摘要:
An arrangement for the sterile, aseptic production and/or filling of pharmaceutical products contains a housing which, with the exception of an inlet and an outlet with a clearly defined cross-section, is closed in an airtight manner. Through the air inlet air is forced via a filter into the interior of the housing. The air passes out of the housing through the air outlet or channels. The size of the cross-section of the air outlet and the performance of the ventilating device are matched in such a way that within the interior of the housing there is a laminar unidirectional or combined airflow and a constant overpressure with respect to the pressure outside the housing.
摘要:
An anemometer with a substrate (12) comprising glass material, the length L of the substrate being considerably greater than the width B and the thickness D. The edge areas (20, 22) of the substrate are not substantially heated by the formation of the surface resistor.
摘要:
A dental-filling material with hardnesses exceeding 100 HV for gold-condensation is prepared from a gold-alloy powder of which the alloying components are metals resulting in hardening gold alloys and which are simultaneously soluble in nitric acid. A rough, pure gold layer on the surface of the powder particles is obtained by treatment with nitric acid.
摘要:
Powder of a ductile, mouth resistant metal such as silver, platinum, palladium, aluminum, or titanium, or an alloy thereof, or a cold weldable, mouth resistant synthetic resin, such as a polyacrylate or methacrylate, polycarbonate or polysulfone is worked to a paste with a plastic organic binder which liquifies at 20.degree. to 45.degree. C. This paste is hardened in the tooth cavity by ultrasonic action.
摘要:
A meterial well-suited for gold fillings in tooth cavities consists of a porous sintered compact which is prepared from platelet-shaped gold powder produced by chemical precipitation and which exhibits a pore volume of 80 to 90%.
摘要:
Gold powder is inserted in a cavity for the production of fillings in teeth by means of filled gold and this is subsequently hardened mechanically. The moisture sensitivity of this process can be avoided by using a paste made of platelet shaped gold powder with a plastic, organic binder which liquifies at 20.degree. to 45.degree. C. and the mechanical hardening is carried out with ultrasonic.
摘要:
An article of jewellery, especially in the shape of a butterfly or insect has two attachments, one for each end of a chain or a string. The attachments are fixed to the free ends of inherently rigid wires, the other ends of said wires being fastened to a body of said article of jewellery in such a way that they articulate freely with said body. An eye or sleeve encircling each one of said wires and being slideable along these wires is fixed to one end of an elongated part of a pair of such elongated parts, the other ends of the latter being fastened to the body of the article of jewellery in such a way that they articulate freely with said body, the points of attachment of said elongated parts on said body being spaced apart from the points of attachment of said wires on said body. This construction allows a movement between different parts of the article of jewellery when the wearer of the article of jewellery moves, creating interesting changes in the contour of the article of jewellery.
摘要:
There is provided a means for measuring resistance for a resistance thermometer consisting of an insulating former as a carrier and a thin platinum layer as resistance material, the carrier for the platinum layer being made of a material having a greater thermal coefficient of expansion than platinum over the range between 0.degree. and 1000.degree. C.
摘要:
An article of jewellery, especially in the shape of a butterfly or insect has two attachments, one for each end of a chain or a string. The attachments are fixed to the free ends of inherently rigid wires, the other ends of said wires being fastened to a body of said article of jewellery in such a way that they articulate freely with said body. An eye or sleeve encircling each one of said wires and being slideable along these wires is fixed to one end of an elongated part of a pair of such elongated parts, the other ends of the latter being fastened to the body of the article of jewellery in such a way that they articulate freely with said body, the points of attachment of said elongated parts on said body being spaced apart from the points of attachment of said wires on said body. This construction allows a movement between different parts of the article of jewellery when the wearer of the article of jewellery moves, creating interesting changes in the contour of the article of jewellery.
摘要:
There is provided a process of producing a resistance element for a resistance thermometer consisting of a thin platinum layer on an insulating solid as a carrier, by sputtering the platinum layer on the solid in a krypton-oxygen or xenon-oxygen mixture.