GB1292752A - Photographic processing apparatus - Google Patents

Photographic processing apparatus

Info

Publication number
GB1292752A
GB1292752A GB3327/70A GB332770A GB1292752A GB 1292752 A GB1292752 A GB 1292752A GB 3327/70 A GB3327/70 A GB 3327/70A GB 332770 A GB332770 A GB 332770A GB 1292752 A GB1292752 A GB 1292752A
Authority
GB
United Kingdom
Prior art keywords
drum
zone
web
radiation
conducting
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
GB3327/70A
Inventor
George Klaus Czarnikow
William Samuel Owen
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 GB1292752A publication Critical patent/GB1292752A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/002—Heat development apparatus, e.g. Kalvar
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Abstract

1292752 Photographic processing apparatus; automatic control of temperature EASTMAN KODAK CO 23 Jan 1970 [27 Jan 1969] 3327/70 Headings G2A and G3R A latent image on a web 25 is developed by apparatus which comprises means 44, 46, 48 for advancing the web along a predetermined path and a single source of radiation 50, the web being heated in a first zone and exposed to actinic radiation through an aperture 66 in a second zone spaced downstream from the first zone. The web is cooled immediately prior to the second zone by contact with a heat sink 87. The path is formed between a drum 28 and a surrounding part-cylindrical member 26, the facing surfaces of which are coated with a low co-efficient of friction material. A resilient felt backing 58 is provided. The radiation source 50 is disposed axially within the drum, which may be internally coated at 60 with radiation absorbing material. The temperature of the heated drum is controlled by a thermistor 62 positioned on an inner surface of the drum so that if the temperature rises above a pre-set value transistor 98 is rendered fully conducting, transistor 104 is rendered less conducting and the potential across capacitor 94 is reduced to below that required to maintain diac 88 conducting. Triac 86 is then switched off to de-energize solenoid coil 82 and to close armature switch 84. A fan motor M. is thus energized to blow cooling air inside the drum.
GB3327/70A 1969-01-27 1970-01-23 Photographic processing apparatus Expired GB1292752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79419969A 1969-01-27 1969-01-27

Publications (1)

Publication Number Publication Date
GB1292752A true GB1292752A (en) 1972-10-11

Family

ID=25161990

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3327/70A Expired GB1292752A (en) 1969-01-27 1970-01-23 Photographic processing apparatus

Country Status (5)

Country Link
US (1) US3628440A (en)
JP (1) JPS499375B1 (en)
DE (2) DE2065154A1 (en)
FR (1) FR2029454A1 (en)
GB (1) GB1292752A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115504A1 (en) * 1970-04-01 1971-10-21 Mihalik N Electrostatic copier
US3819259A (en) * 1972-05-05 1974-06-25 Xerox Corp Light attenuator
JPS49118424A (en) * 1973-03-12 1974-11-12
JPS5136952A (en) * 1974-09-05 1976-03-29 Ricoh Kk
US3983688A (en) * 1975-06-19 1976-10-05 The Raymond Lee Organization, Inc. World clock device
US4001546A (en) * 1975-07-14 1977-01-04 Eikonix Corporation Film thermal processing
DE2852250C2 (en) * 1978-12-02 1982-08-26 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Heat development station
JPS5829312U (en) * 1981-08-21 1983-02-25 出井　惣一 wedding umbrella
US5699101A (en) * 1995-10-06 1997-12-16 Minnesota Mining And Manufacturing Company Article for cooling a sheet of thermally-processed material
US5849388A (en) * 1996-02-02 1998-12-15 Imation Corp. Article, apparatus and method for cooling a thermally processed material
US6089703A (en) * 1998-10-27 2000-07-18 Lexmark International, Inc. Ink jet printer and method of printing using same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921513A (en) * 1957-08-23 1960-01-19 Gen Aniline & Film Corp Diazotype printing and developing apparatus
US3183819A (en) * 1962-04-30 1965-05-18 Eastman Kodak Co Processing mechanism
US3224355A (en) * 1962-07-31 1965-12-21 Dietzgen Co Eugene Apparatus for making prints
US3243579A (en) * 1963-08-01 1966-03-29 Frederick Post Co Thermal developer
NL6501481A (en) * 1964-02-15 1965-08-16
US3311040A (en) * 1964-04-08 1967-03-28 Minolta Camera Kk Heat-developing apparatus for positive picture copiers
US3371915A (en) * 1965-08-13 1968-03-05 Fuji Photo Film Co Ltd Treatment machine for heat treatment of sensitive material

Also Published As

Publication number Publication date
FR2029454A1 (en) 1970-10-23
DE2065154A1 (en) 1972-11-02
JPS499375B1 (en) 1974-03-04
US3628440A (en) 1971-12-21
DE2003389A1 (en) 1970-08-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees