EP0180545B1 - Appareillage pour le développement d'un film exposé enroulé sur une bobine - Google Patents

Appareillage pour le développement d'un film exposé enroulé sur une bobine Download PDF

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Publication number
EP0180545B1
EP0180545B1 EP85810483A EP85810483A EP0180545B1 EP 0180545 B1 EP0180545 B1 EP 0180545B1 EP 85810483 A EP85810483 A EP 85810483A EP 85810483 A EP85810483 A EP 85810483A EP 0180545 B1 EP0180545 B1 EP 0180545B1
Authority
EP
European Patent Office
Prior art keywords
film
container
spool
cassette
liquid
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
EP85810483A
Other languages
German (de)
English (en)
Other versions
EP0180545A1 (fr
Inventor
Brian Frank Moss
Richard John Brent
Ian Brent Pilkington
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of EP0180545A1 publication Critical patent/EP0180545A1/fr
Application granted granted Critical
Publication of EP0180545B1 publication Critical patent/EP0180545B1/fr
Expired legal-status Critical Current

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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
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/02—Containers; Holding-devices
    • G03D13/04—Trays; Dishes; Tanks ; Drums
    • G03D13/06—Light-tight tanks with provision for loading in daylight

Definitions

  • the invention relates to an apparatus for treating exposed, photographic film wound on a spool according to the preamble of patent claim 1.
  • the invention is intended to remedy this deficiency and to create a powerful device in which the film can be processed evenly directly on the spool.
  • the processing device described in EP-A-147 366 with the same priority date has in the actual treatment room of the reels ejected from the cassettes essentially equivalent means for engaging in a hole in the transport perforation of the film start.
  • the perforation engaging means or the trapping means for the film end are attached near the bottom of the container and the container has tabs or steps inside which lead the leading end edge of the film on the spool towards the engaging or catching members as the film begins to unwind that these means can engage a hole in the film perforation or catch the front end of the film.
  • Processing liquid can be added to the container before or after the wound film is inserted. This can be done by pouring through a specially designed lid or by inserting through a specially designed base plate of the container or also through an inlet pipe mounted above the liquid level in the side wall of the container.
  • the apparatus according to the invention can be a simple container, the height of which is not considerably greater than the length of the spool carrying the wound film, or it can be part of a much larger apparatus which is designed to receive the cassette loaded with exposed film, the receiving area for the cassette being directly above the container in which the processing is carried out. In the latter case, means are provided which inevitably move the film on the spool out of the cassette and into the liquid container part of the device.
  • the film is preferably pressed out of the container by a mandrel fitted in the lid of the device.
  • the most advantageous in this case is the formation of the free mandrel end such that it can grip at the upper end of the bobbin in the cassette with a tight fit and subsequently holds this end thanks to the tight fit caused by slightly compressing the mandrel end.
  • the mandrel extending fully into the device can be rotated in both directions and preferably comprises an internal coupling so that it can only be rotated to a limited extent against an inhibiting force.
  • the device according to the invention consists of a simple container, there is a centrally arranged rotatable shaft in the cover, with which one end of the coil can be connected by means of a tight fit, and which in turn is equipped with external means for rotating the shaft.
  • An inner coupling is preferably provided on the central shaft, as in the case of the mandrel just mentioned, by means of which the tensile force exerted on the film during use of the device is limited.
  • the mandrel or shaft may be rotated and thereby endeavor to wind the film until the engaging member in the transport hole or the trapped front end of the filmstrip prevents further winding of the film.
  • the mandrel or knob can then be rotated in the opposite direction to unwind the film again until the film retention member on the spool prevents further unwinding of the film.
  • the rotation of the mandrel or the shaft allows the treatment liquid in the liquid container to circulate very evenly past all windings of the film roll. Because as soon as the film is in the liquid container and a transport hole is engaged or the end of the film is caught and there is treatment liquid in the container or is introduced into it, the mandrel or the shaft is first rotated in one direction and then in the opposite, so that the film strip winds up on the spool and then unwinds again. This causes considerable swirling of the liquid in the container and fresh treatment liquid is continuously pumped over the entire surface of the film in the container.
  • An automatic drive can be connected to the outer, non-spool end of the mandrel or shaft to cause the mandrel or shaft to rotate in one direction and then in the opposite direction until the processing step is complete.
  • the engaging member for engaging the perforation of the film strip consists of at least one spike-like projection on the inner wall of the container.
