CATALOG OF THE MECHANICAL COLLECTIONS 21 



WATER MOTOR, 1879 



U.S.N.M. no. 309204; original patent model; transferred from the United 

 States Patent OflBce; not illustrated. 



This model was submitted with the application for the patent 

 issued to W. F. Eyster, of Chambersburg, Pa., November 4, 1879, 

 no. 221225. 



The model represents a vertical cylindrical water tube having a 

 vertical slot in one side through which the rim of a vertical water 

 wheel extends into the tube. The water wheel is supported and 

 inclosed in a flat circular chamber, which bolts to the side of the 

 water tube. A nozzle within the tube at the top directs the water 

 downward against the buckets of the wheel at about the height of 

 the center of the wheel. A plug cock at the top of the tube controls 

 the flow of water, and a funnel-shaped flange below the cock drains 

 any leakage into the water tube. One feature of the motor is that 

 the part of the water tube that carries the water wheel is free to revolve 

 about its vertical axis, so that the bulky part of the motor can be put 

 in the position most convenient to the machine operator. 



BROOKS WATER WHEEL, 1880 



U.S.N.M. no. 309689; original patent model; transferred from the United States 

 Patent Office ; not illustrated. 



This model was submitted with the application for the patent issued 

 to Edgar B. Brooks, of La Porte, Ind., February 10, 1880; no. 224270. 



This is a nicely made brass model of an inward-flow reaction tur- 

 bine having the register type of adjustable feed chutes or guide vanes 

 and a cylinder water gate. The combination relieves the guide vanes 

 of the function of cutting off the water when the wheel is to be 

 stopped and makes it unnecessary that the guide vanes close perfectly, 

 so that any looseness developed in them by wear is immaterial. 



LEUCHSENRING ROTARY WATER ENGINE, 1880 



U.S.N.M. no. 308709 ; original patent model ; transferred from the United States 

 Patent Office ; not illustrated. 



This model was submitted with the application for the patent issued 

 to Robert Leuchsenring, of New Bedford, Mass., March 9, 1880, no. 

 225226. 



This is a form of engine in which a drum-shaped rotor turns in a 

 casing, which is eccentric to the center of the drum, so that the drum 

 runs against one part of the casing and a crescent-shaped annular 

 space is formed between the casing and the drum. Water is admitted 

 tangential ly to the drum to one side of and away from the point at 

 which the drum and casing meet. The water impinges upon abut- 

 ments on the drum, turns the drum, and discharges from the engine 



