Claeke.] Report on Steam Cultivation. ' 343 



j)ulley " run true,'' even when the centre-pin^ C, is much loorn. For 

 this object he always keeps a stock of pieces of ofas-piping-, of 

 various lengths, shaped as in Fig. 3, which 

 will slip over the upright pin, D (Fig. 2), 

 selecting the size of the " stop " under the 

 „. „ draft-iron, G, so that the draft-line, E F 



(between the arrows), Fig. 2, shall be ex- 

 actly in a line with the middle of the rope pulley. Of course, 

 the lower the sheave (or pulley) the shorter is the " stop " put 

 on. If the draft-iron, G, be too low, the upper rim of the pulley 

 will grind against the top bar, A ; and if it be too high, the 

 lower edge will do so against the bottom bar, B ; and, in either 

 case, the wear of the centre-pin, C, is increased and unequal, 

 and the risk of overthrows and breakages greater. " This simple 

 matter," says Mr. Bulstrode, "has saved pounds in snatch-blocks 

 and in breakages." 



He does not use the Bedford " compensating " double snatch- 

 blocks, but considers that the one thing still wanted is a compen- 

 sating-brake, by which the power now lost in giving sufficient 

 tension to the slack or tail rope could be added to the draft 

 of the tight or pulling rope. He has designed one on an 

 entirely different principle to the compensating-brake once 

 brought out by Mr. Fowler, but has not yet got it sufficiently 

 simple. 



No. 103. Mr. E. W. Browne, of Langton, near Wragby, Lin- 

 colnshire, with Mr. W. Lacy, of Panton, and Mr, Christopher 

 Robson, of Tupholme, are partners (the late Mr. Thomas Greet- 

 ham, of Stainfield, was a fourth), in a " set " of two 14-horse 

 Fowler engines. These cost 1496?,, and started in April, 1864. 

 Mr. Browne's farm, of 430 acres arable and 163 grass, has a 

 strong clay soil, with a blue clay subsoil, in fields averaging 

 30 acres in size ; but the 2400 acres arable, embraced in the four 

 farms, includes a variety of soils, from some of the strongest clay 

 in Lincolnshire to light sand. This one apparatus does all the 

 heavy tillage of these four large and medium-sized farms, and also 

 a considerable quantity of work for other people. In the very 

 first year, between April and winter, it cultivated or ploughed 

 1620 acres, Mr, Browne has reduced his horses from 16 

 to 12 ; the other partners have also reduced their teams, but 

 we do not know whether in like proportion : if so, the steam- 

 tackle will have displaced on the four farms no fewer than 

 18 horses. 



The engines do 6 to 8 acres per day of ploughing, or 15 to 

 20 acres of cultivating (in long days more) per day, burning coals 

 which cost 135. a ton, at a railway station half-a-dozen miles off; 



