GB1272671A - Coin acceptor having resistivity and permeability detector - Google Patents
Coin acceptor having resistivity and permeability detectorInfo
- Publication number
- GB1272671A GB1272671A GB20652/69A GB2065269A GB1272671A GB 1272671 A GB1272671 A GB 1272671A GB 20652/69 A GB20652/69 A GB 20652/69A GB 2065269 A GB2065269 A GB 2065269A GB 1272671 A GB1272671 A GB 1272671A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coin
- transistor
- bridge
- condition
- coils
- 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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/08—Testing the magnetic or electric properties
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Coins (AREA)
Abstract
1,272,671. Bridge-network coin testers. VENDO CO. 23 April, 1969 [8 Jan., 1969], No. 20652/69. Heading G4V. A coin tester comprises a bridge network which assumes a validity-indicating condition when a valid coin passes through a test station and delay means having a predetermined signal output condition assumed after a time period following sensing of a coin passing through the test station, the arrangement being such that a coin is accepted if the network is in its validityindicating condition when the delay means assumes its predetermined output condition. In the embodiment shown an elliptical coil 16 is situated either side of passageway 14, Fig. 2, each with its major axis along the length of the passageway. A light source 24 and a light detector (26), Fig. 3 (not shown), are vertically adjustable in slots 22, their positions relative to coils 16 being adjusted in dependence of the diameter of the coins to be tested so that the test may be completed while a respective coin is approximately centrally positioned relative to the coils; typically a test period is 4 m sec. If a coin is acceptable an accept electromagnet 36, Fig. 1 and Fig. 4 (not shown), is actuated to withdraw deflector 30, Fig. 2, and allow the coin to enter accept path 34, otherwise coins follow reject path 32. Coils 16 form one arm of a bridge circuit 42, Fig. 1, aligned to be in a balanced condition at terminals 62, 64 when an acceptable coin passes between the coils. As shown. a further bridge is formed by the provision of arms 120, 122 to allow, for example, testing of coins of the same denomination but different composition. In this case a balanced condition is obtained at outputs 62, 124. When light from soucre 24 is obturated, detector 26 becomes non-conductive as consequently does a transistor 92, the latter being held in this state for the test period, e.g. 4 m sec., by capacitor 94 and resistor 90. With change of state of transistor 92 a positive pulse is delivered to the gate of silicon controlled rectifier 84. The period of gating of SCR 84 depends on the cessation or otherwise of a pulse train (146), Fig. 6 (not shown), from differential amplifier 70. Cessation occurs when bridge 42 is balanced, i.e. on valid coin insertion, and in consequence a transistor 80 remains in continuous conduction as does SCR 84. When transistor 92 becomes condutive at the end of the test period, an amplifier 100 is turned off and an accept transistor 114 is placed in conduction. If at this instance SCR 84 is also in conduction, i.e. the coin is valid, accept electromagnet 36 is actuated. The apparatus may comprise a plurality of channels 14, Fig. 2, each for a different denomination and each comprising units such as 134, 136, Fig. 1, comprising the same network as shown in Fig. 1, but sharing a common oscillator 54.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78987269A | 1969-01-08 | 1969-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1272671A true GB1272671A (en) | 1972-05-03 |
Family
ID=25148927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20652/69A Expired GB1272671A (en) | 1969-01-08 | 1969-04-23 | Coin acceptor having resistivity and permeability detector |
Country Status (2)
Country | Link |
---|---|
US (1) | US3576244A (en) |
GB (1) | GB1272671A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140187A (en) * | 1983-05-13 | 1984-11-21 | Knight Technology Ltd | Apparatus for testing and routing coins |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2029751C3 (en) * | 1970-06-16 | 1974-11-07 | Adolf 8150 Roggersdorf Hinterstocker | Electronic coin validator with a single checking device |
GB1397083A (en) * | 1971-05-24 | 1975-06-11 | Mars Inc | Coin selector utilizing inductive sensors |
GB1461404A (en) * | 1973-05-18 | 1977-01-13 | Mars Inc | Coin selection method and apparatus |
JPS5830632B2 (en) * | 1977-06-21 | 1983-06-30 | 富士電機株式会社 | coin sorting device |
GB2045498B (en) * | 1979-03-30 | 1983-03-30 | Mars Inc | Coin testing apparatus |
DE3065456D1 (en) * | 1979-08-08 | 1983-12-08 | Autelca Ag | Coin tester for coins of varying diameters |
US4353453A (en) * | 1980-04-10 | 1982-10-12 | Atn Research & Development Corporation | Valid coin acceptor for coin actuated apparatus |
EP0060392B1 (en) * | 1981-03-06 | 1985-12-18 | Sodeco-Saia Ag | Coin testing apparatus |
FR2538934A1 (en) * | 1982-12-30 | 1984-07-06 | Flonic Sa | Device for checking the authenticity of coins |
US4574936A (en) * | 1983-05-10 | 1986-03-11 | Lance Klinger | Coin accepter/rejector including symmetrical dual feedback oscillator |
US4848556A (en) * | 1985-04-08 | 1989-07-18 | Qonaar Corporation | Low power coin discrimination apparatus |
US4998610A (en) * | 1988-09-19 | 1991-03-12 | Said Adil S | Coin detector and counter |
US4936435A (en) * | 1988-10-11 | 1990-06-26 | Unidynamics Corporation | Coin validating apparatus and method |
US5226520A (en) * | 1991-05-02 | 1993-07-13 | Parker Donald O | Coin detector system |
US5293980A (en) * | 1992-03-05 | 1994-03-15 | Parker Donald O | Coin analyzer sensor configuration and system |
DK0572847T3 (en) * | 1992-06-03 | 1999-05-25 | Ip Tpg Holdco S O R L | Currency Detector |
US5566808A (en) * | 1994-09-09 | 1996-10-22 | Parker Engineering & Manufacturing Co. | Low profile coin analyzer apparatus |
JP2002296240A (en) * | 2001-03-29 | 2002-10-09 | Ricoh Co Ltd | Magnetic permeability detector, image forming device or digital copying machine using the same, toner density detector, and electric conductivity detector |
US8561777B2 (en) * | 2007-10-23 | 2013-10-22 | Mei, Inc. | Coin sensor |
WO2013138152A1 (en) | 2012-03-14 | 2013-09-19 | Mei, Inc. | Coin sensor |
JP6834419B2 (en) * | 2016-11-30 | 2021-02-24 | 富士電機株式会社 | Coin identification device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB455362A (en) * | 1935-01-10 | 1935-07-11 | Gunnar Wahman | Method of and means for testing coins |
-
1969
- 1969-01-08 US US789872A patent/US3576244A/en not_active Expired - Lifetime
- 1969-04-23 GB GB20652/69A patent/GB1272671A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140187A (en) * | 1983-05-13 | 1984-11-21 | Knight Technology Ltd | Apparatus for testing and routing coins |
Also Published As
Publication number | Publication date |
---|---|
US3576244A (en) | 1971-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) |