Abstract:
A system for recording and replaying information in which noise caused by vibration of the system is eliminated. Two channels are used, one to record the input information, and the second to record a constant input signal. The first channel signal is then divided by the second channel signal to give an output signal free of vibration induced noise.
Abstract:
Diameter control in Czochralski crystal growth is accomplished by progressively measuring both the temperature of the melt by heat sensor (11) and the weight of the residue of the melt in the crucible (2) by weighing means (9). The weight measurement data is fed to microprocessor (11) having a control algorithm. The microprocessor output and temperature measurement output are fed to a three-term temperature controller (13) which regulates the temperature of the melt to thereby control automatically the diameter of the crystal.
Abstract:
A photogrammetric stereoplotter using a stereoscopic binocular unit (1) to provide an image of spatially separated masters (4, 5) and including a cursor (6) providing X Y coordinates and measuring marks providing Z coordinates in which the X Y Z coordinates are fed through a stereogrammetric unit (7) to a computer (8) with a display and/or printer (12, 13) and an interface (14) to a display tube (16) and through an optic train (18) to at least one side of the binocular unit (1), and including a topographic keyboard unit (10) arranged to feed information to record the trace, and optionally a voice recognition unit (20) with two-way communication between operator and computer (8), and means in the computer (8) whereby model coordinates from the said binocular unit (1) are changed to image coordinates by the computer (8) to achieve precise superimposition of the trace image to eliminate visual disturbance.
Abstract:
A solid propellant charge for a rocket motor or gas generator, the charge having a selected bulk propellant (2) with longitudinal cores of control material (3). The control cores have a burning rate, greater than that of the bulk propellant, which decreases as pressure increases, so that the solid propellant charge has a burning rate which also decreases as pressure increases.
Abstract:
A two body capacitance bridge for accurate capacity measurement which is affected by the presence of the measurement instrument in which a probe (1) is located at the measurement site and includes measuring means, and a measurement instrument (2) is remotely positioned from the probe and interconnected by a transmission channel (3), having a capacitance-to-measurement signal converter (4) connected to a measurement signal transmitter (5) and arranged to transmit a measurement signal and a measurement signal receiver (6) forming part of the measurement instrument (2) and connected to a measurement-signal-to-voltage converter (7) using a standard-component-to-voltage converter (10) arranged to generate a calibrated voltage from a standard component (9) and a detector (8) to measure the voltage differential between the voltage of the measurement-signal-to-voltage converter (7) and the voltage of the standard-component-to-voltage converter (10).
Abstract:
Compounds of general formula (I), wherein one of the R1, R2 and R3 groups represents a feruloyl or isoferuloyl group of formula (II) or (III), respectively, and the other R1, R2 and R3 groups represent hydrogen. These compounds have opiate receptor activity and may be used in treatment of the toxic effects of opiate narcotic analgesics. Preparation of these compounds by extraction from coffee, and by synthetic processes is disclosed.
Abstract:
A signal processing device to receive signals from an optical detector (1) and comprising a first profile integrator (4) and a second profile integrator (7) each having different time constants, and a comparator arranged to receive the signals from the integrators (4-7) to detect and indicate change in the two signals at a selected time.
Abstract:
A waveguide delay comprising an elongated channel formed to give an extended path for a travelling wave characterised by an elongated channel in a first rigid member (1-8-11-15-21 or 25) and closed by a second rigid member (4-5-9-12-17-22 or 27) engaging that face of the first member in which the channel (2-6-7-10-13-16-23 or 25) is formed to form a closing member for the channel.
Abstract:
A sub-calibre training device for launchers and similar weapons comprising a gun (6) to be positioned in the barrel of the launcher (1) having coupling means between the trigger (4) of the launcher (1) and the trigger arm (11) of the gun (6) and including a safety lock (12) external of the launcher barrel, and an aligning and locking member (5, 7) on the gun to releasably engage the rear of the launcher (1).
Abstract:
An aircraft navigation trainer to simulate the data supplied to the cockpit aircrew of an aircraft arranged as a ground based unit and including a Computer Display Unit (CDU) (3) as used in the aircraft, in combination with means to feed flight data to the said Computer Display Unit (3) using a flight data processor (5) with an operator interface (4) and a CDU interface (6) to feed the data to the Computer Display Unit (3), the unit being supported on suitable frame means such as a suitcase (11).