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POPULAR SCIENCE MONTHLY. 



The actual construction of the engine is better shown in Fig. 1G, in 

 which A A are the cylinders, B is the steam chest and G G are the 

 valve rods. The piston rods connect with the crossheads C. The 

 connecting rods D transmit motion from the latter to the cranks E, 

 and thus rotate the shaft S. The link motions, by means of which the 

 direction of rotation is reversed, are at 1 1, and are operated by the 

 lever G, which is mounted upon the shaft F F. This shaft is directly 

 connected with the starting lever. The boiler feed pump is located 

 at M. The motion of the engine is transmitted to the rear axle of the 

 carriage by means of a chain that runs over the sprocket wheel L 

 located between the eccentrics K Iv. In Fig.- 15, this wheel is located 

 at D, and the chain F connects it with the axle sprocket E. 



$Mm 



Fig. 17. Amekicam Steam Avtomobii.k of 



Fig. 17 shows another American steam carriage. In this vehicle 

 the running gear is a complete truck, upon which the carriage body is 

 supported. The appearance of the truck with the body removed is 

 shown in Fig. 18. The boiler is of the tubular type and the double cyl- 

 inder engine is secured to its side. In this particular the construction 

 differs from that of the previously described carriage, for in that the 

 engine is attached to the cross-framing of the body of the vehicle. 

 Although the general appearance of the mechanism of these two car- 

 riages is very similar, there are many differences in the details of their 

 construction. In both, vertical tubular boilers are used, and the steam 

 is generated by the use of gasoline, which is burned in the vaporized 

 state in specially constructed burners. The engine in both cases is of 



