The weight of the Spindle was 3·98 ozs., of the Full Bobbin 2·23 ozs., and of the Empty Bobbin 0·71 ozs.
Table 7.—Extracted from the Journal of the Franklin Institute.
TEST OF RING SPINNING SPINDLES, MADE AT CALLAGHAN’S MILLS, ANGORA, U.S., BY Mr. S. WEBBER, 13th MARCH, 1890. COUNTS SPUN 30’s.
| Bates Spindle. | Whitin Spindle. | |
|---|---|---|
| Revolutions of front rollers (counted) | 100 | 100 |
| Revolutions of spindles (calculated) | 8360 | 8160 |
| Average power in foot-pounds per spindle | 8·11 | 5·50 |
| Average number of spindles per H.P. | 67·4 | 100 |
| Average H.P. per frame | 3·144 | 2·219 |
Table 8.—Extracted from the Journal of the Franklin Institute.
TEST MADE BY MR. S. WEBBER, AT THE GLOUCESTER GINGHAM MILLS, GLOUCESTER, NEW JERSEY, U.S., ON THE 17th MARCH, 1890. COUNTS SPUN, 26’s.
| Bates Spindle. | Excelsior Spindle. | |
|---|---|---|
| Revolutions of front roller (counted) | 102 | 107 |
| Revolutions of spindles (calculated) | 8039 | 8430 |
| Foot-pounds per spindle (bobbins half full) | 7·35 | 6·89 |
| Spindles per H.P.(do. ) | 75 | 80 |
| H.P. per frame(do. ) | 2·737 | 2·554 |
| Rollers disconnected H.P. for rollers alone | ·462 | ·481 |
| Do.H.P. for spindles and tin roller | 2·264 | 2·064 |
| Do.H.P. tin roller only | ·462 | ·462 |
| Do.H.P. for spindles only | 1·802 | 1·70 |
| Spindles per H.P. spindles only | 113 | 120 |
Note.—Tables 7 and 8 are merely given because they throw considerable light on the question of the power required for ring frames. The Bates spindle is not described, as it is a new form and has not yet been thoroughly tried practically.