Perhaps I'm the dead weight in this relationship.
Hence less dead weight has to behauled for each ton of paying load.
The home-grown is the estimated dead weight of sheep and lambs slaughtered, which is taken at 40% of the total number of sheep and lambs returned each year in the United Kingdom.
In Koepe's method the drum is replaced by a disk with a grooved rim for the rope, which passes from the top of one cage over the guide pulley, round the disk, and back over the second guide to the second cage, and a tail rope, passing round a pulley at the bottom of the shaft, connects the bottoms of the cages, so that the dead weight of cage, tubs and rope is completely counterbalanced at all positions of the cages, and the work of the engine is confined to the useful weight of coal raised.
The larger the bridge, the more important is economy of material, not only because the total expenditure is more serious, but because as the span increases the dead weight of the structure becomes a greater fraction of the whole load to be supported.
