SEVEKAL MECHANICAL INVENTIONS. 145 



menced building the machines for re-starting the works on 

 a large scale; and in doing this I made several other 

 changes and improvements, which are set forth in the 

 specification of my second patent, dated in 1815. 



I had from time to time made many changes in the 

 different parts of the machine, and especially those to form 

 the twill fillets and for controlling the inertia of the rapidly 

 alternating movements in it, which so far increased the 

 speed and safe working of the machine as to supersede 

 entirely the original model machine as it came to me from 

 America. 



Some time after completing these improvements, I sent 

 to Mr. Whittemore the working parts, or " head work,^^ 

 of one of my machines for him to adopt, if thought useful, 

 in the card-making works of the Company with which he 

 was connected, and which had been removed to New York ; 

 and in return I was much gratified by receiving the assu- 

 rance that he, and the parties concerned with him, had 

 highly appreciated the improved construction so trans- 

 mitted by me, and that great advantages would result from 

 bringing them into use in their works. 



It is now over thirty years since I relinquished the card- 

 making business in Manchester, which was subsequently 

 transferred to Mr. James Walton (a gentleman highly 

 distinguished as an able mechanician, and the author 

 of several original and valuable inventions), by whom 

 several further improvements were made in the card- 

 machine, some of them rendering it still more safe and 

 rapid in working. 



I may here observe, in conclusion, that several important 

 and well-known inventions of our own times will rank 

 higher in the annals of science than this of Mr. "Whitte- 

 more, especially those concerned with the vast moving 

 forces employed in large engineering works, the con- 

 trol of which forces requires a profound knowledge of the 



SER. III. VOL. III. L 



