^2 I M P L E M E N T S. 9, 



idravvn down again by the horfes ; by which 

 means the timber is lifted from the ground, 

 and fafpended to the axle. 



If the required point of balance be not hit 

 lipon the firft trial, the fliafts are fuffered to 

 rife again, the chain is unhooked, and lliifted 

 to its proper fituation : the fliafts being again 

 pulled down, are bound, by an iron trace or 

 fmall chain, clofe down to the timber ; while 

 another fmall chain or trace is faftened round 

 the foremoft end to hook the horfes to ; ths 

 'team draijoing hy the timber^ not hy the pole or 

 Jhafis, 



The utility of having a fuperbalance of 

 weight forward is twofold : — if the piece were 

 flung in exadl equilibrium, it would, upon the 

 iroad, be in perpetual vibration ; thereby render- 

 ing the pull unfteady, and extremely inconve- 

 nient to the horfes ; whereas by throwing the 

 "balance forward, the traces are condantly kept 

 down in their proper place, and the pull be- 

 comes uniform : if, however, too much weight 

 Were to be thrown forward, the draught of the 

 horfes would not raife the point from the 

 ground ; the frid:ion would, of courfe, increafe 

 the draught, and the road be at the fame time 



burr^ 



