| 摘要 |
At adjustment point A, two discs 6 and 7 can rotate in a relatively small part of a frame surrounding their circumference, with the result that the round tube 8, which is positioned between the discs, can rotate at right angles to its longitudinal axis and can move along its longitudinal axis and, if it is not provided with a Seeger circlip ring 9, in a straight line. These adjustment features can be blocked by rotating screw 10 through one side of the frame onto disc 6, with the result that it is clamped against the other side of the frame via tube 8 and disc 7. And at adjustment point B, by means of a shaft 11 which is mounted at right angles to tube 8 and over which, at the ends, bolts 12 and 13 can rotate and can be blocked by means of clamping screws 14. <IMAGE>
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