Chinese汉语 term (edited): �Զ�����ƿ����ϵͳ

automatic pinsetting machine/ automatic pinsetting device


4. In a ball elevator wheel for an automatic pinsetting machine the improvement comprising at least one substantially rectangular strip of flexible elastomeric material adhered to the inner circumference of the wheel, the strip covering only a minor portion of the inner circumference of the ball elevator wheel, the strip being provided with a plurality of projections which are concave with respect to the direction of rotation of the wheel.