2.78 



BCMP F&OM BBAN STALKS* 



as to beat out all the corn from those ears which they ifieet 

 fairly; but if any escape they are drawn in, together with 

 the straw, and rubbed round by the beaters against the in- 

 side of the ribbed drum, or cylinder, F, so as to open the 

 cars and let out the corn, though the ears come in any posi- 

 tion whatever. At H is a grating, upon which the beaters 

 deliv/er the corn, chaff, and strtjw all together; the two former 

 fall through upon the ground at X, and the latter i^lidesdown 

 on the grate ; the corn is afterward to be dressed in a win- 

 powing machine, which s'eparalCH the light and heavy corn 

 from the chaff. The curbs F are Hxcd by screws, which can 

 be adjusted so as to bring the cylinder nearer, or farther 

 from, the beaters, to adapt the machine for thrashing diffe- 

 rent kinds of grain; for it is evident, that large corn, as 

 pease, beans, e$cc., must require more space to rub them in 

 than the smaller grain, as wheat and barley. L, fig. 4, is 

 one of the uprights of the frame which supports the bearing 

 for the axis B of the cog-wheel ; and M is an oblique brace, 

 which strengthens the fame. N is the stage on which the 

 man who feeds the machine stands. 



Fibres in the 

 stalk of the 

 l^eaa 



exceedingly 

 strong. 



VI. 



Account of a Substitute for Hemp, prepared from Bean Stalks, 

 By the Rev, James Hall, of Chesnut Walk, WaUham- 

 stow*, 



JL HOUGH it has not been attended to, ^or, so far as I 

 know, ever been mentioned by any one, yest it is certain, 

 that, according to its size, every bean plant contains from 

 20 to 35 filaments, or fibres, running up on the outside, 

 iin(3er a thin membrane, from the root to tlie very top all 

 around, the one at each of the four corners being rather 

 thicker, and stronger than the rest. It is also certain, that, 

 pext to Chinese,, or sea-grass, in other words> the material 

 with which hooks are sometimes fixed to th<? end of fishing 

 lines, the filaments, or hempen particles of the bean plant, 



* Trans of the Soc. of Arts, vol. XXVUj p. ^7. The silver medal 

 ivas voted to Mr. Hail. 



^ are 



