US3472143A - Apparatus for processing photographic material - Google Patents
Apparatus for processing photographic material Download PDFInfo
- Publication number
- US3472143A US3472143A US608909A US3472143DA US3472143A US 3472143 A US3472143 A US 3472143A US 608909 A US608909 A US 608909A US 3472143D A US3472143D A US 3472143DA US 3472143 A US3472143 A US 3472143A
- Authority
- US
- United States
- Prior art keywords
- film
- infrared
- chemical solution
- tanks
- strip
- 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
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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
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
- G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
- G03D3/135—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed between chains or belts, or with a leading strip
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/02—Details of liquid circulation
- G03D3/06—Liquid supply; Liquid circulation outside tanks
- G03D3/065—Liquid supply; Liquid circulation outside tanks replenishment or recovery apparatus
Definitions
- the automatic replenishing system consists of a plurality of infrared photodetectors arranged transversely across the film Width so that the detectors may sense the Width of the film strip as it passes through the apparatus.
- the Width is then integrated with the length of the film strip to determine the area of the film being processed, and the fluid treating tanks are replenished with chemical solution according to the area of film strip lbeing processed.
- the present invention relates to a machine or apparatus for automatically processing a sensitized film progressively through a series of tanks in which the several steps of the process take place.
- one system of replenishing the fluid treating material used in developing processes is the automatic nitrogen pressurized system which is used to replenish batch type processers. This system is also in limited use for continuous processing machines.
- Another type of system in use at the present time is the pump system which is used for either a batch or a ICC continuous type film developing process.
- the pumps are used to deliver the chemicals to the processing machines.
- al1 of the above mentioned systems they must be manually set in order to take into account the width and sometimes the length of the film that is being processed.
- the amount of chemical that is added to the photographic process to replenish the solution that is being used up has to be metered in exacting proportions to the area of lm that is passing through the film developing apparatus. lf the amount of lm being developed is changed for any reason, the amount of chemical solution being fed or supplied to the system will not automatically change, so that the film may be underdeveloped or overdeveloped.
- a system in which the amount of chemical solution required to properly develop the film is automatically supplied to the processing tanks in accordance with the amount of the film passing through the developing apparatus.
- This system may be used with any of the above mentioned systems now in use.
- FIGURE 1 is a perspective View illustrating, more or less diagrammatically, the replenishing device of the present invention.
- FIGURE 2 is an enlarged fragmentary detailed view of the infrared means disposed adjacent the inlet end of the developing apparatus.
- the reference numeral 10 generally designates the developing apparatus of the present invention.
- This apparatus may consist of an outer elongated rectangular housing or casing 12 in which are disposed a plurality of tanks or compartments 14, 16, 18 and 20.
- These tanks are treating tanks and may consist of any predetermined number of treating tanks, for example the tank 14 may be a developer tank and contain a chemical solution for developing the film.
- the tank 16 may be a stop tank While the tank 18 may be a fixer tank and the tank 20 may be a wash water tank.
- the device is similar to that described and shown in my application Ser. No. 471,052 filed July 12, 1965, now U.S. Patent No. 3,375,593, in which a continuous strip of film is passed through the various tanks so as to provide a continuous processing system for a quick and simple and economical development of the film.
- all of the tanks are disposed in the upper portion of the housing 12 and are in longitudinal alignment with each other so that a continuous strip of film 22 to be developed passes through an inlet opening in the front end 24 of the housing and passes progressively or successively through the various tanks 14, 16, 18, 20 and any other tanks desired, and is discharged from the rear of the housing 12. It is, of course, realized that all of the various tanks have their inlet and discharge openings in alignment therein, as shown and described in my above mentioned application, and the device is provided with the proper drive means so as to thread the film through the device at a predetermined rate.
- Each tank is provided with a chemical solution tank, with a tank 26 being illustrated in FIGURE l for supplying the proper chemical solution to the developer tank 14 through the conduits or tubing 3f? land 32 which is supplied with a motor driven pump 28.
- FIGURE 1 further illustrates a chemical solution replenishment tank 34 in communication with the stop tank 16 through the lines 36 and 3S in which is provided a motor driven pump 4t).
- a chemical solution replenishment tank 34 in communication with the stop tank 16 through the lines 36 and 3S in which is provided a motor driven pump 4t).
- each tank used in the developing apparatus is provided with its own individual chemical solution supply or replenishment tank.
