GB882981A - Improvements in or relating to devices for indicating the quantity of tape material wound on a reel - Google Patents

Improvements in or relating to devices for indicating the quantity of tape material wound on a reel

Info

Publication number
GB882981A
GB882981A GB3916/58A GB391658A GB882981A GB 882981 A GB882981 A GB 882981A GB 3916/58 A GB3916/58 A GB 3916/58A GB 391658 A GB391658 A GB 391658A GB 882981 A GB882981 A GB 882981A
Authority
GB
United Kingdom
Prior art keywords
spool
reel
relating
indicating
devices
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
GB3916/58A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB882981A publication Critical patent/GB882981A/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms
    • 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
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/34—Driving record carriers by members acting directly or indirectly thereon through non-slip drive means, e.g. sprocket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/416—Array arrangement, i.e. row of emitters or detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

882,981. Metering record tapes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 6, 1958, [Feb. 9 1957], No. 3916/58. Class 40 (2). A light beam, directed from a lamp 1 by a cylindrical lens 13, fills the space between the cheeks of a record tape take-up spool 2 over a cylindrical sector defined by the core and rim radii of the spool. An ellipsoidal mirror 11 forms an image of the lamp at a point 12 above the mirror. A translucent scale (Figs. 1, 3, not shown) intercepts the beam and indicates by the edge 14 of the shadow cast, the amount of tape 3 built up on the spool.
GB3916/58A 1957-02-09 1958-02-06 Improvements in or relating to devices for indicating the quantity of tape material wound on a reel Expired GB882981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL882981X 1957-02-09

Publications (1)

Publication Number Publication Date
GB882981A true GB882981A (en) 1961-11-22

Family

ID=19853597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3916/58A Expired GB882981A (en) 1957-02-09 1958-02-06 Improvements in or relating to devices for indicating the quantity of tape material wound on a reel

Country Status (4)

Country Link
DE (1) DE1040261B (en)
FR (1) FR1191204A (en)
GB (1) GB882981A (en)
NL (1) NL100843C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199203A (en) * 1964-02-11 1965-08-10 Hubert D Yollin Tape position marker
US3353764A (en) * 1966-05-25 1967-11-21 Gen Electric Low tape sensing apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249758A (en) * 1963-04-29 1966-05-03 Sylvania Electric Prod Electro-optical tape sensor
US3557360A (en) * 1968-05-31 1971-01-19 Bell & Howell Co Apparatus for illuminating the tape reels and spindle splines of tape cassettes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199203A (en) * 1964-02-11 1965-08-10 Hubert D Yollin Tape position marker
US3353764A (en) * 1966-05-25 1967-11-21 Gen Electric Low tape sensing apparatus

Also Published As

Publication number Publication date
DE1040261B (en) 1958-10-02
NL100843C (en)
FR1191204A (en) 1959-10-19

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