List of Patents for New Inventions. 189 



To John Maberlv,orBcdford-row,in the county of Middle- 

 sex, gentleman ; for his method of making and constructing 

 tents, polcj, and other machinerv, so as to expel and carry 

 o(t noxiouB and contaminated air by a readier and more ef- 

 fectual ventilation than can be accomplished by the tents 

 in common use. March 7- 



To Elizabeth Bell, of Blackheath, in the county of Kent, 

 spinster; for certain improvements in an artificial method 

 of sweeping chimneys, and an improvement in the preparing 

 and manufacturing pieces used for the constructing the chim- 

 neys invented by her, so as to render the said pieces capable 

 of being better joined t'bgether, and more advantageously 

 used for conveying smoke, water, and other fluids or bodies 

 in a divided or pulverulent state in any required direction; 

 and also for certain methods, machinery, and apparatus, 

 useful or necessary for manufacturing such pieces, and ap- 

 plicable for the purpose of forming various other articles of 

 pottery. March 7. 



To John Houlditch, of Long Acre, in the county of Mid- 

 dlesex, coach-maker; for improvements in the construction 

 of four-wheeled carriages of different descriptions. March 7. 



To Henry Charles Christian Newman Clerk, rector of 

 St. John's Capisterre, in the island of St. Christopher ; for 

 a machine applica'jle to mills in general and to various other 

 purposes, but more particularly adapted to the cattle mills 

 employed for expressing the juice of the sugar-cane, by 

 greatly augmenting their power and execution with fewer 

 cattle, and by increasing the number of the revolution* of 

 the spindle and rollers in the proportion of ten to one of the 

 present mills, or even more if required, by means of a ring, 

 made cither of hard wood or cast iron, round the mill, and 

 by an entirely new construction of the axis in peritrocliis, 

 the lever, and a lantern-wheel or pinion, the spindles or 

 teeih of which turn a cog-wheel on the spindle of the mill; 

 which axis in pcrilrochis, lever, and lantern-wheel or pinion, 

 are also constructed so as to revolve together with two distinct 

 motions ; that is to say, a rotatory one round their own axis, 

 and a progressive circumvolutionary one on the ring, con- 

 stantly acting upon and impelling the cog-wh(;el and spin- 

 dle with their separate and united forces. March J. 



MKTEORO- 



