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1. 发明专利

GB828646A Improvements in or relating to voltage reference circuits 未知
公开(公告)号：GB828646A
公开(公告)日：1960-02-24
申请号：GB2098357
申请日：1957-07-03
申请人： FERRANTI METERS LTD DENIS , GEORGE COWAN FLEMING , FREDERICK HAROLD BELSEY
IPC分类号： G05F3/18
摘要： 828,646. Voltage measuring bridges. FERRANTI METERS Ltd., D., FLEMING, G. C., and BELSEY, F. H. Sept. 30, 1958 [July 3, 1957], No. 20983/57. Class 37. [Also in Group XL (c)] A bridge circuit has-resistors in one pair of opposite arms and one or more Zener diodes or like semi-conductor devices in each of the other pair of opposite arms, the diode or diodes in one arm being of opposite sign of temperature co-efficient from that of those in the other arm. In the circuit shown, as the voltage across terminals 9 and 10 increases, the current through the diagonal 5 increases until the zener diodes 3 and 4 begin to conduct when the diagonal current decreases to zero and then increases in the opposite direction. The diodes 3 are 4-volt diodes while the diodes 4 are 6-volt diodes, the two sets of diodes having opposite temperature co-efficients so that the voltage at which the current through the diagonal 5 is zero does not vary with temperature. A stepwise change in current through the diagonal may be obtained by suitably choosing the number of diodes in the arms of the bridge. The diagonal 5 may be constituted by a relay or may comprise a meter. In the latter case an open scale is obtained in the region where the current is reversing.

2. 发明专利

GB592208A Improvements in or relating to electric follow-up or repeater systems 未知
公开(公告)号：GB592208A
公开(公告)日：1947-09-11
申请号：GB2223539
申请日：1939-07-31
申请人： CECIL DANNATT , FREDERICK HAROLD BELSEY , VICKERS ELECTRICAL CO LTD , VICKERS ARMSTRONGS LTD
IPC分类号： G05D3/14
摘要： 592,208. Fluid-actuated servomotorcontrol systems. DANNATT, C., BELSEY, F. H., METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., 'and VICKERS-ARMSTRONGS, Ltd. July 31, 1939, Nos. 22235/39, 4638/40 and 13814/40. [Class 135] [Also in Group XXXVIII] ‹A variable speed hydraulic drive used in an electric follow-up system comprises a control valve (not shown) coupled to a piston rod 100, the piston being controlled by a double-acting cylinder 102 and valve 106 which is actuated by a two-winding moving coil 114 mounted in a pot magnet 117. The coil is carried by an anchored leaf spring 112 connected to a floating lever 110 which actuates valve 106. The upper end of the lever is connected between spring 119 and dashpot 120 coupled to piston rod 100. The point of connection of valve 106 to lever 110 is preferably adjustable and the range of movement of piston 101 in response to large displacements of the control shaft may be limited. Sticking of valve 106 may be overcome by applying 50 cycle A.C. to the moving coil.

3. 发明专利

GB889193A Improvements in or relating to carbon pile regulators 未知
公开(公告)号：GB889193A
公开(公告)日：1962-02-07
申请号：GB2097957
申请日：1957-07-03
申请人： FERRANTI METERS LTD DENIS , FREDERICK HAROLD BELSEY
IPC分类号： H02P9/22
摘要： 889,193. Automatic regulators. FERRANTI METERS Ltd., DENIS, and BELSEY, F. H. Oct. 2, 1958 [July 3, 1957], No. 20979/57. Class 38 (4). In an automatic regulator, the force to compress a carbon-pile 3 to vary its resistance is directly applied by a torque-motor 17 through an arm 11 and a push-rod 12. The electrical connections to the carbon-pile are made through an adjustable end-contact 5 and a light spring diaphragm 6 with a contact disc 19. When used as a field current regulator for a generator, a low-resistance at starting is provided by shunting the carbon-pile with a resistor or by applying pressure to the carbon-pile by a solenoid 20. The torque-motor comprises a rectangular laminated frame 7, having poles 8 carrying coils 9, and a slotted armature 10. The torque-motor may be replaced by a directlyacting solenoid. Specification 866,748 is referred to.

