Abstract: Fluid flow control valve in which bidirectional displacement of a valve operator is effected by momentary utilization of high current flow in a permanent magnetic flux field and longer term utilization of minimal current flow with in said flux field to maintain valve operator position in limiting displaced condition.

Abstract: A load cell of integral unitary construction wherein strain gages are mounted on the peripheral surface of a solid disc-shaped measuring body and are responsive to shear strain induced in the solid measuring body by an applied load. The load receiving and load cell supporting ends are incorporated into the integral unitary structure.

Abstract: Weighing apparatus utilizing a load cell wherein overload protection is provided that is external to the load cell. The weighing platform is attached to the load receiving surface of the load cell by a number of outwardly extending arms. Two sets of stops are provided adjacent the load cell and one set is provided at the periphery of the weighing platform.

Abstract: A strain gage load cell scale is provided with overload protection that is external to the load cell and which compensates for off-center loading of the weighing platform. The weighing platform is attached to the load receiving surface of the load cell by a number of outwardly extending arms. Two sets of stops are provided under the weighing platform with different spacing therefrom to provide the external overload protection.

Abstract: A folded structure having utility as the base structure for fanciful novelty structures. The structure is comprised of a base sheet and four outer sheets. The base sheet has eight alternate convex and concave folds. The four convex folds pass through the center of the base sheet and the midpoint of the four sides of the base sheet. Four concave folds pass through the center of the base sheet and through each of the four corners. Four smaller outer sheets are connected to the outer edge of the base sheet. The outer sheets are bisected by convex folds extending outwards from the four respective corners of the base sheet. The resulting structure is a hingeable, flexible, easily-opened structure that can be folded flat making it a useful base for novelty structures.