GB962043A - Electrical control device - Google Patents

Electrical control device

Info

Publication number
GB962043A
GB962043A GB28734/62A GB2873462A GB962043A GB 962043 A GB962043 A GB 962043A GB 28734/62 A GB28734/62 A GB 28734/62A GB 2873462 A GB2873462 A GB 2873462A GB 962043 A GB962043 A GB 962043A
Authority
GB
United Kingdom
Prior art keywords
shade
light
control
voltage
cells
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
Application number
GB28734/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cutler Hammer Europe Ltd
Original Assignee
Brockhurst Igranic Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brockhurst Igranic Ltd filed Critical Brockhurst Igranic Ltd
Publication of GB962043A publication Critical patent/GB962043A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/012—Automatic controllers electric details of the transmission means
    • G05B11/017—Automatic controllers electric details of the transmission means using photo-electric means
    • 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02—Details
    • H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter

Abstract

962,043. Photo-electric control devices. BROOKHIRST IGRANIC Ltd. July 26, 1962 [Sept. 12, 1961], No. 28734/62. Heading G1A. In an electrical control device for example for controlling the regulator of an electric motor, an opaque shade 16 is movable between a light source in the form of a luminescent surface 10 and a light sensitive surface of a photo-electric means to vary the illuminated area of the light sensitive surface and thus vary an electrical parameter of the said photo-electric means to vary an output from the device, said surfaces being arranged substantially parallel and close together whereby the light sensitive surface would be substantially uniformly illuminated but for the said shade. In the embodiment shown an arcuate shade 16 secured to a control rod 18 pivoted at 20 is movable between an electroluminescent panel 10 connected to an A. C. supply, and a pair of selfgenerating selenium cells 12 and 14 each independently connected to a motor regulator (not shown) by lines 15, 17 and 19, 21 respectively to provide a pure D. C. voltage to control the speed of the motor. The shade is shaped as shown in Fig. 2 to allow an increasing amount of light to fall on one cell or the other as the shade is moved to the right or left, with a corresponding increase in low power D. C. voltage from the exposed cell in a manner directly related to the contour of the shade. In a further embodiment (Fig. 3 not shown) the shade is shaped to provide a "dead" band when the control rod is initially moved from its central position between the cells in either direction with a slowly increasing light intensity on one cell, and in another embodiment (Fig. 4 not shown) the shade is shaped to allow a small amount of light to reach both cells when the control rod 18 is in the central position and increases the light intensity on one cell rapidly on movement of the rod from this position. Variation of the intensity of the light from the panel 10 by varying its applied A. C. voltage may be used to provide an additional control and variation of the frequency of the applied A. C. voltage which will alter the wavelength of the light emitted by the panel 10 may be used in conjunction with coloured filters between-the panel and the cells 12 and 14 to provide a third control.
GB28734/62A 1961-09-12 1962-07-26 Electrical control device Expired GB962043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US137653A US3196278A (en) 1961-09-12 1961-09-12 Area type photo-electric control device

Publications (1)

Publication Number Publication Date
GB962043A true GB962043A (en) 1964-06-24

Family

ID=22478458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28734/62A Expired GB962043A (en) 1961-09-12 1962-07-26 Electrical control device

Country Status (2)

Country Link
US (1) US3196278A (en)
GB (1) GB962043A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662373A (en) * 1970-02-26 1972-05-09 Fabri Tek Instr Inc Information display system
US7832591B2 (en) 2007-05-18 2010-11-16 Parata Systems, Llc Methods and apparatus for dispensing solid pharmaceutical articles

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753487A (en) * 1956-07-03 Headlight control system
US2030854A (en) * 1933-03-30 1936-02-18 George W Calver Constant intensity illumination system
US2780731A (en) * 1951-08-24 1957-02-05 Westinghouse Electric Corp Controlling the luminosity of a phosphor screen
US2740901A (en) * 1951-12-29 1956-04-03 Bell Telephone Labor Inc Differential photocell detector using junction semiconductors
US2879405A (en) * 1953-06-29 1959-03-24 Rca Corp Semi-conductor photo-electric devices
US2858449A (en) * 1953-07-20 1958-10-28 Hawaiian Dev Company Ltd Radioactive means and technique for integrating variable quantities
US3015731A (en) * 1954-08-21 1962-01-02 Philips Corp Radiation indicating device
US2904697A (en) * 1956-07-12 1959-09-15 Gen Electric Signal translating devices and circuits
US2896086A (en) * 1957-07-01 1959-07-21 Hewlett Packard Co Attenuator network
US3033073A (en) * 1959-06-02 1962-05-08 Rose A Shuttleworth Photoconductive locating device
US3046540A (en) * 1959-06-10 1962-07-24 Ibm Electro-optical translator
US3134907A (en) * 1960-02-08 1964-05-26 Gen Dynamics Corp Character generator
US3093741A (en) * 1960-09-02 1963-06-11 Meyer John Stirling Photovoltaic device for translating signals
US3121795A (en) * 1961-05-05 1964-02-18 Ncr Co Photovoltaic apparatus for measuring displacement of an element

Also Published As

Publication number Publication date
US3196278A (en) 1965-07-20

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