Abstract: A detachable, articulated rotating eddy current inspection tool includes a body member having a connector at one end for mechanically and electrically attaching the body member to a rotating drive member while at the other an eddy current probe is supported for radial movement with respect to the axis of rotation of the body member. A motor located within the body moves a slide on which the probe is mounted while at the same time a counterbalancing slide is moved radially in the opposite direction to maintain said tool in dynamic balance. An encoder housed within said body member senses the location of said eddy current probe with respect to the axis of rotation of said body member. A rotary transformer is used to transfer signals which control the position of the probe and to receive information from the eddy current probe and the encoder. The encoder output signals are modulated by the eddy current probe exciter signal to enable probe positions information to be sent through a rotary transformer.

Abstract: An apparatus for maintaining the end of a probe carrying a sensor, such as an eddy current probe, a predetermined distance from a workpiece includes a housing in which a piston is permitted to move. Air under pressure, introduced into a first chamber formed within the housing, acts on a first surface of the piston to urge it toward the workpiece. An air bearing is used to permit the almost friction free axial movement of the piston within the housing. Some of the air passes from the first chamber through a restricted opening in the piston into a second chamber and is vented toward the workpiece. The pressure in the second chamber will vary as a function of the distance of the end of the probe to the workpiece surface. The piston is provided with a second, larger, surface area exposed to the variable pressure in the second chamber, and as a result, the piston is urged away from the workpiece.

Abstract: A polymer is dried by introducing a mixture of polymer and liquid into an agitated bed of hot polymer particles.

Abstract: An anchor which secures a floating boat dock in position and which can be installed and removed easily from the dock for seasonal use. A base is permanently installed on the bottom of a lake and has a spherical ball projecting upwards from the base. A post has a socket formed in the bottom end which is provided with a pivotally mounted flap for capturing and releasing the spherical ball therein to removably mount the post on the base. A lever is attached to the upper end of the post and is connected to the flap for moving it between open and closed position. The post is loosely connected to the dock permitting limited movement of the dock with respect to the post. The post is movable on the spherical ball of the base permitting limited movement of the dock and post due to wave action reducing damage and fatigue on the anchor and dock.

Abstract: A laminate in which a fabric backing is adhered to a composition containing a radial teleblock copolymer having blocks of poly(conjugated diene) and poly(monovinylaromatic) and sufficient surface dulling agent to provide a suede-like surface. A laminate as described having high air permeability and suede-like surface is used as material for uppers of shoes.