346 



CATALOGUE. HYDRAULIC INSTRUMENTS AND MACHINES, 



Euler on fountains. N. C. Petr. VI. 379. 



Bossut Hydrodynamiquc. " 



Pipes and fountains. E. M. A. III. Art. Fon- 



tainicr. 

 Finding springs. E. M. A. VII. Art. Sources. 

 Siphon. E. M. A. VII. Art. Syphon. 

 Pipes. E. M. A. VIII. Art. Tuyanx. 

 Darwin on an artificial spring. Ph. ' tr. 



1785. 1. 



Some pipes being fixed so as to pass through a stratum of 

 clay into a lower stratum, they brought the water above the 

 surface, and discharged 3 or 4 hogsheads in 24 hours. 



Ferrari on the distribution of waters. Soc, 

 Ital. VII. 157. 



On pipes. Leipz. Intelligenz blatt. 1794. 159. 



Liingsdorfs Hydr. PI. 4. 



Grossart on manufacturing elastic gum. Re- 

 pert. I. 70, 131. 



Vulhamy on the means employed to obtain 



an overflowing well. Ph. tr. 1797. 325. 



Nich. 11.276. Repert.X. 181. 



The water rose At first mixed with sand, which hardened 

 and stopped it ; and when this was removed, the same hap- 

 pened again. At last by raising the sand out of the water 

 by means of an iron box, the water was made to overflow, 

 so that 40 gallons were discharged in a minute. 



Venturi on the motion of fluids. 

 Hornblower's mode of laying waterpipes. 



Repert. X. 251. 

 Wilkinson's patent pipes. Repert. XVI. 92. 

 Wright on preventing the freezing of water 



in pipes. Ph. M. XIX. 147. 

 Barber on preventing the freezing of water 



in pipes. Ph. M. XX. 209- 



The best aperture for a jet is about i^ inch : such a jet 

 rites 70 feet when the height of the reservoir is,'loo. Cavallo 

 N. Ph. 



At Petersburg there are two jets 9 inches in diameter 

 that rise 60 feet. Robison. 



Desaguliers says, that 140 feet of 7 inch lead pipe require 

 a thickness of | inch. Belidor, that 60 feet Fr. of la inch 

 pipe require half an inch. If we multiply the length in 



feet by the diameter in inches, the thickness must be about 

 1^55 of the product, in inches. 



Appendages to Pipes. Valves, 

 Stopcocks, and Filters. 



Papin's pneumatic filter. Birch. IV. 366. 

 Amontons on valves. A. P. 1703. H. 95. 

 Amy's filtering machines. A. P. 1745. H. 



82. 1748. H. 121. Mach. A. VII. 280. 

 Desaguliers. Ph. tr. 17'i6. XXXIV. 



Describes the apparatus for discharging air by tall pipes : 

 objects to a valve with cork, supposing that it will not open: 

 but the orifice may be made very small. 



Valves. Belidor Arch. Hydr. If. i. 122. PI. 



n. 8. Valve unequally divided by an axis. 



Pl.n.31. 

 Preaux's tap for drawing wine. A. P. 1763. 



H. 146. 

 Deparcieux's trapsfor drains. A. P. 1767. H. 



133. 

 Westgarth's valve. S. A. V. 192. 

 Bramah's patent watercock. Repert. 1.361. 

 Bramah's patent apparatus for drawing off 



liquors. Repert. IX. 361. 

 Hempel's patent filtering vessels. Repert. II. 



230. 

 Strong's patent for improved pistons and 



valves. Repert. VII. 373. 



T valves and screws. 

 Collier's apparatus for filtering. Ph. M. VI. 



240. 



Peacock's patent for filtering. Repert. XI. 



221. 

 By ascent. 



Filtering wells. Repert. XVI. 331. 



Filtering machines. Gilb. XIII. 108. 



A joint for steam tubes. Nich. 8. IV. 107. 



Harman's filter. Nich. VIII. 126. 



Parrot's filter. Nich. IX. 40. 



Sir H. Englefield's filter, with sand. Nich. 



IX. 95. 



