Abstract: Cable insulation having high resistance to the formation or growth of water trees and high aging resistance consists of an ethylene polymer (I) and from 0.5 to 20% by weight of an ethylene polymer (II), which is an ethylene/C.sub.1 -C.sub.8 -alkyl-C.sub.3 -C.sub.6 -alkene carboxylate/C.sub.3 -C.sub.6 -alkenecarboxylic acid terpolymer.

Abstract: High density ethylene polymers are prepared by polymerizing the monomers in the presence of a Ziegler catalyst system by a process in which the resulting solid ethylene polymer is reacted in the melt with an additive capable of binding acids by esterification. The ester-forming additives are preferably epoxide compounds.

Abstract: Shelf suspension member for shelf arrangements that install easily and quickly on sash windows without tools or fasteners by engaging into existing window structures and by being supported by or suspended from such structures in cantilevered manner, which is convenient in use, low in cost and attractive in appearance, which does not appreciably obstruct daylight, and which permits opening of at least a part of the window without removal of the arrangement.

Abstract: In an electric high voltage cable of 1-500 kV, the cable insulation is resistant to the formulation or the growth of water trees and consists of from 70 to 99 parts by weight of an ethylene polymer (I) and from 1 to 30 parts by weight of an ethylene copolymer (II) which is composed of from 80 to 92% by weight of ethylene and from 8 to 20% by weight of a C.sub.4 -C.sub.10 -.alpha.-olefin having a density of from 0.890 to 0.915 g/cm.sup.3 and a crystallite melting point of from 90.degree. to 125.degree. C.

Abstract: An oscillatory support for drum washing machines having a horizontal axis of rotation comprises a washer unit (1) supported on a base plate (4) via at least two spring struts (2) disposed at either side of the vertical plane passing through the axis of rotation. The spring struts (2) are elastically articulated at one end on the base plate (4) and on the other end are articulated with their respective tappets (13) on the washer unit (1). In order to provide support means which are simple in design and easily mounted and which have good oscillatory and damping properties, the spring struts (2) are articulated at both ends by means of a plug connection to the base plate (4) and the washer unit (1), respectively.

Abstract: In a lockable elevating mechanism for the continuous adjustment of chair seats, table tops or the like, a guide sleeve (1), attachable to a pedestal (4), and a length-adjustable lockable gas spring (8) are proposed, the piston rod (10) of which is connected axially fixed but detachable with the bottom of the guide sleeve (1). The housing (9) of the gas spring (8) can be connected axially fixed, but basically detachable, with a chair seat or the like by means of an upper fastening segment (21) seated in corresponding collar (22). An activating rod (26) extends upwardly from the housing (9). In order to easily detach the gas spring (8) from the chair seat or the table top, the housing (9) of the gas spring (8) is disposed radially fixed in an additional tube (20) having the fastening segment (21), wherein one end of the housing (9) axially rests against a stop in the area of the fastening segment (21) and wherein the other end rests against a fastening element (24), detachably connected with the tube (20).

Abstract: An adjustable-length column for chairs, tables or the like has an upright tube and a gas spring disposed in it. The piston rod of the gas spring is supported against a bottom plate of the upright tube. To assure support of the bottom plate in the face of extremely strong forces in the axial direction of the column at little manufacturing expense, the rim of the upright tube is bent inward approximately semicircularly in cross section. The bottom plate is supported on the end face of this rim.

Abstract: A frictional damper, in particular for washing machines with spinning action, comprising a circular cylindrical housing and a tappet which is coaxially displaceable inside the housing and extends out of it with one end, the other end being provided with an approximately cylindrical friction piston. The friction piston has at least one friction coating made of an elastically resilient material and is provided with a grease chamber open towards the inner wall of the housing. In order to prevent a loss of damping because of a change from lubricated to dry friction, an extension tube is formed on the end of the tappet which is inside the housing which, together with an adjoining bracing flange and the inner wall of the housing, defines a grease collecting chamber.

Abstract: A gas spring has a cylindrical housing and a piston rod mounted coaxially within it and sealingly extended out of same. The piston rod has a tapering cooperating with a seal in its pushed-in position. The seal is designed to be radially resilient and has an axially-operating radially resilient supporting ring which has webs extending parallel with the axis elastically movable radially to the axis, against which the seal applies. The purpose of this design lies in reducing the thrust force of the gas spring when the piston rod is pushed in, which should result at the same time in a reliable sealing in all operational positions.

Abstract: A frictional damper has a tubular housing and a slide which is guided slidably in this housing in the direction of its longitudinal axis. In the area of its end on the slide exit side, the housing is provided with a damping lining which bears against the slide. In order to achieve the setting and maintaining of constant frictional conditions, which can if necessary be varied from one frictional damper to another, at low cost, the damping lining is arranged in a separate damping housing which is inserted into the tubular housing from the end on the slide exit side and is fixed axially at this point in the direction of its longitudinal axis. In an otherwise identical housing and slide the damping housing and/or the damping lining can each have a different design.

Abstract: A compartment in a housing has a wall serving as a pressure diaphragm in communication with the contained fluid to be measured. A measuring element with a spherical cap is arranged in the compartment for the uniform transmission of pressure to electrically responsive pressure sensitive means on the measuring element. The measuring element contacts the pressure diaphragm at virtually only a single point. The diameter of the measuring element and, accordingly, of the compartment which includes the measuring element, can be considerably reduced, so that the mechanical strength of the pressure sensor is increased.

