| 摘要 |
An improved means for adjustably securing a bead-loosening shoe to its drive cylinder is disclosed. The securing means includes a channel shaped tube, secured to the cylinder, and a mating connector, secured to the shoe. A pair of locking apertures in the connector are selectively aligned with a pair of adjustment apertures in the channel shaped tube to set the stop position of the shoe at the full extension point of the cylinder.
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