Chap. XXI. Of the Wheat-Drill 3 69 



We make all our Spindles of clear-quarter'd Afh, 

 without Knots or Crooks •, and when they are well 

 dry'd, and made perfectly round, and of equal Dia- 

 meter from one End to the other, by the Prong- 

 maker, we pay a Peny per Foot for them at the 

 firffc Hand, and they will now-and-then have fome~ 

 thing more for the largeft Size ; but we are only 

 curious to have the middle Part of this long Spindle 

 exact ; for we graft on a Piece at each End, which 

 does not require any Exactnefs: The Graftings are 

 feen at a a at one End, and b b at the other End of 

 the Spindle (in this Fig. 21..) by Four flattifh Iron 

 Rings driven on upon the grafted Parts, as they appear 

 under thofe Letters in the Middle. Between each Pair 

 of thefe Rings, we drive a fmall Iron Pin thro' the 

 Joints at c and at d 9 to keep the Grafts from feparating 

 end-ways -, and if they are not tight enough, we make 

 them fo, by Wedges driven in betwixt them and the 

 Spindle. 



This fore Hopper is drawn by the Spindle, and the 

 Spindle is drawn by the Two double Standards B and 

 C, betwixt whofe Forks it is placed, as appears in 

 this Figure; the Diftance between each Fork, or 

 double Standard, being exactly the Diameter of the 

 Spindle, fo that the Spindle may have juft room to 

 rife and fink there, and no more. 



The Hopper and Spindle are guided, or kept in 

 their Place, from moving end-ways, by Two Wreaths 

 fcrew'd on to the Spindle, the one at e> and the 

 other at /; each of which Wreaths, bearing againfi 

 the Surfaces of both the Legs of each double Standard, 

 on the Sides next to the Hopper, prevent the Spin- 

 dle and Hopper from moving towards either End ; 

 and yet admit the Wheels, or either of them, to rife 

 and fink without raifing either Side of the Plough, 

 contrary to what would happen, if the Wreaths were 

 placed on the Outrides of the Standards next to the 

 Wheels. 



B b Wfi 



