Implement Shoio at Bury St. EdrnwuVs, 595 



tho power consumed. During this trial wo examined minutely the nature of 

 tlie work, tabulating the resiuUs, as given in Table No. 2. As a rule, tlic corn 

 was clean threshed, the machinery being nearly all sui)plied with Goucher's 

 patent beaters, modified in a few cases. The corn was more or less broken in 

 every instance, partly from the dry and free condition of the sample ; noticeable 

 differences occurred in tho proi)ortion of Whitecoats, &.c.^ unthrashed ; those 

 machines furnished with a rubbing apparatus cleaned the corn most thoroughly. 

 The separation of small seeds from the chaif, an important point, when the 

 latter is used for food, appears to depend upon the combination of blast and 

 screen. The general adoption of Coulson's spring suspenders, for carrying 

 the caving-screens and winnowing-box (modified as to substance, some being 

 equal throughout," others strongest in middle, thus making both ends elastic), 

 is a decided improvement, both as reducing cost and lessening draft. The 

 following table gives the results of tho preliminary trial, and indicates the 

 I'eason for our selection of machines for further competition. (See next page.) 



In the second trial the following points were to be solved : — The weight of 

 corn threshed during an interval of ten minutes ; the proportion of grain not 

 sacked, i.e., scattered, left in the chaff, carried over with the straw, or under 

 tlie machine (all of which must be more or less wasted in the field) ; the wheat 

 in Whitecoats (also indicative of loss, since good large corn is sure to come 

 over with these) ; and lastly, the weight of chaff and foreign matter in three 

 bushels of the sacked corn ; that machine was held to possess most merit which 

 most comijletely separated chaff from corn, and left the separation of the dif- 

 ferent qualities of grain as the only work to be done by hand. 



We proceed to notice briefly the different machines. 



Marshall and Sons, Gainsborough : ])articularly steady in work, owing to 

 solidity of frame and well-balanced driving gear. The corn is thoroughly 

 rubbed by hurameller, and the chaff well blown away; altogether an excellent 

 machine. Exceeding the limit of power, it is disqualified ; but we should be 

 wanting in fairness if we omitted to express the high opinion we all entertain 

 of the merits of Messrs. Marshall's machine. 



Humphries, of Pershorc, fully justified the high reputation they have gained. 

 Their chief merit is simplicity. The working parts are few, draft moderate, 

 and liability to derangement reduced. The corn on its way to the humnieller 

 is retained in the whitecoater-box, and subjected to the action of iron beaters 

 revolving 500 times in a minute : hence the absence of whitecoats. The 

 separation of weed-seeds is well done, the winuowiug-box having a fine wire 

 base through which dirt and seeds are shaken. 



Eansomes and Sims have a strong open frame, well-strutted ; a simple 

 arrangement for bagging chaff without power; the bags, of peculiar shape, 

 being suspended to the chaff-bonnet; Brinsmead's shakers, a series of bars 

 revolving at right angles to the passage of the straw, furnished with teeth 

 that interlap with those in front and behind, and thus carry on the straw 

 by a continual agitation ; the separation being rendered more perfect by 

 the action of a puddler, which, with a pendulum motion, seizes the straw 

 as it comes, retains and spreads it out, and so prevents it being jerked 

 from the drum on to the middle of the shakers. This must be an admirable 

 arrangement for barley. Eeference to Table No. 3 will show the moderate 

 power for work done. The winnowing process was not good, and admitted of 

 some improvement, more chaff and heads being left in the sample than in 

 any other case before us ; this, together witli the large proportion of white- 

 coats and the indifferent separation of weed-seeds from chaff, are defects that 

 should be remedied. The safety-feeding hopper is noticed by the Miscel- 

 laneous Judges, we therefore refrain from more than a passing allusion. 

 This novelty consists of a fence round the mouth of the drum, to prevent any 

 person from tailing in ; in case any one " tlie luorse for U<2uor " fell over tho 



fence 