Abstract: A lockable elevating mechanism for the continuous adjustment of chair seats or the like comprises a guide tube, in which a length-adjustable, lockable gas spring is slidably guided. The piston rod of the gas spring is connected to the bottom plate of the guide tube. The housing of the gas spring is guided by means of a guide sleeve in the guide tube, the guide sleeve having a central carrying tube, in which slide sleeves are arranged with space. The carrying tube is surrounded by a carrying sleeve held in the guide tube. Thus a gas spring is obtained, on the one hand, which is free of bracing, resistant to wear and with good sliding qualities, and, on the other hand, the manufacturing of the guide sleeve is favorable in terms of material expenditure.

Abstract: A gas spring substantially comprises a cylindrical housing, closed on one end, and a piston rod located concentrically in it and extending in a sealed manner from its other end, the piston rod being provided on its end located in the housing with a piston assembly resting on the inner wall of the housing and being guided in a damped manner. In order to attain a relatively broad hysteresis, which is desirable when the gas spring is used for retaining the upper parts of sun-tanning benches or automobile hatchbacks or the like, the piston assembly has a friction damping liner resting against the inner wall of the housing and made of an expanded plastic, which is open-celled and impregnated with lubricant on its friction face resting on the inner wall.

Abstract: A piston for a piston cylinder unit, particularly a gas spring, is to be provided with a piston ring and comprises a portion extending at least from the piston ring groove to a free end and consisting of a plurality of segments separated from one another by longitudinal slots. This portion is provided with a bore the diameter of which is at the free end smaller than the diameter of the related portion of the piston rod. It is the purpose of these measures to enable simple assembly of the piston ring in the piston ring groove and at the same time to ensure reliable seating of the piston ring.

Abstract: Cable insulation having high resistance to the formation or growth of water trees and high aging resistance consists of an ethylene polymer and from 0.5 to 20 percent by weight of a styrene copolymer, which is a styrene/diene copolymer in which not less than 90% of the olefinic double bonds have been hydrogenated.

Abstract: To verify that the handset of a cordless telephone unit is still within the radio coverage area of the fixed station, rather than attempt to establish connection with the switched network and verify contact as a result of receiving a dial tone, or dialing a special number in the network, a user can merely activate a radio coverage verification circuit in the handset and fixed station. Through use of these circuits, in addition to the identification number of the station, a code is transmitted. The identification and code, when received by the opposite station, are verified with number and code values stored in that station, and the number and code are then retransmitted as an acknowledgement signal. An annunciator in the handset provides a visual or aural warning to the user if the acknowledgement signal is not received, indicating that the handset is not within the radio coverage area of the fixed station.

Abstract: The fluidic oscillator consists of a resonant fluid circuit having a fluid inertance and a dynamic fluid compliance. The inertance is a conduit interconnecting two locations of a chamber on each side of a working fluid jet issuing into one end of the chamber, the inertance conduit serving to transfer working fluid between the two locations. Through one or more output orifices located approximately at the opposite end of the chamber, the fluid exits from a chamber exit region which is shaped to facilitate formation of a vortex (the dynamic compliance) from the entering fluid. The flow pattern in the chamber and particularly the vortex in the chamber exit region provide flow aspiration on one side and surplus of flow on the opposite side of the chamber, which effects accelerate and respectively decelerate the fluid in the inertance conduit such as to cause reversal of the vortex after a time delay given by the inertance.

Abstract: The fluidic oscillator consists of a resonant fluid circuit having a fluid inertance and a dynamic fluid compliance. The inertance is a conduit interconnecting two locations of a chamber on each side of a working fluid jet issuing into one end of the chamber, the inertance conduit serving to transfer working fluid between the two locations. Through one or more output orifices located approximately at the opposite end of the chamber, the fluid exits from a chamber exit region which is shaped to facilitate formation of a vortex (the dynamic compliance) from the entering fluid. The flow pattern in the chamber and particularly the vortex in the chamber exit region provide flow aspiration on one side and surplus of flow on the opposite side of the chamber, which effects accelerate and respectively decelerate the fluid in the inertance conduit such as to cause reversal of the vortex after a time delay given by the inertance.

Abstract: A fluidic oscillator includes a chamber having a common inflow and outflow opening into which a jet is issued in a generally radial direction. After impinging upon the far chamber wall the jet is redirected to form a vortex on each side of the incoming jet. The vortices alternate in strength and position to direct outflow through the common opening along one side and then the other of the inflowing jet. A spray-forming output chamber is arranged to receive the pulsating outflows from the aforementioned or other fluid oscillator and establish an output vortex which is thereby alternately spun in opposite directions. An outlet opening from the output chamber issues fluid in a sweeping spray pattern determined by the vectorial sum of a first vector, tangential to the output vortex and a function of the spin velocity, and a second vector, directed radially from the vortex and determined by the static pressure in the chamber.

Abstract: A fluidic oscillator includes a chamber having a common inflow and outflow opening into which a jet is issued in a generally radial direction. After impinging upon the far chamber wall the jet is redirected to form a vortex on each side of the incoming jet. The vortices alternate in strength and position to direct outflow through the common opening along one side and then the other of the inflowing jet. A spray-forming output chamber is arranged to receive the pulsating outflows from the aforementioned or other fluid oscillator and establish an output vortex which is thereby alternately spun in opposite directions. An outlet opening from the output chamber issues fluid in a sweeping spray pattern determined by the vectorial sum of a first vector, tangential to the output vortex and a function of the spin velocity, and a second vector, directed radially from the vortex and determined by the static pressure in the chamber.