Abstract:
A measuring and recording apparatus for testing of motor cars in accordance with a predetermined test program including a program unit having a plurality of measuring data inputs connected to different measuring points of a motor car, particularly points of the motor and electrical system thereof. Said inputs are successively switched through to the measuring system of a recording instrument, the successive switching actions being timed in synchronism with the rotation of the motor when disabled and rotated by the starter. During one revolution of the motor, the relative compressions of the cylinders are recorded by recording the starter current, during another revolution, the primary current of the ignition system is recorded, and further single or double measurements may be carried out during any subsequent revolution. Then, the successive switching actions are timed in dependence on time so that during a fixed period, for example, the motor is blocked and the starter is energized, the starter current being recorded during this measuring period. In this way, a test operation results in a series of successive records of magnitudes, essential for the performance of the motor car, are obtained.
Abstract:
D R A W I N G ON A BATTLEFIELD PANORAMA, IMAGES OF ARTILLERY PROJECTILE EXPLOSIONS ARE PROJECTED AT THE LOCATIONS THEY WOULD ATTAIN IF FIRED FROM A GUN LAID ACCORDING TO FIRE CONTROLLER''S ORDERS, AND OF APPEARANCE THAT TAKES ACCOUNT OF ANY INTERVENING ELEVATIONS IN THE DEPICTED TERRAIN. LOCATION OF EACH EXPLOSION IS COMPUTED BY COMPARING TERRAIN ELEVATION SIGNALS FROM A THREE-DIMENSIONAL MEMORY UNIT, TAKEN ALONG THE TRACK OF THE ASSUMED PROJECTILE, WITH A SIGNAL CORRESPONDING TO CHANGING ALTITUDE OF THE PROJECTILE IN THE FINAL PORTION OF ITS TRAJECTOR, AND THE EXPLOSION IMAGE PROJECTOR IS SWUNG TO THE LOCATION AND ELEVATION THUS DETERMINED. SELECTION OF AN APPROPRIATE IMAGE IS MADE IN RESPONSE TO COMPARISON OF AN EXPLOSION ELEVATION SIGNAL WITH SIGNALS FOR ELEVATIONS OF THE DEPICTED TERRAIN BETWEEN THE BURST POINT AND THE FIRE CONTROLLER''S POST.
Abstract:
The immersion responsive sensor of an automatically inflatable life jacket comprises concentric inner and outer tubular electrodes, the outer one having water access apertures at zones spaced axially from the ends of the inner one. The outer one comprises part of a housing that encloses a battery. Seal means extend across the outer electrode in axially spaced relation to the inner one and have frustoconical inner surfaces that drain water toward the apertures.
Abstract:
Plural transducer elements, comprising a single transducer, are associated with an X-ray tube to produce an output which varies with average intensity of X-ray radiation. The transducer element outputs are summed, averaged and amplified, and are corrected for factors common to both radioscopy and photography, then fed, through a selector switch, either to a dose velocity controlling device which maintains radiation intensity at a desired level for radioscopy, or to an exposure controlling device which times photographic exposures.
Abstract:
The body of a ball plug valve comprises a unitary outer tubular part and annular seat members, one at each side of the valve element, coaxially secured therein as by welds around their axially outer ends. A resilient seal ring on the inner end of each seat member is compressed between it and the valve element. Until welding is completed, the axial positions of the seat members relative to the tubular part are established by the valve element stem, confined to rotation relative to said part, and by a fixture exerting axial converging force on the seat members. Before welding, and after the fixture-held assembly is inserted, end portions of the tubular part are reduced in diameter to define ports smaller than the valve element.
Abstract:
An elongated vibration transmitting body, extending vertically in a tank, is coupled at its top to an exciter that recurrently imparts brief periods of vibration to the body. A similar vibration receiving body, in spaced, parallel relation to the transmitting body, is coupled at its tip to a vibration detector. Rigid horizontal members connected to both bodies and vertically spaced at uniform intervals serve as sonic bridges between them. Calculating means, connected with the exciter and the detector, determines level of liquid in the same tank on the basis of number of crosstalks through sonic bridges and time between crosstalk through lowest exposed sonic bridge and beginning of crosstalk through liquid.
Abstract:
In a video tracker, each scan line is broken into a predetermined number of uniform short segments. An electronic tracking window thus comprises a matrix of data points, each a line segment, and its edges are on coordinates defined by data points. Video signal content of each line segment in the window area is digitized by comparison to automatically adjustable reference level signals and generation of either a ''''one'''' or a ''''zero'''' bit, depending upon relationship of video signal content to reference levels. For each frame scanned, data points in the window are compored, set by set, with a bit pattern preselected for best correspondence to target configuration, comparisons being made sequentially across and down the window. A correlation number is obtained for each comparison. Location and value of the highest correlation number for each scan is stored and used for tracking.
Abstract:
In a remote control system wherein control commands are sent as telegrams, each containing a fixed number of binary bits, transmission of each telegram is required to span a time interval divisible into equal periods, the number of such periods being equal to the number of bits in a telegram, and each bit pulse being required to persist for a predetermined portion of the duration of its period. Preferably the last pulse of each telegram has a longer duration than the others. The long last pulse is utilized for telegram framing as well as for authenticating received telegrams.
Abstract:
The invention relates to a device for straightening vehicle frames, comprising at least one wheeled, transportable unit including at least one horizontal base bar arranged to be anchored to a support surface such as a floor and provided with a longitudinally extending guide structure for at least one straightening means mounted for longitudinal movement thereon or therein. Said straightening means comprises a substantially flat base bracket structure which is mounted for movement on one edge thereof between two vertical wall elements in the base bar. The base bracket structure is provided on its edge surfaces with abutment surfaces and/or bearing points for cooperation with auxiliary devices connected to the base bracket structure during a straightening operation.