Abstract: An artificial ice skating treadmill for forward and backward ice skating, specifically designed to allow an ice skater to practice normal ice skating behavior while in a relatively fixed position. The general elements of the present design allow for the ice skater's form to be observed and coached from very close range, thus promoting rapid improvement in technique. The present ice skating treadmill allows for uphill or downhill skating, thus causing rapid loading of specific muscle groups and in turn the strengthening of those groups. A variable speed element in the present ice skating treadmill also allows muscle group conditioning at all skating speeds.The essential features of the present apparatus are the support base with a screw type tilt mechanism.

Abstract: A washing apparatus specifically designed for isolating plant roots from core soil samples is also suited for cleaning a variety of other organic and inorganic objects, particularly when surrounded by large volumes of soil. The essential features of the apparatus include a washing tank for holding a cleansing solvent, a support cradle for carrying cannisters of the samples to be cleaned, and a drive assembly for mobilizing the support cradle through the solvent in the washing tank.