  • this engaging member is designed as a pivotably mounted or spring-loaded hook.
  • this is formed by a roller clutch.
  • Fig. 1 is a normal 35 mm film cassette which comprises two end caps B1 and B2 and a cassette body C and a film exit slot D formed by pinching together the two ends of the metal strip forming the cassette body C.
  • a coil E with a longer hub end F and a shorter hub end G is located in the cassette body.
  • the film is labeled J.
  • the leading end of the film leading during unwinding is labeled K and the transport holes are labeled L.
  • the lid 51 is initially covered by a Internal thread 53 held, which comes into engagement with an upper screw thread 52. However, after it is screwed down past the screw thread 52, it engages a lower male thread 54 of the body 50.
  • a cassette holding block 55 In the body 50 there is a cassette holding block 55, which in turn is held in its position in the body 50 by flags 56.
  • an ejection mandrel 57 is fastened, which has a resilient, forked end 58 which fits onto the axial member H in the coil E, with such a tight fit that the coil is held on the free end of the dome 57 after it has been ejected from the cassette body C (which is shown held in block 55).
  • the tabs 56 face the inside of the cassette from top to bottom and bevelled edges which delimit a space which widens towards the bottom and in which the film wound on the reel can unwind slightly when the reel is ejected from the cassette body C.
  • the liquid container space 59 is located in the body 50 below the chamfered areas of the flags 56.
  • An annular shoulder 60 protruding into the space 59 is formed on the body 50. This shoulder 60 facilitates the spreading of the front end K of the film J.
  • the liquid compartment 59 is closed off by a removable base plate 63, which is sealed by an O-ring 64.
  • the inside of the base plate 63 is shaped to receive the end cap B1 which has been ejected through the central opening from which the hub end F of the coil protrudes, and ensures that the ejected end cap B1 is in the position shown in FIG occupies.
  • the steps 65 in the base plate 63 form a support bearing for the long hub end F.
  • the cover 51 has three cavities 68 in its upper side (as shown in FIG. 2), which have an opening 69 in their base. These openings are freely connected to the inside of the body 50.
  • An annular flange 70 provided on the mandrel 57 serves as a light barrier and prevents light from entering the body 50 through the openings 69.
  • liquid can be poured into the cavities 68 and the openings 69 and flow through the cassette holding block 55 and further through the interior of the body 50 into the liquid container 59 without light passing through the ring flange 70 into the device.
  • a mandrel turning device 72 is connected to the upper end of the dome 57 facing away from the forked end 58 and is connected to the mandrel 57 by means of a coupling 73.
  • Fig. 3 the upper end wall of the lid is shown with three cavities 68 provided therein, at the bottom of which there is an opening 69 each.
  • the position of the mandrel turning device 72 is also indicated.
  • In the head of this rotating device 72 there is an axial member 76.
  • Below the end wall 67, the stop member 74 is indicated by dashed lines.
  • the block 55 is then pressed into the body 50 of the device such that the tabs 56 are inserted into the axial slots 55 of the block 55 and compress the block 51.
  • the forked end of the mandrel is then fitted onto the axial member H of the spool in the cassette and tightly connected to it.
  • the lid 51 is then screwed down over the body 50 by means of the mating threads 52 and 53.
  • the mandrel is firmly installed in the cover 51 until the stop member 74 is put out of function and the clutch 73 thereby comes into operation.
  • the mandrel 57 is set in rotation and acts on the spool in the cassette by detaching the end cap B1.
  • the mating screw threads remain in engagement with each other until the wound film leaves the cassette body C, whereupon the cover 51 moves further down the body 50 until the screw thread 53 on the cover with the lower thread 54 on the body 50 in Intervention comes.
  • the mandrel 57 is fully inserted into the cassette body 50 and still carries the spool at its forked end 58 wound film, the front of which is now beginning to spread. Also in this state, the pin 75 is out of engagement with the stop member 74, since this is raised so far that it is no longer in contact with it.
  • the clutch allows only limited winding and unwinding of the film.
  • the mandrel is immediately rotated first in one sense and then in the opposite, whereby the film on the spool is alternately unwound and wound up again.
  • This movement of the film in the liquid pumps it around in the liquid container and ensures that it swirls well over the film surface. This in turn guarantees uniform processing of the film.
  • the device is turned over and the liquid can flow out of it through the openings 69.
  • Another treatment liquid can then be introduced into the device through the openings 69 and the mandrel rotated as described above to ensure uniform processing. Finally, if necessary, washing water can be poured into the device.
  • the releasable base 63 can be removed from the body 50 of the device and the coil can then be removed from the device.
  • the device shown in Fig. 4 is exactly the same as the device shown in Fig. 2, except that a different type of removable base plate of the liquid container is used.
