Popular science monthly . At the end of a lane formed by rope fences is a wall on which the figures of catchers arepainted, as well as enthusiastic occupants of grandstand seats. Two home plates areprovided—one for a dummy left-handed batter and the other for a dummy right-handedbatter. Immediately behind each home plate is a pad, corresponding with the strikearea. When the pitcher makes a strike, the pad moves back, completes an electriccircuit, and rings a bell. A spring returns the pad to position, whereupon the bell ceasesits ringing and the apparatus is ready for the next pitched ball. A
Popular science monthly . At the end of a lane formed by rope fences is a wall on which the figures of catchers arepainted, as well as enthusiastic occupants of grandstand seats. Two home plates areprovided—one for a dummy left-handed batter and the other for a dummy right-handedbatter. Immediately behind each home plate is a pad, corresponding with the strikearea. When the pitcher makes a strike, the pad moves back, completes an electriccircuit, and rings a bell. A spring returns the pad to position, whereupon the bell ceasesits ringing and the apparatus is ready for the next pitched ball. A sheet of canvas, stretched on a frame, has an opening the exact shape of the strikearea to be considered by the pitcher. Back of the opening is a pocket communicatingwith a trough behind the sheet, leading to the strike runway shown. A secondtrough extends across the front of the sheet and communicates with the ball runwayshown. Pitch a ball so that it passes into the opening in the canvas and you make astrike, the ball being returned in its special runway after recording the strike on aregister in the runway. Pitch a ball, which means that you fail to land in the opening,and the ball will also be returned by way of the ball runway, your inaccuracy beingsubsequently registered by another recorder (50 Popular Scieficc Monfhh/
Size: 2147px × 1164px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
