. Rudimentary treatise on agricultural engineering . lman, ofChelmsford, and manufactured by Garrett and others. It is constructed upon a novel principle, and is welladapted for harrowing, paring, and cultivating land. Thereare seven prongs or tines, to which shares or spuds, varyingfrom 2 to 10 inches wide, may be affixed. These prongs arearranged so as to cut the land 8 inches apart; the depth ofpenetration being regulated by a lever which acts upon aframe suspended about 6 inches above the lower one, andby an easy movement backwards or forwards regulates thedepth of the tines or shares to t
. Rudimentary treatise on agricultural engineering . lman, ofChelmsford, and manufactured by Garrett and others. It is constructed upon a novel principle, and is welladapted for harrowing, paring, and cultivating land. Thereare seven prongs or tines, to which shares or spuds, varyingfrom 2 to 10 inches wide, may be affixed. These prongs arearranged so as to cut the land 8 inches apart; the depth ofpenetration being regulated by a lever which acts upon aframe suspended about 6 inches above the lower one, andby an easy movement backwards or forwards regulates thedepth of the tines or shares to the greatest nicety. It is amost efficient implement for opening and pulverising thesoil; as shares of different forms may be placed upon thetines, it may easily be applied to other purposes, as a skim-parer, &c. Messrs. Garrett have added an improvement, bywhich one side may be depressed lower than the other, to Johnsons skim cultivator. 65 adapt it better for working on sloping ground, and so simplythat it can be altered while in use. Fig. A smaller implement, called a subsoil harrow, is also manu-factured by Colman, for stirring the subsoil; it has twotines, united by the framework above, and a connecting-barat the bottom, upon the end of which is placed a kind ofshare, the depth being regulated by a lever similar to thelarge drag. Johnsons skim cultivator. This is the invention of the Johnson, of Grovelye,Linfield, Sussex, and is manufactured by Messrs. is for the purpose of breaking up and pulverising land,clearing it of weeds, rubbish, and of couch grass, and it isasserted, at a less expense than by the means usually resortedto. It is said that a lad with three horses may go over fiveacres per day ; and as the implement, from its simple form, 66 ROLLERS. is not so likely to choke up as most similar implements are,or require to be taken out of the ground so often, it is quitepossible this may be the case. It is found greatly to facili- Fig. 16.
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