402 Report of the Stewards of Implements at the Battersea Show. 
resistance to the implement propelled than tlio power of adhesion in the 
brakes, but less than the power of the engine, the brakes would slip, the 
implement stop, the engine keep nmning, and all breakages and stopping of 
cogs would be prevented. 
" 6th. As the engine is continually running, it is obvious that single-cylinder 
engines maybe used with advantage with this windlass ; whereas their iise with 
other machinery is attended with considerable loss of time, and risk, as the 
engine would require to be stopped to reverse the action of the drums each 
time the implement arrived at the headland. 
" 7th. The same brake that causes the rotation of the drums when fixed, 
exerts when liberated sufficient power to cheek the delivery of the slake rope, 
so as to keep it off the gi-ound, and, being adjustable, any amount of pressure 
can be obtained, as the resistance of the soil and other circumstances may 
dictate." 
The apparatus appeared to work very well in the field, but 
the plot of ground occupied by the exhibitor was certainly the 
most difficult of all to work. 
Messrs. Coleman and Sons, of Chelmsford, exhibited a set of 
steam-cultivating apparatus, invented by Yarrow and Hilditch, 
of London, which is fairly represented in the following 
engraving (p. 403). 
a a are the two cultivators, as made by Coleman ; b, the 
anchor. The system consists in having a steam-engine moving 
on one of the headlands, fitted with winding reversible gearing ; 
at the other headland is the anchor, with a pulley, round which 
the rope works. We will suppose the apparatus to be at rest, 
with both cultivators in the middle of the field. Upon starting 
the engine, one of the cultivators will commence working, and 
travel towards the engine, Avhile the other will travel towards 
the anchor, doing no work. When one cultivator has reached 
the engine, and the other has reached the anchor, if the motion 
be reversed, that cultivator now at the anchor moves, working, 
towards the middle of the field ; while the other moves, doing 
no work, from the engine towards the middle of the field, and 
so on alternately. 
It will be seen that the anchorage has no great strain upon it, 
as it has only to resist the force required to draw the implement 
doing no work ; and half the rope employed is only subjected 
to that light strain. 
Objections may be raised to the necessity of having two 
cultivators, but these are not in themselves expensive imple- 
ments, and the saving in wear and tear of ropes may be a good 
answer to the objection. It requires no more men to work this 
system than that of others. It worked very well, and is certainly 
worthy of consideration where cultivating or scarifying is pre- 
ferred. For ploughing it is not clear that it would be found 
admissible. 
Although not entered for exhibition, the stewards granted 
permission 
