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1. 发明授权

US3493827A Digital coarse and fine servocontrol system 失效
标题翻译：数字噪声和精细伺服系统
公开(公告)号：US3493827A
公开(公告)日：1970-02-03
申请号：US3493827D
申请日：1966-05-09
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： G05B19/39 , H02P5/00 , G05B19/32
CPC分类号： G05B19/39 , G05B2219/35436 , G05B2219/41309 , G05B2219/43194 , G05B2219/50334 , Y10T409/30868

2. 发明专利

GB1120962A Improvements in or relating to control systems 未知
公开(公告)号：GB1120962A
公开(公告)日：1968-07-24
申请号：GB3990165
申请日：1965-09-18
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： B23Q35/121 , B23Q35/16
摘要： 1,120,962. Copying. TELEHOIST Ltd. 19 Sept., 1966 [18 Sept., 1965], No. 39901/65. Headings B3K and B3T. [Also in Division G3] In a pattern-controlled machine tool, such as a lathe, milling machine, profile grinder or polisher or profile sheet cutter, the tool is controlled in accordance with both the position and velocity of the pattern follower, thereby reducing the velocity error of the tool. In Fig. 2, the workpiece 22 and pattern 3 are rotated by hydraulic motor 18 via gearbox 19. At the start of a machining cycle, hydraulic fluid from line 13 is directed by control unit 17 to line 23 to retract piston 25 to disengage locking pin 28 from gearbox shaft 29. Solenoid 30 is then energized to supply ram 9 via restriction 35. The ram cylinder moves leftwards to cause tool-holder 1 to approach the workpiece. This movement of the ram cylinder also causes movement of the housing of valve 8 so that pattern follower 2 is caused to approach the pattern and the movement ceases when the tool holder reaches the position defining the start of machining. At this point, a micro-switch (36) is operated by the follower and causes both the energization of solenoid 37 to bypass restriction 35 and the supply of fluid to motor 18. Prior to the end of machining, the follower engages a second microswitch (39) to cut off the supply to motor 18 and engage locking pin 28 with shaft 29. Solenoid 30 is then de-energized and valve 12 is opened for an interval to retract the tool holder. During machining, valve 8 is controlled by follower 2 and follow-up is achieved by connecting ram 9 to the housing of valve 8. The signal representing the velocity of the follower is generated by a tachometer 6, driven through rack-and-pinion gearing, and fed to valve 12. In Fig. 3 the feeler 2 is pivotable with body 54 about axis Y-Y and its movement is transmitted to valve 8 via a leaf-spring (68), carried by nut 69, and probe 65 pivotable about axis Z-Z. A spring 64 biases body 54 so that feeler 2 contacts the pattern. The feeler is retained on body 54 by a spring detent (63) which urges the feeler upwardly so that a pin (62) thereon engages in a notch (60) in a yoke (59) connected to body 54. In the diagrammatic system of Fig. 6, not shown, the position and velocity signals from the follower are received by a mixing amplifier (102) which controls the ram (9) via an electrohydraulic servo-valve (103). The movement of the tool-holder is fed back to the linkage of the follower by an electrical position transducer (100).

3. 发明专利

GB1136821A Improvements in or relating to numerical control systems 未知
公开(公告)号：GB1136821A
公开(公告)日：1968-12-18
申请号：GB630565
申请日：1965-02-13
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： G05B19/39
摘要： 1,136,821. Programmed control of position. TELEHOIST Ltd. May 5, 1966 [Feb.13, 1965], No. 6305/65. Heading G3N. A numerical control system for positioning an element relatively to an earlier or datum position comprises a digital control section which is operative during most of the measured movement and an analogue control section which is operative during final positioning. As shown, a lead-screw is driven by an hydraulic motor 2, the speed of which is determined by a controller 3 supplied with hydraulic fluid through a solenoid valve 5 from a pump 4. The valve 5 cuts out the controller 3 and brings in a slow-speed restrictor 6. Driven from the other end of the lead-screw is an induction transducer 8 and a photo-electric pulse producing device 9 which, through a pulse shaping circuit 20, drives a stepping motor 10 coupled to the rotor of the transducer. The pulses from the circuit 20 are also fed to counter 45 having a bank of manual switches 46, set up for cutter offset, which, when empty, transfers the pulses by an electronic switch 21 to count down a displacement counter 23 set up by manual switches 24. At a first predetermined count during emptying the counter 23 provides a signal which actuates the solenoid valve 5 to bring into operation the slow-speed restrictor 6, and at a second predetermined count an electronic relay 19 disconnects the pulsing device 9 from the circuit 20 and connects it to a circuit 46 which provides a pulse train which rapidly empties the counter 23 and positions the stepping motor in advance of the lead-screw. At zero count, a digital to analogue change-over switch 42 renders operative relay contacts 40 and isolates the stepping motor 10. The hydraulic motor is then actuated through the contacts 40 by a relay 38 responsive to the positional signal from the transducer 8 through a demodulator 37. A manually set potentiometer 43 provides fine adjustment of the final position. In a modification, a high-speed resetting counter 50 is connected between a gate 52 and a two-way switch 51 which feed the pulses from the device 9 to cycle the counter 50 and countdown the displacement counter 23 until the table is within a short distance from the final position when the pulses are routed to the stepping motor 10 instead of the counter 50. The count in counter 23 is set through binaryto-decimal decode devices 26 and stores 28 by uni-selectors 27 responsive to a tape-reader 25. The tape-reader additionally sets the count in the off-set counter 45 and the speed of the hydraulic motor 2 by adjustment of the controller 3.

