Abstract: An arm cap friction hinge mechanism may include a center link; a first top link, a top friction hinge link, a second top link, and a top pin link coupled to the center link; an upper hinge mount coupled to an arm cap, to the first top link, and to the top friction hinge link via a first friction hinge; an upper pin mount coupled to the arm cap of the aircraft seat, to the second top link, and to the top pin link. The center link may be coupled to at least one hinge mount via at least a second friction hinge. The arm cap may be configured to actuate between a closed position and a first open position around the first friction hinge, and between the first open position and a second open position about an axis through the at least a second friction hinge.

Abstract: An arm cap friction hinge mechanism may include a center link; a first top link, a top friction hinge link, a second top link, and a top pin link coupled to the center link; an upper hinge mount coupled to an arm cap, to the first top link, and to the top friction hinge link via a first friction hinge; an upper pin mount coupled to the arm cap of the aircraft seat, to the second top link, and to the top pin link. The center link may be coupled to at least one hinge mount via at least a second friction hinge. The arm cap may be configured to actuate between a closed position and a first open position around the first friction hinge, and between the first open position and a second open position about an axis through the at least a second friction hinge.

Abstract: The retractable die clamp for a pellet mill includes a clamp segment having a generally C-shaped cross-section with radial extending flanges for wedging the die ring flange and mounting or quill flange of the pellet mill frame against one another, securing the ring to the frame. The clamp includes end bolts threaded into the mounting flange. A centrally located Acme fastener has an externally threaded sleeve and a bolt extends through the sleeve and is threaded into the mounting flange. The Acme fastener also includes an internally threaded nut restrained on the clamp for limited axial movement. The nut is also rotatable relative to the clamp to back the clamp radially away from the mounting flange to retract the clamp from the ring and mounting flanges. The Acme fastener also maintains the clamp attached to the frame by the bolted connection when the clamp is backed off the mounting and die ring flanges.