| Description | Other Machinery made by Boulton & Watt (12 items).
1438. Mine Winding Apparatus. 1783, 1787, 1788, 1796, 1805, not dated. 12 items.
Drawing of a coal winder powered by a water wheel - by Matthew Boulton, not dated.
Side view of a winding barrel and spiral marked "Equalizer for 160 fathoms…", Jun. 1783.
Messrs. Wilkes No. 2, Oakthorpe Colliery (see also Portfolio 5/20):
Plans and section of the winding spiral, May 1787.
Ecton Mine (see also Portfolio 5/34):
Vertical view of the spiral, 1788.
View of the underside of the winding barrel, 1788.
John Christian, Workington, No. 1 (see also Portfolio 5/36):
Vertical view of the winding spiral, May 1788.
Thomas Barnes (see also Portfolio 5/169):
Front view of winding barrel and engine frame for Thomas Barnes [for Walker Colliery?] - press copy drawing, Mar. 1796.
George Houstoun, Johnstone (engine ZA, see also Portfolio 5/750):
Parts of winding planes and apparatus, Jun. 1805 (with 2 notes about parts for Sir John Hope attached).
Sheet of calculations for a winding spiral (in John Southern's hand), not dated.
Unmarked side view of a winding barrel and spiral, not dated.
Unmarked vertical view of a winding spiral, not dated.
Graph for a mine winding spiral, not titled or dated [in James Watt's hand].
Drawings of winding planes and spirals designed by Boulton & Watt. These were powered by Boulton & Watt engines, and were usually designed at the same time. Further drawings of the winding apparatus will be found in the relevant engine portfolios. |