CIIAI-. II. AND MILLWRIGHT. 327 



I >reeisi< >ii, lie expressly invented machinery for their manu- 

 i'arture a thing that had not before been attempted- 

 all such wheels having, until then, been cut by hand at 

 great labour and cost. By means of this new machinery, 

 ;is much work, and of a far better description, could be 

 cut in a day as had before occupied at least a fortnight. 

 The result was, that the new silk-mill, when finished, 

 was found to be one of the most complete and economical 

 arrangements of manufacturing machinery that had up 

 to that time been erected in that neighbourhood. 



After the Congleton silk-mill had been completed, we 

 find Briiidley engaged in erecting flint-mills in the Pot- 

 teries, of a more powerful and complete kind than any 

 that had before been tried, but which were rendered 

 necessary by the growing demands of the earthenware- 

 manufacture. One of the largest was that erected for 

 Mr. Thomas Baddely, at a place called Machins' of the 

 Mill, near Tunstall. We find these entries in Brindley's 

 pocket-book : " March 15, 1757. With Mr. Badley to 

 Mather so about a now flint mill upon a windey day 1 day 

 3s. Gd. March 19 draing a plann 1 day 2s. 6d. March 23 

 draing a plann and to sat out the wheel race 1 day 45." 

 This new mill was driven by water-power, and the wheel 

 both worked the pumping apparatus by which the adjoin- 

 ing coal-mine was drained, and the stamping machinery 

 for pounding and grinding the flints. The wheel, which 

 was of considerable diameter, was fixed in a chamber 

 below the surface of the ground, and the water was con- 

 veyed to it from the mill-pool through a small trough 

 opening upon it at its breast, which kept the paddle- 

 !><> xes of the descending part constantly filled, without 

 any waste whatever, and thus, by the rotation of the 

 wheel, the pumps and stampers were effectually worked. 

 The main shaft was more than two hundred yards from 

 the mill ; and to work the pumps Brindley then invented 

 the slide rods, which were moved horizontally by a crank 

 at the mill, and gave power to the upright arm of a crank- 



