| 摘要 |
<p>This invention provides a rod receiver for arresting the downward passage of a rod and delivering it to its destination in suitable condition for testing which comprises a ventilated rod receiver chamber (202) having an entrance (204) through which a rod can drop longitudinally into the chamber (202), pneumatic cushion means (214) for pneumatically cushioning and arresting downward passage of a rod through the chamber (202) and having means for activating and deactivating the pneumatic cushion, and an exit (218) through which a rod can drop longitudinally to its destination on deactivation of the cushion means (214).</p> |
