mitered corner joint between parts of a frame, by vibration welding. During the welding procedure, in each case two parts of a frame are displaced by oscillatory heads into mutually perpendicular straight-line translatorial oscillations, the phases of which have been matched to one another in such a way that mitered areas of the two parts of the frame oscillate perpendicularly with respect to a stationary mitered plane and through the same, while the mitered area is retained under a prescribed welding pressure in the system. The method and the apparatus can be used for the simultaneous production of the four corner joints of a frame, in particular of a frame of the moveable or fixed part of windows or of doors. For this, at least four, and preferably eight, oscillatory heads, which displace the parts of the frame into the translatorial oscillations, are synchronized in such a way that their frequencies and amplitudes are the same.

Abstract: Next to a window opening (4) an inlet air pipe (14) and an exit air pipe (17) are arranged vertically a distance apart in an outer insulation (1), each of which connect an outer inlet air opening (15) and an outer exit air opening (18), respectively, to an inner inlet air opening (13) and an inner exit air opening (16), respectively, which are located in a depression (12) of a cladding (9) into which a fan (19) is inserted with a back. It connects the inner inlet air opening (13) via an inlet air channel to an inlet air outlet (21) and the inner exit air opening (16) via an exit air channel, which, together with the inlet air channel, forms a heat exchanger, to an exit air entrance (22). The exit air entrance (22) and the inlet air outlet (21) are arranged one on top of the other and a distance apart on the front of the fan (19). Instead of the fan (19), a closure plate (23) can also be inserted into the depression (12).

Abstract: There is described a novel modification of the dye of the formula ##STR1## which is characterized by the data given in claim 1. This novel modification is suitable in particular for dyeing wound packages of polyester materials under HT conditions, materials dyed in a golden-yellow shade being obtained.

Abstract: By the slow stepwise heating up of an aqueous suspension of the crystallographically amorphous dye of the formula ##STR1## which dye is unstable to dyeing, to a temperature of 90.degree.-100.degree. C. with a halting point at 40.degree.-60.degree. C., this dye can be transformed completely into the crystalline .alpha.-modification.The novel dye modification can be easily converted, without increase of viscosity, into thinly liquid formulations which are readily pourable, which form no sediment, and which are excellently suitable for producing printing pastes, for example for printing polyester fabric.

Abstract: By suspension of the melt of the known crystallographically amorphous dye of the formula ##STR1## which is unstable to dyeing, in water at a temperature of 90.degree. to 130.degree. C., this dye can be caused to crystallize. There is obtained a crystalline granulate in which the dye is completely in the novel .epsilon.-modification.The novel dye modification is stable in dispersion under dyeing conditions, and has no tendency to flocculate.

Abstract: It is possible by heating at temperatures of between 65.degree. and 200.degree. C. to convert the known .alpha.-modification of the azo dye of the formula ##STR1## which is unstable to dyeing, completely into the .beta.-modification which is stable to dyeing. The modification transformation can be performed either with the solid dye or with a suspension thereof in an organic, preferably aromatic, solvent.The novel dye modification is stable in dispersion under dyeing conditions, and shows no tendency to flocculate.