312 REPORT— 1887. 



number of spindles. For iustance, on a mule of 100 dozen spindles S^d. is 

 allowed for every second. 



Extra Allowances. 



Breakage. — '2^ per cent, is allowed for breakage, but the self-acting 

 indicator is so constructed as to make this allowance. 



Fineness. — As the Oldham list pays by length, and not by weight, it is 

 not necessary, as a rule, to take the fineness of the yarn into account, as a 

 mule will in a week spin the same length of fine yarn as of coarse yarn, 

 assuming the turns per inch to be the same. 



An exception is made in the case of 24's, and under, where an extra 

 allowance is made. 



Bobbin carrier. — If a bobbin carrier is not provided l^d. per 100 lbs. 

 of yarn extra is allowed ; if a hoist for carrying the bobbins to another 

 room is provided but no carrier then Id. per ]00 lbs. is the allowance. 



How Wages are Galadated. 



The calculation to be gone through may be thrown into the following 

 general formula : — 



Let W:=normal wages per week. 



a=allowance for speed. 

 rB=extra allowances. 

 Then W + a + a;=normal wages per week. 

 Let S^number of spindles. 



c?= number of seconds in which three draws occar of 



63 inches in length, 

 m^number of seconds in a normal working week. 

 K=number of inches in a hank. 

 H^number of hanks spun in a normal week from one 



mule. 

 I = amount actually spun, as shown by indicator. 

 Then 



Sx63x3 



^ amount spun m a second. 



Sx63x3 



d 



X m = amount in inches spun in a normal week. 



-= X 9?i X — == number of hanks that could be spun in normal 



a K 



week = H. 



Deduct 2^ per cent, for breakages : 



trTT 



H— — — = number of hanks allowing for breakages. 



And since W + a + a;=normal wages, 

 W+a+x 



5H 



H— — - = rate (R) per hank that is to be paid for the actual amount 

 zuu 



spun. 



R X I gives the wages payable. 



