EXPLANATION OF THE PLATES. 395 



Ft. In. 



Brass tubes, diameter outside If 



Distance of centres ...... 2 2 



Diameter of cylinders 



Length of stroke . ... 



Distance of centres 27 



Steam ports 7 in. x If in. 



Diameter of pumps .... 2 4 



Diameter of wheels (2 pair coupled) . 46 



Ditto wheels, one pair .... . 36 



Distance of centres of coupled wheels ... 46 



Centre of axle from fire-box .... 1 3 



Diameter in middle ....... 05^ 



Diameter of crank pin ... 5f 



Length of ditto .... .03 



Diameter of inside bearings 5f 



Length of ditto two 2f in., and two 3 



Diameter of outside bearings ..... 03^ 



Length of ditto 5f 



Diameter of plain axle, including coupled wheels . 4^ 



Ditto where wheels are on ..... 4 T 3 ff 



Ditto outside bearing ....... 03^ 



Length of ditto . . . . . . . . Si- 

 Distance apart 5 6^ 



Springs' length ........ 2 Q\ 



Breadth ......... 03 



Depth 2| 



Number of plates, 8. 



Plain axle for small wheels, diameter in middle . . 3| 



Diameter where wheels are on .....' 4 



Diameter of bearing ....... 03^ 



Length of ditto 5f 



Length of frame (extreme) 170 



Breadth of ditto 6 3f 



Depth of ditto 07 



Thickness 04 



For description of parts, see Plates LXV., LXVI., LXVII. A., and LXVII. B. 



