Palm-positioning and system-actuating mechanism

A palm-positioning and system-actuating mechanism for properly positioning a person's palm and for actuating a system for coding the palm or comparing the coded palm for purposes of identification, said mechanism comprising:

• a plate having a palm-positioning area, said plate having an opening and an arcuate slot adjacent said opening in said palm-positioning area;
• a thumb and forefinger-engaging member, pivot means pivotally mounting said thumb and forefinger-engaging member onto said plate adjacent said opening;
• first switch-actuating means mounted onto said pivot means and having radiussed surface means thereon;
• second switch-actuating means mounted onto said plate by pivot pin means and having a ring and little finger-engaging member thereon extending through said arcuate slot and radiussed surface means thereon;
• switch means mounted on said plate means adjacent said radiussed surface means;
• spring means mounted on said plate means between said switch means and said radiussed surface means;
• said radiussed surface means engaging said spring means so that said spring means normally prevent said switch-actuating means from actuating said switch means, said pivot means and pivot pin means having play therein to enable said switch-actuating means to actuate said switch means via said radiussed surface means moving said spring means against said switch means when a person's thumb and forefinger engage said thumb and forefinger-engaging member and the ring and little finger engage said ring and little finger-engaging member and move said switch-actuating means thereby properly positioning the person's palm over said opening.