ENGINE No. 76. 



Four valve, 20" x 50." Speed, 64 revolutions per minute. 



This engine has four slide valves, all operated by means of 

 a train of gears. The diagram here given is presented as a 

 curiosity, showing the effect of admission of steam to the 

 cylinder subsequent to the cut-off, due to the rebounding of 

 the valve after it had once closed. The diagram was taken 

 from the crank end of the cylinder. 



ENGINE No. 76 



297 



