Oxygen-fuelled lifting device found after little time - not long? (3-4)

'oxygen-fuelled lifting' is the definition.
I know nothing about this answer so I can't judge whether this works.

'device found after little time not long?' is the wordplay.
I cannot quite see how this works, but
'time' could be 't' (abbreviation) and 't' is present in the answer.
'not' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
'device' could be 'winch' (winch is a kind of device) and 'winch' is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?