  • the removable base plate 80 comprises a complex labyrinth system of passages and light barriers 81. These are arranged so that when the device according to FIG. 4 is placed in a liquid bath, liquid can penetrate into the liquid container 59 up to the level of the liquid in the bath. If the device is lifted out of the bath, all liquid contained in the liquid container 59 flows out of the latter.
  • the device In operation, the device is now loaded with a cassette and the film on the reel is ejected from the cassette, as was described with reference to FIGS. 2 and 3. Instead of then pouring liquid through the openings 69 into the liquid container space 59, the device is placed in a bath with treatment liquid which is of sufficient depth to cover the film on the spool in the liquid container.
  • the liquid then enters the liquid container space 59 up to this level, with the flange 70 and the openings 69 serving as light-tight ventilation paths.
  • the mandrel is then rotated first in one direction and then in the opposite direction, as is the case with the device according to FIGS. 2 and 3.
  • the device After completion of the processing step, the device is lifted out of the treatment bath and the liquid in the liquid container space 69 flows out of it through the openings 81. As soon as the liquid stops flowing out of the device, it can be placed in another bath with a treatment liquid different from the first one and the whole treatment process can be repeated.
  • FIG. 5 shows a simplified embodiment of the device according to the invention, which shows a container 1 with a cover 2 screwed onto the container 1.
  • the lid 2 comprises a light labyrinth 3, which covers the liquid passage channels 4 in a light-tight manner, through which treatment liquid is introduced into the container 1 or through which it can be removed again by opening the container upside down.
  • An actuating shaft 6 is installed in the cover 2, the lower end 7 of which is forked.
  • the upper end of the shaft can be provided with a transverse groove 8, to which an automatically rotating rotation device can be attached.
  • the shaft 6 internally comprises a coupling which prevents the rotation of the shaft as soon as a force opposing the rotation in one of the two directions of rotation is exceeded.
  • the forked end 7 of the shaft 6 fits on the axial member H of the spool E.
  • the film J is shown as it is being unwound from the spool E.
  • the leading edge K of the film J has already been spread while the wound film has passed the ring shoulder 9 projecting into the interior of the container 1.
  • the two engagement pins 11 installed in the interior of the container 1 have penetrated into two of the transport holes L of the film perforation.
  • the long hub F of the coil E rests on an annular seat 12 which is formed in the bottom of the container 1 when it is formed.
  • the film J wound on the spool is removed from the cassette in the dark.
  • the axial member H in the short hub G of the coil is then fitted into the forked end 7 of the shaft 6 after the cover 2 has been removed from the container 1.
  • the spool with the film wound thereon is stuck to the lid 2, it is screwed down onto the container 1, taking care to ensure this must that the film does not unwind before the spool is inserted into the container 1 and the long hub F is on the seat 12.
  • the container 1 is then brought out of the dark and the shaft 6 rotated until it has been felt that the engaging members 11 engage the transport holes L of the film perforation.
  • the required amount of treatment liquid is then introduced into the container through the liquid channels 4.
  • the shaft 6 is then rotated either manually or automatically first in one sense until resistance is felt, and then in the opposite sense, again until resistance is felt.
  • the treatment liquid is automatically stirred as a result of the film moving back and forth in it, and fresh treatment liquid flows continuously over the film surface.
  • the treatment liquid is removed from the container by placing it on the top of the head, whereby it flows out of the liquid channels 4. Fresh treatment liquid is then introduced into the container through the channels and the shaft 6 is set in rotation as already described.
  • the lid 2 is unscrewed from the container 1 and the film wound on the spool is removed from the lid and washed with water.
  • FIGS. 6, 7 and 8 show cross sections through the liquid container part of the device, which schematically show engagement elements for the film perforation or film end catch means which relate to the engagement pins 62 of FIGS. 2 to 4. can replace the pin 11 in Fig. 5.
  • the transport hole engaging members or the film end catch are located after the end of the liquid container 83 of the device according to the invention. Furthermore, the film J is shown in the process of unwinding from the spool E.
  • a hook 84 is attached to the end of a lever 85 which is pivotally mounted at 86.
  • the other end 87 of the lever 85 extends into a recess 88 in the inner wall of the container 83.
  • a hook 90 is mounted on a lever 91 which is pivotally mounted at 92.
  • a compression spring 93 presses the hook against the inner wall of the container 83. If the end H of the unwound film J now passes the spring-loaded hook 90, it penetrates one of the transport holes in the end of the film.
  • a film end catcher is shown. This comprises a roller 99 and a stationary member 100.
  • the roller 99 can rotate freely, but is prevented from rolling in one direction by the inclined position of the member 100 and in the other direction by a curved end portion 101 of the member 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)

