Whistle with several chambers

A whistle (1) as claimed in any one of the preceding claims in which the chamber having a moveable element (4c) associated therewith is a trill chamber.

A whistle (1) as claimed in any one of the preceding claims provided with a plurality of pea-less chambers (5,6).

A whistle (1) as claimed in any one of the preceding claims provided with a moveable element (4c) in the form of a rotatable member (4′a), rather than a pea, said member (4′a) being a roller or sleeve, or in which said moveable element (4c) comprises a flap or a membrane, which membrane may be curled.

A whistle (1) as claimed in any one of the preceding claims in which the moveable element (4c) is of plastics.

A whistle (1) as claimed in any one of the preceding claims able to produce a loud versatile multi-frequency sound.

A whistle (200) as claimed in any one of the preceding claims in which the sound characteristic is adjustable, variable or differently presettable.

A whistle (1) substantially as herein described with reference to FIGS. 1 to 3 of the accompanying drawings or when modified substantially in accordance with FIG. 4 or FIG. 5 of the accompanying drawings.

A whistle (1) substantially as herein described with reference to FIGS. 6 to 8 of the accompanying drawings.

A whistle (1) or sound generator having a sound characteristic, or a sound characteristic, substantially as shown as that of prototype No.9 in FIG. 10a of the accompanying drawings or which is more like that of prototype No.9 than that of Tornado 2000 No.7, or of Acme Thunderer (small) No.7.

A whistle (1) substantially as herein described with reference to FIGS. 11a and 11b, or 12a and 12b, or 13a, 13b and 13c of the accompanying drawings.

A whistle (1) having a pea-less chamber (5,6) and a chamber (4) with a moveable element (4c) associated therewith, the arrangement being such that the chambers (4, 5, 6) can be sounded substantially simultaneously by the user.

A sound produced or substantially producible by a whistle (1) as claimed in any one of the preceding claims or substantially similar to said sound.

A sound produced or substantially producible by a whistle (1) having at least one pea-less chamber (5,6) and at least one chamber (4) including a moveable element (4c) associated therewith, said sound being produced or substantially producible by blowing into said chambers (4, 5, 6) simultaneously.

A whistle (1) or sound generator adapted to produce an effective sound of about 70 to 84 dBA at a flow rate of about 12 to 13 liters/second with a sound of 11 dBA or above at a flow rate of about 120 liters/second or above.

A whistle (1) substantially as herein described with reference to FIGS. 11a and 11b, or FIGS. 12a and 12b, or FIGS. 13a, 13b, 13c of the accompanying drawings.