Trials of Self-binding Reapers at Aigburth. 
125 
McCormick. The allotted rounds having been completed, 
several special trips were made to satisfy the inquiries ot 
Mr. Rich on particular points. 
The measurements of the lengths of the stubble were taken 
with the greatest care and accuracy by Mr. Rich, and the 
sheaves were weighed and counted by Mr. Elphick, the Assistant 
Steward. The average width of cut made by each machine was 
ascertained in a most ingenious mode ; the activity and skill 
shown by Mr. Robson, a pupil of Mr. Anderson's, was most 
noticeable, the work requiring both head, hands, and legs, and 
entailing no slight tax on physical energies of a high order. 
The following table of the dynamometer results has been 
furnished by Messrs. Eastons and Anderson, the Society's Con- 
sulting Engineers. 
Dtnamometeb Trials with Sheaf Binders at Aigburth, Liverpool, 
August 17, 1877, on Wheat. 
Name of Exhibitor in Order of Trial. 
C. H. 
McCormick. 
Walter A. 
Wood. 
D. M. 
Osborne and 
Co. 
Averages. 
Price 
Width of Cat— With lay . . . . 
„ Against lay . . 
„ Average 
Height of Stubble 
Side draught — With lay 
„ Against lay .. 
Mean draught (iu lbs.) With lay . . 
„ „ Against lay 
„ „ Average .. 
Mean draught (in Ibs.)),^.., , 
per inch-width of cut r"'^^'*y " 
„ „ Against lay 
„ „ Average .. 
Mean speed in miles per hour 
Width of knife 
Number of sheaves cut 
Total weight of sheaves 
Mean weight of each sheaf . . 
Foot-lba. of work per lb. of com 
cut, or height to which corn 
must be raised to represent work 
done in cutting and binding it 
£ 
60 
Inches. 
58 
52 
55 
8 
lbs. 
35 
25 
464 
471 
467-5 
8 
9-06 
8-53 
3-15 
Inches. 
5-6 
17 
lbs. 
265 
15-6 
423-5 
£ 
60 
Inches. 
50 
61 
55-5 
6 
lb?. 
15 
25 
468 
460 
464 
9-36 
7- 54 
8- 45 
3- 00 
Inches. 
4- 0 
21 
Ibe. 
371 
17-7 
420-7 
£ 
50 
Inches. 
55-2 
62 
58-6 
7 
lbs. 
35 
37-5 
486 
418 
452 
8-85 
6- 75 
7- 8 
3-22 
Inches. 
5 6 
18 
16 
lbs. 
/ 2o0\ 
I 173/ 
461 
8-26 
312 
34 
423 
468 
* Sheaves were kept separate in the up and down runs. 