Claims (10)

1. Appareil pour le traitement d'un film photographique exposé, enroulé sur une bobine, comprenant un récipient cylindrique (50, 63) ayant un diamètre et une hauteur suffisants pour recevoir le film enroulé sur la bobine, un couvercle (51) servant à fermer le récipient ainsi que des moyens d'actionnement (57) qui peuvent être reliés à la bobine et être actionnés de l'extérieur et à l'aide desquels la bobine sur laquelle est enroulé le film peut être tournée alternativement dans un sens et dans l'autre, caractérisé en ce que le récipient (50, 63) et le couvercle (51) sont imperméables à la lumière et en ce que des moyens de capture (11, 62, 84, 90, 100) sont placés sur ou à proximité de la paroi intérieure du récipient de telle sorte que lorsque le film, après avoir été enlevé de la cassette et placé dans le récipient, se déroule partiellement de la bobine et s'écarte vers l'extérieur, ils s'engagent dans un trou de la perforation d'entraînement réalisée dans le bord longitudinal du film ou saisissent l'extrémité avant du film.
2. Appareil selon la revendication 1, caractérisé en ce que les moyens s'engageant dans la perforation d'entraînement sont placés à proximité du fond du récipient et en ce que le récipient présente à l'intérieur des rampes ou des épaulements qui sont destinés à guider le bord avançant du film se trouvant sur la bobine et guident, au début de l'enroulement, ce bord vers les moyens d'engagement ou de capture.
3. Appareil selon la revendication 1 ou 2, caractérisé en ce que les moyens s'engageant dans la perforation d'entraînement comprennent au moins un doigt se trouvant sur la paroi intérieure du récipient.
4. Appareil selon la revendication 1 ou 2, caractérisé en ce que les moyens s'engageant dans la perforation d'entraînement comprennent un crochet pivotant ou sollicité par ressort.
5. Appareil selon la revendication 1 ou 2, caractérisé en ce que les moyens de capture des extrémités du film comprennent un accouplement à rouleau.
6. Appareil selon l'une des revendications 1 à 5, caractérisé en ce que du liquide est introduit dans le récipient par un couvercle réalisé d'une manière particulière, par une plaque de fond d'une configuration particulière ou par un tube prévu dans la paroi latérale du récipient.
7. Appareil selon l'une des revendications 1 à 6, caractérisé en ce qu'il est prévu un dispositif qui est destiné à recevoir une cassette chargée d'un film exposé et se trouve directement au-dessus du récipient dans lequel a lieu le traitement du film ainsi que des moyens destinés à transférer le film se trouvant sur la bobine de la cassette dans une partie récipient de liquide de l'appareil.
8. Appareil selon la revendication 7, caractérisé en ce que le film est éjecté du récipient à l'aide d'un mandrin d'éjection placé sur le couvercle de l'appareil.
9. Appareil selon la revendication 8, caractérisé en ce que l'extrémité du mandrin d'éjection est réalisée de telle sorte qu'elle puisse être amenée facilement en prise avec l'extrémité de la bobine dans la cassette et maintienne ensuite cette extrémité par serrage obtenu par légère compression du mandrin.
10. Appareil selon la revendication 8 ou 9, caractérisé en ce que le mandrin d'éjection comprend un accouplement intérieur.
EP85810483A 1984-10-26 1985-10-21 Appareillage pour le développement d'un film exposé enroulé sur une bobine Expired EP0180545B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848427101A GB8427101D0 (en) 1984-10-26 1984-10-26 Processing device
GB8427101 1984-10-26

