EP0009448A1 - Drehbarer Behälter für Tageslicht-Entwickler mit einmal verwendbaren Bädern zum Gebrauch bei der Behandlung photoempfindlicher oder anderer Oberflächen mit biegsamem Träger - Google Patents

Drehbarer Behälter für Tageslicht-Entwickler mit einmal verwendbaren Bädern zum Gebrauch bei der Behandlung photoempfindlicher oder anderer Oberflächen mit biegsamem Träger Download PDF

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Publication number
EP0009448A1
EP0009448A1 EP79400650A EP79400650A EP0009448A1 EP 0009448 A1 EP0009448 A1 EP 0009448A1 EP 79400650 A EP79400650 A EP 79400650A EP 79400650 A EP79400650 A EP 79400650A EP 0009448 A1 EP0009448 A1 EP 0009448A1
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EP
European Patent Office
Prior art keywords
tank
slot
cylinder
cover
inner cylinder
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.)
Ceased
Application number
EP79400650A
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English (en)
French (fr)
Inventor
Maurice Descotes
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0009448A1 publication Critical patent/EP0009448A1/de
Ceased legal-status Critical Current

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    • 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
    • G03D13/046—Drums; Films convolutely fixed on the side of the drum

Definitions

  • the present invention relates to a development bath in lost baths and in broad daylight for sensitive photographic or other surfaces with flexible support, of the type movable in rotation about its horizontal longitudinal axis in a first direction for cyclically immersing the sensitive surface in a liquid of treatment and in a second direction opposite to the first to evacuate said treatment liquid out of said tank, and comprising, on the one hand, a cylindrical container consisting of a cylinder with circular cross section, a non-removable bottom wall and integral with said cylinder, and with a removable cover provided with a central orifice and capable of closing said container in a light-tight manner, and, on the other hand, an evacuation corridor partially surrounding said cylindrical container and opening out, on the one hand, on the outside by a discharge opening and, on the other side, in a longitudinal slot of the cylindrical container.
  • the tanks of this type known for example by Dutch patent 113 444 do not allow the various treatment liquids to be introduced through a central orifice of the removable cover of the tank and have a considerable unbalance so that their rotation is irregular and leads quickly to the dangling of the tank which is harmful for a regular development of sensitive photographic surfaces.
  • the object of the invention is to eliminate these drawbacks and to propose a tank of the aforementioned type which, with the exception of the introduction of the sensitive surface into the tank, makes it possible to carry out all the other operations in broad daylight and without the products cannot be spilled inadvertently next to the tank.
  • the evacuation corridor is delimited by two concentric cylinders, the inner cylinder of which is provided with said longitudinal slot and the outer cylinder of which also includes a cutout or longitudinal slot located at least approximately between the same two radial planes passing through the edges of the slot of the interior cylinder and constituting the discharge orifice, that a connecting partition connects one of the longitudinal edges of the slot of the interior cylinder to the opposite longitudinal edge opposite to the slot of the outer cylinder, that the width of the inner slot is such that the radial planes passing through the longitudinal edges of the slot of the inner cylinder include an angle of approximately 45 ° and that the central opening of the removable cover is designed to so as to be light-tight and to let the treatment liquid pass into the internal cylinder.
  • the tank is well balanced in rotation, the bath is cyclically efficiently agitated and the sensitive surface is treated in a precise and regular manner.
  • the tank is easy to handle, in particular as regards the installation of the sensitive surface and the introduction and evacuation of the treatment liquids.
  • the treatment liquid introduced into the tank accumulates in the evacuation corridor and in the slot of the inner cylinder without coming into contact with the photosensitive surface before the said tank is rotated.
  • German patent application 2 047 864 there is already known a development tank associated with a support and rotary drive device of the type comprising a box provided with two compartments, one of which comprises a drive mechanism such as '' a motor for the development tank and the other of which comprises, at the bottom, a collecting channel and, above this, said tank which, in horizontal position, rests on two support shafts which are mounted movable in rotation in bearings and of which that mounted in the separating partition between the two compartments is hollow and is provided with a supply tube as well as a drive member connected to said motor by means of a transmission.
