43, Frame plate from end to end of engine. 44, Iron buffer-beam. 46, Cylinders. 50, Horn block, to carry axle-box and brass. 51, Axle-box and brass. 52, Slide bars. 53, Connecting-rod. 54, Driving axle. 55, Big end of driving axle. 56, Arm of driving axle. 59, Valve-spindle. 60, Valve-rod guide. 61, Pump. 76, Hand brake. 85, Brake blocks. 88, Trailing axle. 89, Leading axle. 90, Piston rod. 91, Piston head, held on the rod by a brass nut. 92, Backway eccentric rod. 93, Frontway eccentric rod. 94, Eccentric Straps. 95, Eccentric sheaves. 96, Tire. 97, Lip on tire. 98, Brake irons. 99, Foot plating. 100, Transverse stay. A, Water space between inside and outside fire boxes. B, Slide-block with end of pump-ram screwed into the end. C, Link motion (see 57, inside view). D, Slide valve rod, working guide. H, Inside journal, showing how the axle is supported inside of frame plates. I, Cross-head, solid, with piston rod.
[Illustration: UNDERNEATH THE LOCOMOTIVE--HALF WIDTH PLAN.]
15, stays in walls of fire-boxes. 18, stays from crown plate to covering plate. 19, tubes. 23, smoke-stack. 40, ash-pan. 54, crank shaft. 55, big end of crank-shaft. 56, arm of big end. 34, dome.
[Illustration: IN FRONT OF THE LOCOMOTIVE CROSS-SECTION.]
A, water space. F, nave of wheel. P, P, splashers over driving wheels. R, right side of engine. L, left side of engine.
75, steam brake handle. 33, whistle handle. 23, smoke stack. K, K, weather glasses. O, speed indicator. E, conductor's bell. N, oil for cylinder. X, blower handle. R, right side of engine. L, left side of engine. M, M, gauge glasses.
Here are a few interesting points about this particular locomotive which we have just been describing.
It is a single engine on six wheels--which are well distributed, with a large boiler of abundant steam generating power with cylinders of great capacity, and driving wheels of moderate diameter.
It is accompanied by a tender on six wheels, capable of holding a supply of 2,520 gallons of water, and 40 cwt. of coal.
Notwithstanding its great capacity, this tender is so low that a tall man may stand on top of the coal without fear of being knocked down by bridges.
There are over 47 tons of metal in the locomotive and tender.