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Audible warning device - above and below water
A friend of mine showed me an audible warning/attention device that
works off the direct feed hose of a BC. The trouble is that he
bought it out in Australia and doesn't know any details of it except
what is actually marked on the device.
It's called a Mini Hammer Head and there is a logo of a hammer head
shark on it (what a surprise). It is effective above and below the
water, producing a type of warbling noise. It appears to operate by
pulsating a ball bearing against a metal disk. Its about 90 mm long
and 35 mm in diameter, black with a yellow O-ring that the air
escapes from. I've attempted to draw it in ASCII:-
Direct
Feed
|
\/
_ O-Ring
| | _
-------------------------| |------
| | | |
| _ | | |
| |_| | | | <-- Metal Disk
| | | |
| | | |
-------------------------|_|------
| |
| |
---
|
\/
To BC
Basically I want one and would appreciate any information anyone has.
I have not seen it in the UK at all, so I'm expecting to have to have
it shipped over. I also believe that there is a bigger brother of
this unit suitable for boat use.
Any Info. greatly appreciated.
Ken
====================================================================
Ken Gould E-Mail: Gould_K_Ken@BT*.bt*.co*.uk*
BT Laboratories, B81/261 Telephone: +44-1473-645380
PP47, Ipswich, UK, IP5 7RE Facsimile: +44-1473-645605
====================================================================
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