The Trials of Ploughs at Warwick. 323 
consequently, as the capacity of the plough increases the effective 
draught tends to diminish, against which must be set the 
greater skill required for the handling of the double or three- 
furrow ploughs. 
Light Laiul Ploughs. Classes /., III., IV., V., VI., VIII. 
Dynamometer Trials. 
1 
2 
3 
4 
5 
0 
I ' 
8 
9 
10 
Cata- 
logue 
No. 
Size of furrow 
\Vt. of 
earth 
Ft. Ib, 
of 
Class 
Name of exhibitor 
V\ eight ot 
plough 
Width 
Depth 
Area 
in s(i. 
ins. 
turb- 
ed per 
>>!■ 
run 
per lb. 
of 
eartli 
raised 
ght in 
lb. 
I. 
W. Ball & Sons . . 
1 
Cwt qr. Ib. 
1 3 2A 
8-25 
// 
4-98 
41T 
99-9 
6*55 
218-1 
Single -furrow | 
ploughs for-j 
light laud 1 
Thos. Corbett , . 
4 
2 
1 
?U 
0-25 
5-35 
49*5 
120-5 
719 
288-7 
TIios, Corbett . . 
5 
2 
0 
194 
■ 
8-75 
4 85 
42’4 
103-3 
7-59 
261-0 
J. C. & T. Yates . 
12 
8-0 
507 
40-5 
98-7 
8-18 
•269-0 
III. 
• 
Single - furrow^ 
ploughs for 1 
press drill and 1 
broivleast ) 
Thos. Corbett . . 
27 
2 
0 
22 
8*5 
5-42 
4CT 
112-1 
10-43 
390-0 
J. C. tfc T. Yates . 
32 
2 
2 
104 
8‘5 
4 96 
42-2 
102.7 
9-50 
327-0 
J. C. & T. Yates . 
31 
2 
2 
7- 
8-5 
0 0 
51*0 
124-2 
9-48 
392-4 
IV. 
Two - furrow f 
ploughs 1 
W. Ball & Sons . . 
33 
3 
0 
0 
10 
510 
82-0 
200-9 
0-45 
432-3 
J. C. T. Yates 
■10 
3 
3 
G 
17 
4-90 
84-3 
205*4 
7-28 
498-J 
Thos. Corbett . . 
30 
3 
3 
12 
18 
4 80 
87’5 
•213-0 
7-40 
525-J 
V. 
Three - furrow i 
.1. 0. & T. Y’ates . 
44 
4 
2 
15 
27 
4-40 
118-8 
2887 
6-71 
615-0 
ploughs 1 
J. Cooke & Sons . 
41 
4 
0 
3 
30 
5 17 
155T 
377‘5 
6.37 
801-0 
VI. 
Digging 1 
Thos. Corbett . . 
48 
2 
1 
11 
10-5 
0-28 
05-9 
100-4 
8-01 
459-3 
ploughs for h 
J. C. & T. Yates . 
5i 
2 
0 
25 
10* 
5-42 
5G-9 
138-5 
8*99 
414-9 
light land ,1 
J. Cooke & Sons . 
4G 
1 
3 
17 
II' 
5-5G 
01-2 
148-4 
7-09 
381-0 
VIII. 
One . way j 
ploughs ^ 
Davey, Sleep & Co. 
07 
3 
3 
24 
80 
5T5 
41-2 
100-2 
9-4G 
.315-0 
Davey, Sleep & Co. 
68 
4 
1 
11 
80 
5-51 
441 
107-3 
10-73 
384-0 
Eddy is Sons. . . 
09 
3 
1 
14 
9-5 
5-57 
52’9 
128-8 
8-91 
382-2 
Strong Land Ploughs. Classes II. and VII. 
Dynamometer Trials. 
Cata- 
logue 
No. 
Size of fuiTow 
Wt. of 
earth 
Ft. Ib. 
of 
work 
per lb. 
of 
earth 
mov- 
ed 
Drau- 
ght 
in lb. 
Class 
Name of exhibitor 
Weight of 
plough 
Width 
Depth 
Area 
in sq. 
ins. 
dis- 
turb- 
ed per 
yd. 
ruu 
II. 
Single . furrow 1 
W. Ball & Sons , . 
14 
Cwt. qr. lb. 
2 2 U 
// 
8*33 
6 
50 
121-5 
11-01 
440-1 
ploughs for * 
Perkins Sons . . 
22 
2 
3 224 
8-5 
6 32 
53-7 
130-5 
13-29 
578-3 
strong land j 
Thos. Corbett , . 
18 
2 
2 14 
8-5 
0-23 
52-9 
128-6 
12-06 
543-1 
VIL 
Digging ■) 
Perkins cfe Sons. . 
02 
2 
1 234 
12 
7-85 
94-2 
229-0 
9-76 
744-4 
ploughs for 1 
Thos Corbett . . . 
57 
2 
2 6 
12 
8-31 
99-7 
242-3 
10-65 
801-0 
strong land ) 
Eddy cSs Sons . . 
59 
2 
0 2i 
12 
7-67 
92-0 
223-7 
13-09 
976-4 
