158 CATALOGUE.— PETILOSOPHr AVD ARTS, PRACTICAL MECHANICS. 



Jacks. Cries, Fr. 



Heronis barulcus, from a manuscript trans- 

 lation from the Arabic. Brugmans Com- 

 mentat. Gott. 1784. VII. M. 75. 



Perrault's balance jack. Mach. A. I. 5. 



Thomas's circular jack. Mach. A. I. 209. H. 

 37. 



Thomas's jack applied to a cart. Mach. A, 

 II. 39. 



Gobert's jack. Mach. A. I. 213. 215. 



Dalesme's jacks. A. P. 1717.301. 



Leup. Th. Machinarium.t. l6. 



Emerson's mech. f. 249. 



Staghold's screw jack. Bailey's mach. I. l68. 



E. M. Pi. I. 30. E. M. PI. III. Marechal 

 grossier. PI. 4. 



Mocock's jack. S. A. VIII. 180. Roz. 

 XXXIX. 



Person's jack moved by a lever, Pers. Re- 

 cueil. PI. 6. 



Cranes and Gins. 



Perrault's rope crane without friction. Mach. 



A. I. 13. Leup. Th. Machinarium. t. 14. 



15. 

 Thomas's jack applied to a crane. Mach. A. 

 • 11. 41. 

 Thomas's machine for raising weights. Mach. 



A. II. 131. 

 Resson's invention for lowering weights. 



Mach. A. III. 25. 

 Crane with screws. Leup. Th. Machinarium. 



t. 48. 

 Crane with a chain. Leup. Th. Machina- 

 rium. t. 40. 

 Crane with a perpetual screw. Leup. Th. 



Machinarium. t. 49. 

 Henry's machine. A. P. 1725. H. 103. Mach. 



A. IV. 141. 

 Auger's machine. A. P. 1726. H. 71. 



Montigni's machine. A. P. 1728. H. 109, 



Mach. A.V.55. 

 Desaguliers on the crane. Ph. tr. 1729. I94. 

 Desaguliers on Perrault's crane and axis. 



Ph. tr. 1730. 222. 

 Guyot's crane. Mach. A. VI. 167. 

 Loriot's safe crane. A. P. 1755.H. 144. 

 Loriot's crane acting by the tide. A. P. 1761. 



H. 159. 

 Loriot's tumbler crane. A. P. 176I. H. I60. 

 Emerson's jnech. F. 193 . . 195, 227, 233, 



242 . . 244, 250, 257, 298. 

 Vaucanson's weighing crane. A. P. 1763. 



326. H. 131. 

 Ferguson's crane with four powers. Ph. tr. 



1764. 24. 

 Berthelot's crane. A. P. 1768. H. 13Q. 

 Pinchbeck's walking wheel crane. Bailey's 



mach. 1. 146. 

 Bailey's mach. I. 183. 

 £. M. PI. I. 30. 



Praithwaite's crane. S. A. III. 159. 

 A portable crane. Ph. tr. 1790. PI. 11. 

 Andrews's weighing crane. S. A. X. 221. 

 White's crane, with an oblique walking 

 wheel and a break. S. A. X. 230. Repert. 

 III. 113. Enc. Br. 

 Johnson's double gibbed crane for letting 

 down the weight on different places. S. A 

 XL 173. 

 Dixon's bar for supporting the labourers in a 



crane. S. A. XI. 201. Repert. I. 34. 

 Hall's expanding crane, with a spiral groove. 



S. A. XII. 284. Ph. M. XVIIL 270. > 

 Davis's portable cart crane. S. A. XV. 278. 



Ph. M. V. 392. Repert. X. 273. 

 A perpetual screw for cranes. Repert. II. 

 312. 



Collins's elevator. Am. tr. IV. 5 19. Repert 

 XV. 26. 



A lever with pullies. 



