67 68 are formed in extractor 56 so that surfaces 57 58 of extractor 56 and a part of the cam surfaces 53 54 of cam 52 overlap when extractor 56 is in its second or retracted position linear actuator 69 is mounted on positioning means 14a and is operatively connected by conventional connecting means 70 to moveable element 41 of ball slide 40 to cause extractor 56 to move between its two positions illustrated in fig3 actuator 69 can be of any conventional type powered by any suitable type of power which is readily available such as compressed air hydraulic fluid or electricity in a preferred embodiment a pneumatic double acting cylinder is used in operation a plurality of fixtures 34 are stacked vertically in magazine 15 with the bottommost one having part of its bottom surface 38 engaging the top surfaces of the rails 23 28 the widths of the front openings 33 in magazine 15 and opening 49 in magazine 35 are slightly greater than the width of a fixture 34 the heights of the openings 33 49 are such that only one fixture 34 can be removed through front opening 33 at any one time and only one fixture 34 can be.