The AMF Pinspotter transformed the bowling industry. While the exterior of a lane equipped with the Pinspotter displayed the AMF logo or Magic Triangle Pindicator, the interior held a complicated maze of gears. After every roll, the mechanisms with the Pinspotter went to work removing felled pins and replacing the remaining ones. Given the wide adoption of this system, it is difficult to imagine a time when this function was performed by pin boys.
Published by AMF