— 76 



Sliding Caisson 



36. Sliding caisson with lifting bridge and hydraulic ac- 



tion, with corresponding diagram (general plan). 



37. Sliding Caisson — Plans and section ( working 



drawings). 



38. Sliding Caisson— Longitudinal section and cross sec- 



tions. 



39. Sliding Caisson— Hydraulic machinery for working same. 



40. Floating Caisson— (general plan). 



41. Ditto. — Longitudinal- and end views. 



42. Ditto. -Longitudinal- and cross sections. 



43. Ditto. —Various plans. 



(Sheets 41, 42 & 43 are working drawings) 



Hydraulic Piping, Cranes, etc. 



44. Arrangement of the cranes, hydraulic piping, roads, etc., 



belonging to the quay wall. 



45. General plan of the pressure- and return mains, and 



the water supply for the graving dock. 



46. Fixed crane of 30 tons. 



47. Moveable crane of 5 tons. 



48. Ditto. of l'/o tons. 



49. Hydraulic capstan of 5 and 10 tons. 



50. Ditto. ditto, of 1 tons. 



Tidal Basin 



51. State of the dredging on 31st. August 1903. Scale 



1: 101 m. 



52. Details of the slopes, ladders, mooring posts, buoys, etc. 



Quay Wall 



54. Construction of the cofferdam made for the purpose of 



building the quay wall in the dry. 

 5.""). Plans, elevations, and sections. 



