218 List of Fatents. 



11. To John Kutuven and Morris West Ruthven of Edinburgh, 

 civil-engineers, for an invention of " improvements in boilers for generating 

 steam, in economizing fuel, in propelling vessels by steam or other power, 

 and ventilating vessels, and wliicli may be applied to mines or buildings." — 

 28th March 1839. 



12. To John Grav of Liverpool, in tlie county of Lancaster, engineer, 

 lor an invention of" certain improvements in steam-engines, and apparatus 

 connected therewith ; which improvements are particularly applicable to 

 marine engines for propelling boats or vessels : and part or parts of which 

 improvements are also applicable to locomotive and stationary steam- 

 engines, and other purposes."— 29th March 1839. 



13. To William Hale of Greenwich, in the county of Kent, for an in- 

 vention of " improvements in steam-engines, and apparatus connected 

 therewith, and in machinery for p-opelliiig vessels ; part of which improve- 

 ments are applicable to raising or forcing fluids."— 2d April 1839. 



14. To William Henry Porter of Ihissia Row, Milk Street, Cheap- 

 side, in the city of London, warehouseman, for an invention of " improve- 

 ments in anchors."— 2d April 1 839. 



15. To Thomas Adamson of Dundee, iu the county of Forfar, North 

 Britain, ship-builder, for an invention of " certain improvements in the ma- 

 chinery employed in turning windlasses." — 2d April 1839. 



16. To Robert Logan of Trafalgar Square, in the county of Middlesex, 

 for an invention of a " new cloth or cloths constructed from cocoa-nut fibre, 

 and certain improvements in preparing such fibrous material for the same 

 and other purposes." — 3d April 1839. 



17. To John Bourne of the city of Dublin, engineer, for an invention "of 

 " certain improvements in steam engines, and in the construction of boilers, 

 furnaces, and stoves." — 16th April 1839. 



18. To Job Cutler of Lady Poole Lane, Spark Brook, in the parish of 

 Aston, in the borough of Birmingham, in the county of Warwick, gentleman, 

 for an invention of " improvements in combination of metals applicable to 

 the making of tubes or pipes, and to other purposes, and iu the method or 

 methods of making tubes or j^ipes tlierefrom ; whicli improved method or 

 methods is or are applicable to the making of tubes oi- pipes from certain 

 other metals and combinations of metals." — 17th April 1839. 



19. To John Woolhich of Birmingham, in the county of Warwick, pro- 

 fessor of Chemistrj', for an invention of " an improved process of manufac- 

 turing carbonate of lead, commonly called wliite le:ul." — 17th April 1839. 



20. To John IIillard, for an invention, communicated by a foreigner 

 residing abroad, of " certain improvements in machinery or apparatus for 

 making or manufacturing screws." — 24th April 1839. 



21. To James N/smyth of Patricroft, near Manchester, in the county of 

 Lancaster, engineer, for an invention of " certain improvements applicable 

 to the bearings or journals of locomotive and other steam-engines ; wliich 

 improvements are also applicable to the bearings or journals of machinery 

 in general."— 24th April 1839. 



22. To George Price of Cornhill, in the city of London, gentleman> 

 for an invention communicated by a foreigner residing abroad, of " im- 



