List of Patents. — History of the Weather. 151 



arc, its being formed out of four pieces of elm which are bolted 

 and riveted together, which is much stronger and more durable 

 than morticing out of a solid block of elm. 



The pin and cog being riveted vvith a counter plate in the 

 sheave, gives it a considerable advantage as to the leverage, to- 

 gether with the pin turning, consequently wearing round, which 

 adds to the durability, together with the sheave's working on the 

 ends of the pin, which causes it to run with equal velocity on the 

 sides as perpendicular, nor is the cog so likely to wear loose 

 when the pin is fixed in the cog as otherwise in ihe common 

 block which wears the upper part of the pin only, and which 

 causes a very great friction ; the strength and durability over the 

 common block are in the proportion as 2 to 1. 



The above blocks are manufactured by the proprietor, Mr. 

 Sibley, Old Gravel-lane, London Docks. 



LIST OF PATENTS FOR NEW INVENTIONS. 



To Marc Isambard Brunei, of Chelsea, Middlesex, engineer, 

 for certain improvements in making stereotype plates. — 25th 

 Jan. 1820. 



To Phillips London the younger, of Cannon- street, London, 

 for his method of destroying or decomposing the offensive va- 

 pour arising from animal or vegetable matter when heated. — 

 25th Jan. 



To Daniel Treadwell, of the United States of America, but 

 nowof Newman's-court, Cornhill, London, for certain improve- 

 ments in the construction of printing-presses. — 25th Jan. 



To John Moody, of Margate, Kent, for an inkstand contain- 

 ing carbonaceous and extractive matter in a dry state, which, 

 with the addition of water only, will supply ink. — 25th Jan. 



To George Shoobridge, of Houndsditch, London, and William 

 Shool)ridge, of Marden, Kent, for a substitute for flax or hemp, 

 and for manufacturing the same into articles for which flax or 

 hemp are used. — 5th Feb. 



To James Huggett, of Hailsham, Sussex, for a machine to be 

 attached to carriages as a substitute for a drag, to regulate the 

 speed, and to prevent accidents in going down-hill, or in other 

 perilous situations. — 10th Feb. 



HISTORY OF THE WE.-VTHER. 



We comply with the request of a meteorological correspon- 

 dent in giving a place to the following notices of the weather at 

 different periods since the Christian era ; agreeing perfectly with 

 him that such data are of essential consequence to the formation 

 of any general conclusions on this hitherto very unsettled branch 

 of inquiry. 



K 1 " It 



