Catalogue. — philosophy and arts, practical mechanics. 197 



Bourg^s's lantern capstan. Mach. A. II. 7. 

 J. Bernoulli on the capstan. A. P. Pr. V. i. 

 On the capstan. A. P. Pr. V. ii. 

 ■ Polen on the capstan. A. P. Pr. V. iii. 

 Ludot on the capstan. A. P. Pr. V. iv. 

 DepOntis on the capstan. A. P. Pr. V. v. 

 Fenel on the capstan. A. P. Pr. V. vi. 

 Lorme on the capstan. A. P. Pr. V. vii. 

 fEmerson's mechanics, f. 248. 

 Eckhardt's double capstan with a catch. A. 



Petr. 1781. V. i. H. 38. 

 Ximenes on the capstan. Soc. Ital. I. 6l3. 

 Ilotchkis's patent mechanical power. Rep. 



XIV. a4. 



a double capsSn. -' 



Lalande's capstan. Montucla and Lai. IV. 



585. 

 Hamilton's capstan. Rep. ii. II. 126. 



The obliquity of the surface to the axis is 9° 3o', so that 

 the messenger easily slides up. 



On the compound capstan. Nich. VII. 50. 

 Hawkins on the compound capstan. Nich. 



VIl. 267. 



Plucknett's patent capstan has levers and inclined planes 

 " to surge the rnessenger." 



Pullies. 



Lahire on pullies. A. P. IX. Il6. 



Parent on the friction and equilibrium of 



pulhes. A. P. 1704. 206. H. 96. 

 Leup. Th. M. G. t. 8 . . 10. Th. Machinarium. 



t. 35 . . 39. 

 Bessonius's complicated pullies. Leup. Th. 



Machinarium. t. 37. 

 Smeaton's new tackle. Ph. tr. 1751. p. 494. 

 Emerson's mechanics. F. I96 . . 198. 

 E. M. A. VI. Art. Poulieur. 

 Taylor's patent pullies. Repert. VI. 93. 



Of metal 01 cross grained wood. 



Garnett's pullies. Cavall. N. Ph. I. pi. 8. 

 f. 2. 



a pulley with ropes not parallel is called by seamen a 

 twigg. 



Fixed Inclined Planes. 



See Roads. 



Inclined plane with a series of carriages. 

 Leup. Th. Hydrot. t. 22. 



Belidor. Arch, Hydr. II. ii. pi. 27. 



Fulton's patent machine for conveying boats. 

 Repert. VII. 222. 



Fulton on canal navigation. 



Egerton on the Duke of Bridgewater's in- 

 clined plane. S. A. XVIII. 288. Nich. IV. 

 486. Ph. M.IX. 30. Repert. XVI. 153. 



Wedge. 



Varignon on the wedge. A. P. II. 117. 

 Lahire on the wedge. A. P. IX. 120. 



Screws. 



See Presses. 



Lahire on the screw. A. P. IX. 129. 141. 

 Varignon on the screw. A. P. 1699. 91. H. 



111. 

 Leup. Th. M. G. t. 18 . . 20. Th. Machina- 

 rium, t. 45 . . 48. 

 Lemaire on raising weights by the screw. 



A. P. 1726. H. 71. Mach. A. IV. 179- 

 Hunter's way of applying the screvV. Ph. tr. 



1781. 58. Nich. VH. 50. 

 E. M. A. VHLArt.Vis. 

 Making screws. E. M. PI. IV. Tourneur. 



pi. 8. 

 On the constiTiction and uses of the screw. 



Nich. I. 158. 

 Pocock's patent machine for raising heavy 



bodies. Repert. XIII. 79. 



