GB1213791A - Photographic projection printer - Google Patents

Photographic projection printer

Info

Publication number
GB1213791A
GB1213791A GB53238/66A GB5323866A GB1213791A GB 1213791 A GB1213791 A GB 1213791A GB 53238/66 A GB53238/66 A GB 53238/66A GB 5323866 A GB5323866 A GB 5323866A GB 1213791 A GB1213791 A GB 1213791A
Authority
GB
United Kingdom
Prior art keywords
switch
output
photo
mask
negative
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
GB53238/66A
Inventor
Keith Harold Dixon
Denis Thomas Richard Dighton
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.)
Kodak Ltd
Original Assignee
Kodak 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 Kodak Ltd filed Critical Kodak Ltd
Priority to GB53238/66A priority Critical patent/GB1213791A/en
Priority to US679123A priority patent/US3488119A/en
Priority to DE1597203A priority patent/DE1597203B2/en
Priority to DE19671797492 priority patent/DE1797492C3/en
Priority to DE19671797493 priority patent/DE1797493B2/en
Priority to FR129471A priority patent/FR1545263A/en
Priority to BE707141D priority patent/BE707141A/fr
Publication of GB1213791A publication Critical patent/GB1213791A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/46—Projection printing apparatus, e.g. enlarger, copying camera for automatic sequential copying of different originals, e.g. enlargers, roll film printers
    • G03B27/462—Projection printing apparatus, e.g. enlarger, copying camera for automatic sequential copying of different originals, e.g. enlargers, roll film printers in enlargers, e.g. roll film printers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

1,213,791. Photographic printers. KODAK Ltd. Nov.23, 1967 [Nov.28, 1966], No.53238/66. Heading G2A. A photographic printer has a plurality of interchangeable negative masks (10) Fig.1, (not shown), each mask bearing at least two pins (12) which indicate the negative size carried thereby, and a mask holder having a bank (14) of micro-switches (13) which sense the combination of pins and step a rotary switch (15) to a particular position to adjust the metering of photo-sensitive material to be exposed in the printer, in accordance with the negative size. The masks and holder can also be arranged to control, via the rotary switch (15), the light level output, compensation for negative size and adjustment of mask for the photo-sensitive material. Light level output. In output (a) from the switch (15) controls the energization of lamps for illuminating the negative, interposes neutral density filters in the light beam, if necessary; and controls the interchanging or adjusting of a condenser system of the printer. Negative size compensation. An output (b) provides for the insertion in a photo-electric exposure control circuit of a combination of one or more preset resistors to provide for termination of exposure after a predetermined time. Photo-sensitive material mask. An output (c) from the switch (15) is connected to one of a plurality of contact studs 25, the stud selected being dependent on the negative size. A reversible motor, 15a drives, through mechanism 16-18, 20,21, masking members 19, 22 which are moved towards or away from each other so as to mask different areas of the photo-sensitive material. The motor 15a also drives, via the gear train 16 and a shaft 23, a split ring 24 which rides on and provides electrical connections with the studs 25. The selected stud and another connected to relays 26, are connected, the relays 26 thus controlling the motor 15a. Metering. An output (d) from the switch (15) is contacted to one of a plurality of reed switches 33. A drive shaft 27, carrying a permanent magnet 30, drives a metering roller 29 until the selected switch 33 is operated by the magnet 30 and a circuit completed to a relay 34 which operates a clutch 28 to disengage the drive shaft 27 from the roller 29, and controls a ratchet and pawl to stop the roller slipping back. In another embodiment Fig. 5 (not shown), the output (d) energizes a particular contact of a uniselector (38) which is stepped by pulses from a reed switch (39) operated by four magnets (45). When the particular contact is reached, a relay (47) and pawl and ratchet mechanism are operated as before to stop the metering roller (46)
GB53238/66A 1966-11-28 1966-11-28 Photographic projection printer Expired GB1213791A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB53238/66A GB1213791A (en) 1966-11-28 1966-11-28 Photographic projection printer
US679123A US3488119A (en) 1966-11-28 1967-10-30 Photographic printer operations responsive to a negative mask
DE1597203A DE1597203B2 (en) 1966-11-28 1967-11-24 Photographic copier with a motor-driven adjustment device for adjusting a mask for the copy paper
DE19671797492 DE1797492C3 (en) 1966-11-28 1967-11-24 Control device for a photographic copier
DE19671797493 DE1797493B2 (en) 1966-11-28 1967-11-24 PHOTOGRAPHIC COPY DEVICE
FR129471A FR1545263A (en) 1966-11-28 1967-11-24 New photographic printer for shots of various formats
BE707141D BE707141A (en) 1966-11-28 1967-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53238/66A GB1213791A (en) 1966-11-28 1966-11-28 Photographic projection printer

Publications (1)

Publication Number Publication Date
GB1213791A true GB1213791A (en) 1970-11-25

Family

ID=10467095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53238/66A Expired GB1213791A (en) 1966-11-28 1966-11-28 Photographic projection printer

Country Status (3)

Country Link
US (1) US3488119A (en)
DE (2) DE1597203B2 (en)
GB (1) GB1213791A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689149A (en) * 1970-11-12 1972-09-05 Drewry Photocolor Corp Photographic printing apparatus having variable length print paper
DE2659449C3 (en) * 1976-12-30 1980-07-10 Agfa-Gevaert Ag, 5090 Leverkusen Master stage in a photographic copier with interchangeable format masks
US4302101A (en) * 1977-03-11 1981-11-24 Pako Corporation Paper feed system for photographic printer
DE2833423A1 (en) * 1978-07-29 1980-02-14 Agfa Gevaert Ag PHOTOGRAPHIC COPIER WITH INTERCHANGEABLE FORMAT MASKS
US4202624A (en) * 1978-09-15 1980-05-13 Kreonite Inc. Masking device for cropping photographs viewed on a view screen of a photographic printer
GB2092762B (en) * 1980-12-22 1985-06-12 Durst Uk Ltd Improvements in and relating to photographic exposure masks
GB2122761B (en) * 1982-06-11 1986-02-05 Durst Improvements in and relating to photographic exposure masks
JPS627036A (en) * 1985-07-03 1987-01-14 Fuji Photo Film Co Ltd Photographing mask for microcamera
US4754334A (en) * 1987-01-08 1988-06-28 Management Graphics, Inc. Image recorder having automatic alignment method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH406846A (en) * 1963-03-13 1966-01-31 Gretag Ag Photographic copier for at least two different negative and positive formats
US3421817A (en) * 1965-04-12 1969-01-14 Eastman Kodak Co Projection printer

Also Published As

Publication number Publication date
DE1597203A1 (en) 1970-05-14
DE1797492A1 (en) 1970-07-09
DE1597203B2 (en) 1975-07-24
DE1797493A1 (en) 1970-07-09
DE1797492B2 (en) 1976-01-15
DE1797493B2 (en) 1976-01-22
US3488119A (en) 1970-01-06

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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