Abstract: A adjustable clamping device for applying pressure to a puncture site of an artery. The clamping device has a radial arm movably supported on a column which extends from a base. A carrier movably mounted on the end of the arm supports a pressure pad. The radial arm extends in a parallel attitude over the base and may be adjusted vertically upwardly and downwardly in reference to the base and may also be pivoted in reference to the column. Lateral movement of the arm facilitates positioning the pressure pad over the puncture site. A releasable feed mechanism on the arm controls movement of the carrier and thus the pressure pad. With the feed mechanism engaged, rotation of the carrier provides a controlled feeding of the carrier relative to the arm. With the feed mechanism disengaged, the carrier may be rapidly advanced or retracted. Independent locking mechanisms are provided for clamping of the lateral movement of the arm separate from the vertical and pivotal movements.

Abstract: The cutting apparatus and method of the present invention involve feeding a newsprint wrapper or any other sheet of paper downwardly along a planar path between two rotating cutters. Each of the cutters includes a planar blade member with an outer, sawtoothed cutting portion. In operation, the blade members are rotated about respective axes to move their cutting portions downwardly along arcuate paths that preferably pass through the path of the downwardly fed sheet. The arcuate paths of the cutting portions overlap and one of the cutting portions of the blade members is spaced farther from its rotational axis than the other. It is also moved tangentially faster about its axis than the cutting portion of the other blade member. In this manner, a cutting action is produced which first punctures and then subsequently tears or shreds a horizontal cut across the downwardly fed sheet to cut it into smaller pieces or segments.

Abstract: An aerodynamic and hydromechanical hydroplaning disc with a solid unitary body comprised of aggregated material. The disc is heavier than the water it displaces and non-floating. A series of longitudinally oriented (i.e., meridionally oriented, or north-south) discontinuities are provided only on the extreme latitudinal periphery of the rim adjacent to the top and bottom surfaces of the disc. Said discontinuities: exert a greater interfering effect on the airflow and waterflow around the circumference than over the top and under the bottom surfaces; create a turbulent, separated and unseparated, peripheral boundary layer in air and water; reduce air resistance and water resistance; increase range, frequency of skips, and dynamic stability. Also, there is provided a granular texture on the bottom and circumferential surfaces of the disc which results in a more sure grip and improved hydroplaning stability (i.e., the ability of the disc to maintain a horizontal orientation while hydroplaning).