Publications (2)

Publication Number Publication Date
EP0180545A1 EP0180545A1 (fr) 1986-05-07
EP0180545B1 true EP0180545B1 (fr) 1988-11-23

Family

ID=10568787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810483A Expired EP0180545B1 (fr) 1984-10-26 1985-10-21 Appareillage pour le développement d'un film exposé enroulé sur une bobine

Country Status (5)

Country Link
US (1) US4678307A (fr)
EP (1) EP0180545B1 (fr)
JP (1) JPS61107347A (fr)
DE (1) DE3566464D1 (fr)
GB (1) GB8427101D0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8707133D0 (en) * 1987-03-25 1987-04-29 Ciba Geigy Ag Processing device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US978156A (en) * 1910-01-06 1910-12-13 Arthur C Hayden Developing-tank for photographic films.
US1395160A (en) * 1920-11-22 1921-10-25 Myron H Stockwell Daylight developing and fixing apparatus for roll-films
US2082962A (en) * 1934-11-23 1937-06-08 Lesjak Michael Developing tank for roll films
US2078579A (en) * 1935-04-23 1937-04-27 Leitz Ernst Gmbh Film spool and developing tank
US2781708A (en) * 1953-12-04 1957-02-19 Parker Pen Co Self-contained developing unit
US3605601A (en) * 1968-02-27 1971-09-20 Shigeru Okayama Automatic film developing apparatus
US3703859A (en) * 1970-04-13 1972-11-28 Minolta Camera Kk Daylight film developing tank
JPS50105457U (fr) * 1974-02-04 1975-08-29
SE398559B (sv) * 1976-10-05 1977-12-27 Lindgren Bertil Filmkassettoppnare
JPS5356025A (en) * 1976-11-01 1978-05-22 Medeika Kk Device for developing photographic film
DE3470964D1 (en) * 1983-11-23 1988-06-09 Ciba Geigy Ag Processing device for exposed photographic material

Also Published As

Publication number Publication date
JPS61107347A (ja) 1986-05-26
US4678307A (en) 1987-07-07
EP0180545A1 (fr) 1986-05-07
GB8427101D0 (en) 1984-12-05
DE3566464D1 (en) 1988-12-29

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