| 摘要 |
A jointed stand especially for dial gauges, uses a single control element for locking all of the members of the stand in position relative to all other members, the members include at least a pair of arms interconnected at a swivel assembly at which a pair of conical disks engage eccentric rings connected to slide rods which run through the arms and axially displace socket members receiving balls by which a holder and a base are jointed to the arms. |
