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51. 发明专利

GB1531289A OPTICAL SIGHTING DEVICES 未知
公开(公告)号：GB1531289A
公开(公告)日：1978-11-08
申请号：GB4037176
申请日：1976-09-29
申请人： FRANCE ARMED FORCES , FAB D INSTR DE MESURE SOC D
IPC分类号： G02B23/12 , G02B23/14 , G02B27/64 , G02B23/00
摘要： 1531289 Sighting devices FRANCE ARMED FORCES - MINISTER OF and SOC DE FABRICATION D'INSTRUMENTS DE MESURE (SFIM) 29 Sept 1976 [1 Oct 1975] 40371/76 Heading G2J In a sighting device of the kind in which a reflector is mounted for rotation about the axis of a rotatable hood so as to direct radiation transmitted through an aperture in the hood along said rotation axis, the hood is provided with two windows each transparent in a different spectral range, and the relative position of hood and reflector can be changed to select which window is used. As shown, Fig. 1, the hood 1 is provided with windows 2, 3 and the reflector 6 directs radiation to a beam-splitter 8 which reflects I. R. to detector 9. Visible light is transmitted and then reflected by beam-splitter 10 to visible detector 11. Radiation in the overlap region of the windows 2, 3 is transmitted by splitter 10 and is passed to detector 13 (e.g. a goniometer). Detector 13 may be an axis. Normally reflector 6 and hood 1 are gauged for simultaneous rotation, but to change windows the hood may be rotated relative to the reflector. In an alternative, Fig. 2 (not shown) the first beam-splitter transmits IR to detector 9, and reflects visible to the second splitter, which in turn transmits "overlap" wavelengths and reflects visible light.

52. 发明专利

GB1521592A HYDROPHONE 未知
公开(公告)号：GB1521592A
公开(公告)日：1978-08-16
申请号：GB1080676
申请日：1976-03-17
申请人： FRANCE ARMED FORCES
IPC分类号： B06B1/06 , G10K11/20 , H04R1/44
摘要： 1521592 Hydrophones FRANCE ARMED FORCES MINISTER OF 17 March 1976 [11 April 1975] 10806/76 Heading H4J A hydrophone comprises a piezo-electric transducer 8 embedded in synthetic resin 12 forming a surface coating on a reflector to which it is thereby attached. The transducer consists of a flexible membrane 9 attached to a brass ring 11 and carrying on one or both sides a titanium zirconate disc sandwiched between electrodes. The reflector consists of an elastomeric casing 5 containing metal plates 6a, 6b, sandwiching interwoven wires 7 to prevent collapse under hydrostatic pressure.

53. 发明专利

GB1517853A SELF-ERECTING MAST ASSEMBLY 未知
公开(公告)号：GB1517853A
公开(公告)日：1978-07-12
申请号：GB3760876
申请日：1976-09-10
申请人： FRANCE ARMED FORCES
IPC分类号： B63B22/00 , B65B31/00 , E04H12/18 , G12B9/08 , E04H12/00
摘要： 1517853 Linkwork FRANCE ARMED FORCES MINISTER OF 10 Sept 1976 [22 Oct 1975] 37608/76 Heading F2K A self-erecting mast assembly for underwater use comprises a set of tubular mast elements 3 which can fit together and are threaded on to a flexible band 4 attached at one end to a band tensioner 5 and at the other end to a ballast weight 2. Prior to deployment, the tubular elements are packed side-by-side (Fig. 1, not shown) within a casing 1. When the assembly is deployed under water by paying out a suspension cable 8, the casing 1 falls away and, under descent of the ballast weight 2 the band 4 is drawn out so that the tubular elements 3 become aligned along it. Thereafter the band 4 is tensioned by operation of the tensioner 5 so as to cause the tubular elements 3 to fix together and to tension support stays 29, 30. Finally, the weight 2 is released. Various parts of the assembly are described in detail.

