Lint of Patents. 203 



niilai* compositions possessing the useful properties of hardness, colour, 

 and indestructibility when exposed to damp." — 7th May 1041. 



23. To David Walther of Angel Court, Tliro^morton Street, in the 

 city of London, merchant, beinj^ a communication from abroad, " certain 

 improvements in the methods of purifying vegetable and animal oils, fats, 

 and tallow, in order to render those substances more suitable for soap- 

 making or for burning in lamps, or for other useful purposes, part of which 

 improvements are also applicable to the purifying of the mineral oil or 

 spirit commonly called petrolium or naphtha, or coal-tar, or spirit of coal- 

 tar."— 7th May 1841. 



24. To James Whitelaw and George Wiiitelaw, engineers, resid- 

 ing in Glasgow, in the county of Lanark, Scotland, "a new mode of pro- 

 pelling vessels through the water, with certain improvements in the steam- 

 engines, when used in connection therewith, parts of w hich improvements 

 are applicable to other useful purposes." — 10th May 1841. 



25. To Thomas Lawes of Canal Bridge, Old Kent Road, in the county 

 of Surrey, feather-factor, being partly a communication from abroad, and 

 improvements made by himself, " certain improvements in the method 

 or process, and apparatus for cleansing and dressing feathers." — 10th May 

 1841. 



26. To Angier March Perkins of Great Coram Street, in the county 

 of Middlesex, engineer, " improvements in apparatus for heating by the 

 circulation of hot water, and for the construction of pipes or tubes for 

 such and other purposes." — 12th May 1841. 



27. To George Dacres Paterson of Truro, in the county of Cornwall, 

 Esq., " the following improvements in curvilinear turning, that is to say, 

 a rest adapted for cutting out wooden bowls and a self-acting slide-rest 

 for other kinds of curv'ilinear turning." — 12 th May 1841. 



28. To William Kenworthy of Blackburn, in the county of Lancas- 

 ter, spinner, and James Bullough of the same place, overlooker, " certain 

 improvements in machinery or apparatus for weaving." — l7th May 1841. 



29. To Christopher Dumont of Mentz, in the kingdom of Germany, 

 but now of Mark Lane, in the city of London, being a communication from 

 abroad, " for improvements in tho manufacture of metallic letters, figures, 

 and other devices." — 17th May 1841. 



30. To John Paley junior, of Preston, in the county or Lancaster, 

 manufacturer, *' certain improvements in looms for weaving." — 20th May 

 1841. 



31. To Edward Henshall of Huddersfield, in the county of York, 

 carpet-manufacturer and merchant, " certain improvements in making, 

 manufacturing, or producing carpets and hearth-rugs." — 24th May 1841. 



32. To William Petrie of Croydon, in the county of Surrey, gentle- 

 man, " a mode of obtaining a moving power by means of voltaic electricity 

 applicable to engines, and other cases where a moving power is required.'' 

 —24th May 1841. 



33. To Moses Poole of Lincoln's Inn, in the county of Middlesex, 

 gentleman, being a connnnnication from abroad, " improvements in the 

 manufacture of fabrics by felting." — 24th May 1841. 



34. To William Joest of Ludgate Hill, in the (jity of London, mer* 

 chant, being a communication from abroad, " improvements in propelling 

 ^estielsi"— 24lh May 1841. 



