New Patents. 237 



To P. Descroizilles, Fenchurch-street, London, chemist, for certain 

 improvements in apparatus for (Economising fuel in heating water 

 and air applicable to various purposes. — 24th of April. — 6 months. 



To T. Cook, Blackheath Road, Kent, lieutenant in the Royal 

 Navy, for certain improvements in the construction and fitting up of 

 boats of various descriptions. — 24th of April. — 2 months. 



To J. Wilks, Blue Anchor, Bermondsey, Surrey, engineer, mill- 

 wright and machinist (one of the co-partners in the firm of Bryan 

 Donkin and Co., of the same place, engineers, millwrights, and machi- 

 nists), for an improvement in a part or parts of the apparatus for 

 making paper by machinery. — 28th of April. — 6 months. 



To T. Petherick, Penfullick, in the parish of Tywardreath, Corn- 

 wall, mine-agent, for machinery for separating copper, lead, and 

 other ores from earthy and other substances with which they are and 

 may be mixed, and which is more particularly intended to supersede 

 the operation now practised or used for that purpose, commonly 

 called Jigging. — 28th of April. — 6 months. 



To J. Walker, Weymouth-street, Middlesex, esquire, for an im- 

 proved cock for fluids. — 4th of May. 



To H. R. S. Devenoge, Little Stanhope-street, May Fair, Mid- 

 plesex, gentleman, for certain improvements in machinery for making 

 bricks. Communicated by a foreigner. — 8th of May. — 2 months. 



To M. Bush, Dalnonarch, Print Field, near Bonhill by Dumbar- 

 ton, North Britain, calico-printer, for certain improvements in ma- 

 chinery or apparatus for printing calicoes and other fabrics. — 24th of 

 May. — 6 months. 



To J. H. Bass, Hatton Garden, Middlesex, gentleman, for certain 

 improvements in machinery for cutting corks and bungs. — 3rd of 

 June. — 6 months. 



To J. Levers, New Radford Works, near the town of Notting- 

 ham, lace machine maker, for certain improvements in machinery for 

 making lace, commonly called bobbin net. — 8th of June. — 6 months. 



To G. V. Palmer, parish of St. Peter, Worcester, artist, for a 

 machine to cut and excavate earth. — 8th of June. — 6 months. 



To W. T. Haycraft, of the Circus, Greenwich, doctor of medicine, 

 for certain improvements in steam-engines. — 1 1 th of June. — 6 mo. 



To T. Brunton, Commercial Road, Limehouse, Middlesex, mer- 

 chant, and T. J. Fuller, of the same, civil engineer, for an im- 

 proved mechanical power applicable to machinery of different descrip- 

 tions. — 19th of June. — 6 months. 



To R. Hicks, Conduit-street, in the parish of St. George, Han- 

 over-square, surgeon, for an oeconomical apparatus or machine to be 

 applied in the process of baking, for the purpose of saving materials. 

 — 29th of June. — 6 months. 



To E. Turner, Gower-street, Middlesex, doctor of medicine, and 

 W. Shand, of the Burn in Kincairdineshire, esquire, for a new 

 method of purifying and whitening sugar or other saccharine matter. 

 — 29th of June. — 6 months. 



To M. Poole, Lincoln's Inn, gentleman, for certain improve- 

 ments in the apparatus used for certain processes of extracting mo- 

 lasses 



