摘要:
A device for aligning contact feet extending from the edge of an integrated circuit (IC) component has a toothed adjusting tool whose prongs are moved in the gaps between the contact feet. When the adjusting tool moves upward in the direction of the Z axis, a first adjusting plate, located below the prongs and overlapping the gaps between the prongs, comes into contact with the contact feet, which are thereby bent upward. When the adjusting tool is subsequently moved downward, a second adjusting plate, located above the prongs, comes into contact with the contact feet and bends all of them downward to a nominal size.
摘要:
A sheave which can be used to transmit motion to belts or chains or as an inertial damper has an input element which can be driven by the output shaft of an internal combustion engine in a motor vehicle, an output element which is rotatable relative to the input element and can drive one or more belts or chains to transmit motion to one or more fans, pumps and/or other aggregates in a motor vehicle, and a damping unit which is installed between the input and output elements in an annular chamber defined by a housing which forms part of the input element and/or the output element. The damping unit employs long arcuate coil springs which alternate with the arms of a flange forming part of the input element or of the output element, and with pockets provided on the housing and forming part of the output element or of the input element. One or more antifriction bearings are installed between the input and output elements.
摘要:
Aromatic copolyamides are described which are soluble in organic polyamide solvents and which comprise the recurring structural units of the formulae Ia, Ib, Ic and Id[--OC--R.sup.1 --CO--NH--R.sup.2 --NH--] (Ia),[--OC--R.sup.1 --CO--NH--R.sup.3 --NH--] (Ib),[--OC--R.sup.1 --CO--NH--R.sup.4 --NH--] (Ic),[--OC--R.sup.1 --CO--NH--R.sup.5 --NH--] (Id)in whichR.sup.1 and R.sup.2 are mainly unsubstituted divalent aromatic radicals, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position with respect to one another,R.sup.3 is a radical of the formula II ##STR1## R.sup.4 is a radical of the formula III--Ar.sup.1 --O--Ar.sup.1 --O--Ar.sup.1 -- (III), andR.sup.5 is a radical of the formula IV and/or V ##STR2## in which Ar.sup.1 has one of the meanings defined for R.sup.2, Y is hydrogen, a halogen atom, a lower alkyl group or a lower alkoxy group and X is a halogen atom, a lower alkyl group or a lower alkoxy group and the molar proportions of recurring structural units Ia, Ib, Ic and Id are fixed within selected limits. Shaped structures composed of the copolyamides according to the invention are distinguished by good mechanical properties.
摘要:
There are described aromatic copolyamides which are soluble in organic polyamide solvents and which consist essentially of recurring structural units of the formulae Ia, Ib and Ic on the one hand and Ia, Ib and Ie on the other[--OC--R.sup.1 --CO--NH--R.sup.2 --NH--] (Ia), [--OC--R.sup.1 --CO--NH--R.sup.3 --NH--] (Ib),[--OC--R.sup.1 --CO--NH--R.sup.4 --NH--] (Ic), [--OC--R.sup.1 --CO--NH--R.sup.7 --NH--] (Ie),where R.sup.1 and R.sup.7 are divalent aromatic radicals whose valence bonds are in the para or a comparable coaxial or parallel position relative to one another, R.sup.2 is a radical of the formula III ##STR1## and R.sup.3 and R.sup.4 are radicals of the formula IV ##STR2## where Z is --O--, --S--, --CO--, --SO.sub.2 --, C.sub.1 -C.sub.10 -alkylene or --O--R.sup.1 --O-- and R.sup.6 is in each case hydrogen or an inert substituent.The mole fractions of the individual structural features in the copolyamides are defined within selected limits. The claimed copolyamides are notable for good dynamic efficiency.
摘要:
An electrical apparatus useful to prepare a hot beverage from a flavor substance. The flavor substance is prepacked in single serve portions as filter units which include a filter carrier, a filter, a flavor substance and an upper closure. The apparatus has a storage tank for a liquid, a volumetric measurement tank, venting pipes that join the top corners of the volumetric measurement tank with the top section of the storage tank, a heater for the liquid and a shower head. A shut-off valve controls the flow of liquid between the storage tank and the volumetric measurement tank. The heater controls the flow of liquid from the volumetric measurement tank to the shower head. The apparatus allows the liquid to pass from the shower head through the upper closure of the filter unit so that liquid may pass through the flavor substance in the filter to form the beverage.
摘要:
A colorant formulation is described for mass-coloring high-melting polyesters. It comprises colorant and support for the colorant. The colorant formulation has a recrystallization exotherm of 8 to 55 joule/g between 210.degree. C. and 150.degree. C.
摘要:
The invention relates to a buffer storage for a flat web material (2), having at least two roller registers (3, 4) comprising a plurality of freely rotating rollers (11, 12) and displaceable relative to each other at least in one axis direction radial to the axis of the rollers (11, 12), for forming variable partial lengths or loops of the flat web material (2) between the rollers (11, 12) of the roller register, having at least one piston-cylinder arrangement (8), the cylinder chamber (10) thereof being able to be acted upon by a compressible pressure medium, such as compressed air, and acting like a pressure or gas spring between the at least two roller registers (3, 4) for generating a web tension of the flat material (2) guided through the buffer storage, and having a control device for applying a constant or substantially constant operating pressure of the pressure medium to the at least one piston cylinder arrangement (8).
摘要:
A machine-actuating mechanism cleaning card includes a substrate having a central plane between opposed surfaces, a machine direction dimension between opposed end edges and a transverse direction dimension between opposed side edges. The opposed surfaces each have a plurality of discrete raised areas arranged in transversely extending rows. At least some of the discrete raised areas in at least some of the transversely extending rows extend outwardly on each side of the central plane. The discrete raised areas each include a peak and a peripheral wall joined at one edge to the peak and having an opposed edge that is closer to the central plane than the peak. The cleaning substrate has an effective thickness that is greater than the nominal thickness. Methods of making cleaning cards also are part of the invention.
摘要:
A cleaning card for cleaning internal surfaces of a machine-actuating mechanism includes a substrate having a central plane between opposed surfaces thereof, a machine direction dimension defined between opposed end edges and a transverse direction dimension defined between opposed side edges. The opposed surfaces each have a plurality of discrete raised areas providing a plurality of transversely extending rows of discrete raised areas. At least some of the discrete raised areas in at least some of the transversely extending rows extend outwardly on each side of the central plane. The discrete raised areas each include a peak and a peripheral wall joined at one edge to the peak and having an opposed edge that is closer to the central plane than the peak. The cleaning substrate has an effective thickness between the opposed surfaces that is greater than the nominal thickness between those surfaces. A method of making a cleaning card includes dampening a substrate of the cleaning card with a fluid, embossing the dampened substrate to provide a plurality of discrete raised areas with elastic memory. Another method of making a cleaning card includes heating a cleaning card substrate during embossing to provide discrete raised areas with elastic memory, either with the substrate dampened or dry.