34 THE YEAR-BOOK OF AGRICULTURE. 



siderable breakage of wire takes place, but ^ t ill the wire cylinders maintain the precedence 

 over cloths, so far as regards the quantity of work performed. 

 "An improTement on this plan, known in England as the Yorkshire machine, resembles 



somewhat the foregoing, save that iron is used instead of wood for the ribs supporting the 

 wire; and the cylinder, instead of being stationary, has a slow revolving motion given to it. 

 A series of brushes revolves on the outside of the wire for the purpose of keeping it clean, 

 thus doing away with the necessity of hand brushing. The interior brushes affixed to the 

 shaft arc capable of being adjusted by means of a screw, so as to stand at any required dis- 

 tance from the interior surface of the wire, which they are never allowed to come in contact 

 with. The whole of these motions of the cylinder and the outside and inside brushes are 



obtained from gearing fixed at the head of the machine. These machines have I n largely 



used, and are very efficient, but they are liable to continual breakage of the wire gave, more 

 particularly at the ribs which are used to support the wire, as in the machine before 

 described. This machine is fixed at the same inclination as the one in which the cylinder 

 was stationary. It is clear that the numerous ribs in all these machines form obstructions 

 to the passage of the flour through the wire gauze. It occurred to Mr. Egan that if he 

 could get rid of these ribs, the quantity of flour dressed per hour would be much increased, 

 without in any way adding to the pressure on the wire; and that, at the same time, economy 

 would result if, as was supposed, the breakage of the wire gauze was due to the ribs. In 

 his machine, the only ribs used are those necessary to form the junctions between the sheets 

 of wire; the distance between them thus being about eight or nine inches, instead of two 

 and a half or three inches, as in the old machines. The inside brushes, instead of revolv- 

 ing with their Burface parallel to the gauze, and being continuous throughout the length of 

 the cylinder, as in the Yorkshire machine, are divided into separate portions, corresponding 

 with each sheet of wire gauze, and are at an angle, so that one end of the brush is nearer to 

 the cylinder than the other. The outside brush, instead of revolving, has a motion given 

 to it similar to hand brushing. By these means the frequent breakage of the wire is obvi- 

 ated, besides dressing a larger quantity of flour per hour." 



Improvements in Flouring; and Bolting. 

 A patknt lm^ been recently granted to Messrs. Stouffer, Brough, and Barr, of Chambcrs- 



burp. Pennsylvania, for an important improvement in flouring and bolting. 



The nature ><f the improvement consists in entirely separating the bran and the flouriug 

 particles previous to subjecting tie 1 Btuffs to regrinding, bj passing them through the super- 

 fine bolt, and then through a second one under it. The advantages of this improvement arc 

 forth in the specification, as follows: "In the bolting process and apparatus an insig- 

 nificant quantity of brown Btuff is made, (which is only bran ground fine,) and avoiding 

 entirely the production of middlings, al the same time increasing the production of superfine 

 Boor of uniform quality or brand; with good wheat, a barrel being produoed from four 

 bushel- to tour bushels and -i\ pounds. 



It is also stated in the specification, thai all efforts heretofore made to produce a barrel 

 of superfine fiour from les-- than four bushels and twenty-five pounds of wheat, have tailed 

 to procure a regular run of quality, on account of the bran husk being reground with the 

 farina, and imparting a >• l ■ >-' to the flour. The regrinding of all the offal, on account of 



gluten, lias uNo a teii'leiiey to clog the holt-. The peat quantity of hrall also, in proportion 



to the fiour, which is passed through the auxiliary mill, consumes a great 'leal of power. 



A full d es c ripti on of this improvement, with a diagram, maybe found in the Scientific 

 Amaru ■■•■>. roL x. 



Feeding- Flour-Bolts. 



Sami rax T\r, f ;\uT. of Indianapolis, Indiana, has obtained a patent for an Improvement in 

 f dng flour-bolts, the oasontlsl feature of whioh oonshrts hi fe e ding the meal at all times 



uniformly to the belts. The u-u-.l method of feeding the meal to holts in making flour is by 

 epouta having a Irop-ahOS uu hr each. These drOp-shoei receive a shaking motion by 



