34 U. S. NATIONAL MUSEUM BULLETIN 2 04 



3-piece crank assembly supported in two ball bearings in the crank 

 hanger, which has an oil hole for lubrication. The pedal throw is 

 0% inches and is nonadjustable. The pedals are rubber covered and 

 are mounted on ball bearings. 



The curved, tubular metal handle bars carry composition grips, 

 and mount a warning bell on the left side. A Radsonne front lamp is 

 attached to the front fork, just below the handle bars, and turns with 

 it. The light switch is contained in the lamp. An Energie gener- 

 ator is clamped to the left side of the fork. 



The presently installed saddle cover, a Luxus, is mounted on a 

 metal-and-coil-si^ring base that is fully adjustable. Front and rear 

 mudguards, a Pallas luggage rack over the rear guard, a tire pump, 

 and a small leather tool bag are provided. The front brake, which 

 formerly rubbed against the tire, is now missing. No chain guard 

 is supplied. An American pennant is attached to the front mud- 

 guard. The weight of the machine is approximately 43 pounds. 



WHALEN AND JANSSEN LAMINATED-WOOD-FRAME 



BICYCLE, 1942 



U. S. N. M. No. 313040 ; original ; gift of Webster E. Janssen in 194G ; photograph 

 No. 38609-B; plate 24, a. 



At the beginning of World War II, John T. Whalen, and Webster 

 E. Janssen of the Janssen Piano Co., Inc., developed this laminated- 

 wood-frame bicycle to conserve critical materials yet provide essential 

 transportation. Wood subsequently proved to be more critical than 

 metal, so the bicycle was not marketed. 



The fork, saddle, handle bars, and elliptical frame are of laminated 

 wood. The wheels are of metal, with 36 tangential steel spokes, and 

 are 24 inches in diameter, mounting 26-by-1.375-inch Goodyear tires 

 and tubes. 



A New Departure ^Nlodel D coaster brake is incorporated in the 

 rear-wheel hub, and the drive, by roller chain with metal sprockets 

 and wooden pedals, is on the right side of the frame. Ball bearings 

 are used throughout the machine. 



The saddle is unsprung but is adjustable. There are no mudguards 

 or chain guard, and no grips on the handle bars. The machine's 

 weight is approximately 31 pounds. 



RALEIGH BICYCLE, Ca. 1949 



U. S. N. M. No. 313481 ; original ; gift of Alvaro Zabala in 1950 ; photograph No. 

 41168 ; plate 24, h. 



On January 3, 1950, Alvaro Zabala left Bogota, Colombia, on this 

 bicycle, and headed for New- York City. After pedaling through 



