GB1391675A - Control apparatus - Google Patents

Control apparatus

Info

Publication number
GB1391675A
GB1391675A GB2275172A GB2275172A GB1391675A GB 1391675 A GB1391675 A GB 1391675A GB 2275172 A GB2275172 A GB 2275172A GB 2275172 A GB2275172 A GB 2275172A GB 1391675 A GB1391675 A GB 1391675A
Authority
GB
United Kingdom
Prior art keywords
photo
duration
spool
motor
notch
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
GB2275172A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1391675A publication Critical patent/GB1391675A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B23D36/0058—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool stopping for a considerable time after each cutting operation
    • B23D36/0066—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool stopping for a considerable time after each cutting operation and taking account of marks, e.g. on the stock
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1391675 Photo-electric apparatus EASTMAN KODAK CO 15 May 1972 [13 May 1971] 22751/72 Heading G I A [Also in Division G3] The time taken to spool successive lengths of photographic film 10 is kept constant by clocking the duration of each spooling operation and adjusting the speed of the spool motor 40 to reduce any error between the clocked duration and a reference duration signal. In Fig. 1, clock pulses are counted at 47 from the time a notch 14 in the film is detected by a photo-cell PC- until a comparator 50 detects that the spool motor 40 has stopped in response to the notch being detected by photo-cell PC-3. The count in 47 is compared with high and low limits, a counter 51 being adjusted up or down if a limit is exceeded, and converted to an analogue signal for use as a reference for a D/A converter 38 supplying the speed determining input to the motor 40.
GB2275172A 1971-05-13 1972-05-15 Control apparatus Expired GB1391675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14305971A 1971-05-13 1971-05-13

Publications (1)

Publication Number Publication Date
GB1391675A true GB1391675A (en) 1975-04-23

Family

ID=22502418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2275172A Expired GB1391675A (en) 1971-05-13 1972-05-15 Control apparatus

Country Status (3)

Country Link
US (1) US3780961A (en)
FR (1) FR2139457A5 (en)
GB (1) GB1391675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446951A (en) * 1992-05-18 1995-09-05 Tsudakoma Kogyo Kabushiki Kaisha Device for measuring and controlling running distance of a yarn

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031733B2 (en) * 1973-07-06 1985-07-24 株式会社片岡機械製作所 Winding tension control device
US4456193A (en) * 1981-09-16 1984-06-26 Bell & Howell Company Web advancement sensing methods and apparatus
DE3913381C2 (en) * 1989-04-24 1994-02-03 Mayer Textilmaschf Method for winding a sheet of thread on a warp beam and tree device
ES2091439T3 (en) * 1992-03-04 1996-11-01 Ciba Geigy Ag PROCEDURE AND DEVICE FOR THE WINDING OF SUBSTRATES CAPABLE OF COILING.
US6438323B1 (en) 2000-06-15 2002-08-20 Eastman Kodak Company Camera film loading with delayed culling of defective cameras
US7908822B2 (en) * 2008-05-15 2011-03-22 Cnh America Llc Computer controlled automatic wrapping material dispensing system for a round baler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446951A (en) * 1992-05-18 1995-09-05 Tsudakoma Kogyo Kabushiki Kaisha Device for measuring and controlling running distance of a yarn

Also Published As

Publication number Publication date
FR2139457A5 (en) 1973-01-05
US3780961A (en) 1973-12-25

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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