CATALOGUE OF THE MECHANICAL ENGINEERING COLLECTION. 



29 



engine, shuts its own valve, and stops with no power to move again 

 until actuated by the operation of the other engine. 



Cat. No. 251,300 U.S.N.M. 



Model of Georg'e H. Corliss Steam Pumping Engine. U. S. Patent, No. 

 215803, May 27, 1879. Transferred from United States Patent Office. 



The interesting feature of this engine is an oscillating lever hav- 

 ing a fixed axis at one end and a connection with the crank and flv- 



FIG. 9. MILLER ROTARY ENGINE, 1859. 



wheel at the other end which is in combination with a reciprocating 

 pump piston or plunger connected to the above mentioned lever at a 

 convenient point between its ends. It gives to the crank in its con- 

 nection an increased stroke as compared with that of the pump. 



A portion of the steam power applied to the pistons is directly 

 utilized in working the pump plungers by means of a continuous 

 piston rod which extends from the cylinder into and through the 



