On a simple Wheat Drill. ^S 



PLATE II. FIG. 1. 



A side view : a, b, c, d, the end of the seed box, 

 which is thirteen and an half inches wide at top, eleven 

 inches deep, gradually lessening to five inches at the 

 bottom : this bottom is soal leather, and is punched 

 with holes directly over the mortises in the axle placed 

 under it. The leather is made to fit close on the axle. 

 The coulters are twenty one inches long ; the upper 

 part is of wood, the lower end is sheathed with iron, in 

 front, and is seven inches high, and five inches broad. 

 The back of the lower part of the coulters is grooved to 

 receive the end of the funnel, n, o, through which the 

 seed drops into the drill, made by the coulter. 



FIG. 2. 



Is a view of the axle. There are four sets or rows 

 of mortises, the rows are eleven inches apart from cen- 

 ter to center : and there are seven mortises, at equal 

 distances round the axle, one inch long, three fourths 

 of an inch wide, and three eighths deep, at the further 

 or outer end, and gradually lessening in depth, inward, 

 to nothing. 



FIG. 3. 



An end view : a, b, c, d, represent iron rods ex- 

 tending from the cross bar of the frame to the fore part 

 of the coulters. The heads of the coulters penetrate 

 the fore part of the frame at g, h, i, k. 1 is a board, 4-i 

 inches in diameter, placed upright before the axle, and 

 resting upon the edge of the hoppers, to direct the seed 

 into them. It is supported by a shoulder in the frame, 

 against which it rests. The hoppers are represented 

 by the letters m, n, o, p. q, r, are handles to lift the 

 drill at the end of the field. 



