| 摘要 |
Mounting a right and left angled orientating rod on a pin wheel guard on each side of an opening from a pin wheel, securing a first end of the orientating rods with an adjustable screw to permit adjustment in alignment of each orientating rod so that a second end of the rod partially covers a top end of a bowling pin descending from a pin wheel to a distributor belt to orient the bowling pin and cause it to descend base first down a moving distributor to a pin spotting apparatus.
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