Abstract: A machine for testing polarization rotation by translucent specimens includes a standard spectrophotometer disposed for establishing and converging a pair of light beams from a single monochromatic source and provided with a recorder. A polarizer, a station for mounting a translucent specimen and an analyzer are serially provided for passage therethrough of one of the beams and a magnetic device is provided for reversible mounting astride the station. The polarizer and analyzer are respectively disposed for orientation to a reference plane of the one beam and for modification of the intensity thereof in a plane displaced at a predetermined angle to the reference plane. The magnetic device displaces the specimen polarization plane at equal and opposite angles to the reference plane and the recorder provides outputs in logarithmic proportion to the intensity ratios of the beams.

Abstract: A carrier with a connector secured between terminals for enclosing spaced rtions of an object for support thereof, a link disposed for removable engagement with intermediate points of the connector to form a loop therein and limit the support portions of the connector, means for securing the loop to the link and to the support portions.

Abstract: A transportation machine such as a ballistic missile disposed for operation n a linear path is provided with a chassis including an aerate atmosphere and a gyroscopic rotor for development therearound of a pressurized aerate ring and for axial orientation in the linear path. A stabilizer develops signals responsive to differences in pressures between the aerate atmosphere and the pressurized ring for rotation of the chassis to axial coincidence with the rotor responsive to the signals.

Abstract: A fluid flow regulator including upstream and downstream members to secure pierced diaphragm in fluid tight engagement therebetween, a valve stem and seat repectively disposed on the diaphragm and upstream member, an O-ring enclosed therein and, a shoulder on the valve stem for engagement with the O-ring to form a fluid tight seal. The diaphragm is disposed for flexure to compress the O-ring for engagement of the stem and seat to discontinue fluid flow responsive to a predetermined value of downstream fluid pressure.