4 
PRACTICAL PART 
iron hook playing loose on this ring, to hold the 
weight when raised. 
Shafts ten feet four inches from the axle; to 
take on and off the axle by means of a hook and 
screw. Five chains, twelve feet six inches in 
length, with a hook at each end; one chain, 
fourteen feet six inches in length, with a hook 
at each end, and with six round links at each 
end, to distinguish it from the other chains. A 
box with six compartments to hold the chains. 
Two strong planks, eight feet in length, with a 
hole bored in each, to fit on to a pin on the 
shafts, along which, and across the axle, the 
planks are to rest when carried on the machine. 
A box or thill on the shafts to carry four blocks 
for the wheels, spades, pickaxes, &c. A South 
American surcingle, and three or four 
rope traces with a hook at each end. A 
strong rope to be attached by one end 
to the axle. At the other end a strong 
iron ring to receive the chains which 
encircle the ball of earth, and to be 
attached to the hook and ring on the axle, when 
the weight is raised. 
Possibly the dimensions here given might be 
increased with advantage. 
“ The draught axle ” or timber wheels should, 
