Hi Joao, Bob & all
The one way device is known as a 'spray entrance' in UK, as it was used
to trap bees in the hive when spraying of chemical was imminent, that
was in the days when chemical sprays were noxious substances, the spray
entrances are still sold... The last time that I saw them was at the UK
National Honey Show a few months ago.
http://www.honeyshow.co.uk/
On sale on the Stamfordham stand.
Regards & Best 73s, Dave Cushman, G8MZY
http://website.lineone.net/~dave.cushman or http://www.dave-cushman.net
Short FallBack M/c, Build 6.02/3.1 (stable)
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