- the developing apparatus of the present invention is provided with a bank of infrared means 42 adjacent the front wall 24 and the inlet end of the housing 12.
- 'Ihe infrared means 42 extends laterally across the path of travel of the continuous strip of film 22, as best seen in FIGURE 2.
- the infrared means consists of a housing 44 in which is disposed a plurality of small low voltage lamps 46 each with an infrared filter 48 placed -in front of it, or, as shown in FIGURE 2, below it, but ⁇ above the upper surface of the film 22.
- Preferably nine lamps and infrared filters are disposed in spaced relationship laterally or transversely of the path of travel of the film 22. They are spaced evenly across the width of the entrance chute to the film developing apparatus so as to impinge upon a segment or portion of the film passing therebelow.
- the housing 50 Disposed below the infrared means 42 and below the undersurface of the continuous strip of film 22 is another housing 50 with a plurality of infrared sensitive photoresistors 52 each in alignment with one of the lamps 46 and the infrared filters 48.
- the provision of the lamps 46 and the filters 48 results in beams of infrared light being directed across the film path of travel at the entrance to the machine which beams of light impinge on the respective aligned infrared sensitive photoresistors.
- the change in resistance for the photoresistors 52 which is caused by the strip of film interrupting the infrared beam paths will actuate an electronic package or device S4 for an infrared system which is operatively connected to the pumps of the system, such as 28 and 40, to control the flow rate of these replenishment pumps in order to increase or decrease the supply of chemical solution to the treating tanks, in accordance with the area or amount of the film that is being passed through the device.
- the low voltage lamps, the infrared filters and the electronic device 54 are all well known commercially available devices and are operatively connected to the pumps by any Well known circuit means not forming a part of the present invention.
- This infrared light is of such a wave length that it does not affect standard photographic emulsions.
- the length of the film is measured by the interruption of one or more of these infrared light beams.
- the area of the film can be integrated by multiplying the length function by the total number of discrete Width functions, as measured by the infrared beams.
- the width of the film strip being processed is measured by the number of infrared detectors which are covered by the film strip.
- the length of each film strip is determined by the amount of time the infrared detectors are covered. If desired, other conventional apparatus for measuring the length of a strip passing thereby could be utilized. However, the infrared detectors inherently provide an efficient means of measuring the length of the film strip and lare preferred for that purpose.
- the system will automatically adjust for any other width and length of film placed therein. If the speed of the processor is changed, a separate speed variable is automatically fed into the system to make this adjustment and keep the flow rate at the proper level.
- the present invention provides a simple and inexpensive apparatus for supplying the correct amount of chemical solution to the various tanks in a film developing apparatus in accordance with the area of the film being developed.
- the present invention further provides a film developing apparatus and system in which the rate of feed of the film through the device, if changed, will automatically vary the amount of chemical solution being supplied to the various tanks in the device so that the proper amount of treating fiuid is supplied automatically without causing any underdevelopment or over-development of the film.
- the amount of the developer which must be added to compensate for the film being processed is actually a direct function of the amount of silver halides reduced to metallic silver. This is, of course, visually apparent on the photograph by looking at the dark areas vs. the light areas. Therefore, when the photosensitive devices are placed at the exit of the processor, the actual area of the film which was developed is measured. This is the most accurate way one could design a replenishment system. The device then continuously varies the amount of replenisher required, exactly in proportion to the amount of film emulsion which was developed. This relationship applies to the developing bath only. When using the device at the end of the processor, the stop bath and fixing bath replenishers are run at a fairly constant rate and only the developer replenishei flow rate is varied according to the amount of developed image.
- Apparatus for treating a strip of photosensitive film material passing therethrough comprising:
- each radiation sensing means includes emitter means to emit infrared radiation disposed on one side of the film material and an infrared sensor disposed on the other si-de ⁇ of the lm material.
