Roller skate

A roller skate for use in playing hockey with a puck, comprising:

• a. a shoe,
• b. a front wheel assembly having an axis and being attached to the front of the shoe,
• c. a rear wheel assembly having an axis and being attached to the rear of the shoes to define a space between the rear wheel assembly and the front wheel assembly,
• d. a solid blocking element lying in the said space and having a lower edge located a substantial distance below the axes of both wheel assemblies, the distance from the said lower edge to the ground being less than the thickness of the puck, a rigid support structure being fastened to the shoe, the first wheel assembly, the second wheel assembly, and the blocking element being separately attached to the support structure, the support structure being in the form of an I-beam whose upper flanges are attached to the shoe and whose lower flanges are attached to the wheel assemblies and the blocking element, the blocking element being a generally rectangular plate arranged vertically with one side edge constituting the said lower edge, with the upper edge lying adjacent the lower flanges of the support structure, and with the end edges lying adjacent the wheel assemblies, and
• e. a clamp mounted on the upper edge of the blocking element to grasp the lower flanges of the support structure, the clamp consisting of two opposed concave elements each of which engages the edge of a flange, the elements lying on opposite sides of the plate and are drawn together to clamp the flanges by a plurality of bolts passing through the elements and the plate.