The message
from "Steve Walker" contains these words:

Roger Mills wrote:
In an earlier contribution to this discussion,
Jay Hendry wrote:

Hi

Not sure if this is the best group but does anyone know a UK dealer
for the above - they are at www.roperatchet.com?

A Petzl Ascender would do the job, eg eBay 120133093026. There's a
few used
ones listed on ebay, you'd probably get one for a tenner. They're
built to
hang people off, and very widely trusted to do that, so you know the
quality's there.

I don't think an ascender would suit. They are just the modern
equivalent of the old fashioned prusik loop and, like the prusik loop,
you need to take the load off in order to move up the rope.

The roperatchet is a Merkin product and won't necessarily have an
importer in the UK.

I have an old ratchet operated puller that I have used as a car engine
hoist but I can't find the instructions and after 20 years or more that
might not still be available. The label is uninformative with no note of
the manufacturer. It was apparently called a Mini Hand Puller but an
internet search didn't find that particular product.

In the situation described by the OP the puller would have to be
operated from above.

What would also work would be my even more ancient pulley hoist which
would need to be tied off in order to take a break. The other
disadvantage of that is because of the 6/1 ratio you can't actually lift
anything very far without supporting the load and reducing the
connecting rope. The puller OTOH, even if used with the wire doubled to
give a 2/1 lifting ratio has more than sufficient wire to lift through
one storey.

--
Roger Chapman