With your 'd' pulley fixed to the wall it still works, but when I tried it that way I was surprised at how much harder it was to raise the washing, and then you have to wind up all the slack onto the cleat (Actually I had a similar problem with window blinds, where the slack went right down to the floor and was a pain to wind on to the cleat. The 'solution' there was to use 2 cleats and wind round the outside of both.)
Only if that is the way you arrange it to be: as I said, I would put a loop in a convenient part of the pull up line so that you just lowered to that loop and hooked it on the cleat with the washing line at a convenient hight for you to hang the washing without dangling it on the ground.
So the fixed side always stays same height but its
If you made the pull up line long enough, but unless you are into skipping or limbo dancing, I don't see any reason to. The less 'spare' line you have to wind up each time you hoist the washing, the better, I'd say.
Yes but it's connected through P to d, not fixed *to* P
Our nomenclature is getting a bit fuzzy here: the pull up line runs
*around* the pulley wheel of P. The eye of Pulley P itself is attached to the wall (With a nice sturdy 'vine eye'). It is *connected* to the eye on pulley d at one end and can be fixed at various points to the cleat c depending on how high and low you want the washing line limits.Do you attach that to cleat C as well.
Yes: you set a couple of handy loops to tie off at your preferred low and high points.
In which case
Yes: That being the point of the exercise: much less winding, and more leverage from 2 pulleys than you get from 1. (And with the modern coated line you don't have to worry too much about it breaking, so you have more left over for tying up the roses.)
To do that you would need a pulley at the post and at c, and d would have to be a double pulley, with one wheel for each half of the loop, because you are effectively replacing 1 line with a parallel loop. And you might find it a bit fiddly tying the loop ends in a way that didn't get stuck in the pulleys somewhere.
Unless you are intending to hang your washing over a river or road, I think it is easier to walk up and down the line. However, you will no doubt have seen street scenes where the washing is pulled back and forth across the street between the houses, by such means. And after all, if you want to see what complex things you can achieve with pulleys, take a look at a sailing boat!
Who'd have thought there could be so much to say about fixing a washing line!
S