December 15 â Bob Feller tells story about first start after WWII â Vintage Rewind Podcast
  Matt and Tom Discuss â Bob Feller, Pitching Machines, December 15th, Free Agency, Bill Hamilton and Tommie Agee December 15th Show Notes December 15, 1896 â THE PITCHING CANNON AT WORK In 1896, Princeton University mathematics instructor Charles Hinton designed a gunpowder-powered baseball pitching machine for the Princeton University baseball teamâs batting practiceâŠ.