Cryostat Sectioning; Modification of the Antiroll Plate

A replaceable antiroll plate and holder have been designed for use in the Ames Lab-Tek cryostat which replace the plastic plate supplied with the instrument and insure a flawless, properly aligned plate for maximum efficiency in thin section cutting. A metal plate holder is attached to the existing screw-driven bracket provided with the instrument by the manufacturer. Glass plates made from one half of a 1.5 × 3 inch microscope slide are coated on the leading edge with spray-on Teflon and provided with tape spacers. These plates slip into the holder and can be adjusted for angular inclination and alignment with the cutting edge by movement within the holder or manipulation of the adjustment screw.