US2845230A - Mechanism for wire and tape recording and playing apparatus - Google Patents

Mechanism for wire and tape recording and playing apparatus Download PDF

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Publication number
US2845230A
US2845230A US425402A US42540254A US2845230A US 2845230 A US2845230 A US 2845230A US 425402 A US425402 A US 425402A US 42540254 A US42540254 A US 42540254A US 2845230 A US2845230 A US 2845230A
Authority
US
United States
Prior art keywords
tape
reel
capstan
arm
brake
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 - Lifetime
Application number
US425402A
Other languages
English (en)
Inventor
Robert B Rhoades
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.)
V M Corp
VM Corp
Original Assignee
VM Corp
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 VM Corp filed Critical VM Corp
Priority to US425402A priority Critical patent/US2845230A/en
Priority to FR1122810D priority patent/FR1122810A/fr
Application granted granted Critical
Publication of US2845230A publication Critical patent/US2845230A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/10Manually-operated control; Solenoid-operated control
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof

Definitions

  • means are provided for controlling the starting, running and stopping of the machine by mere manual manipulation.
  • Fig. 1 is a bottom plan view of an embodiment of this invention in running condition; and i Fig. 2 is a similar view with the machine stopped.
  • a sheet metal supporting plate or frame is indicated generally by the reference numeral and may comprise the usual flat material which is sufficiently strong to carry the weight of the machine parts.
  • the underside of the frame 10 with the necessary parts mounted thereon is shown.
  • Certain operating arm 18 is supported on the frame 10 by means of the slot 20 and pin 22 which permits the arm 18 to be longitudinally moved.
  • a capstan 24 is rotatably carried by the plate 10 and is driven at, a constant velocity by any means conventionally used.
  • a pressure roller 26 is 'journalled on the carriage bar 12 for cooperative engagement with the capstan 24 for frictionally compressing a tape 28 against the latter.
  • capstan 24 and pressure roller26 are shown in solid lines for clarity of illustration, but that these parts are actually on the opposite side of the frame 10.
  • the connection between the left end 16 of the carriage bar and the operating arm 18 is such that the carriage bar 12 will be-swung about its pivot 14 as the operating arm 18 is moved longitudinally.
  • a tension spring 30 yieldably urges the arm 18 upwardly and to the left as viewed in the figures.
  • a brake lever 34 Pivotably secured on the opposite end of the operating arm about the pivot pin '32 is a brake lever 34 which carries a brake shoe 36 on its right-handend;
  • the lever 34 is pivoted on the plate 10 by means of a pin 38 such that reciprocal longitudinal movement of the arm. 18 will serve to correspondingly move the brake shoe 36 into and out of brake-applying engagement with a suitable drum 40.
  • This drum 40 may be of any cylindrical design and is rotatably carried by the supporting plate 10.
  • the operating arm 18 when moved downwardly moves the brake shoe 36 into frictional engagement with the drum 40.
  • This drum 40 is in turn connected to a suitable spindle which carries the usual takeup reel indicated by the dashed line circle 42. Starting and stopping of the take-up reel 42 is thereby controlled by operation of the arm 18.
  • the take-up reel 42 is driven by the usual slipping belt or band 44 extending around the drum 40 and a drive wheel 46.
  • a suitable motor is connected to this drive wheel 46.
  • the drive belt 44, the drum 40 and wheel 46 are so arranged that during the periods of brake application (i. e., when the reel 42 is held against rotation) the belt 44 will merely slip around the drum 40.
  • This particular driving construction is conventional in the art.
  • a suitable tension spring 48 is connected between the brake lever 34 and the frame 10 to normally urge the brake 36 away from the drum 40.
  • a post or abutment 50 projects from the plate 10 adjacent the upper end of the arm 18.
  • the right-angle ratchet or cut-out 52 may be engaged with the abutment 50.
  • the spring 30 is set at such an angle that it will normally hold the arm in locking engagement with the abutment 50 such that the brake 36 will be maintained applied.
  • Suitable guide posts 54 and 56 upstand on the frame 10 on opposite sides of the capstan-pressure roller combination 24, 26.
  • a tape supply reel 58 is normally ro tatably carried by plate 10 about a spindle 60 in a conventional manner.
  • the tape 28 is threaded from the supply reel 58 over the guide post 56, between the capstan and pressure roller 24, 26, around the guide posts 54 and onto the take-up reel 42. Rotation of the take-up reel 42 will thereby wind the tape 28 thereon.
  • the usual recording or playing head is mounted on the plate 10 such as to receive the tape 28, but since this Patented July 29, 1958 j 3 bras. s s ne es l a pa t of his n en n. t i n illustrated in the drawings.
  • the apparatus In normal running condition, the apparatus is as shown in Fig. 1.
  • the brake 36 is released and the pressureroller 26 is engaged with the capstan 24.
  • the capstan 24 servesllto drive the tape 28 at a constant linear velocity, and the take-up reel 42 Winds the used tape thereon.
  • the supply reel 58 is thereby rotated by the capstan 24 throughthe intermediary of the tape 28.
  • the operating arm 18 is moved longitudinally upwardly to cause release of the brake 36 and engagement of the pressure roller with the capstan 24.
  • the brake shoe 36 stops the reel 42 just after the release of the pressure roller 26 from the capstan 24. Because of the slight inertia of the supply reel 58 and the momentary driving force of the reel 42, the reel 58 will coast slightly so as to slacken the. tape 28.
  • the slackened tape 28 corresponds to a What is claimed is:
  • a mechanism for use in a tape recorder and player comprising a chassis, a take-up reel and a free running supply reel rotatably mounted on said chassis, a capstan rotatably mounted on said chassis, a carriage arm pivoted on said chassis, a pressure. roller carried by said arm for selective engagement with said capstan, an operating member mounted on said chassis for. reciprocation and having an operating connection with said carriage arm so that reciprocation of said member serves to move alternately said roller into and. out of.
  • a brake shoe movably mounted on said chassis for selective operative engagement with said takeup reel, said brake shoe serving to stop rotation of said take-up reel almost instantaneously, said brake shoe having an operative connection with said operating member, a selectively operable locking device on said chassis operatively engageable with said operating member for locking the latter in brake-applying position, a spring yieldably urging said brake shoe out of operative engagement with said take-up reel, the connections between said operating member, said carriage arm and said brake shoe providing; disengagement of said pressure roller from said capstan prior to brake-applying actuation of said brakeshoewhen said operating member is operated.

