motor 54 is activated by a switch means such as indicated at 60 lobe 42 is rotated in an eccentric manner as illustrated in fig4 and 5 operably connected to cam lobe 42 is a cam follower means designated at 62 which comprises a ram rod 64 having a first tubular rod member 66 and a second rod member 68 adapted to be slidably positioned within tubular rod member 66 the second rod member 68 is under continuous load by means of override spring 70 located in tubular rod 66 one end of which is engaged by rod 68 the upper connecting end of rod 66 comprises a yoked member 72 having side arms 74 to which are mounted opposing rollers 75 and a single transverse cam follower bearing member 76 the rollers are arranged to engage each respective ring flange member 48 on the inner side thereof bearing 76 being arranged to engage the outer annular ring surface thus as the lobe is rotated ring 46 engages bearing 76 forcing cam rod 64 downwardly as seen in fig5 as the lobe further rotates to a position as seen in fig4 rollers 75 engage with flanges 48 thus causing the cam rod to be pulled upwardly fixedly connected to the end of rod member 68 is a pressure plate 80 having the same general shape or configuration as the compartment 20 of receptacle 18 in this embodiment receptacle 18 and its compartment 22 are rectangular in shape and are adapted to.