- a method of replenishing chemical solution in a iilm processing applicator means in response to the area of a film strip passingthrough the applicator means comprising the steps of:
- said measuring consisting of the step of projecting a plurality of spaced radiation beams transversely to the path of travel of the iilm through the applicator means;
- said measuring further consisting of the step of detecting the amount of radiation projected past the peripheral edge of the lm;
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60890967A | 1967-01-12 | 1967-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3472143A true US3472143A (en) | 1969-10-14 |
Family
ID=24438588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US608909A Expired - Lifetime US3472143A (en) | 1967-01-12 | 1967-01-12 | Apparatus for processing photographic material |
Country Status (1)
Country | Link |
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US (1) | US3472143A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3554109A (en) * | 1969-09-17 | 1971-01-12 | Logetronics Inc | Image monitoring and control system |
US3760705A (en) * | 1971-08-03 | 1973-09-25 | Filmamatic Corp Form Kimball | Film processing apparatus |
US3785269A (en) * | 1972-10-31 | 1974-01-15 | Logetronics Inc | Automatic film processor having switchable transport path |
US3905698A (en) * | 1973-08-25 | 1975-09-16 | Hoechst Ag | Photoprinting apparatus in which developer is replenished in proportion to the treated surface area |
US3956764A (en) * | 1973-11-08 | 1976-05-11 | Agfa-Gevaert, A.G. | Device for detecting the presence of photographic film as the film travels along a predetermined path through a film processing apparatus |
US3984856A (en) * | 1972-07-29 | 1976-10-05 | Hoechst Aktiengesellschaft | Process and apparatus for developing diazotype material |
US4021832A (en) * | 1974-08-05 | 1977-05-03 | Kreonite, Inc. | Photocell control device for a photographic film processor |
US4025344A (en) * | 1972-08-31 | 1977-05-24 | E. I. Du Pont De Nemours And Company | Lithographic developer replenishment process |
US4057817A (en) * | 1975-11-07 | 1977-11-08 | Lok-A-Bin Systems, Inc. | Film processor standby control system |
US4101214A (en) * | 1975-01-13 | 1978-07-18 | Minolta Camera Kabushiki Kaisha | Toner dispensing device with electrical integrating circuit |
US4134663A (en) * | 1975-12-19 | 1979-01-16 | Agfa-Gevaert Ag | Method and apparatus for feeding replenishment chemicals in film processors |
US4293211A (en) * | 1980-07-14 | 1981-10-06 | Pako Corporation | Automatic replenisher control system |
US4314753A (en) * | 1980-07-14 | 1982-02-09 | Pako Corporation | Automatic inverse fix replenisher control |
DE3127824A1 (en) * | 1980-07-14 | 1982-06-16 | Pako Corp., 55440 Minneapolis, Minn. | AUTOMATIC ANTIOXIDATION REFILL CONTROL SYSTEM WITH TWO ADDITIONAL RATES |
US4422152A (en) * | 1981-11-19 | 1983-12-20 | Pako Corporation | Automatic fixed-quantity/variable-time anti-oxidation replenisher control system |
US4466072A (en) * | 1981-11-16 | 1984-08-14 | Pako Corporation | Automatic fixed-quantity/fixed-time anti-oxidation replenisher control system |
US4506969A (en) * | 1984-04-02 | 1985-03-26 | Pako Corporation | Film-width and transmittance scanner system |
US4556305A (en) * | 1981-10-29 | 1985-12-03 | Agfa-Gevaert A.G. | Arrangement for and method of regenerating processing baths for photosensitive materials |
US4603956A (en) * | 1984-11-16 | 1986-08-05 | Pako Corporation | Film-width and transmittance scanner system |
US4978858A (en) * | 1989-06-09 | 1990-12-18 | Eastman Kodak Company | Optical web detection and measurement system especially adapted for controlling replenishment of x-ray film processing chemicals |
EP0535381A2 (en) * | 1991-09-30 | 1993-04-07 | Eastman Kodak Company | Method and apparatus for adjusting the volume of replenishment fluid provided to a chamber of a film processor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1895760A (en) * | 1931-01-28 | 1933-01-31 | Bell Telephone Labor Inc | Fluid-treating apparatus |
US3368472A (en) * | 1963-12-20 | 1968-02-13 | Gevaert Photo Prod Nv | Device for maintaining a photographic processing solution at a predetermined composition |
-
1967
