1. Spoked bicycle wheel consisting of a hub, which is connected by means of spokes under tension to a ring shaped rim, with an unequal number of spokes on the two sides of the wheel, in the case of which the center plane of the anchoring points of the spokes in the rim is laterally displaced from the center plane of the hub flanges or from the center plane of differently constructed anchoring points on the sides of the hub (F), characterized in that
the number of spokes, which from the hub on that side of the center plane of the rim (M) lead in the direction towards the rim, on which a higher sum of the tensions of these spokes is present and the number of spokes, which from the hub on the opposite side of the center plane (M) of the rim lead in the direction towards the rim, on which a lower sum of the tensions of the spokes is present is at a mutual ratio of 3:1 or 5:2 or 2:1 or 7:4 or 5:3 or 3:2 or 4:3.
2. Spoked bicycle wheel according to claim 1, characterized in that
the spokes number ratio of 3:1 or 5:2 or 2:1 or 7:4 or 5:3 or 3:2 or 4:3 diverges by zero to plus or minus 50 percent from the ratio of the dimensional values c:d, which are measured on the hub used and are possibly corrected when calculating c:d by means of the measures described in claims 11, 12 or 13, whereby:
c is measured between the radial center plane of the axes of the spokes anchored in the hub, which spokes are lead from the hub on that side of the center plane (M) of the rim in the direction towards the rim where a lower total tension of these spokes is present, in the locations, where the spokes leave the hub and have only just reached the direction towards the rim and the radial center plane of the axes of all the spokes anchored in the rim, in those locations, in which the spokes leave the rim and have just reached the direction towards the hub and
d is the analogue value to c on the opposite side of the center plane (M) of the rim where a larger total tension of the spokes anchored in the hub is present, whereby the ratio of the average tension of the spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the average tension of the spokes, which lead from the hub in the direction towards the rim on the other side of the center plane (M) of the rim diverges by zero to plus or minus 50 percent from the ratio 1:1.
3. Spoked bicycle wheel according to claim 1 or 2, characterized in that
the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is in the ratio of c:d, whereby
the average tension of the spokes which lead from the hub on the one side of the center plane (M) of the rim in the direction towards the rim and the average tension of those spokes which lead from the hub on the other side of the center plane (M) of the rim in the direction towards the rim is at a ratio of 1:1.
4. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 3:1.
5. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 5:2.
6. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 2:1.
7. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 7:4.
8. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 5:3.
9. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 3:2.
10. Spoked bicycle wheel according to claim 1 or 2 to 3, characterized in that the number of spokes, which from the hub on the one side of the center plane (M) of the rim lead in the direction towards the rim and the number of those spokes, which from the hub on the other side of the center plane (M) of the rim lead to the rim, is at a ratio of 4:3.
11. Spoked bicycle wheel according to claim 1 or one of the claims 2 to 10, characterized in that it comprises a rim, in which the center plane of the anchoring points of the spokes in the rim is laterally displaced from the center plane (M) of the rim.
12. Spoked bicycle wheel according to claim 1 or one of the claims 2 to 11, which comprises conventional hub flanges with spoke holes running in parallel to the axis of the wheel and conventional spokes bent at their ends and comprising a spoke head, characterized in that all spokes anchored in the flange are inserted into in the direction of only one flange side, whereby different combinations of these directions can be formed on a wheel.
13. Eccentrically spoked bicycle rear wheel according to claim 1 or one of the claims 2 to 12, characterized in that it comprises a rear wheel hub, in which the distance between the center planes of the hub flanges or between the center planes of otherwise designed anchoring points of the spokes on the sides of the hub (cd), amounts to 58 or more millimeters.
14. Spoked bicycle wheel according to claim 1 or one of the claims 2 to 13, characterized in that it comprises a sticker on the hub andor on the rim with an inscription of a suitable text, which draws attention to the unaccustomed and for the spoking and centering of the wheel important arrangement of the spokes on the sides of the wheel.
15. A bicycle with at least one spoked wheel according to claim 1 or one of the claims 2 to 14.
16. Method for the standardization of the spoke tensions in the case of eccentrically spoked bicycle wheels, in which the average tension of the spokes, which from the hub on that side of the center plane (M) of the rim lead in the direction towards the rim, where a greater overall tension of the anchored spokes is present, is equalized to such an extent as is desired with the average tension of those spokes, which from the hub on the opposite side of the center plane (M) of the rim lead in the direction towards the rim, where a lower overall tension of the anchored spokes is present, in that the hub on the individual sides of the center plane (M) of the rim is equipped with a correspondingly unequal number of anchored spokes.
