An air speed and attitude probe characterized by a pivot shaft normally projected from a data boom and supported thereby for rotation about an axis of rotation coincident with the longitudinal axis of the shaft, a tubular body supported for angular displacement about the axis of rotation, a fin mounted on the body for maintaining one end of the body in facing relation with relative wind, a pair of transducers mounted in the body for providing intelligence indicative of total pressure and static ...

A loading trimmer for dispersing granular material from a loading chute in an adjustable trajector into the hold of a ship or the like. A trimmer carriage with spaced drums carrying an endless belt is positioned below the chute outlet and pivotal about the center of a pair of idler wheels which centrally engage the belt on either side thereof to form an arcuate material receiving and dispersing path. One of the drums is driven by a motor mounted on a remote pivotal platform connected to the trim...

An automatic attitude control system is disclosed for a harvester having a crop pickup connected for pivoting about a transverse axis near the forward end of a crop-gathering head. The system automatically raises or lowers the crop-gathering head to maintain the angle between the upper run of the pickup belt or conveyor and the head within preselected angular limits to assure proper feeding of the crop from the pickup to a transverse auger or the like on the head. Two sensors are provided, each ...

A controller for the attitude stabilization of a satellite. The controller odifies the action of a first control circuit by responding to the signals of attitude .phi. and angular velocity of attitude .phi. developed by the first control circuit. A second control circuit includes a comparator, two Schmitt trigger circuits, two AND elements and two OR elements. Signals from the AND elements and uncorrected thrust nozzle control signals from the first control circuit are supplied to the OR element...

A device for enabling a diver to determine his relationship to the true horizon in deep and murky waters or when physiological sensations are of little value is described. An attitude sensor, incorporating a series of mercury switches, usually at the back of the diver's helmet or head, is coupled to a series of light emitting diodes equally spaced around the periphery of the face plate of the diving mask or helmet so as to simulate the natural observation that the half space above the horizon is...

An indicator for measuring the liquid content of a container comprises an attitude compensating sensor including at least two variable resistor assemblies disposed within the container. The resistor assemblies are located at opposite ends of the container and are electrically connected to each other in series. Each resistor assembly comprises a resistor disposed within a housing and in communication with a movable wall of said housing located near its lower end. The housing resides in proximity ...

An automatic attitude adjuster for a kite made from a strip of flexible material having a memory. A preferred material is plastic such as polypropylene. The strip when connected between the kite and the kite bridle changes the position of the tow point and the attitude of the kite automatically in response to variations in wind strength.

A system of pitch attitude symbols, which can be generated by a head-up display unit of an air vehicle, is provided. The system of pitch attitude symbols can be displayed by the head-up display as a virtual image in the direction of flight, behind the cockpit screen in a focal plane in front of the background. An unequivocal system of pitch attitude symbols is provided for the pilot, for a display area of an HUD, which display area is arranged below the natural horizon during neutral flight atti...

A spacecraft is provided that includes a communications payload having an antenna support structure and an antenna boom coupled to the antenna support structure. An attitude sensor may be mounted to the antenna boom. The attitude sensor (such as an Earth sensor, a star tracker and/or a sun sensor) may be mounted at a root of the antenna boom.

Parts in a desired attitude are selected, by memorizing the standard shape signal of a certain part and comparing the shape signals of supplied parts on the parts feeder with the memorized shape signal. A plurality of light emitting elements provided on the track of the parts feeder detect the shape signal of the parts serially.