| 摘要 |
<p>An animal trap specific to a given range of animal weights includes a spring arm 14 mounted to swing from a horizontal position in which it is retained by trip lever 35 to an upwardly extending position to which it is spring biassed. The arm carries means 17 for entraining a cable 19 having a loop 64 placed to surround lever 35. A spring 43 urges lever 35 to its position retaining arm 14 horizontal whereby animals below a set weight do not spring the trap. A connection 65 is included in the cable and gives under a sufficient force to allow an animal heavier than the upper weight limit to escape. <IMAGE></p> |