54. 发明专利

GB1516996A APPARATUS FOR MEASURING VARIATIONS IN BUOYANCY OF A FLOAT 未知
公开(公告)号：GB1516996A
公开(公告)日：1978-07-05
申请号：GB3731175
申请日：1975-09-10
申请人： FRANCE ARMED FORCES
IPC分类号： G01L1/22 , G01N9/00 , G01G17/00
摘要： 1516996 Measuring buoyancy of a float FRANCE ARMED FORCES MINISTER OF 10 Sept 1975 [23 Sept 1974] 37311/75 Heading G1N(A) Apparatus for measuring variations in buoyancy of a compressible float 6 due to variations in pressure of a liquid 3 e.g. sea-water comprises a ring 8 formed from a thin resilient strip having strain gauges 12a, 12b attached and means 4, 5 for varying the pressure of the liquid 3 in chamber 1. An incompressible weight 7 is suspended from the float and provides a small net downward force on ring 8 when the liquid is under atmospheric pressure. The lower edge of frame 9 provides a stop to prevent overstressing of the ring 8 which may be of spring steel strip with ends rivetted together. Thin-film grid resistor gauges 12 are coated with resin and are connected in a bridge circuit. Pressure is applied to sea-water 3 via the medium of immiscible mineral oil 4.

55. 发明专利

GB1499156A POWER UNIT 未知
公开(公告)号：GB1499156A
公开(公告)日：1978-01-25
申请号：GB3583475
申请日：1975-08-29
申请人： FRANCE ARMED FORCES
IPC分类号： F02B37/20 , F02B37/013 , F02B37/12 , F02B37/16 , F02D37/00 , F02D23/02
摘要： 1499156 Controlling supercharged IC engines FRANCE ARMED FORCES MINISTER OF 29 Aug 1975 [10 Sept 1974] 35834/75 Heading F1B A power unit comprises a fuel-injection I.C. engine (preferably a low compression ratio Diesel) 10 supercharged by a compressor 13 driven by an exhaust-powered turbine 14 and a by-pass pipe 15 directing air not charged to the engine 10 to the turbine 14 via an auxiliary combustion chamber 16. The auxiliary combustion chamber 16 is supplied with fuel by regulating means operative so that the supercharging pressure does not fall below a threshold value, the threshold value being determined as a function of the quantity of fuel injected per cycle into the engine. This ensures that the mixture introduced into the engine 10 remains weak enough to effect sufficient cooling to enable the engine to operate in region III of Fig. 1, which is a plot of engine torque W against speed N. The limits of engine operation are represented by line 6 indicating the maximum output torque (as determined by the maximum peak pressure in the cylinder) and line 8 representing an engine speed of 2500 RPM. Line DJBC represents a limit imposed by restricting the maximum temperature at the engine exhaust valves to 600‹C. For operation in region III (ODB) an excess of air must be supplied to the engine to effect sufficient cooling by keeping the supercharging pressure above the threshold value. Extra fuel is burnt in the auxiliary combustion chamber 16 to accelerate the turbine 14 and compressor 13, above the threshold value, which, since engine torque can be approximated to the quantity of fuel injected into the engine per cycle, is determined as a function of this quantity. Pneumatic regulation. Fuel is pumped via variable orifice 22, 23 into auxiliary chamber 16; the orifice opening size depending upon position of piston 24, which is subjected to supercharging pressure on one side 26 and a reduced pressure on the other at 28. The reduced pressure is determined by bleeding compressed air to atmosphere via a variable orifice 30, 31 whose opening is dependent on the position of the I.C. engine fuel supply rack 18 and hence the quantity fuel injection into the engine per cycle. Thus the threshold value at which variable orifice 22, 23 opens is dependent on the quantity of fuel injected into the engine. In an alternative construction Fig. 4, (not shown) piston (24a) is subjected to atmospheric pressure on one side (28a) and to supercharging pressure modified by bleeding some compressed air to atmosphere through a variable orifice (30a) controlled by the fuel rack 18 on the other side (26a). Electric regulation. Supercharging pressure and I.C. engine fuel control rack position are converted into resistance values in two arms of a Wheatstone bridge circuit, to obtain a difference signal voltage which is amplified as a control signal. The fuel pump supplying the auxiliary chamber is powered by a frequency controlled electric motor such that pump output is proportional to the frequency of the motor supply current. The control signal voltage modulates the frequency of the motor supply current.

56. 发明专利

GB1488424A ROTARY ELECTRICAL CONNECTION DEVICE 未知
公开(公告)号：GB1488424A
公开(公告)日：1977-10-12
申请号：GB786975
申请日：1975-02-25
申请人： FRANCE ARMED FORCES
IPC分类号： H01R39/00 , H01R39/12 , H01R13/00
摘要： 1488424 Rotary coupling FRANCE ARMED FORCES MINISTER OF 25 Feb 1975 [5 March 1974] 7869/75 Heading H2E An electrical connection device, for example for supplying power to a load in a tank turret which is rotatable on ball bearings in races, comprises first and second brushes on a first member (e.g. turret 1) respectively in contact with an annular earth connection track and a current supply track on a second member (e.g. the roof 2 of a tank). The earth connection track being located on a ball bearing race. As described, the brushes (9), 14 are mounted on respective supports 6 connected to the turret 1, and the brushes are connected to the load via leads (10), 15. Current is fed to the supply track 16 through lead 18 which is locked in a connector by screw 20 and rubber plug 25. The current supply track is insulated from the ball bearing race 5 by insulation 17. The earth track 11 is not insulated from race 5.

