40 



AGRICULTURAL ENGINEERING, &c 



[1852. 



t/shei's 8team Plough. 



This invention consists, fli-st, in mounting a series of ploughs 

 in the same plauo around an axis, so that the ploujrhs shall 

 successiveh' come into action ; and, secondl_v, in appl3'ing power 

 to give rotary motion to a series of ploughs or other instruments 

 for tilling tlie earth, so that the resistance of the earth to the 

 ploughs or instruments, as they enter and travel through the 

 earth, shall cause the machine to be propelled : thus making the 

 ploughs act in the earth in the same way as paddle-wheels do in 



(f ' and /-), which are wheels similar to h b, the intermediate 

 part (f) being by preference removable at pleasure, so as to 

 fender these bearing parts suitable to different stages of cultivation. 

 This compound cylinder has its axle supported in the bearings (g) 

 attached to the lower or to the under side of the carriage frame. 

 The axle of this cylinder carries also at one end the wheel, h, 

 to be afterwards noticed. A movable lever frame (i i i i) is 

 supported on an axle or shaft {k) as a fulcrum. The free ends 

 [i! i) are formed into the toothed segments (Z), and are concentric 

 to Jc; these segments being acted upon by the two toothed 



^^ 



Fig. 1. 



the water, by which the vessel is moved along ; and the resistance 

 of the earth being greater than the water, the power obtained is 

 proportionably more. 



Fig. 1 shows a side elevation of the steam machinery ; fig. 2 

 is a plan thereof, the steam-boiler and engine being removed. 

 In fig. 2 the under edge of the mouldboard and share is formed 



pinions and spindles (w), which elevates or depresses the hind 

 part (j i) of the lever frame, and all that it carries, at the pleasure 

 of the conductor. On the carnage thus constructed is placed the 

 locomotive boiler, with its engines, the power of which is applied 

 through the medium of connecting-rods (o) to the crank-shaft (p), 

 supported on two standards (q). On the shaft (^) there is also 



to a curve struck from the centre of the shaft, or axis, on which 

 the ploughs are affixed ; a a indicate the bed-frame, or carriage 

 of the machine. The fore carri.age wheels (b h) are mounted 

 on an axle, which turns in bearings (c) attached to the swivel 

 frame (d), which moves on the bolts (d) for turning the machine 

 rounil in a small space. A portion of the swivel frame (d) is 

 toothed, and acted upon by the pinion and winch (e). The 

 hind p:u-t of the carnage is here shown, sui)ported upon the 

 hollow cylinder or roller (f), composi^d of two cxtrcnie parts 

 * Sec Auguet Dumber, page 13. 



fixed the spur pinion, indicated by the dotted circle, p' p', in fig. 1 ; 

 and this pinion, by taking into the wheel, »■, mounted on the 

 shaft, /•, gives motion, at the same time, to the pinion, t, which is 

 carried round on the same shaft (K^. The pinion, t, thus actuated, 

 takes into the wheel. A, before referred to, on the bearing cyUnder, 

 /; and it is preferred that the point, t, should be applied so as 

 readily to ]nit into and out of gcai', with its wheel, though not so 

 showu in t!io engraving. IJ}' this arrangement of parts, a slow 

 progressive motion is obtained tor the whole machine; on the one 

 hand, through the cylini.!cr, f, and, on the other hand, a separate 



