416 List of Patents. 



20. To Benjamin Biram of Wentworth, in the county of York, colliery- 

 viewer, " certain improvements in the construction and application of ro- 

 tary engines." — 11th August 1842. 



21. To William Hancock the younger, of Amwell Street, in the county 

 of Middlesex, gentleman, " certain improvements in combs and brushes." — 

 16th August 1842. 



22. To John Anthony Tielens of Fenchurch Street, in the city of 

 London, merchant, being a communication from abroad, " improvements in 

 machinery or apparatus for knitting." — 22d August 1842. 



23. To Job Cutler of Lady Pool Lane, in the borough of Birmingham, 

 gentleman, " improvements in the construction of tubular flues for steam- 

 boilers, and in the manufacture of tubes for such and other purposes." — 23d 

 August 1842. 



24. To Henry Barclay of Bedford Row, in the county of Middlesex, 

 dentist, '' a composition or compositions applicable as tools or instruments 

 for cutting, grinding or polishing glass, porcelain, stoneSj metals, and other 

 hard substances." — 25th August 1842. 



25. To William Edward Newton of the Office for Patents, 06 Chan- 

 cery Lane, in the county of Middlesex, civil engineer, being a communica- 

 tion from abroad, " improvements in machinery or apparatus for making or 

 manufacturing screws, screw -blanks and rivets." — 31st August 1842. 



26. To Eugene de Varroc of Bryanstone Street, Portman Square, in the 

 county of Middlesex, gentleman, " apparatus to be applied to chimneys to 

 prevent their taking fire, and for rendering sweexiing of chimneys unneces- 

 sary." — 1st September 1842. 



27. To Thomas Marsden of Salford, in the county of Lancaster, ma- 

 chine-maker, and Solomon Eobinson of the same place, flax-dresser, " im- 

 provements in machinery for dressing or hackling flax and hemp." — 1st Sep- 

 tember 1842. 



28. To Samuel Morand of Manchester, merchant, " improvements in 

 machinery or apparatus for stretching fabrics." — 1st September 1842. 



29. To William Henry Kempton of South Street, Pentonville. in the 

 county of Middlesex, gentleman, " improvements in the manufacture of 

 candles."— 2d September 1842. 



30. To John George Hughes of No. 158 Strand, in the county of Middle- 

 sex, general agent, " a new application of telegraphic signals, and the mode 

 of applying the same." — 2d September 1842. 



31. To Joseph Wiiitworth of Manchester, in the county of Lancaster, 

 engineer, *' certain improvements in machinery or apparatus for cleaning 

 roads, and which machinery is also applicable to other similar purposes." — 

 —2d September 1842. 



32. To John Thomas Betts of Smithfield Bars, in the city of London, 

 gentleman, being a communication from abroad, *' improvements in cover- 

 ing and stopping the necks of bottles and other vessels." — 8th September 

 1842. 



33. To IsHAM Baggs of Wharton Sti'cet, in the county of Middlesex, 

 chemist; " improvements in obtaininnr motive power by moans of carbonic 

 acid."— 8th September 1842. 



