Word: ledwinka
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Recipient of last week's milestone was Joseph V. Ledwinka, 64, Vienna-born chief engineer of Edward G. Budd Manufacturing Co. (Philadelphia), makers of automobile and railroad equipment (see p. 49). The company sent him to Washington to be photographed receiving his papers from the hand of Conway Peyton Coe, young Commissioner of Patents. Engineer Ledwinka was not excited by the event. This was the 248th U. S. patent he has received since, in 1899, he invented "a means of propulsion of vehicles by electricity...
Patent No. 2,000,000 is for an "improvement for pneumatic tires for railroad cars."* Inventor Ledwinka thinks very little of it. Said he: ''Rubber at high speeds builds up a tremendous heat, enough to blow out the tube, or in solid tires to melt them internally. We were forced recently to replace pneumatic tires with metal wheels on a train we shipped to Texas." Budd Co. will develop his railroad tire, said he, "to meet competition...
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