On Mar 28, 1:35 pm, wrote:
Do the maths. You can't do this for workshop pressures and store a
useful amount of energy in a bottle small enough to be portable. For
anything smaller than a zeppelin, you get two nails and it's flattened
again.

Well. I have to say.. You were right

I managed to find a supplier of 'adaptors' and after shelling out £6
for a couple of parts to convert my bottle thread to one suitable to
fit my quick fit connector. I assembled the puzzle of parts with
copious amount of PTFE and connected it to my compressor.

I opened the tap, heard the air going in, removed it and connected my
air blower tool.. When I pulled the trigger, I litterally got a single
PUFF!! Nothing more than a long breath of air blown from your mouth.

I was clearly wrong about this.. A 1/2L bottle is not nearly big
enough to give any amount of air worth talking about.

My decision now is simply to scrap the idea as stupid, or seek out a
slightly larger bottle (perhasp 2L+) and try again!

Jon

I'm sure I've seen what look more like 2L divers emergency air bottles
and they must contain more than a long breath of air.