4. 发明专利

GB610029A Improvements in control systems of the correspondence kind for movable members 未知
公开(公告)号：GB610029A
公开(公告)日：1948-10-11
申请号：GB1045745
申请日：1945-04-25
申请人： FREDERICK HAROLD BELSEY , DAVID TRAVIS BROADBENT , VICKERS ELECTRICAL CO LTD
IPC分类号： G05D3/14
摘要： 610,029. Electric control systems. BELSEY, F. H., BROADBENT, D. T., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 25, 1945, No. 10457. [Class 40 (i)] [Also in Group XXXV] In a system for maintaining positional correspondence between a control member and a controlled member, control of motive equipment for the controlled member is influenced by backlash or resilience in the drive between the motive equipment and the controlled member, whereby there is less stiffness of control for movement of the motive equipment away from the position corresponding with the required position of the controlled member than for the movement of the motive equipment and controlled member together away from such a position. Fig. 1 shows a modification of the system described in Specification 592,208 for automatically maintaining a movable body 2, driven through reduction gearing 25 by a D.C. motor 3, in positional correspondence with the setting of a hand-wheel 1, a transmitter selsyn 13, the rotor of which is supplied with A.C. and driven by the hand-wheel is interconnected with a reset selsyn 16 the rotor of which is driven by the motor. and suppresses a thermionic valve amplifier 8, an A.C. voltage, the amplitude and sense of which is dependent on the magnitude and sense of any misalignment between motor and handwheel. Amplifier 8 controls the field excitation of a metadyne generator 6 supplying the motor which operates until the misalignment is corrected. The modification is the introduction of an additional reset selsyn 26, the rotor of which is driven by the movable body and supplies an A.C. voltage, the amplitude and sense of which is dependent on the magnitude and sense of misalignment between the movable member and the hand-wheel. This voltage is combined with the voltage from reset selsyn 16 to constitute the input to amplifier 8. The two voltages are normally additive during correction, but under certain conditions, due to backlash they oppose each other and reduce motor torque. This reduction permits a greater sensitivity or stiffness of control to be employed over the major portion of the correcting period without instability due to backlash. Potentiometers 35 and 36 controlling the ratio of the voltages from selsyns 16 and 26 are preset for optimum conditions and may be ganged so that, for a given misalignment, the voltage ratio may be adjusted without altering the total voltage input to amplifier 8. As in Specification 592,208, a further selsyn system may be provided to give coarse control and/or amplifier 8 may introduce a first derivative component of control. The following alternative modifications are described : (a) The reset selsyn driven by the movable member is connected in cascade between the transmitter selsyn and the reset selsyn driven by the motor. The output of the latter only, is then applied to the amplifier but it contains components respectively dependent on the misalignment of the motor and movable member relative to the hand-wheel. The ratio of these components is determined by the gear ratios chosen for the drives to the selsyn units; (b) In a system for the automatic levelling of a platform about a single axis on a ship the transmitter selsyn is mounted on the platform with a gyro vertical so that its rotor is adjusted by the gyro and its stator moves with the platform to provide reset. Two other selsyn units are mounted on the deck and transmitter selsyn and its amplifier, one driven by levelling motor and the other by the platform. In the absence of backlash the effects of these two additional selsyns cancel but as a result of backlash a component of control is added in the desired sense. Alternatively, the gyro may be mounted on the deck; (c) as an alternative to the cascade connection in (b) above, the two additional selsyns driven by the motor and the platform respectively are arranged to produce a voltage dependent on backlash which is applied through an adjustable potentiometer as input to the amplifier in combination with a voltage obtained from a selsyn or other inductive unit responsive to movement between the platform or motor and a gyro vertical on the deck or platform.

