Blood sedimentation rack

Claim 1

A RACK FOR HOLDING SEDIMENTATION TUBES BESIDE GRADUATED SCALES COMPRISING A BODY BLOCK MEMBER HAVING BOTTOM FEET AND A CENTRAL PORTION SUPPORTED BY AND BRIDGING SAID FEET, A FRONT FACE AND A PLURALITY OF SAPCED SEDIMENTATION TUBE OPENINGS ADJACENT SAID FRONT FACE, A PLURALITY OF SPACED GRADUATED SCALES ON SAID FRONT FACE ADJACENT SAID OPENINGS, AND A PLURALITY OF SPRING CLIPS SECURED TO THE BODY BLOCK MEMBER AND DISPOSED IN SAID OPENINGS REMOVABLY TO HOLD SEDIMENTATION TUBES THEREIN, SAID CENTRAL PORTION HAVING A PLURALITY OF SPACED SPRING CLIP SEATING RECESSES DISPOSED ONE BEHIND EACH OF SAID SEDIMENTATION TUBE OPENINGS AND SAID SPRING CLIPS EACH HAVING A HAIRPIN BENT AND FORMED WITH A SHARP POINT END PORTION ADAPTED FRICTIONALLY TO BE SECURED IN ONE OF SAID SPRING CLIP SEATING RECESSES, SAID BODY BLOCK MEMBER BEING A SINGLE PIECE OF PLASTIC MATERIAL AND ALSO HAVING A TOP FACE, A BOTTOM FACE, A BACK FACE AND TWO END FACES, SAID SEDIMENTATION TUBE OPENINGS BEING VERTICALLY DISPOSED AND EXTENDING FROM SAID TOP FACE TO SAID BOTTOM FACE AND THROUGH SUCH FACES, SAID FRONT FACE HAVING A PLURALITY OF SLIT OPENINGS OF SMALLER WIDTH THAN THE DIAMETERS OF SAID SEDIMENTATION TUBE OPENINGS CONNECTING THE FRONT FACE WITH THE SEDIMENTATION TUBE OPEININGS, SAID SPACED GRADUATED SCALES EACH BEING DISPOSED AT ONE SIDE OF ONE OF SAID SLIT OPENINGS AND PARTIALLY EXTENDING ACROSS THE SEDIMENTATION TUBE OPENING CONNECTED WITH SUCH SLIT OPENING, SAID BODY BLOCK MEMBER BEING TRANSPARENT AND SAID GRADUATED SCALES DISPOSED ON SAID FRONT FACE BEING CONSECUTIVELY NUMBERED, AND DISPOSED FOR SEDIMENTATION TUBES TO BE INSERTED IN THE SEDIMENTATION TUBE OPENINGS TO A UNIFORM EXTEND, AND A CHAMBER IN EACH SPRING SEATING RECESS SLIDABLY TO SEAT THE OTHER END PORTION OF EACH SPRING CLIP.