Apparatus for encapsulating an article in molded polyurethane

Apparatus for encapsulating an article within an energy-absorbing solid material comprising:

• an adjustable mold form,
• said mold form including a base plate defining a bottom of said mold form and at least four upstanding wall members which together with said base plate define an enclosed mold cavity,
• each said wall being movable with respect to the other walls and said base plate thereby to provide a finite variation in the size of the mold cavity,
• each said wall being normally disposed perpendicular to an adjacent wall with one vertical edge being in sliding contact with the inside face of the next adjacent wall and the opposed vertical edge being free standing and not in contact with another upstanding wall,
• a pivot arm for each said side wall having one end pivotally fixed to said base plate outside the confines of said mold cavity and its other end operatively slidably connected to the exterior of a side wall along said base plate to move an associated sidewall toward and away from an opposed wall member when said pivot arm is pivoted about its one end.