Abstract: A sectionalized screen/basket assembly for a centrifugal dryer for coal slurry comprises a screen formed in an upper section and a lower section, enabling one to save substantially on screen replacement costs, in as much as the great preponderance of screen wear in such dryers is at the top of the screen, at the point of slurry introduction. An internal circumferential ridge on the upper screen creates a particle cake that further reduces wear.

Abstract: A coupling device includes a first support member which is connected to the arm of a robot and which supports a second support member for precision universal tilting and axial and/or rotary movement from an aligned normal position. The second support member supports robotic tooling, and a set of springs or springs and ball members or fluid actuated piston bias the support members to the normal position. An electrical control circuit is effective to stop movement of the robot arm in response to minute tilting or axial or rotary movement of the second support member in the event the tooling or article carried by the tooling is accidentally hit or overloaded. A set of semi-circular rings and auxiliary springs are attached to the support members for producing a substantial biasing force towards the normal position, and a set of construction balls and corresponding seats are used to establish a precision normal position.

Abstract: A sectionalized screen/basket assembly for a centrifugal dryer for coal slurry comprises a screen formed in an upper section and a lower section, enabling one to save substantially on screen replacement costs, inasmuch as the great preponderance of screen wear in such dryers is at the top of the screen, at the point of slurry introduction. An internal circumferential ridge on the upper screen creates a particle cake that further reduces wear.

Abstract: A coupling device includes a first support member which is connected to the arm of a robot and which supports a second support member for universal tilting and axial movement from an aligned normal position. The second support member supports robotic tooling, and a set of springs and ball members bias the support members to the normal position. An electrical control circuit is effective to stop movement of the robot arm in response to minute tilting or axial movement of the second support member in the event the tooling or article carried by the tooling is accidentally hit or overloaded.

Abstract: The six sides or angles surfaces of a part are automatically machined on a CNC or NC machining center by securing the part to a fixture plate which is mounted on a platen supported by a U-shaped frame for tilting movement between horizontal and vertical positions. The frame is secured to a pallet of the machining center, and the platen is tilted in response to rotation of twin ball screws driven by a wrench transferred to the spindle of the machining center by an automatic tool changer. In each position, the platen is precisely located and clamped to the frame by a plurality of units each including a shot pin which has a threaded end portion for engaging a corresponding nut within the platen in response to rotation by a dual-torque wrench also transferred to the spindle by the tool changer.

Abstract: A coupling device includes a first support member which is connected to the arm of a robot and which supports a second support member for universal tilting and axial movement from an aligned normal position. The second support member supports robotic tooling, and a set of springs and ball members bias the support members to the normal position. An electrical control circuit is effective to stop movement of the robot arm in response to minute tilting or axial movement of the second support member in the event the tooling or article carried by the tooling is accidentally hit or overloaded.