5. 发明专利

GB608256A Improvements in tracking sights and like arrangements 未知
公开(公告)号：GB608256A
公开(公告)日：1948-09-13
申请号：GB17346
申请日：1946-01-02
申请人： FREDERICK HAROLD BELSEY , VICKERS ELECTRICAL CO LTD
IPC分类号： G05D3/14 , H03K7/00 , H04B14/02
摘要： 608,256. Gun sighting-apparatus. BELSEY, F. H., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Jan. 2, 1946, No. 173. [Class 92 (ii)] A gun-sight is made to track a target by a control of the kind which causes the sight to move at a rate proportional to the displacement of the control and through an additional angle proportional to the displacement of the control, and is characterised in that to an output quantity, which may be fed to predicting apparatus, dependent on the displacement of the control member is added algebraically a quantity dependent on the velocity of the control member, thus compensating for the time lag in the displacement of that member in response to changes in target velocity. In the construction shown, movement of a hand wheel 2 causes the displacement of a ball carriage 7 over a constant speed disc 4, the ball carriage serving to drive the sight 1 at an angular speed proportional to such displacement. In addition, the shaft 10 of the hand wheel is geared via a differential 12 to the sight to move the sight through an angle proportional to the displacement of the hand wheel. Shaft 10 is also geared to a generator 23 whose conductors lead to a potentiometer 26 and a time-delay circuit 27, 28, those devices forming part of a circuit whose function is to displace a shaft 21 by an amount proportional to the velocity of wheel 2. The time-delay circuit is connected as shown to the ends of a centre-tapped resistance 34, to the secondary windings 32, 33 of a transformer and to the grids of valves 30, 31. The primary winding 40 of the circuit is connected to the rotor 44 of a selsyn 43 whose rotor is positioned by the shaft 21 of a servomotor 22. This servomotor has its armature connected through a resistance 61 with a source 62 of direct current, and its split-field winding 63 are connected to an amplifier 60 in circuit as shown with the valves 30, 31. In operation, the voltage applied to resistor 34 by the time-delay circuit 27, 28 is opposed by that applied by the selsyn via the leads 41, 42 from the rotor 44, and will balance one another when the shaft 21 is positioned in proportion to the velocity of the hand wheel. The shaft 21 leads to a differential 20 to which also leads a shaft 16 geared to the shaft 10, and the sum of the movements is applied to the predicting apparatus 19.

6. 发明专利

GB591285A Improvements relating to gear mechanisms 未知
公开(公告)号：GB591285A
公开(公告)日：1947-08-13
申请号：GB336345
申请日：1945-02-09
申请人： FREDERICK HAROLD BELSEY , KENNETH FREDERICK SHRUBB , VICKERS ELECTRICAL CO LTD
IPC分类号： F16H57/12
摘要： 591,285. Toothed gearing. BELSEY, F. H., SHRUBB, K. F., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 9, 1945, No. 3363. [Class 80 (i)] Backlash between the gears 1, 2 of instrument type mechanism having their teeth of magnetisable material, is prevented by magnetic flux, produced by a coil 3, passing through the teeth. A return path for the flux may be provided by a core of magnetic material. According to the Provisional Specification, the gear shafts may be of magnetic material, the magnetic circuit through the gears and shafts being completed through the mounting means for the shafts.

7. 发明专利

GB866784A Improvements relating to carbon pile regulators 未知
公开(公告)号：GB866784A
公开(公告)日：1961-05-03
申请号：GB2098057
申请日：1957-07-03
申请人： FERRANTI METERS LTD DENIS , FREDERICK HAROLD BELSEY , GEORGE COWAN FLEMING
IPC分类号： H02P9/22
摘要： 866,784. Carbon-pile regulators. DENIS FERRANTI METERS Ltd., BELSEY, F. H., and FLEMING, G. C. Oct. 2, 1958 [July 3, 1957], No. 20980/57. Class 38 (4). In a carbon-pile regulator, pressure is exerted on a carbon pile 3 by a push rod 12 driven by a torque arm 11 connected to a slotted rotor 10 of a moving-iron-type torque motor. The carbon pile is enclosed in an insulating tube 5 with a finned radiator 1 and is retained by end plates 4 and a flexible member 6. The stator of the torque motor comprises a rectangular laminated core 7 having two slotted poles 8 carrying coils 9. A set screw 15 acts as a back-stop for the torque arm 11.

