GB1411217A - Control apparatus - Google Patents
Control apparatusInfo
- Publication number
- GB1411217A GB1411217A GB3676271A GB3676271A GB1411217A GB 1411217 A GB1411217 A GB 1411217A GB 3676271 A GB3676271 A GB 3676271A GB 3676271 A GB3676271 A GB 3676271A GB 1411217 A GB1411217 A GB 1411217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- knob
- control
- motor
- speed
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
- H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds
- H02P5/49—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds by intermittently closing or opening electrical contacts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Control Of Position Or Direction (AREA)
- Control Of Stepping Motors (AREA)
Abstract
1411217 Photo-electric motor control WICKMAN MACHINE TOOL SALES Ltd 27 July 1972 [5 Aug 1971] 36762/71 Heading G1A [Also in Divisions G3 H1 and H2] A stepping motor 17 is supplied through a decoder and selector 19 and an amplifier 20, the former element being controlled by either one of two control circuits 12, 14, 21, 22 and 13, 15, 18 whereby the motor may drive in a desired direction of rotation at a desired speed through manual operation of rotary knobs associated respectively with members 12, 13, the knob of member 12 being adjustable in either direction from a centrezero position to a fixed angular position representative of a desired speed and the knob of member 13 being continuously rotatable in either direction to produce a motor speed dependant upon the speed of knob rotation. Member 12 produces a signal which controls an oscillator 21 supplying a binary counter 22, a switch 14 being operable to change the speed range of the control. Member 13 produces a signal which is fed to a data selector 18, a further speed range switch 15 being associated with this control. Fig. 5 shows the member 13 which consists of a rotatable knob (having the same reference) operating a shaft 23 carrying a disc 25 having four radially-displaced rows of holes forming inner and outer pairs, the rows of each pair being circumferentially offset, Fig. 6 (not shown). Each row co-operates with a light source 34 and photo-electric cell 35 so that rotation of the knob 13a produces a signal pattern whose nature and frequency depends on the direction and speed of the knob rotation, which signal pattern is fed to the data selector 18. Tactile indication of the relationship between knob movement and the number of steps of the motor is provided by a flange 27 having serrations engaging a spring detent 36 on the housing 24. Instead of using photo-electric means, the signal pattern may be produced by using a disc 25 having rows of depressions or alternating conductive and non- conductive portions which control or constitute switch contacts. Fig. 7 shows the member 12 which consists of a rotatable knob (having the same reference) operating a shaft 37 carrying a cam 45 controlling micro-switches 49, 51 determining the - direction of motor rotation. The cam also carries a pin 43 co-operating with 180 degrees arcuate slots 44 in discs 41, 42 spring-urged against a stop corresponding to the centre-zero position of the knob, Fig. 8 (not shown), the slots being diametrically opposed so that operation of the knob moves one or other of the discs via members 43, 45, after which a locking mechanism is operated, Fig. 9 (not shown) to hold members 37, 41 or 42 and 45 in the set position. The shaft 37 also operates a rotary potentiometer 39 which controls the frequency of the oscillator 21. The stepping motor and its control apparatus may be duplicated to control the two lead screw operated slides which adjust the position of the grinding wheel of a grinding machine, Figs. 1, 2 and 3 (not shown).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3676271A GB1411217A (en) | 1971-08-05 | 1971-08-05 | Control apparatus |
DE2238132A DE2238132A1 (en) | 1971-08-05 | 1972-08-03 | REMOTE CONTROL FOR A ROTATING PART |
CH1152772A CH580302A5 (en) | 1971-08-05 | 1972-08-03 | |
FR7228849A FR2150039A5 (en) | 1971-08-05 | 1972-08-04 | |
IT69554/72A IT964883B (en) | 1971-08-05 | 1972-08-04 | REMOTE CONTROL DEVICE |
JP47078722A JPS4829082A (en) | 1971-08-05 | 1972-08-05 | |
DD164900A DD102622A5 (en) | 1971-08-05 | 1972-08-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3676271A GB1411217A (en) | 1971-08-05 | 1971-08-05 | Control apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1411217A true GB1411217A (en) | 1975-10-22 |
Family
ID=10391001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3676271A Expired GB1411217A (en) | 1971-08-05 | 1971-08-05 | Control apparatus |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4829082A (en) |
CH (1) | CH580302A5 (en) |
DD (1) | DD102622A5 (en) |
DE (1) | DE2238132A1 (en) |
FR (1) | FR2150039A5 (en) |
GB (1) | GB1411217A (en) |
IT (1) | IT964883B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2205081A (en) * | 1987-05-30 | 1988-11-30 | Strapack Corp | Control apparatus in strapping machine |
WO1998009782A1 (en) * | 1996-09-06 | 1998-03-12 | Robert John Caddaye | Remote constant surface speed control |
CN1315617C (en) * | 2004-05-27 | 2007-05-16 | 张国梁 | Two-purpose grinding machine for lead screw and external circle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4289983A (en) * | 1979-06-29 | 1981-09-15 | International Business Machines Corporation | Encoder for monitoring bidirectional motion |
-
1971
- 1971-08-05 GB GB3676271A patent/GB1411217A/en not_active Expired
-
1972
- 1972-08-03 DE DE2238132A patent/DE2238132A1/en not_active Withdrawn
- 1972-08-03 CH CH1152772A patent/CH580302A5/xx not_active IP Right Cessation
- 1972-08-04 FR FR7228849A patent/FR2150039A5/fr not_active Expired
- 1972-08-04 IT IT69554/72A patent/IT964883B/en active
- 1972-08-05 JP JP47078722A patent/JPS4829082A/ja active Pending
- 1972-08-07 DD DD164900A patent/DD102622A5/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2205081A (en) * | 1987-05-30 | 1988-11-30 | Strapack Corp | Control apparatus in strapping machine |
GB2205081B (en) * | 1987-05-30 | 1991-05-08 | Strapack Corp | Control apparatus for a strapping machine |
WO1998009782A1 (en) * | 1996-09-06 | 1998-03-12 | Robert John Caddaye | Remote constant surface speed control |
CN1315617C (en) * | 2004-05-27 | 2007-05-16 | 张国梁 | Two-purpose grinding machine for lead screw and external circle |
Also Published As
Publication number | Publication date |
---|---|
IT964883B (en) | 1974-01-31 |
FR2150039A5 (en) | 1973-03-30 |
JPS4829082A (en) | 1973-04-17 |
DD102622A5 (en) | 1973-12-20 |
DE2238132A1 (en) | 1973-03-01 |
CH580302A5 (en) | 1976-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |