302 MR. J. C. DYER ON 



In the above processes the rovings are made compact, so 

 that the bobbins contain a larger weight of cotton, and are 

 more portable than on the old plan ; and though without 

 any twist, the rovings have sufficient strength to turn the 

 bobbins in drawing them off for spinning. It is obvious 

 from the above that the differential motions in the bobbin 

 and fly frame are superseded and wholly dispensed with, 

 by turning the bobbins by the equable surface-motions 

 employed in the, patent tube frame, as above explained. 



The new roving-frame was first brought out at the 

 "Taunton Cotton Works^' of Messrs. Crocker andRichmond, 

 of Boston, who informed me that it had been invented by 

 a Mr. Danforth, who was employed in their works. In 

 the year 1825 Mr. Charles Bichmond, of that firm, came 

 over to England and brought a working model of the new 

 roving-frame, and placed it in my charge for the purpose of 

 having it patented for the joint account of his house in 

 America and myself. Accordingly I obtained a patent for 

 the invention in the form in which it had been thus com- 

 municated to me. It was, however, so imperfect in its con- 

 struction, that many improvements were obviously neces- 

 sary to make it work to advantage in this country, and 

 which were subsequently made under my directions, and 

 patented as such for the same joint interest. I then sub- 

 mitted the building of this frame to several of our then first- 

 class machine-makers, with the exclusive right of intro- 

 ducing it for use among the spinners. Among the houses 

 to which this offer was successively made were Messrs. 

 Cocker and Higgins, Messrs. Hughes and Wren, and Mr. 

 Henry Gore. But, after the experiments and investigations 

 they had respectively made, each of them declined to take 

 the machine in charge, having come to the opinion that 

 the invention could not be made to work with that accu- 

 racy and economy which would justify its adoption by the 

 spinners in England. 



