摘要:
The invention concerns a measuring apparatus for checking and determining the flow shear stress of certain suspensions, principally blood, by a static or dynamic method and to thereby plot the viscosity of the suspension. The apparatus employs an internal measuring chamber comprised of a passage arrangement to simulate the natural microcirculation area wherein a network of capillary passages diverge from a main passage, with at least two of the capillary passages of different lengths, with a length ratio that can range from 3:1 to 15:1, with those capillaries connected to a source of variable pressure and extending past a detector unit.
摘要:
An apparatus for determining the viscosity of fluids, particularly blood plasma, includes an outer housing including a front surface having a groove therein; a disposable capillary tube removably mounted in the groove and including at least one loop, each of the loops having two substantially horizontal branches including an upper branch and a lower branch for flowing the fluid under the influence of gravity through a predetermined path, and a device for measuring the rate of flow of the fluid along the path in one of the horizontal branches. Also disclosed is a flexible disposable capillary tube for the fluid viscosity measuring apparatus.
摘要:
The present invention relates to a method for testing different selected materials and/or surface structures for the culture of cells and/or microorganisms.
摘要:
A printer having a carriage guided for movement along a platen and supporting a wire matrix printing element includes means for changing the distance between the printing element and the platen an amount to facilitate paper feeding and an additional amount for paper insertion.The means of changing the distance between printing element and platen includes an electric motor driven in accordance with a stored program which determines motor acceleration characteristics.
摘要:
A wire matrix print head is configured for detachable mounting in a complementary shaped support and held thereto by a spring device which urges the complementary surfaces of the head and its support in secure contact with one another.
摘要:
The present invention relates to a method for testing different selected materials and/or surface structures for the culture of cells and/or microorganisms, said method comprising the following steps: i) providing a plurality of different selected materials and/or surface structures to be tested in the form of beaker-shaped inserts, wherein the beaker-shaped inserts are dimensioned in such a way that a beaker-shaped insert can be inserted in a substantially accurately fitting manner into a well of a multiwell plate suitable for cell culture, wherein each beaker-shaped insert has walls, a base, and an opening in the side facing away from the base, wherein the walls and base of the beaker-shaped inserts are liquid-tight, and wherein each beaker-shaped insert has a selected material and/or a selected surface structure, at least on the inner face of the base; ii) inserting the beaker-shaped inserts into wells of multiwell plates of appropriate dimensioning so that the outer face of the beaker base points towards the inner face of the base of a well of the multiwell plate; iii) culturing the cells in the lumen of the beaker-shaped inserts, and to a kit for carrying out this method.
摘要:
The invention relates to a brake lining carrier plate 1 to hold a friction lining, especially for installation into a vehicle brake system, with holding structures 15, 16 for the friction lining arranged in rows 6 on the lining side 2, whereby each holding structure 15, 16 has a protrusion 3 and a depression 4, whereby the protrusion 3 is made when the depression 4 is formed in the surface 5 through the displacement of material. Said protrusion 3 engages with the friction lining. The holding structures 15, 16 in the rows 6 are arranged in such a way that there is a protrusion 10 at the beginning 8 and at the end 9 of each row 6. In one embodiment, the rows 6 run essentially crosswise to the longitudinal axis 7 of the brake lining carrier plate 1.
摘要:
The invention relates to a brake lining carrier plate 1 to hold a friction lining, especially for installation into a vehicle brake system, with holding structures 15, 16 for the friction lining arranged in rows 6 on the lining side 2, whereby each holding structure 15, 16 has a protrusion 3 and a depression 4, whereby the protrusion 3 is made when the depression 4 is formed in the surface 5 through the displacement of material. Said protrusion 3 engages with the friction lining. The holding structures 15, 16 in the rows 6 are arranged in such a way that there is a protrusion 10 at the beginning 8 and at the end 9 of each row 6. In one embodiment, the rows 6 run essentially crosswise to the longitudinal axis 7 of the brake lining carrier plate 1.
摘要:
A wire matrix print head having print wires subject to wear at their printing ends are biased by return springs against one side of one end of armatures, the other sides of which bear against a gap adjusting ring. The other end of each of the armatures is spaced by a predetermined gap from the pole piece of associated electromagnets which, when energized, drive the armatures about pivots intermediate the ends of the armature against the bias of the return springs. The ends of the armatures are formed with a step on the side initially placed in contact with the drive end of a print wire so that when the print wires are worn the armatures can be flipped over to present the unstepped side in contact with a drive wire with the result that upon movement of the adjusting ring to restore the gap between the armature and pole piece the print wires are pushed to a rest position closer to the printing plane by the depth of the step.
摘要:
A device for machining protrusions, teeth, burrs, crimps and the like in a brake lining carrier plate has a tool unit (51; 61, 61′) with several tool elements (53; 62, 62′) with cutting teeth. During the crimping procedure, the unit is moved towards a first axis (54) and towards a second axis (55) running perpendicular thereto, whereby the first axis (54) coincides essentially with the surface normal of the brake lining carrier plate. Forced-control means arranged between the compressing part (52) and the tool unit (51; 61, 61′) move the tool unit (51; 61, 61′) towards the first axis (54). Forced-guidance means move the tool unit (51; 61, 61′) towards the second axis (55). The tool elements (53; 62, 62′) of the at least one tool unit (51; 61, 61′) are arranged in a fixed position relative to each other.