57. 发明专利

GB1479055A METHOD AND DEVICE FOR POSITIONING A PREFORMED PACKING IN A GROOVE 未知
公开(公告)号：GB1479055A
公开(公告)日：1977-07-06
申请号：GB4113674
申请日：1974-09-20
申请人： FRANCE ARMED FORCES
IPC分类号： B25B27/00
摘要： A process for placing a preformed fitting in a groove located at the periphery of a bore and a device for use in this process. An obstacle with an external diameter slightly less than the diameter of the bore, is positioned immediately beyond the groove. A fitting, which is kept deformed so that it is circumscribed by a circle of diameter which is at most equal to the diameter of the bore, is introduced into the bore and is brought to a right angle with reference to the groove. The deformation of the fitting is then relieved so that the fitting is introduced into the groove. The invention can be used for manipulation and placing of toric pieces made of deformable plastic material.

58. 发明专利

GB1465259A EXPLOSIVE DEVICES 未知
公开(公告)号：GB1465259A
公开(公告)日：1977-02-23
申请号：GB1993270
申请日：1970-04-24
申请人： FRANCE ARMED FORCES
IPC分类号： F42B1/028 , F42B13/10
摘要： 1465259 Hollow fragmentation charges FRANCE ARMED FORCES MINISTER OF 24 April 1970 [24 April 1969] 19932/70 Heading F3A In a hollow charge explosive device, the recess in the explosive charge is lined with a pyramidshaped metal casing which is ejected as a mass of splinters on firing the charge. The base of the pyramid, i.e. the mouth of the recess, may be a regular hexagon or star-shaped. The pyramid may be twisted in order to increase the solid angle over which the splinters are ejected. The fuse of the device may be offset so that the line from the fuse to the apex of the pyramid is not at right angles to the base of the pyramid. In Figs. 5-7, not shown, there are twelve recesses in one charge, each lined with a pyramid-shaped metal casing. The device may be used as the warhead in a surface-to-air or air-to-air missile.

59. 发明专利

GB1464035A SPECTROSCOPIC ANALYSIS APPARATUS 未知
公开(公告)号：GB1464035A
公开(公告)日：1977-02-09
申请号：GB3787874
申请日：1974-08-29
申请人： FRANCE ARMED FORCES
IPC分类号： G01J3/45 , G01J3/28 , G01N21/39 , G01N21/22
摘要： 1464035 Spectroscopic analysis FRANCE ARMED FORCES MINISTER OF 29 Aug 1974 [20 Sept 1973] 37878/74 Heading G1A Spectroscopic analysis apparatus comprises: a source of coherent radiation at several wavelengths: rotatable means for sequentially selecting wavelengths; means for separating radiation into reference and measurement beams; reference and measurement detectors; and a signal processing circuit. A gas laser 1, Fig. 1 containing an active material la, e.g. CO 2 capable of radiating at a band of wavelengths, and having an end reflector 1b and an outlet window 2, may be continuously pumped, or pulsed in synchronism with a motor-driven wavelength selector 3 comprising a grating 4 and a mirror 5 arranged dihedrally. The wavelength selector may alternatively comprise a rotatable prism or a Fabry-Perot system arranged within the laser cavity. Radiation at the selected wavelength is split by a semi-reflective mirror 7 into a reference beam directed at a reference detector 8, and a measuring beam which passes through a collimater 9 and a specimen M, being retro-reflected by a mirror 10 and directed to a measurement detector 11 e.g. a CdTe or HgTe cell. The specimen M may be, e.g., atmosphere suspected of pollution. The effective angular range of the selector 3 may use only 500 out of a possible 20,000 incremental pulses supplied by a position encoder 6, Fig. 2. Coded increments are counted at 13 and decoded at 14, predetermined ones being manually selectable at 14 to occur just before respective wavelengths of interest are scanned by the selector 3. At the beginning of each rotation of the selector 3 a rotation synchronization signal A is fed to a logic circuit 16, and to reference and measurement amplifiers 18, 25 to instruct them each to store a signal representing their own zero drift. As each selected wavelength approaches an indicator signal D causes a generator 15 to supply a gating signal E sufficiently long to outlast the pulse of selected radiation. A reference signal B, amplified and corrected for amplifier drift at 18, is compared with a threshold at 19 and, when of sufficient amplitude, opens an AND gate 17 to start a reference integrator 21 via a line 75. The pulse from the gate 17, after a delay at 26 adjustable to allow time for the measurement beam to complete its return journey, further turns on a measuring integrator 24 receiving the amplified measurement signal L from the detector 11. The integrator 24 output is amplified at 28 with a gain of 1 or 10 selectable by a switch 29. Each one of the integrators 21, 24 is provided with pre-settable means for adjusting the duration of integration. At the end of the measurement integration period the integrator 24 sends a conversion order signal J, Q via an OR gate 23 to two A/D converters 22, 27 which supply respective digital reference and measurement signals to a logic unit 16. When both conversions are complete an AND gate 30 sends a completion signal K to the integrators 21, 24 to reset them and to the logic unit 16 to prepare it to receive the next information. If a reference signal B fails to pass the reference comparator 19 the cycle initiated by the gate 17 will be missed; instead the trailing edge of the gating signal E triggers a restoring circuit 20 which, via the OR gate 23, directly provides a conversion signal Q to the converters 22, 27, which send zero information and a completion signal K to the logic unit 16, thereby ensuring that a blank space is left. In normal operation the restoring circuit is inhibited by the gate 17 output. The logic circuit 16 routes the digital information to a reference store 35, a measurement store 34, a ratio calculator 33, a printer 32 and a tape punch 31.

