摘要:
A cylinder unit for a cylinder lawn mower, comprising a fixedly mounted abutment (3), a cylinder means (2), which is rotatable about a longitudinal axis (L) and which is provided with at least one knife (6), and an insertion means (7) for engaging and inserting grass into the abutment (3), each knife (6) by rotation of the cylinder means (2) being movable to a cutting position (K), in which the knife (6) cooperates with the abutment (3) to allow grass cutting. The cylinder unit is characterised in that the insertion means (7) comprises a plurality of pins (11) with a radially outer end (12), each pin (11) being movably arranged between a first and a second position, in which first position the pin extends beyond the periphery of the cylinder means (2) so that the outer end (12) of the pin (11) is located radially outwardly of each knife (6) and in which second position the pin (11) is located inwardly of the periphery of the cylinder means (2) so that the outer end (12) of the pin (11) is located radially inwardly of or radially on a level with each knife (6), the pin (11) being arranged to take the first position in an angular range (I), seen in the direction of rotation (P1) of the cylinder means (2), immediately before the cutting position (K) and the second position at least when passing the cutting position (K).
摘要:
The present invention relates to a chromatography ligand, which comprises Domain C from Staphylococcus protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIP) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates to a process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali.
摘要:
A rotor assembly for lawn mowing comprising at least one rotor operating at a plurality of cutting levels. The rotor assembly has an abutment structure which is arranged at least at the upper cutting levels and has supporting points adjacent to the rotor to keep grass upright while being cut by the rotor.
摘要:
A device for mowing, comprising a rotatable shaft (6) and a plurality of supporting structures (7) arranged along the shaft (6), each of which structures supports a plurality of circumferentially arranged and radially extending blades (8), each of which blades exhibits a radially extending blade edge (9) which extends to the free blade end (10) and which, on rotation of the aforementioned shaft (6), are arranged for mowing. Each blade edge (9) is angled in relation to a blade plane extending perpendicularly in relation to the aforementioned shaft (6) at an angle (a) of less than 45°, and the free blade ends (10) of the blades (8) in each of the aforementioned supporting structures (7) are distributed between at least three blade positions (KP) that are mutually separated in the axial direction.
摘要:
A cylinder unit for a cylinder lawn mower has a cylinder rotatable about a longitudinal axis and provided with at least one knife, and an insertion device for engaging and inserting grass into a fixed abutment. Each knife by rotation of the cylinder is movable to a cutting position, in which the knife cooperates with the abutment to allow grass cutting. The insertion device has a plurality of pins with a radially outer end. Each pin is movably arranged between a first position wherein the pin extends beyond the periphery of the cylinder so that the outer end of the pin is located radially outwardly of each knife and a second position wherein the pin is located inwardly of the periphery of the cylinder so that the outer end of the pin is located radially inwardly of or radially on a level with each knife.
摘要:
The present invention relates to a chromatography ligand, which comprises Domain C from Staphylococcus protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIP) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates to a process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali.
摘要:
The present invention relates to a chromatography ligand, which comprises Domain C from Staphylococcus protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIP) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates to a process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali.
摘要:
A cylinder unit (1) for a cylinder lawn mower, comprising a fixedly mounted abutment (3), a cylinder means (2), which is rotatable about a longitudinal axis (L) and which is provided with at least one knife (6), and an insertion means (7). Each knife is (6) by rotation of the cylinder means (2) movable to a cutting position (K), in which the knife (6) cooperates with the abutment (3) to allow grass cutting, and the insertion means (7) is by rotation of the cylinder means (2) arranged for engaging and inserting grass into the abutment (3). The insertion means (7) comprises a plurality of discs (5), which are concentrically arranged about and equidistantly arranged along said longitudinal axis (L).
摘要:
A method for producing at least one capillary in a moldable material. The capillary has a large length in relation to its cross-section. A closed cavity is created within the moldable material and the material is stretched in at least one direction so that the cavity forms a substantially elliptical or parabolic capillary whose length is large in relationship to its cross-section. The material may be heated before stretching so that the cavity is expanded and shaped into an essentially spherical form. Suitable materials for the practice of the invention include glass, plastic, quartz, silicon, or metal.
摘要:
A device for dressing a grinding wheel with an outer profile with the radius R.sub.1 comprises a dressing roller having a circular dressing profile with the radius R.sub.2. In order to admit dressing of grinding wheels with different profile radii R.sub.1, the dressing roller and the grinding wheel can be moved so in relation to each other that the relative motion has the shape of a circular arc with the radius R.sub.2 -R.sub.1, the radius being adjustable in order to obtain the desired profile radius of the grinding wheel.