Abstract: The animal trap of the present invention includes a housing having a top wall, a bottom wall, a closed rear end, and a door opening at the forward end. A door is hinged at the upper edge of the door opening and is adapted to swing downwardly by gravity from an open position to a latched position. A trip treadle is located near the rear end of the trap and is connected by a rod to the door. When the animal depresses the trip treadle, the rod releases the door so the door can fall from its open to its closed position. A latch mechanism is connected with the door which causes the door to automatically latch and be held in its closed position whenever the door falls by gravity from its open to its closed position. The latch may be opened without exposing the operator's hand to the vicinity of the cage, thereby making it safer to release the animal.

Abstract: A rotary printer comprising a wheel having a generally cylindrical surface, and a pair of relatively thin cylindrical ring members slidably positioned side-by-side on the wheel for carrying a series of type members. A clamping member is provided on the wheel for clamping the ring members with the type members therebetween against an abutment on the wheel thereby locking the ring members to the wheel and the type members to the ring members.