A game call or the like whistle which includes a housing member with a mouthpiece and two air chambers with one of the air chambers having a constant volume and the other air chamber having a variable volume containing therein a piston arm for changing the volume of the variable chamber. The game call is formed by the cooperation of a top portion and a bottom portion which when placed together form the two air chambers and mouthpiece with a common wall separating the two chambers.

Disclosed is a bird call particularly adapted for use by hunters in calling ducks. It has a tapered or slanted mouthpiece so that the call may be held in a vertical downward direction with the callers head almost perfectly erect. In this way, the flight of most birds may be watched as the caller is actually using the call. A tongue with a flared groove in the device reduces back pressure and moisture build up in the call.

A game call having a sounding board covering the sounding chamber of a sound block to facilitate in the production of tones imitating the call of a wild turkey. The call is composed of two sections interfitted so that the vibratory peg extending from the sound block rests securely on a groove machined on the front and of the sound box for compact carrying and protection from damage.

Traffic simulator for tandem exchange testing. The simulator comprises a calling side module (CAM) to simulate a calling exchange, with facilities for the selection of dialling information, type of test operation and signalling code and connected to the tandem exchange (CT) at an i/c circuit terminating equipment (JA) of a type suited to the selected signalling code; answering side module (CAV) to simulate a called exchange, connected to the tandem exchange at an o/g circuit terminating equipmen...

A game call, operable to simulate an elk call, including a whistle having a longitudinal bore and a top vent and provided with a mouthpiece and a hollow open-ended tube of flexible material in fluid communication with the bore of the whistle. The flexible tube is preferably attached to the whistle by means of an adapter which is mateable with a second adapter attached to the free end of the flexible tube to protectively enclose the whistle. The two adapters, when mated, form a convenient handle ...

Automatic telephone answering equipment is disclosed which is associated with a telephone set connected to a switching system along with other telephone sets, and the answering equipment functions with central message recording equipment which is also connected to the switching system. Unanswered incoming calls originating from within or without the switching system are answered by the automatic answering equipment which then transfers the call to either another of the telephone sets or to the m...

The wildlife call comprises a tapering cylindrical horn and a reed assembly including a reed cylinder being engageable with the interior of the small terminal end of the horn and being divided by a transversely disposed wall having a suitable hole, a semicircular reed block having a flat portion and a chamfer on the flat portion at one of its terminal ends, and having a rectilinearly disposed groove in the flat portion, a reed locking means and a reed. The reed locking means and reed are operabl...

A moose call with a tubular hardwood mouthpiece for passage of air to vibrate the low frequency reed, an elongate tube extending from the front of the mouthpiece and having an end ring providing sound reflective surfaces to cause reverberation of sound in the elongate tube and producing an output sound simulating the mating call of a moose.

A double reed game call is provided in which the reeds are aligned in series and are actuated simultaneously by an airstream. The call includes a barrel, a first keg and a second keg which are positioned in series. Each keg includes a reed assembly which is air actuated. The kegs are interchangeable to produce differing sounds.

A game call includes a support member having a base with an upwardly extending flange around a perimeter thereof, defining a substantially U-shaped cross section. Ribs extend upwardly from the base to a height less than that of the flange. The base includes a plurality of apertures. A first planar member is adapted to be affixed to the distal ends of the ribs. A second planar member is adapted to be affixed to the distal end of the perimetric flange. A tool is provided for vibrating the second p...