 A waggon carries 30 cwt of coals and 3 waggons are linked together by chains; so that 1 horse draws 4½ tons of coal at once; and the declivity of the way is so gentle that the same horse draws with ease the 3 empty waggons back to the coal-hill... 

Dott adds that "the writer further remarks that the use of three small instead of one large waggon is not only easier on the horse, but also on the rails—a matter of prime importance when materials were so faulty.The first expense of making this type of waggon way is undoubtedly great, being at least 10s per running yard," but he comments that it had served six years without any repair worth mentioning.The coupling chains were 2 ft. long to reduce the inertia on starting.