| 摘要 |
A device is disclosed for plumbing a vertical spindle on a textile machine wherein the machine has a rail that traverses up and down to distribute yarn along the length of a textile yarn carrier that resides around the spindle during normal operation. The device includes an elongated cylindrical member having a longitudinal bore therein that snugly fits about a spindle. A collar is positioned around the cylindrical member and is vertically adjustable therealong. The collar has initial spindle adjustment means such as one or more pins depending downwardly therefrom, whereby once the device is positioned over a loosened spindle, the pin engages a traverse rail ring that surrounds the spindle and automatically biases the spindle into approximate plumb (a condition perpendicular to the traverse rail and in the center of the ring) to within a few thousandths of an inch. An adjustable indicator is also provided that can be moved up and down the length of the spindle and can be rotated around the spindle to indicate a particular position where the spindle is out of plumb and also the magnitude of deviation. The device may also be equipped with an internal bearing surface which permits use of the device on a rotating spindle. Furthermore, the device may optionally include a spirit level positioned in the top of the cylindrical member and also an extensible stop to prevent the device from rotating with the spindle.
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