Abstract: A racquet stringing machine having automatically activated locking means and an improved tension means using a free hanging weight to apply a uniform tension to a racquet string through a wheel and drum which are connected to the weight and the racquet string, respectively.
Abstract: An improved process for treating wool scouring wastes liquors in which the waste liquors are first cooled before acid and collodial bentonite are added; then the flocculated liquor is reheated to a temperature in the range of 130.degree. to 150.degree. to separate the waste liquor into a supernatent liquor and a settled drainable sludge and finally dewatering the settled sludge by centrifugal separation.
Abstract: Apparatus for use in a sanding and shaping or other machine comprised of a plurality of individually mounted feeding and hold down members adapted to engage and hold a work piece against a table and against a guiding fence as the work piece is fed through the machine to keep the work piece from turning or binding in the machine.
Abstract: A cylindrical rotary cutting head rotatable about a longitudinal axis having a plurality of helical slots in which a plurality of bits carrying cutting edges are retained in the lateral direction by means of set screws which bear against a "V" groove in an inclined face of the bit and in the vertical direction by plurality of cooperating serrations on an opposite face of the bit and in one slot wall.