60. 发明专利

GB1462473A STATIC ELECTRIC RELAY COMPRISING A PYROTECHNIC COMPOSITION 未知
公开(公告)号：GB1462473A
公开(公告)日：1977-01-26
申请号：GB1219774
申请日：1974-03-19
申请人： FRANCE ARMED FORCES
IPC分类号： F42B3/12 , F42C11/00 , H01H39/00 , H03K23/00 , H01H61/00
摘要： 1462473 Thermal switches FRANCE ARMED FORCES MINISTER OF 19 March 1974 [19 March 1973 25 Feb 1973] 12197/74 Addition to 1378328 Heading H1N An electric relay comprises spaced electrodes 3a, 3b insulated from each other and having confronting parallel faces with pyrotechnic material 4 between the faces and input means 10, 11 to initiate a pyrotechnic reaction of material 4 to produce between the faces a metallic conductive body to connect electrodes 3a, 3b physically and electrically. Input means 10, 11 is an electric filament connected to terminals 9a, 9b, and a second pyrotechnic material. The pyrotechnic material 4 may comprise a mixture of an oxide of a metal of the group tin, lead, copper and silver, and a reducing metalloid of the group boron and silicon. The mixture may contain methylsilicone oil. The mixture is insulating but upon reduction, the metal liberated fills and effects a weld between the electrodes 3a, 3b. Electrodes 3a, 3b may be coated with a layer of combustible insulating varnish or a layer of tin. In a second embodiment, Figs. 3, 4 (not shown) concentric cylindrical electrodes with a central core (21) are attached to heavy current threaded stud terminals and the input means (25, 26) fits into an orifice (23) in the side of the insulating casing. In a third embodiment, Figs. 5-7 (not shown) four pairs of concentric cylindrical electrodes (37a, 37b) are arranged in insulation with four pairs of plug-in wafer terminals (33a) at one axial end of the electrodes and four pairs of plug-in wafer terminals (32a) for the input means at the other axial end. In the three embodiments in Figs. 8-11, only Fig. 8 shown, in addition to the pyrotechnic material 112 between the cylindrical electrodes 109, 110, there is an air-gap 113 between the electrodes to increase the insulation and break-down voltage. Material 112 is retained by an enclosure 111 which may be of paper, or of tin which melts and helps bridge electrodes 109, 110. The input means is a filament 107 between terminals 105 igniting a second pyrotechnic material 116. The embodiment in Figs. 9, 10 (not shown) is similar to that in Figs. 5-7 except for the air gap and the central electrode being a solid rod 125. The embodiment in Fig. 11 (not shown) is similar to that in Figs. 3, 4 apart from air gaps between electrodes (147, 148) and between central core (150) and electrode (147). In the embodiments in Figs. 9-11, the pyrotechnic material is retained by paper or tin enclosing walls. Also in Figs. 8-11 there is a space (117 in Fig. 8) for the gases produced by the ignition of the input means.

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