| 摘要 |
<p>A mechanical compensator for the horizontal angular error of the playing arm of a record player. A lever is mounted upon and rotatable in a horizontal plane about a first bearing affixed to the base frame of the record player, the lever carrying a second bearing journalling a vertical shaft upon which the playing arm is mounted for joint rotation therewith. As the vertical shaft rotates during the second-tracking movement of the playing arm and the vertical shaft, a member affixed to the shaft is caused by a cam track to rotate the lever about the first bearing. The member affixed to the shaft may be a second lever having a cam follower which cooperates with a fixed cam, or the member affixed to the shaft may be a plate having a cam track therein which cooperates with a fixed cam follower.</p> |
