GB753167A - Magnetic switching device - Google Patents
Magnetic switching deviceInfo
- Publication number
- GB753167A GB753167A GB11979/54A GB1197954A GB753167A GB 753167 A GB753167 A GB 753167A GB 11979/54 A GB11979/54 A GB 11979/54A GB 1197954 A GB1197954 A GB 1197954A GB 753167 A GB753167 A GB 753167A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cores
- control magnet
- input
- magnet
- polepieces
- 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
- 229920006395 saturated elastomer Polymers 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- UFULAYFCSOUIOV-UHFFFAOYSA-N cysteamine Chemical compound NCCS UFULAYFCSOUIOV-UHFFFAOYSA-N 0.000 abstract 1
- 238000013500 data storage Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
- H03K17/81—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/952—Proximity switches using a magnetic detector using inductive coils
- H03K17/9525—Proximity switches using a magnetic detector using inductive coils controlled by an oscillatory signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnets (AREA)
Abstract
753,167. Non - contactmaking relays NATIONAL CASH REGISTER CO. April 26, 1954 [May 18, 1953], No. 11979/54. Class 40 (4). [Also in Groups XIX, XXXVIII and XL (b)] In a magnetic switching device comprising a plurality of saturable cores each magnetically coupling an input and an output coil, an alternating input is transferred to the output of a selected core or cores according to the position of a movable control magnet which establishes an unsaturated condition, the remaining cores being disabled by magnetic saturation. As shown in Figs. 2 and 3, a number of toroidal cores 20, each formed of material having a substantially rectangular hysteresis loop such as ferrite, are radially positioned around a rotatable control magnet which comprises a hollow longitudinally-magnetised cylindrical permanent magnet 28 and circular polepieces 23, 24. A pair of low-reluctance connecting portions 21, 22 extend from diametrically opposite points on each toroid to positions adjacent the polepieces, the input coil 26 being arranged with half its turns on each side of portion 22 while the output coil 27 is similarly arranged about portion 21. The input coils may be energized in series from a common alternating source 30 and the selection of an unsaturated core over which the signal is transferred is determined by the position of a large air gap formed by notches 29 in the polepieces, the other cores being saturated by the control magnet. As each input and output coil is symmetrically disposed on either side of a connecting portion, induced switching transients arising from flux changes are neutralized within the coils. Two or more cores may be desaturated together by arranging the notches to subtend a larger angle or by providing additional notches. Alternatively a plurality of cores 31, 34 having separate input and output coils 32, 33 and 35, 36 respectively, Fig. 1 (part), may utilize common connecting portions 40, 42, adjacent cores being linked magnetically by a further connecting portion 41. The switching device may be utilized to route information read from predetermined sectors I-IV of a magnetic data storage drum 51, Fig. 5, to different output channels, the control magnet 50 being rotated with the drum. The reading head 54 is connected to all the cores over an amplifier 55 and parallel-connected input coils 56, and as the notch 53 in the control magnet subtends the same angle as that over which a signal for a particular channel is recorded on the drum, the reproduced signals are directed in turn to the appropriate output channels. As the control magnet may be rotated at speed it may be balanced by fitting non-magnetic plates 57 adjacent the recesses. In a modified construction of the switching device, the polepieces may be made relatively movable to the cylindrical magnet and independently adjustable with respect to the cores. With this arrangement each polepiece independently desaturates a particular core, according to the position of its notch. In a further modification, Fig. 7, the control magnet 69 is in the form of a notched channel member which is secured to a supporting member 70 and is longitudinally movable relative to the cores. With the control magnet in the position shown all the cores are saturated. An alternative arrangement of the cores and control magnet are shown in Fig. 8, in which each core is normally saturated by an associated permanent magnet 84, desaturation of the selected core being effected by a U-shaped control magnet 83.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US355538A US2740110A (en) | 1953-05-18 | 1953-05-18 | Magnetic switching devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB753167A true GB753167A (en) | 1956-07-18 |
Family
ID=23397798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11979/54A Expired GB753167A (en) | 1953-05-18 | 1954-04-26 | Magnetic switching device |
Country Status (7)
Country | Link |
---|---|
US (1) | US2740110A (en) |
BE (1) | BE528904A (en) |
CH (1) | CH336445A (en) |
DE (1) | DE954072C (en) |
FR (1) | FR1105896A (en) |
GB (1) | GB753167A (en) |
NL (1) | NL98706C (en) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3258726A (en) * | 1966-06-28 | Bendable pole pieces for adjustment op iterative networks | ||
