List of Patents, 377 



manufacture of copper or other metallic rollers to be employed therein, 

 and in the machinery or apparatus connected with such manufacture." 

 —24th December 150. 



10. To James Forster, of Liverpool, merchant, *' improvements in 

 filtering water and other liquids." — Slst December 1850. 



11. To Francis Edward Colegrave, of Brighton, in the county of 

 Sussex, Esq., " improvements in the valves of steam and other engines, 

 in causing the driving-wheels of locomotive engines to bite the rails, and 

 also in supplying water to steam-boilers." — 31 st December 1850, 



12. To Thomas Brown, of Muscovy Court, Tower Hill, in the city of 

 London, gentleman, " improvements in machinery for raising and lower- 

 ing weights." — 31st December 1850. 



13. To Edward d'Orvillk, and John Partington, of Manchester, 

 in the county of Lancaster, manufacturers, ** certain improvements in 

 finishing thread or yarn." — 31st December 1850. 



14. To James Hill, of Staly bridge, in the county of Chester, cot- 

 ton-spinner, " improvements in, or applicable to, certain machines for 

 preparing cotton, wool, and other fibrous substances for spinning and 

 doubling." — 3d January 1851. 



15. To Henry Bessemer, of Baxter House, St Pancras Road, in the 

 county of Middlesex, engineer, " certain improvements in apparatus 

 acting by centrifugal force, in the manufacture of sugar, and other im- 

 provements in the treatment of saccharine matter by such apparatus." — 

 6th January 1851. 



16. To LuciEN ViDiE, of 14 Rue du Grand Chantier, Paris, in the 

 republic of France, French advocate, " certain improvements in mea- 

 suring the pressure of air, steam, gas, and liquids." — 8th January 1851. 



17. To John Coope Haddan, of Bloomsbury Square, in the county of 

 Middlesex, engineer, '* improvements in the manufacture of railway car- 

 riages and of railway wheels, and also of panels for carriages, and other 

 purposes." — 9th January 1851. 



18. To Samuel Hall, late of Basford, near Nottingham, engineer, 

 " improvements in the manufacture of starch and gums, and in furnaces 

 and steam-boilers, with safety apparatus to be used in such manufactures, 

 and for other purposes." — 10th January 1851. 



19. To John Corry, of Belfast, in the kingdom of Ireland, damask 

 manufacturer, '* improvements in the machinery or apparatus for weaving 

 figured fabrics, which machinery or apparatus is also applicable to other 

 purposes for which Jacquard apparatus is or may be employed." — 13th 

 January 1851. 



20. To John Ranson St John, of the city and state of New York, in 

 the United States of America, engineer, ** improvements in the process 

 of, and apparatus for, manufacturing soap;" being a communication. — 

 15th January 1851.- 



21. To Joseph Gibbs, of Devonshire Street, in the county of Middle- 

 sex, civil- engineer, " improvements in the manufacturing paints and 

 cements, and panels or surfaces on which paints or cements are to be, or 



