u201c first rearward position u201d the eccentric journal assembly 54 is in a u201c first rearward position u201d similarly as used herein when the eccentric journal assembly 54 is in the u201c second forward position u201d the eccentric journal assembly 54 is in a u201c second forward position u201d finally as shown in fig7 and 9 during the revolution of journal assembly shaft 60 the eccentric journal 62 maximum radius is also disposed either below the journal assembly shaft 60 fig7 or above the journal assembly shaft 60 fig9 in the embodiment shown in fig3 the connecting rod assembly 56 includes an elongated connecting rod 70 having a first end 72 and a second end 74 the connecting rod first end 72 includes a bearing assembly 76 the connecting rod first end bearing assembly 76 defines an opening 78 sized to correspond with the eccentric journal 62 thus the eccentric journal 62 may be disposed within the connecting rod first end bearing assembly opening 78 as the eccentric journal 62 rotates bias is applied to the connecting rod first end bearing assembly 76 thus the connecting rod first end bearing assembly 76 is structured to engage the eccentric journal 62 the connecting rod second end 74 and therefore the connecting rod 70 is structured to be.