34 BULLETIN 198, UNITED STATES NATIONAL MUSEUM 



Each cylinder is fitted with a carburetor, one of the earliest instances 

 of multiple carburetion on a standard-production machine. An ex- 

 haust pipe leads from each cylinder to a common muffler, the latter 

 equipped with a cut-out operated by a small lever in front of the 

 driver's seat. On the left side of the engine is an enclosed train of 

 gears which drives the two exhaust camshafts, the water pump, and the 

 ignition timer. The timing-gear cover is of aluminum. 



The water system includes the water jackets on the two cylinders, 

 the centrifugal pump of aluminum, a radiator, and a water-storage 

 tank, together with the necessary piping. The radiator is composed 

 of horizontal tubing fitted with radiating disks. It is placed in the 

 front of the car and behind an opening in the wooden hood fitted to 

 the body at the front. Behind the radiator is a cylindrical tank made 

 of two separate sections, the left one for water. A filler cap is pro- 

 vided at the top of the tank, while an overflow pipe is located within 

 the tank. A pipe from the water jackets at the top of the engine 

 cylinders leads to the bottom of the radiator. The top of the radiator 

 is connected to the side of the water tank, while a pipe connects the 

 bottom of the tank to the pump beneath the engine. The pump case 

 is cast integrally with the water manifold at the bottom of the two 

 cylinders. 



The right section of the tank previously mentioned is the gasoline 

 tank. A pipe from the bottom of this tank carried the fuel to both 

 carburetors. A shut-off valve handwheel is located on the top of 

 the tank, next to the filler cap. Access to the water and gasoline tanks 

 is by means of a hinged aluminum cover in the top of the wooden 

 hood. The carburetors, which are of rather massive construction, 

 have float bowls equipped with cork floats. Parts of the carburetors 

 are of aluminum, and each carburetor incorporates the intake valve for 

 its cylinder. These valves are of the automatic, suction type and are 

 controlled in the amount of their opening by an air-pressure system 

 similar to that on the Winton "Bullets." An air pump, located by the 

 rear engine cylinder, is operated by a rod connected to the skirt of the 

 piston of the front cylinder. When the engine was running, air was 

 compressed, and this compressed air was supplied to the two intake 

 valves to control the amount of their being drawn open. A foot-op- 

 erated plunger and a hand valve are connected to the piping, and by 

 opening either one the pressure was caused to drop according to the 

 amount of opening. The lower the pressure, the more the intake 

 valves would open, and the faster the engine would run. The carbu- 

 retors contain no throttle valves. 



Each cylinder of the engine has a compression release in the form 

 of a petcock. Each petcock is operated by means of a long rod reach- 

 ing to the right side of the body beneath the seat and floorboard, where 



