Abstract: The present invention relates to a single or multi layered food packaging on the basis of plastics wherein the layer or at least one of the layers comprises at least one metal with antimicrobial activity and wherein at least part of the metal with antimicrobial activity is present in finely divided metallic form and the remaining part is present in form of a salt.

Abstract: The present invention relates to a single or multi layered food packaging on the basis of plastics wherein the layer or at least one of the layers comprises at least one metal with antimicrobial activity and wherein at least part of the metal with antimicrobial activity is present in finely divided metallic form and the remaining part is present in form of a salt.

Abstract: The present invention relates to a thermoforming apparatus (1) for producing shaped bodies (114) of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities (112). The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it. The guide means (42) in accordance with the invention for the first time include a rotatable guide rail assembly (40) whereby the lower tool table (32) may be guided rectilinearly and rotated together with it.

Abstract: The present invention relates to a thermoforming apparatus (1) for producing shaped bodies of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities. The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it. In accordance with the invention, the upper tool table (28) for the first time includes associated drive means (26) for adjusting the upper tool table (28) in its position relative to the upper dead point of the lower tool table (32) in correspondence with the respective shaped body to be produced.

Abstract: Thermoforming apparatus for producing shaped bodies of plastic sheet, and a method for producing them The present invention relates to a thermoforming apparatus (1) for producing shaped bodies of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities. The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it.

Abstract: The present invention relates to a thermoforming apparatus (1) for producing shaped bodies (114) of plastic sheet (50), such as cups, containers, lids, secondary packagings for foodstuffs or the like, which comprises a forming station with a two-part forming tool (20). The two-part forming tool (20) comprises an upper tool table (28) adapted to be adjustably fixed and having an upper tool (30) with pre-stretch means (92) movably mounted therein, and a movable lower tool table (32) having a lower tool (34) with cavities (112). The movable lower tool table (32) is guided through the intermediary of guide means (42) and capable of being approached to the upper tool table (28) and moved away from it. The guide means (42) in accordance with the invention for the first time include a rotatable guide rail assembly (40) whereby the lower tool table (32) may be guided rectilinearly and rotated together with it.

Abstract: A hearing aid has a microphone, an amplifier and a receiver and at least one frequency-defining element in series with a switch connected to the amplifier. For telephone listening, the switch is closed and the frequency-defining element lowers the high frequencies in the incoming signal from the telephone receiver so that a comfortable tone results for the hearing-impaired person using the telephone. The frequency-defining element may be a part of a frequency-dependent voltage divider, a part of a frequency-dependent negative feedback circuit, or a component in a resonant circuit.

Abstract: A device and method for temporarily maintaining a voltage level in a control circuit for auxiliary devices in a textile spinning machine, winding machine or the like wherein the control circuit is connected to an intermediate direct current circuit that is in series between a line voltage and the drive motors of the machine. The method includes reversibly supplying current from the intermediate circuit to the motors and inversely supplying current generated by the residual inertial energy of the motors to the intermediate circuit. The supplying of reversible current is controlled in response to a drop in line voltage to maintain the voltage level of the intermediate circuit and therefore of the control circuit supplying auxiliary devices. The controlling includes sensing a drop in line voltage and generating and transmitting control signals to reversibly supply current.

Abstract: A open-end spinning assembly includes a silver insertion device, a fiber separating device, a fiber guide device, a fiber collector for collecting, aligning and imparting a rotational movement onto fibers and subsequently applying the fibers to an open yarn end, and a draw-off device drawing-off yarn from the yarn collector. A fed-back yarn end is applied to a piecing fiber quantity fed into fiber collector for forming a piecer. The yarn is continuously drawn-off from the fiber collector and fibers and continuously fed into the fiber collector. A method for monitoring the piecers includes automatically measuring diameter values relative to the longitudinal axis of the yarn for the piecer and for yarn lengths upstream and downstream of the piecer having at least substantially the length of the piecer. The diameter values are electronically stored in memory and compared with comparison values for producing a comparison result.

Abstract: An exemplary embodiment comprises an acoustic signal pickup, amplification and reproduction sections wherein the latter contains a plurality of sound sources which influence a shared sound transmission arrangement collecting the sound, influencing it upon formation of a specific transfer characteristic. Given such hearing aids, the originally set frequency characteristic should also be maintained given the maximally attainable output level. To this end, the disclosure provides two identical sound sources, proceeding from which the generated sound is supplied to the ear with specific adaptation to a particular individual hearing loss. For example, the desired transfer characteristic is achieved by establishing selected differential transmission properties for the respective acoustic channels leading from the respective sound sources to the shared passage leading to the ear. An inventively improved hearing aid is particularly suitable for employment as a hearing prothesis for hearing-impaired persons.

Abstract: Method for controlling a thread joining process having several thread joining steps and occuring by starting a rotor of an open end rotor spinning machine, which includes choosing a narrow limited rotor speed range for the beginning of a starting process of a specific thread joining step, which occurs after a first thread joining step, and selectively starting and finishing thread joining steps in substantially constant given intervals before and after the beginning of the starting process, and an apparatus for carrying out the method.

Abstract: A memorial for a grave or a multigrave cemetery plot has a polyhedral rectangular parallelepipedal body composed of sheet metal, e.g. aluminum, mounted upon a base and having a removable cover by which access can be afforded to the interior of the body for storing grave-maintenance equipment or plant-supplying water therein.

Abstract: A portable childbirth chair including a base having a seat portion and two leg portions extending outwardly therefrom, two leg supports, each one being hingedly attached to a different one of the leg portions, two footrests each one being adjustably attached to a different one of the leg supports, adjustment straps for adjusting the inclination of the leg supports relative the base, a backrest hingedly attached to the seat portion, a backrest support frame extending from the seat portion, and a pair of backrest adjustment rods pivotally attached to the backrest at one end and having other ends adapted to engage apertures formed along the backrest support frame so as to adjust the inclination of the backrest relative the base. The chair may be compactly collapsed for easy shipment and storage by telescoping the backrest support frame into the base, and folding the backrest and the two leg supports over the base. The chair also includes electronic monitoring apparatus.

Abstract: Method of controlling a thread-joining operation in a rotor-spinning machine having a rotor formed with a fiber-collecting channel, wherein a pulse proportional to the rotary speed of the rotor is applied to control a measure of the material being processed in the spinning operation which includes automatically controlling advance feeding into the rotor of a quantity of fiber required for thread-joining and feeding the fiber beginning with withdrawal of a thread formed for the fiber as well as returning into the rotor the thread end to be joined and withdrawing the joined thread from the rotor during start-up of the rotor, the automatic control being in accordance with a quantity proportional to the peripheral velocity of the fiber-collecting channel of the rotor serving as control input variable for at least one of the fiber feed, the thread withdrawal, the beginning of the advance feeding and the beginning of the returning of the thread end, and device for carrying out the method.