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  • Tension Adjustment In Filamentary Materials (AREA)
US425402A 1954-04-26 1954-04-26 Mechanism for wire and tape recording and playing apparatus Expired - Lifetime US2845230A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US425402A US2845230A (en) 1954-04-26 1954-04-26 Mechanism for wire and tape recording and playing apparatus
FR1122810D FR1122810A (fr) 1954-04-26 1955-04-19 Mécanisme de commande pour appareil enregistreur et émetteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425402A US2845230A (en) 1954-04-26 1954-04-26 Mechanism for wire and tape recording and playing apparatus

Publications (1)

Publication Number Publication Date
US2845230A true US2845230A (en) 1958-07-29

Family

ID=23686409

Family Applications (1)

Application Number Title Priority Date Filing Date
US425402A Expired - Lifetime US2845230A (en) 1954-04-26 1954-04-26 Mechanism for wire and tape recording and playing apparatus

Country Status (2)

Country Link
US (1) US2845230A (fr)
FR (1) FR1122810A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027109A (en) * 1958-09-29 1962-03-27 Rca Corp Magnetic recording and reproducing equipment
US3282522A (en) * 1963-07-16 1966-11-01 Philips Corp Quick stop arrangement for a tape recorder/reproducer
US3291408A (en) * 1963-07-10 1966-12-13 United Gas Corp Tape transport mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500903A (en) * 1945-08-02 1950-03-14 Wirecorder Corp Magnetic wire sound recording and reproducing apparatus
US2555643A (en) * 1947-12-11 1951-06-05 Harrison Lawrence Friction gearing for telegraphone mechanism
US2645495A (en) * 1951-03-26 1953-07-14 Krag Steel Products Inc Recording and translating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500903A (en) * 1945-08-02 1950-03-14 Wirecorder Corp Magnetic wire sound recording and reproducing apparatus
US2555643A (en) * 1947-12-11 1951-06-05 Harrison Lawrence Friction gearing for telegraphone mechanism
US2645495A (en) * 1951-03-26 1953-07-14 Krag Steel Products Inc Recording and translating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027109A (en) * 1958-09-29 1962-03-27 Rca Corp Magnetic recording and reproducing equipment
US3291408A (en) * 1963-07-10 1966-12-13 United Gas Corp Tape transport mechanism
US3282522A (en) * 1963-07-16 1966-11-01 Philips Corp Quick stop arrangement for a tape recorder/reproducer

Also Published As

Publication number Publication date
FR1122810A (fr) 1956-09-13

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