I'm thinking...if the moving block is below the fixed block (which is mostly normal)...then- in order for the hauling part to travel same direction as load (or upwards in most cases)....I contend that, in most cases, an advantage is impossible...unless...hauling part.. goes thru a single pulley affixed on a tangent, beside the fixed block...which would,technically, put us back to a disadvantage....
MY QUESTION...keeping in mind,the losses of power from friction, multiplied by each shieve & a possible loss from using smaller pulleys (which should put more pressure on the axle-hence more friction)( my own conjecture, learned from using both big & little well pulleys...daily...as a boy.
With these factors in mind,using 3/16" galvanized cable...3" shieves...with a 7 to 1 - worm drive hand winch, no ball bearings on axels...with all these factors considered...HOW MANY SHIEVES in BLOCKs until point of diminishing returns ????? much obliged for your answer...
I will be lifting max of 700 lbs....
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