No. 133,] 



97 



this Tluostle, is the use of a horizontal friction wheel 2 feet 8 

 inches diameter, for driving the bobbins, the beveled edge of the 

 bobbin tubes resting on the beveled edge of the friction wheel. B}' 

 this arrangement, bands for the spindles are dispensed with, and 

 the inconvenience caused by changes of weather from damp to dry 

 are altogether avoided, W'hichis an item of importance. 



The principle is here shown on a cup frame, but it is applica- 

 ble to the several kinds of spinning, such as the ring and travel- 

 ler, live spindle and flyer, dead spindle with flyer, as used in the 

 largest establishments at Lowell. This Throstle can be built of 

 any desired length, from 10 to 60 feet, and with from 64 to 500 

 spindles. The length of a frame of 128 spindles, is 18 feet; of 

 272 spindles, 34 feet 10 inches; increasing or diminishing 22J 

 inches for every friction wheel of 16 spindles. The traverse is 

 4 inches, 4^ inches, or 5 inches, according to the nature of the 

 spinning. 



The following memorandums of its speed and production have 

 been supplied by parties who have it in operation, viz : 



On No. 50 s. 

 36 s. 

 30 s. 



18 s. 

 12 s. 

 14 s. 

 30 s. 



19 s. 



96 revolutions of the front roller per minute. 

 106 " 



112 to 115 « 



140 to 150 " 



150 to 170 " 



8^ hanks per spindle in 11^ hours. 



9 



12 hours. 



A. c. 



[Assembly, No. 133.] 



