47- New Patents. [Dec. 



receipt, which he informs me is followed in making Biddery 

 ware in some parts of India : — 



Copper 16 oz. 



Lead 4 



Tin 2 



Melt all these together ; take 3 ounces of the alloy, and melt 

 them with 16 ounces of zinc. This mixture constitutes the 

 alloy of which Biddery ware is made. To give it a black colour, 

 wash the surface with a solution of 1 oz. of sal-ammoniac, \ oz. 

 of saltpetre, ^ oz. of common salt, \ oz. of blue vitriol, and 

 dip the Biddery ware into this solution. 



IX. Gong. 



Gongs are manufactured in Canton in an open manner. The 

 largest kinds are made in one of the interior provinces of China, 

 They are not made in any part of India. 



Article XIII. 



List of Patents. 



John Braziix, of Great Yarmouth ; for a machine for 

 working capstans and pumps on board ships, which machine 

 may also be applied to various other useful purposes. Dated 

 Sept. 4, 1813. 



John Westwood, of Sheffield ; for a new method of em- 

 bossing ivory by pressure. Dated Sept. 9, 1813. 



Frank Parkinson, of Kingston-upon-Hull, distiller ; for 

 a still and boiler for preventing accidents by fire, and for pre- 

 serving spirits and other articles from waste in the operation of 

 distilling and boiling. Dated Sept. 4, 1813. 



Henry Liston, Minister of Ecclesmachen, Linlithgow; 

 for certain improvements on the plough. Dated Sept. 23, 1813. 



Henry Osburn, Whitmore-house, Warwickshire ; for a 

 method of making tools for tapering of cylinders of different 

 descriptions, made of iron, steel, metal, or mixture of metals; 

 and also for tapering bars of iron, steel, metal, or mixture of 

 metals. Dated Oct. 15, 1813. 



Robertson Buchanan, Glasgow, civil engineer ; for certain 

 improvements in the means of propelling vessels, boats, barges, 

 and rafts, which may also be applied to the moving of water- 

 wheels and wind-mills, the raising of water, tbe dredging, 

 cleansing, or deepening of rivers and harbours, and the im- 

 pelling of other machinery. Dated Oct. 18, 1813. 



