%5S Cobalt, — Patents, 



COBALT. 



Those interested in the prosperity of our porcelain ma-» 

 nufacturcs will rejoice to be informed that a mine of very 

 excellent cobalt bus been discovered in this country. We 

 have been int'ornied by Mr. Hume of Long-Acre, to whom 

 a specimen has been submitted for examination, that on 

 analvsis he has found it to contain nearly 30 per cent, of 

 that metal. 



LIST OF PATENTS FOR NEW INVENTIONS. 



To Thomas Bayley, of Birmingham, for certain improve- 

 ments in sliding pulleys for window blinds, and for other 

 purposes. — Januar\' 15. 



To Peter Cox, of Fairford, in the county of Gloucester, 

 civil engineer, for certain iniprovements upon the thrashing 

 machine. — January 23. 



To Joseph Manton, of Davies-street, Berkeley-square, 

 gun-maker, for an improvement in telesco})es. — Jan. 23. 



To David Cock, of Dean-Street, Soho, in the county of 

 Middlesex, stert-otype manufacturer, for vessels of a new 

 construction, for melting and heating fluids. —Feb. 1. 



To Augustus Frederick de Heine, of Moor Lane, Fore- 

 Street, in the city of London, gent., for certain improve- 

 ments on printing and stamping-presses. — Feb": 1. 



To John Craigie, of Quebec, in our province of Lower 

 Canada, in North America, esq., now residing in Craven 

 Street, in the county of Middlesex, who in consequence 

 of communications made to him when residing abroad, and 

 certain inventions by himself, is in possession of a me- 

 thod of making an improved kitchen fire-place, — Feb. 1. 



To Stedman Adams, in the city of Hartford, in the state 

 of Connecticut, in North America, esq., at present residing 

 in Carey Street, Lincoln's Inn Fields, in the county of 

 Middlesex, for certain improvements on steam-engines, 

 and in distillation. — Feb. I. 



To William Muller, of the Hay Market, in the county 

 oi Middlesex, for certain improvements in the construc- 

 tion of pump.=. — Feb. ')9., 



To John Slater, of Birmingham, in the county of War- 

 wick, coach-spring maker, for an improvement in hanging 

 and securing grind stones from breaking in the middle 

 or centre. — Feb. 12. 



To William Doughty, of Birmingham, in the county of 

 Warwick, engineer, for his improvement in the combina- 

 tion of wheels for gaining mechanical power. — Feb. 12. 



To George Wyke, esq., of the city of Bath, for certaia 

 J ' ' improve-- 



