| 摘要 |
<p>Transporter is simple and practial, and has spindles a movable frame and holders. It is cheap and entirely automatic. Preferably, a spindle is passed within the feed of a screen and a holder at the spindle base or several holders distributed along each spindle. The holder acts as a cam and cooperates with a special screen's feet. Loading and unloading of the screens is by a simple elevation of the screen or descent of the transporter.</p> |
