摘要:
A closed-cycle breathing equipment and gas mask for operation under pressure with a pressurized air source for respiratory air and with an air bag being under prestress during the inspiration phase includes an arrangement where the prestress is decreased by a control element recognizing the expiratory phase and so as to support respiration during the expiration phase. A pneumatic control valve is used which can switch connections between the inspiration and the expiration phase and which is directly controlled by the difference between the exhalation pressure and the pressure in the air bag. The control valve connects the pressurized air source with the air bag during the inspiration phase and during the expiration phase it interrupts the connection due to the occurring dynamic pressure of the pressurized air from the pressurized air source and thus actuates a pneumatic adjusting element so that the mechanical prestress at the air bag is reduced.
摘要:
A chemical oxygen generator has a chemical mixture based on an alkali-metal chlorate (NaClO.sub.3) which constitutes the charge of a cartridge having an ignition device and an oxygen outlet. This oxygen generator is improved so that the charge is insensitive to shock and so that it can be configured in any desired outer form and size and that an advancing reaction zone is assured without a further assisting device. The charge includes a tight bed of chemical pellets which lie one against the other to form the smallest possible contact surfaces.
摘要:
An aqueous finishing agent for providing fibrous materials with a soft water and oil repellent treatment is provided. The finishing agent comprisesA) 25 to 65% by weight of a perfluoroaliphatic group-bearing water/oil-repellent agent (at least 5% by weight fluorine) in dispersion,B) 10 to 35% by weight of a dispersion of an emulsifiable polyethylene (density at 20.degree. C. at least 0.92 g/cm.sup.3, acid number at least 5) andC) 25 to 40% by weight of a fluorine-free dispersion of a soft-hand extender based on a modified hydrogen alkyl polysiloxane. A process for providing fibrous materials with a soft water and oil repellent treatment is also provided. The finishing agent provides fibrous material with excellent properties which are resistant to washing and dry cleaning and a particularly smooth, soft hand.
摘要翻译:提供了一种用于提供纤维材料以进行软斥水拒油处理的水性整理剂。 整理剂包括A)25至65重量%的分散体中含全氟脂族基团的防水/拒油剂(至少5重量%氟),B)10至35重量%的可乳化的 聚乙烯(20℃下的密度至少为0.92g / cm 3,酸值至少为5),C)25〜40重量%的基于改性氢烷基聚硅氧烷的软手化剂的无氟分散体。 还提供了一种用于提供纤维材料以进行软斥水斥油处理的方法。 整理剂提供具有优异性能的纤维材料,其耐洗涤和干洗以及特别光滑的柔软手感。
摘要:
A new holder (1) for a disk-shaped information carrier, in particular for a compact disk, is described with a base support (2;21) and clamping elements (3; 17) arranged thereon and integrated therewith which extend into the central opening of the information carrier. The clamping elements (3; 17) in this arrangement are arranged surrounding a central support member (11; 18) and the clamping elements (3; 17) and support element (11; 18) are not higher than twice the thickness of the disk-shaped information carrier. Furthermore a plate-shaped support member (15) for a disk-shaped information carrier, in particular for a compact disk (32), is described which presents a recess in which a holder (1) is arranged which penetrates a central opening of the information carrier (32) detachably connecting the latter to the support member (15). The support member (15) is provided for a plate-shaped-take-up member (25) comprising a front side and a back side and containing a circular opening (27) in which the support member (15) can be fastened. The support member (15) is laid out circular and at its rim (30) is provided with retaining means (35) which engage the circular opening (27) of the take-up member (25) in order to interconnect the two elements.
摘要:
Injection device for injecting fluid from a fluid container equipped with a piston, comprising an actuating device having a rod-shaped driven member having a structured surface, a control button being movable in axial direction, and a hollow cylindrical counter component having a structured internal sleeve, said counter component matching the rod-shaped driven member and being coaxially arranged in relation to said driven member.
摘要:
Modified polyurethanes containing perfluoroaliphalic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.
摘要:
Injection device for injecting fluid from a fluid container equipped with a piston, comprising an actuating device having a rod-shaped driven member having a structured surface, a control button being movable in axial direction, and a hollow cylindrical counter component having a structured internal sleeve, said counter component matching the rod-shaped driven member and being coaxially arranged in relation to said driven member.
摘要:
Modified polyurethanes containing perfluoroaliphatic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.
摘要:
In one embodiment, a system to compensate for misalignment between a drive shaft and a driven shaft includes a coupling device secured to the driven shaft, a bore in the drive shaft for receiving the coupling device, and a securing device to fasten the coupling device in the bore while permitting lateral movement of the coupling device within the bore to compensate for misalignment between the drive shaft and the driven shaft.