36 BULLETIN 198, UNITED STATES NATIONAL MUSEUM 



steering wheel. The steering wheel is attached to the upper end of the 

 column in a manner enabling the wheel to be tilted, thus giving more 

 access for entering the driver's seat. The sector is attached to a short 

 pitman arm, which in turn is attached to the left front wheel spindle by 

 a transverse drag link. The front axle is a solid bar and is attached to 

 the frame by two semielliptic springs, one at each side. Full shackles 

 are used only at the rear ends of these two springs. A spindle is at- 

 tached to each end of the axle, with the spindles connected by a tie rod 

 behind the axle. 



The rear axle is of the tubular variety, with enclosed half axles and 

 exposed differential unit, the sprocket of which is driven by a chain 

 from the driving sprocket on the output shaft of the transmission. The 

 rear-axle assembly is externally strengthened by three truss rods. It is 

 attached to the frame by two semielliptic springs, one on each side. 

 Full shackles are used at each end of each spring, and two external, 

 adjustable, radius rods are therefore fitted to the axle assembly to 

 prevent forward and backward motion. A brake drum is attached in- 

 side each rear wheel. Contracting bands on the drums are controlled 

 by a pedal that can be locked in the depressed position through the use 

 of a multiple-toothed ratchet incorporated in the pedal design. The 

 pedal pivots on the front engine support and is returned to the off posi- 

 tion by a long, narrow coil spring. 



The four wheels are of the wooden-spoked type with nondemount- 

 able rims. Clincher tires, size 32 by 4, are fitted to the rims. The 

 wheel base of the car is 91 inches and the tread 56 inches. 



The sight-drip oiler consists of a horizontal, cylindrical, brass tank 

 secured to the dashboard in front of the driver, and capable of holding 

 about 1 quart of oil. Six oil lines, each incorporating a small sight 

 glass, lead from the bottom of the tank. At the top of the tank are six 

 adjustable valves that enable the flow of oil to be metered or shut off. 

 The first and third lines from the right lead into the transmission, 

 while the fifth and sixth lead to the main bearings of the engine. The 

 second and fourth are now disconnected, though the fourth probably 

 led to the air pump. 



The 2-seated body is of wood, with upholstery of black leather. The 

 two side step plates are of iron, while the four laminated fenders 

 and the removable hood are wooden. Side lamps, a single head lamp, 

 and a bulb horn were originally fitted but are no longer part of the 

 equipment. A spare tire is attached to the left side of the body, 

 though on the famous trip the spare was carried over the front of 

 the hood. None of the five tires are original, nor were they used on 

 any part of the trip. In the tonneau of the car, covered with a tar- 

 paulin, is much of the spare equipment and tools carried on the trip. 



