摘要:
Polyalkylene terephthalates which contain a fluorinated polyolefin in addition to a polymer having a glass transition temperature of less than -30.degree. C., are very tough, exhibit good stability to thermal shaping and hardness, and have a high modulus of elasticity and improved stress/strain behavior.
摘要:
Polyalkylene terephthalates which contain small quantities of aliphatic polycarbonate show improved fracture behavior, without a significant adverse effect on the strength and the flowability in the melt. Moreover, the compositions show improved behavior in hot-air ageing.
摘要:
A generator including a double-chamber lock comprising two tapered or vertical chambers lined with ceramics or plastics, as a charging device, at least one tubular shaft furnace comprising a water-cooled double jacket of steel, a double-walled, water-cooled inlet nozzle of copper for a gasification mixture, arranged centrally in the tubular shaft furnace above the base, a dry dust-removing device, and optionally a desulfurising device. The double-chamber lock has a mechanism which causes one of the chambers to open when the lower chamber of the double-chamber lock is flushed with inert gas after charging/opening operations, and the inlet nozzle constitutes the mixing member for the constituents of the gasification mixture, the inlet nozzle has a radius of curvature of the surface of the cylindrical portion of the nozzle which continuously becomes smaller to the outlet opening, and the direction of flow of the gases leaving the inlet nozzle is directed upwards.
摘要:
This invention relates to crystalline, thermoplastic moulding compounds of polyphenylene sulphide (PPS) and aliphatically saturated carboxylic acid esters. The moulding compounds have increased tracking resistance.
摘要:
Block copolyesters based on polyalkylene terephthalates which contain polyene blocks show an extremely low deformation even when they are processed into thin articles. They still have a crystallinity which is decreased by less than the ratio corresponding to the polyene portion.
摘要:
The present invention relates to a rope tightening device for space defining nettings of three-dimensional frameworks. It is therefore the object of the present invention to propose a rope tightening device for space defining nettings used by children for playing which is practically invisible in the playing areas within said three-dimensional frameworks and avoids the risk of injuries, respectively, without affecting the tightening of the nettings. This object is achieved by a rope tightening device for space defining nettings of a three-dimensional framework wherein rope parts of the space defining nettings are connected to the junction point members of a supporting frame to which frame the space defining netting is attached, the rope tightening device according to the present invention being characterized in that a rope receiving part (6, 6a) is arranged, by means of a tightening screw (10), on an inner surface or an outer surface of a hollow junction point member (1) or on an outer surface of a solid junction point member, respectively, wherein said rope receiving part (6, 6a) is movable in the direction of the tightening motion, and that the rope parts (3) of the space defining netting which is to be tightened are fixable within the rope receiving part (6, 6a).
摘要:
The invention relates to molding compounds of polyarylene sulfides (PAS), preferably polyphenylene sulfides (PPS), which have a low ion content and delayed crystallization and to their use as an encapsulating compound for active and passive electronic components.
摘要:
A reference signal corresponding to a predetermined state in the operation of a four-cycle internal combustion engine and especially an internal combustion engine with an odd number of cylinders, is produced by combining the pulses from a pulse generator responding to the position of the crankshaft and emitting an indicator signal with a signal generator, e.g. of the Hall generator type, which emits an H signal during a first angle range of the cam shaft which rotates at one half the speed of the crankshaft and a zero signal during the second angle range with the positions of the first angle range and the second angle range so selected that the indicator signal alternately appears during the H and zero signal. An AND gate receiving both sets of signals generates the reference signal at its output when the input is coincidentally triggered by both an indicator signal and an H signal.
摘要:
The invention relates to a rope-tensioning device for rope networks. The object of the invention is to develop a tensioning device, in particular for rope networks, with a tensioning mechanism which is arranged outside of areas accessible to players and which is covered completely or to a significant part. Maintenance of the tensioning device and operation of the tensioning mechanism should not be limited. The rope tensioning device for rope networks of the invention is characterized by a rope tensioner for rope networks arranged to the greatest extent possible inside a short section of pipe (pipe section). Advantageously, a pipe element with the rope tensioner can be combined with different framework elements, such as support masts, center masts, framework nodes and mounting devices located close to the ground.
摘要:
The invention relates to a rope game device with an outer frame and with ropes rigged within the outer frame forming a spatial net and which are attached in a tensionable manner to specific node points of the outer frame. The invention has the object, to provide a new rope game device, which displays a distinct “fullness” of the spatial net and which manufacture has distinct technological and cost advantages compared to known devices. The object is solved by a rope game device, having an outer frame (1) and ropes, within the outer frame (1) and forming a spatial net (12) and which are attached in a tensionable manner to specific node points (2) of the outer frame (1), characterised in that the outer frame (1) has an icosahedron shape and the edges and the corners of the icosahedron shape are formed as frame elements (4) having the form of an equilaterial triangle comprising rods (3) and the node points (2), and that one or more hollow ball modules (11, 12), arranged within one another and having the spatial form of a truncated icosahedron, are arranged within the outer frame (1) and retained on the same in a tensionable manner.