Table 3.
ACTUAL PRODUCTIONS IN A WEEK OF 561⁄2 HOURS OF TWIST AND WEFT YARNS FROM MESSRS. PLATT BROTHERS AND CO’S. MULES.
| TWIST. | ||
|---|---|---|
| No. of Spindles in each Mule. | Counts spun. | Hanks per Spindle. |
| 1044 | 30’s | 32 |
| „ | 32’s | 31·5 |
| „ | 33’s | 30·65 |
| „ | 24’s | 30 |
| „ | 50’s | 28 |
| „ | 54’s | 27 |
| WEFT. | ||
| No. of Spindles in each Mule. | Counts spun. | Hanks per Spindle. |
| 1280 | 28’s | 33·81 |
| „ | 29’s | 34 |
| „ | 34’s | 31·85 |
| „ | 36’s | 31 |
| „ | 38’s | 30·46 |
| „ | 40’s | 30 |
| „ | 46’s | 29 |
Note.—The production of any mule varies of course with the class of cotton used, the amount of twist required, and the length of mules; but the figures given in the tables are, in each case, figures of actual productions.
CHAPTER XII.
THE RING SPINNING MACHINE.
(366) The term Ring Spinning is applied to that process by which yarn is spun by means of a machine in which a spindle, revolving in the centre of an annular ring, is used. The ring is formed with a flange or bead over which a C shaped clip or “traveller” is sprung, being drawn round the ring by the yarn during the revolution of the spindle. It is from the use of such a “ring” that the system has been named. The difference between mule and ring spinning is mainly that between continuous and intermittent work. The ring frame is the successor of the throstle, as it was called, in which the twisting was conducted by the aid of a two-armed flyer, formed with a curl at the end of each arm, through one of which the yarn passed on its way to the bobbin. The flyer was fixed on the end of a vertical spindle, and the bobbin was super-imposed on it, resting on a rail having a reciprocal traverse, flannel washers being placed between the flange of the bobbin and the rail to give the necessary drag to the bobbin. Generally, the principle of the throstle is similar to that of the roving frame, when allowance is made for the fact that the bobbin is not positively driven. As it is not now in extensive use it is unnecessary to describe it in further detail, but its general construction can be easily understood if a spindle and flyer be substituted for the spindle and ring in the succeeding description.
Fig. 186.J.N.