US2966666A (en) * | 1954-04-30 | 1960-12-27 | Electronique & Automatisme Sa | Magnetic record and/or playback heads and control arrangement therefor |
US2858526A (en) * | 1955-09-30 | 1958-10-28 | Burroughs Corp | Magnetic shift register systems |
US3035253A (en) * | 1956-04-09 | 1962-05-15 | George C Devol | Magnetic storage devices |
US2964707A (en) * | 1956-07-23 | 1960-12-13 | Industrial Nucleonics Corp | Signal distribution system |
US2997703A (en) * | 1956-08-03 | 1961-08-22 | Clary Corp | Keyboard controlled circuitry |
US2930034A (en) * | 1956-11-01 | 1960-03-22 | United Aircraft Corp | Contactless switch |
US3027548A (en) * | 1956-12-17 | 1962-03-27 | Bell Telephone Labor Inc | Electromagnetic coupling arrangements |
DE1068752B (en) * | 1956-12-28 | 1959-11-12 | General Electric Company, New York, N. Y. (V. St. A.) | Device for generating a pulse train delayed with respect to a synchronization pulse train |
US2943307A (en) * | 1957-02-19 | 1960-06-28 | Gen Electric | Shaft rotation indicator |
US2933721A (en) * | 1957-05-22 | 1960-04-19 | Ibm | Gated magnetic recording head |
US2915597A (en) * | 1957-07-17 | 1959-12-01 | Ford Motor Co | Magnetic head |
US3110767A (en) * | 1957-09-27 | 1963-11-12 | Kenneth A H Smith | Magnetic teletypewriter transmittal distributor head |
US3056058A (en) * | 1958-03-28 | 1962-09-25 | Printed Motors Inc | Electrical rotating machines |
US3112474A (en) * | 1958-04-25 | 1963-11-26 | Burroughs Corp | Magnetic signal distribution system |
US3488647A (en) * | 1958-06-06 | 1970-01-06 | Ibm | Magnetic core switching circuit |
US2988616A (en) * | 1958-08-04 | 1961-06-13 | Magnavox Co | Switch assembly |
US3060412A (en) * | 1958-08-18 | 1962-10-23 | Automatic Elect Lab | Magnetic saturation control devices |
US3014988A (en) * | 1958-08-18 | 1961-12-26 | Automatic Elect Lab | Magnetic saturation control devices |
US3094626A (en) * | 1958-12-15 | 1963-06-18 | Int Standard Electric Corp | Pulse coding and decoding arrangement |
US3051806A (en) * | 1959-05-18 | 1962-08-28 | Magnavox Co | Switch assembly |
US3382325A (en) * | 1959-08-20 | 1968-05-07 | Iit Res Inst | Magnetic transducer system |
US3042866A (en) * | 1959-08-27 | 1962-07-03 | Avien Inc | Means for sampling a plurality of d.c. signals |
US3060411A (en) * | 1959-10-14 | 1962-10-23 | Bell Telephone Labor Inc | Magnetic memory circuits |
US3113300A (en) * | 1959-11-12 | 1963-12-03 | Electro Mechanical Res Inc | Position sensing apparatus |
US3163855A (en) * | 1959-12-10 | 1964-12-29 | Bell Telephone Labor Inc | Magnetic memory circuits |
US3069665A (en) * | 1959-12-14 | 1962-12-18 | Bell Telephone Labor Inc | Magnetic memory circuits |
US3020416A (en) * | 1960-01-21 | 1962-02-06 | Itt | Signal translating device |
US3512141A (en) * | 1960-06-13 | 1970-05-12 | Burroughs Corp | Manually programmable translator |
US3170150A (en) * | 1960-07-11 | 1965-02-16 | Magnetic Controls Co | Mensuration device with electronic detection for remote reading |
US3129418A (en) * | 1960-08-04 | 1964-04-14 | Teledyne Inc | Electronic keyboard |
US3197747A (en) * | 1960-09-29 | 1965-07-27 | United Aircraft Corp | Apertured ferrite device |
US3140606A (en) * | 1960-09-29 | 1964-07-14 | United Aircraft Corp | Digital rate of flow transducer |
US3192521A (en) * | 1961-03-10 | 1965-06-29 | Electro Mechanical Res Inc | Shaft encoders |
US3207917A (en) * | 1961-03-30 | 1965-09-21 | Danly Mach Specialties Inc | Static rotary limit switch |
CH390590A (en) * | 1961-11-30 | 1965-04-15 | Wahli Ag W | Revolution counter with preselection |
US3230407A (en) * | 1962-08-01 | 1966-01-18 | Anelex Corp | Electromagnetic transducers |
US3361878A (en) * | 1964-03-11 | 1968-01-02 | Ampex | Signal switching system utilizing magnetic switching for rotating head recorders |
US3342070A (en) * | 1964-10-01 | 1967-09-19 | Rockwell Mfg Co | Fluid meter |
US4056747A (en) * | 1976-01-22 | 1977-11-01 | Chrysler Corporation | Speed sensor |
US4853575A (en) * | 1984-08-31 | 1989-08-01 | Black & Decker Inc. | Tachometer generator |
US4835431A (en) * | 1987-12-04 | 1989-05-30 | Lindgren Theodore D | Transformer and synchronous machine with stationary field winding |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2021099A (en) * | 1932-12-02 | 1935-11-12 | Gerald Alan S Fitz | Electric control system |
US2342637A (en) * | 1941-09-10 | 1944-02-29 | Bendix Aviat Corp | Means for reproducing motion |
US2427213A (en) * | 1945-10-12 | 1947-09-09 | Gen Electric | Linear motion transmitter or receiver |
-
0
- BE BE528904D patent/BE528904A/xx unknown
- NL NL98706D patent/NL98706C/xx active
-
1953
- 1953-05-18 US US355538A patent/US2740110A/en not_active Expired - Lifetime
-
1954
- 1954-04-26 GB GB11979/54A patent/GB753167A/en not_active Expired
- 1954-05-14 FR FR1105896D patent/FR1105896A/en not_active Expired
- 1954-05-16 DE DEN9171A patent/DE954072C/en not_active Expired
- 1954-05-17 CH CH336445D patent/CH336445A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH336445A (en) | 1959-02-28 |
US2740110A (en) | 1956-03-27 |
FR1105896A (en) | 1955-12-08 |
NL98706C (en) | |
DE954072C (en) | 1956-12-13 |
BE528904A (en) |
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