398 New Patents. [JMAi, 



T. Hancock, Goswel Mews, St. Luke's, patent cork-manufacturer, 

 for a new manufacture which may be used as a substitute for leather 

 and otherwise. — March 15. 



T. Hancock, Goswel Mews, for Improvements in making ships' 

 bottoms, vessels and utensils of diS'erent descriptions and various ma- 

 nufactures, and porous or fibrous substances, impervious to air and 

 water, and for coating and protecting the furnaces of different metallic 

 and other bodies. — March 15. 



T. Hancock, Goswel Mews, for improvements in the process of 

 making or manufacturing ropes or cordage and other articles from 

 hemp, flax, &c. — March 15. 



J. Colling, Lambeth, engineer, for improvements on springs and 

 other apparatus used for closing doors. — March 15. 



ll. B. Bate, Poultry, optician, for his improvement on the frames of 

 eye-glasses. — March 15. 



H. Nunn, and G. Freeman, Blackfriars-road, lace-manufacturers, 

 for improvements in machinery for making that sort of lace commonly 

 known by the name of bobbin net. — March 15. 



S. Brown, Saville-row, Middlesex, for his appai-atus for giving 

 motion to vessels employed in inland navigation. — March 15. 



J. Barlow, New Road, Middlesex, sugar-refiner, for his process for 

 bleaching and clarifying and improving the quality and colour of 

 sugars known by the name of bastard and piece sugars. — March J 5. 



W. Grisinthwaite, King's Place, Nottingham, for his improvement 

 in air-engines. — March 15. 



R. Whitechurch and J. Whitechurch, Star-yard, Cary-street, Mid- 

 dlesex, for an improvement on hinges for doors, &c. which will enable 

 the doors, &c. to be opened on the right and left (changing the hinges), 

 and with or without a rising hinge. — March 17. 



M. Cosnahan, Isle of Man, for a new apparatus for ascertaining the 

 way and leeway of ships, also applicable to other useful purposes. — 

 March 17. 



R. Hicks, Conduit-street, surgeon, for an improved bath. — March 22. 



F. Ronalds, Croydon, for a new tracing apparatus to facilitate the 

 drawing from nature. — March 23. 



R. Wilty, Kingston-upon-Hull, civil engineer, for an improvement 

 in the method of lighting by gas, by reducing the expense thereof. — 

 March 25. 



J. Martin Hanchelt, Crescent-place, Blackfriars, and J. Delvalie, 

 Whitecross-street, Middlesex, for an improvement in looms for mak- 

 ing cloths, silks, and different kinds of woollen stuffs, of various 

 breadths. — March 25. 



J. Manton, Hanover-square, gun-maker, for an improvement in shot. 

 —March 25. 



J. G. Uh-ich, Bucklersbury, London, chronometer-maker, for im- 

 provements on chronometers. — March 25. 



A. Jennins and J. Belteridge, Birmingham, japanners, for improve- 

 ments in the method of preparing and working pearl-shell into various 

 forms and devices, for the purposes of applying it to ornamental uses 

 in the manufacture of japan ware and of other articles. — March 29. 