17. Spoked bicycle front wheel consisting of a wheel hub, which by means of spokes is connected with a ring-shaped wheel rim under tension, with identical number and tension of the spokes on both wheel sides, characterized in that all spokes, which lead from the wheel hub on one side of the center plane (M) of the rim in the direction towards the rim leave the spoke holes circle in a direction more or less tangential to the spoke holes circle and all spokes which lead from the hub in the direction towards the rim on the other side of the center plane (M) of the rim also leave the spoke holes circle in a direction more or less tangential to the spoke holes circle, however in the opposite circumference direction of the wheel.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A continuous casting nozzle for the flow of steel from a tundish into a casting mould; said nozzle, if described in a vertical position and considered in a forward movement of the liquid steel from the top downwards, comprising a vertical conduit including an upper base at an upper end having an inlet orifice for receiving the liquid steel from the tundish and a lower base at a lower end having at least one outlet orifice; said conduit comprising, in its upper part, a distributing member arranged substantially at the inlet of said vertical conduit and comprising a dome to deflect the liquid steel entering the nozzle; said nozzle further comprising means for injecting a gaseous, liquid or finely divided solid material under said dome into an inner zone within said conduit; characterised in that the dome of said distributing member is provided with means for separating the liquid steel into two jets, which separately enter the casting mould.
2. The nozzle according to claim 1, characterised in that the dome of said distributing member has at least four passages and in that said passages are interconnected in such a way as to divide the flow of the liquid steel into two separate jets, respectively, flowing through the inner zone to be mixed with the material injected under the dome and an outer zone towards the casting mould.
3. The nozzle according to claim 1, characterised in that the outer zone emerges towards the casting mould by means of at least two lateral orifices, and in that the inner zone emerges towards the casting mould by means of at least one orifice.
4. The nozzle according to claim 3, characterised in that the liquid steel passing under the dome in the zone in which gaseous, liquid or finely divided solid material is injected, is channelled into the inner zone and flows into the casting mould through said at least one orifice.
5. The nozzle according to claim 3, characterised in that the liquid steel passing under the dome in the zone in which gaseous, liquid or finely divided solid material is injected, is channelled into the outer zone and flows into the casting mould through said at least one orifice.
6. The nozzle according to claim 1, for the flow of steel from a tundish into a casting mould; said nozzle, if described in a vertical position and considered in a forward movement of the liquid steel from the top downwards, comprising a vertical conduit including an upper base at an upper end having an inlet orifice for receiving the liquid steel from the tundish and a lower base at a lower end having a first outlet orifice; said conduit having, in its upper part, a distributing member arranged substantially at the inlet of said vertical conduit and comprising a dome to deflect the liquid steel entering the nozzle with a vertical wall connecting a bottom of the dome and extending as far as the lower base of said conduit, said vertical wall having at least two lateral outlet orifices, the distributing member dividing the vertical conduit into two physically separated zones, an inner zone and an outer zone; said nozzle further comprising means for injecting a gaseous, liquid or finely divided solid material under said dome into the inner zone; characterised in that the dome of said distributing member is provided with means for separating the liquid steel into two jets, a first jet flowing into the inner zone and entering the casting mould through said first orifice and a second jet flowing into the outer zone and entering the casting mould through the lateral orifices.
7. The nozzle according to claim 1, characterised in that the vertical conduit is cylindrical in shape and has a circular or oval cross-section.
8. The nozzle according to claim 1, characterised in that it comprises means for enabling said finely divided solid material injected under the dome to be in suspension in a non-oxidising gas.
9. The nozzle according to claim 1, characterised in that it is conformed so that a finely divided solid material with a particle size of less than 2000 \u03bcm can be injected under the dome.
10. The nozzle according to claim 9, characterised in that the particle size of said finely divided material is between 100 and 300 \u03bcm.
11. The nozzle according to claim 1, characterised in that it is configured so that the two jets have different flow rates.
12. The nozzle according to claim 1, characterised in that the vertical conduit is provided with means for regulating the temperature of the liquid steel flowing through said conduit, comprising a first means for regulating the temperature of the liquid steel flowing in the part ahead of the distributing member comprising the dome and a second means for regulating the temperature of the liquid steel flowing in the part after said dome.
13. The nozzle according to claim 12, characterised in that said first means and said second means for regulating the temperature are different.
14. An installation for the continuous casting of steel, comprising a tundish provided with an outlet orifice and a flow-regulating device, a casting mould and a nozzle according to claim 1, said nozzle enabling a steel of mixed composition to be cast in the casting mould, starting from a molten base steel in the tundish.
15. A method for the continuous casting of steel, comprising the following steps:
casting molten base steel from a tundish through an outlet orifice provided with a flow-regulating element in a nozzle comprising a distributing member having a dome and a vertical wall dividing the nozzle into an inner zone and an outer zone;
separating the base steel in the distributing member into an inner jet flowing through the inner zone and an outer jet flowing through the outer zone;
injecting a gaseous, liquid or finely divided solid material under said dome into the inner zone and mixing said material with the base steel of the inner jet in order to form a steel of different chemical composition from the base steel;
flowing the outer jet of base steel through lateral apertures in the nozzle and solidifing said jet along the walls of the casting mould; and
flowing the inner jet of steel of different chemical composition through a lower aperture in the nozzle and solidifying the inner jet in center of the casting mould.