328 Of the Drill-Boxes. Chap. XX. 



half Diameter) coming out of the hollow Cylinder, oa 

 each Side of the Brals Box. 



The Spindle is kept from moving end-ways, by 

 Wreaths, in the fame manner as the Axis of a 

 Wheelbarrow is ; which Wreaths mall be defcribed 

 together with the Hopper, k is the Hole by which 

 the Fore-end of the Seed-box is held up to the Bot- 

 tom of the Hopper, by a Screw and Nut. / is the 

 Hole where the Hinder-end of the Box is held up, 

 in the fame manner as the Fore-end is. mn op fhew 

 where the Two Halves of the Seed-box are joined 

 together. ' * 



Fig. 10. mews the Outfide of One Half of the 

 Brafs Seed-box. AAA fhew the Thicknefs of the 

 projecting Bafe of the hollow Cylinder, which is 

 made the thicker, to the end that the Hole may be 

 bored large, and made an Inch and Three Quarters 

 Diameter, when a Spindle that is to go therein is re- 

 quired to be of that Bignefs, by reafon of its extra- 

 ordinary Length, as it is in the Fore-hopper of the 

 Wheat-drill. B C fhews the Thicknefs of the Ends; 

 of the Seed-box, whereby it is held up to the Bot- 

 tom of the Hopper ; if they are not quite a quarter 

 of an Inch thick, they will be flrong enough ; efpe- 

 cially C, which is the hindermoft, and which is never 

 pull'd down by the Turning of the Spindle, but is 

 rather raifed up by it. 



D is the Head of the Counter-fcrew, to be turn'd 

 by the Fingers, to prefsagainft the Side of the Setting- 

 fcrew, to keep it from turning of itfelf, when it is 

 worn loofe. 



E is the Hole for the Axis of the Tongue. F is 

 the Hole of an Iron Screw-pin, which both holds 

 the Cover to its Place, and alfo the Two Halves of 

 the Box together. G is the Hole for another Screw- 

 pin, which holds the Two Sides of the Box together. 

 H and I are Holes for Two other Screw-pins, which 

 flkewife hold the Two Halves of the Box together., 



and 



