GB805487A - Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control - Google Patents

Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control

Info

Publication number
GB805487A
GB805487A GB1370/56A GB137056A GB805487A GB 805487 A GB805487 A GB 805487A GB 1370/56 A GB1370/56 A GB 1370/56A GB 137056 A GB137056 A GB 137056A GB 805487 A GB805487 A GB 805487A
Authority
GB
United Kingdom
Prior art keywords
tape
magnetic
switches
embossings
operated
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
GB1370/56A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1370/56A priority Critical patent/GB805487A/en
Priority to GB27944/58A priority patent/GB840148A/en
Publication of GB805487A publication Critical patent/GB805487A/en
Priority to GB1081860A priority patent/GB870110A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/005—Programmed access in sequence to indexed parts of tracks of operating tapes, by driving or guiding the tape
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/22—Stopping means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G11B27/26—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording by photoelectric detection, e.g. of sprocket holes

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

805,487. Magnetic record apparatus. DAVIES, T. L. April 8, 1957 [Jan. 16, 1956], No. 1370/56. Class 40 (2). Means for selectively stopping a magnetic record tape apparatus at a desired place on the tape comprises the use of pairs of differently spaced embossings M on the tape which cause a stop switch and brakes to be operated when a particular spacing of the embossings is detected by a pair of magnetic selector switches J and K set in spaced relationship according to the place at which it is desired to stop the tape. The said magnetic switches J (fixed) and K (movable) comprise electromagnets having two-pronged armatures, Fig. 4, the main prong of which forms part of a narrow gate through which the tape passes, and the other one contact of a switch in series with the coil of its associated electromagnet. The circuits of the two electromagnets are also connected in series with one another and with a current source, so that when both are operated simultaneously by appropriately spaced embossings M, they are locked on until broken by the operation of a solenoid (not shown) in the external circuit, whereby the main stop switch is also operated. Fig. 5 illustrates the indicator arrangement which facilitates the setting of the movable selector switch K to one of 10 alternative stopping positions. When set to zero, the levers D and E, representing the other halves of the tape gates, engage one another to open the gates, as shown in Fig. 2, and facilitate placing and removal of the tape without accidentally operating the switches.
GB1370/56A 1956-01-16 1956-01-16 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control Expired GB805487A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1370/56A GB805487A (en) 1956-01-16 1956-01-16 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control
GB27944/58A GB840148A (en) 1956-01-16 1958-09-01 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control
GB1081860A GB870110A (en) 1956-01-16 1960-03-28 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1370/56A GB805487A (en) 1956-01-16 1956-01-16 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control
GB27944/58A GB840148A (en) 1956-01-16 1958-09-01 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control

Publications (1)

Publication Number Publication Date
GB805487A true GB805487A (en) 1958-12-10

Family

ID=62529345

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1370/56A Expired GB805487A (en) 1956-01-16 1956-01-16 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control
GB27944/58A Expired GB840148A (en) 1956-01-16 1958-09-01 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB27944/58A Expired GB840148A (en) 1956-01-16 1958-09-01 Improvements to magnetic tape sound recording and reproducing apparatus relating to a selective stop control

Country Status (1)

Country Link
GB (2) GB805487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354306A (en) * 1964-04-28 1967-11-21 Servo Corp Of America Hot-box detector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861619A (en) * 1972-11-02 1975-01-21 Minnesota Mining & Mfg Magnetic tape position sensing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354306A (en) * 1964-04-28 1967-11-21 Servo Corp Of America Hot-box detector

Also Published As

Publication number Publication date
GB840148A (en) 1960-07-06

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