4. 发明专利

GB1216890A IMPROVEMENTS IN OR RELATING TO FLOW CONTROLLERS 未知
公开(公告)号：GB1216890A
公开(公告)日：1970-12-23
申请号：GB1842468
申请日：1968-04-18
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH , HENDERSON FRANK
IPC分类号： F16K3/08
摘要： 1,216,890. Valves. TELEHOIST Ltd. 21 May, 1969 [18 April, 1968], No. 18424/68. Heading F2V. In a valve (10, Fig. 1, not shown), there is disposed between the inlet (13) and outlet (16) a flat plate having an elongate orifice 15, which flat plate has biased thereagainst a rotatable plate 17 having a toothed outer periphery, the individual teeth 22 of the plate 17 each cooperating with the orifice 15 to define variablysized flow passages between the inlet and outlet. Rotation of plate 17 is effected through gearing (20) and a stepping motor (21) which is responsive to electrical signals. It is stated that the various orifice areas follow a geometrical progresson between the fully open and closed states.

5. 发明专利

DE1563839A1 未知
公开(公告)号：DE1563839A1
公开(公告)日：1970-06-18
申请号：DE1563839
申请日：1966-05-20
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： G05B19/39

6. 发明专利

GB1171214A Improvements in Servo Systems 未知
公开(公告)号：GB1171214A
公开(公告)日：1969-11-19
申请号：GB1951367
申请日：1967-04-27
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： G05D3/14
摘要： 1,171,214. Automatic speed control. TELEHOIST Ltd. July 25, 1968 [April 27, 1967], No.19513/67. Heading G3R. To prevent any jerky motion of a driven member at relatively slow speeds the D.C. gain and A.C. gain of the operational amplifier 15 whose output determines the movement of the member are increased simultaneously by switchable means responsive to the occurence or selection of a predetermined slow speed, a velocity feedback loop feeding to the amplifier input a signal representing the actual rate of movement of the member. The member is driven by a hydraulic motor 11 controlled by flow of hydraulic fluid through tubes 12 of a servovalve 10 in accordance with the signal received by a coil 13 from the output of a driver amplifier 16 fed by amplifier 15. Amplifier 15 has a resistive feedback path 22 and a capacitative feedback path 23 controlling the D.C. gain and A.C. gain respectively. Resistor 25 and capacitor 27 are short circuited at high speeds by the closing of contacts 28 and 29 of a relay having a coil 30. Actual motor speed is sensed by a tachogenerator 14 and fed to amplifier 15. Motor speed and direction are determined by the choice or setting of a potentiometer 17, the older 20 being coupled to amplifier 15 through an R.C. smoothing filter 21 for preventing step inputs. The relay is operative when the desired motor speed is above a preset level, the sensing unit 31 responding to the voltage at slider 20 or to the choice of potentiometer. If required there may be separate transition points, the lower for falling speeds and the higher for rising speeds. A dither oscillation is coupled to the input of amplifier 16, when the relay closes a contact 32 to oscillator 33, to overcome stiction. A system for controlling the angular position of the motor shaft includes a potentiometer 40, Fig. 2, for selecting the required position, feeding one input of a summing amplifier 41 whose other input is fed from the output of a transducer 42 responsive to actual position of the shaft or of the driven member. The output of the amplifier feeds a system 43 comprising the system of Fig.1 except that potentiometer 17 is replaced by the output of amplifier 41. The velosity feedback provides damping to prevent too rapid approach of a controlled member to a selected position, the relay being automatically operable on the achievement of a low speed. The Fig. 1 system may control surface finishing apparatus.

7. 发明专利

FR1484053A 未知
公开(公告)号：FR1484053A
公开(公告)日：1967-06-09
申请号：FR64095
申请日：1966-06-03
申请人： TELEHOIST LTD
发明人： TINKLER KENNETH
IPC分类号： G05B19/39

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