8. 发明专利

GB611046A Improvements in and relating to control systems of the correspondence kind for movable members 未知
公开(公告)号：GB611046A
公开(公告)日：1948-10-25
申请号：GB1445145
申请日：1945-06-07
申请人： FREDERICK HAROLD BELSEY , DAVID TRAVIS BROADBENT , VICKERS ELECTRICAL CO LTD
IPC分类号： G05D3/12
摘要： 611,046. Electric control systems. BELSEY, F. H., BROADBENT, D. T., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 7, 1945, No. 14451. [Class 40 (i)] [Also in Group XXXV] In a system for automatically maintaining positional correspondence between a motordriven movable member and a control member by controlling the motor in accordance with deviation of the movable member from correspondence, a component of control for the motor is dependent on relative velocity between the motor and the movable member resulting from resilience or backlash in the drive. The Figure shows a modification of the system, described in Specification 610,029, for automatically maintaining without instability due to drive resilience or backlash, a movable body 2, driven by a D.C. motor 3, in positional correspondence with the setting of a handwheel 1. As in the above-mentioned Specification a transmitter selsyn 13 1 , the rotor of which is supplied from an A.C. source and driven by hand-wheel 1, is interconnected with reset selsyns 16 1 and 26 1 , the rotors of which are driven by motor 3 and movable body 2, respectively, and supply to a thermionic valve amplifier 8, through conductors 9 and 10, an A.C. input signal which thus contains components dependent on misalignment between motor 3 and hand-wheel 1 and between movable body 2 and hand-wheel 1. The relative magnitude of these components is preset by potentiometers 35 and 36 1 for optimum stable operation. Amplifier 8 controls the field excitation of a metadyne generator 6 supplying motor 3 which operates to correct misalignment. The modification is the introduction of D.C. tachometer generators 15, 16, 17 coupled to a hand-wheel 1, motor 3, and movable body 2, respectively, to introduce, through conductors 11, 12, velocity components into the input of amplifier 8. Fractions of the voltages of generators 16 and 17, predetermined by the setting of potentiometers 18 and 19 are additive and oppose the voltage of generator 15 when the velocities of hand-wheel, motor and movable body are in the same sense, and when the three velocities are equal, the arrangement is such that the resultant D.C. voltage applied to amplifier 8 is zero. Potentiometers 18 and 19, which may be ganged like potentiometers 35 1 and 361 are set for optimum stable operation. The first stage of amplifier 8 is constituted by a pair of triode valves 30, 31, provided with cathode bias 36 1 to the grid circuits of which the A.C. misalignment signal is applied through a transformer having a primary 33 and secondaries 32, 32a, while the D.C. velocity components are introduced through a centre-tapped potentiometer 35. The valve anodes are supplied on phase opposition from the A.C. source through transformers 37 and 38 and the remaining amplifier stages are responsive to the difference of the two anode currents. In a modification, Fig. 2 (not shown), the position of a platform is stabilised about a single axis by a gyro and selsyn system as in Specification 610,029 with the addition of three D.C. tachometer generators introducing velocity components. The voltage of one of these generators, driven by the motor adjusting the platform position opposes that of a second, driven by the platform, and a fraction of the resultant voltage, pre-selected by a potentiometer, is combined with the voltage of the third generator, which is differentially driven from the gyro output shaft and the platform or motor, to constitute the velocity component of the amplifier input. The Specification refers to systems in which the velocity component is the only component of control. An electro-magnetically-controlled hydraulic motor may replace the electric motor in the arrangement described. Specification 592,208 also is referred to.

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