| 摘要 |
A windowed housing attracts an animal to feed confined with a feed reservoir, but a limb set across the window frustrates the animal's attempt to access the feed. Pawing or pulling at the obstructing limb rotates a rod which opens a feed gate to discharge the feed into an underlying feed chamber. An opening in the chamber gives the animal access to the discharged feed, but release of the limb, to access the chamber-received feed, allows the feed gate to close.
|