- 1967-01-12 US US608909A patent/US3472143A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1895760A (en) * | 1931-01-28 | 1933-01-31 | Bell Telephone Labor Inc | Fluid-treating apparatus |
US3368472A (en) * | 1963-12-20 | 1968-02-13 | Gevaert Photo Prod Nv | Device for maintaining a photographic processing solution at a predetermined composition |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3554109A (en) * | 1969-09-17 | 1971-01-12 | Logetronics Inc | Image monitoring and control system |
US3760705A (en) * | 1971-08-03 | 1973-09-25 | Filmamatic Corp Form Kimball | Film processing apparatus |
US3984856A (en) * | 1972-07-29 | 1976-10-05 | Hoechst Aktiengesellschaft | Process and apparatus for developing diazotype material |
US4025344A (en) * | 1972-08-31 | 1977-05-24 | E. I. Du Pont De Nemours And Company | Lithographic developer replenishment process |
US3785269A (en) * | 1972-10-31 | 1974-01-15 | Logetronics Inc | Automatic film processor having switchable transport path |
US3905698A (en) * | 1973-08-25 | 1975-09-16 | Hoechst Ag | Photoprinting apparatus in which developer is replenished in proportion to the treated surface area |
US3956764A (en) * | 1973-11-08 | 1976-05-11 | Agfa-Gevaert, A.G. | Device for detecting the presence of photographic film as the film travels along a predetermined path through a film processing apparatus |
US4021832A (en) * | 1974-08-05 | 1977-05-03 | Kreonite, Inc. | Photocell control device for a photographic film processor |
US4101214A (en) * | 1975-01-13 | 1978-07-18 | Minolta Camera Kabushiki Kaisha | Toner dispensing device with electrical integrating circuit |
US4057817A (en) * | 1975-11-07 | 1977-11-08 | Lok-A-Bin Systems, Inc. | Film processor standby control system |
US4134663A (en) * | 1975-12-19 | 1979-01-16 | Agfa-Gevaert Ag | Method and apparatus for feeding replenishment chemicals in film processors |
US4293211A (en) * | 1980-07-14 | 1981-10-06 | Pako Corporation | Automatic replenisher control system |
US4314753A (en) * | 1980-07-14 | 1982-02-09 | Pako Corporation | Automatic inverse fix replenisher control |
DE3127824A1 (en) * | 1980-07-14 | 1982-06-16 | Pako Corp., 55440 Minneapolis, Minn. | AUTOMATIC ANTIOXIDATION REFILL CONTROL SYSTEM WITH TWO ADDITIONAL RATES |
US4556305A (en) * | 1981-10-29 | 1985-12-03 | Agfa-Gevaert A.G. | Arrangement for and method of regenerating processing baths for photosensitive materials |
US4466072A (en) * | 1981-11-16 | 1984-08-14 | Pako Corporation | Automatic fixed-quantity/fixed-time anti-oxidation replenisher control system |
US4422152A (en) * | 1981-11-19 | 1983-12-20 | Pako Corporation | Automatic fixed-quantity/variable-time anti-oxidation replenisher control system |
US4506969A (en) * | 1984-04-02 | 1985-03-26 | Pako Corporation | Film-width and transmittance scanner system |
US4603956A (en) * | 1984-11-16 | 1986-08-05 | Pako Corporation | Film-width and transmittance scanner system |
US4978858A (en) * | 1989-06-09 | 1990-12-18 | Eastman Kodak Company | Optical web detection and measurement system especially adapted for controlling replenishment of x-ray film processing chemicals |
EP0535381A2 (en) * | 1991-09-30 | 1993-04-07 | Eastman Kodak Company | Method and apparatus for adjusting the volume of replenishment fluid provided to a chamber of a film processor |
EP0535381A3 (en) * | 1991-09-30 | 1993-07-07 | Eastman Kodak Company | Method and apparatus for adjusting the volume of replenishment fluid provided to a chamber of a film processor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ITEK GRAPHIX CORP., A CORP OF DELAWARE,MASSACHUSET Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ITEK CORPORATION, A CORP OF DE.;REEL/FRAME:004520/0607 Effective date: 19860205 Owner name: ITEK GRAPHIX CORP., 800 SOUTH STREET, 5TH FLOOR, W Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ITEK CORPORATION, A CORP OF DE.;REEL/FRAME:004520/0607 Effective date: 19860205 |
|
AS | Assignment |
Owner name: MANUFACTURERS HANOVER COMMERCIAL CORPORATION, NEW Free format text: SECURITY INTEREST;ASSIGNOR:ITEK GRAPHIX CORP.;REEL/FRAME:004552/0917 Effective date: 19860205 Owner name: MANUFACTURERS HANOVER COMMERCIAL CORPORATION, A CO Free format text: SECURITY INTEREST;ASSIGNOR:ITEK GRAPHIX CORP.;REEL/FRAME:004552/0917 Effective date: 19860205 |