COTTON-SPINNING MACHINERY. 303 



Having formed a favourable opinion of the principle 

 of the invention, and believing it to be susceptible of 

 great improvement in working by several changes in its 

 construction, I could not allow the unfavourable conclusion 

 come to by the above-mentioned parties to deter me from 

 farther efforts to bring the machine into practical operation 

 in competing with the bobbin and fly frame. 



With a view, therefore, to have the tube frame fairly 

 and fully tested, I commenced the Machine -making Works 

 in Manchester, where they were subsequently built upon 

 the improved plans that rendered them of practical im- 

 portance for spinning most of the lower numbers of twist. 

 But it took a long time, and required much patient labour, 

 to effect the changes and improvements necessary before 

 the tube frame could be brought into a state sufficiently 

 simple and safe-working to prove its real merits and in- 

 duce the spinners to adopt it in place of the fly frame. 



In the course of my experiments in building them, 

 several frames were broken up before any certain success 

 could be realized. But about the end of 1828 the demand 

 for them began to extend ; and soon after, a large trade was 

 established in building the tube frames, then called the 

 " Yankee Speeders " by some, and by others '' Dyer^s 

 Frames '' or speeders. 



The extensive adoption of the tube frames for low num- 

 bers led to many attempts to render them applicable for 

 fine spinning also; but this could not be done without 

 putting twist in the rovings to strengthen them when 

 reduced enough for high numbers; audit was quite impos- 

 sible to have any twist in rovings as they passed through the 

 twisting and untwisting tubes ; wherefore the bobbin and 

 fly frame was still to be looked to for this branch of the 

 trade. In this instance (as we have seen in many other 

 manufactures) we find how naturally one successful inven- 

 tion suggests and leads to others of equal importance, as 