  • a drive mechanism such as '' a motor for the development tank
  • the other of which comprises, at the bottom, a collecting channel and, above this, said tank which, in horizontal position, rests on two support shafts which are mounted movable in rotation in bearings and of which that mounted in the separating partition between the two compartments is hollow and is provided with a supply tube as well as a drive member connected to said motor by means of
  • the development tank seems to be installed in a fixed position and does not have a non-removable cover to allow the introduction of the photosensitive surface in the axial direction of the tank.
  • the bottom wall integral with the two concentric cylinders also includes a recess which is of identical shape to that of the cover, is aligned with the longitudinal axis of the tank and the recess of the cover and is also directed towards inside the inner cylinder, the recesses are each capable of receiving a rotary shoe which fits without significant lateral play in the corresponding recess so as to be able to transmit to said tank a torque, which comprises a shaft extending on the diverted side of the tank, aligned on the longitudinal axis of said tank and mounted mobile in rotation in a corresponding bearing and which supports with said shoe said tank during its rotation, that the shafts of the corresponding shoes and bearings are aligned with one another , that the shoe and its shaft associated with the cover are hollow and crossed by a feed tube whose end protrudes from the cover tube and enters the cover cap and that the other shoe and its bearing
  • the development tank is easy to use and handle.
  • the developing tank is constituted by a tank body 100 and its removable cover 110.
  • the tank body 100 comprises an inner cylinder 1 of diameter 0 1 and of length L suitable for the dimensions of the sensitive surface to be treated S, and an outer cylinder 2 concentric with the cylinder 1 of diameter 0 2 and of length 1.
  • the diameter 0 2 of the cylinder 2 is greater than the diameter ⁇ 1 of the cylinder 1 so that a discharge passage 5 creates between the outer wall the of the inner cylinder 1 and the inner wall 2i of the outer cylinder 2 has a sufficient width for rapid evacuation of liquids contained in cylinder 1.
  • the length 1 of the cylinder 2 is less than the length L of the cylinder 1 by a value d which corresponds to the depth of insertion of the cover 110 into the inner cylinder 1.
  • the cylinders 1 and 2 are hermetically closed by a non-removable bottom wall 10 in which is made a recess 12 comprising a coaxial side wall 12a and a bottom perpendicular to the longitudinal axis 00 'of the tank 100.
  • the recess 12 is directed towards the inside of the inner cylinder 1.
  • the discharge passage 5 is necessarily of annular and cylindrical shape and a hermetic and irremovable collar 11 closes its end situated on the side of the cover 110.
  • the cylinder 1 At its end opposite to the bottom wall 10, the cylinder 1 is open, this open end being able to be sealed off by the removable cover 110.
  • an oblong opening or slot 4 is made in the wall of the internal cylinder 1 over a length 1 which starts from the bottom wall 10 and extends to the other end of the outer cylinder 2 and which therefore also corresponds to the length thereof.
  • the slot 4 constitutes the opening through which the discharge passage 5 is connected to the interior of the interior cylinder 1.
  • the corridor 5 delimited by the walls of the interior and exterior cylinders 1,2, the bottom wall 10 and the flange 11 , open into the open air through an evacuation orifice 6 of rectangular section which comes from a cutout or a longitudinal slot 106 made in the wall of the outer cylinder 2 at least approximately in the radial extension of the edges 4a, 4b of the inner slot 4.
  • the transverse width of the interior slot 4 is such that the radial planes 101, 102 passing through the longitudinal edges 4a, 4b of the slot 4 of the interior cylinder 1 include an angle of approximately 45 ° (FIG. 3).
  • the transverse width of the outer slot or cutout 106 is at least approximately equal and preferably lower than that of the inner slot 4.
  • the positions of the two slots 4 and 106 relative to one another are such that the outer slot 106 is at least approximately between the two radial planes 101, 102 passing through the edges 4a, 4b of the slot 4 of the inner cylinder 1.
  • the inner cylinder 1 is connected to the concentric outer cylinder 2 by a connecting partition 3 which is planar or slightly curved and which, preferably, leaves tangentially from the edge 4a of the inner cylinder 1 and is connects, if necessary in a curved and progressive manner to the opposite distant edge 106b of the wall of the outer cylinder 2, delimiting with said wall an obtuse angle.
  • this connecting partition 3 ensures continuity between the inner wall li of the inner cylinder 1 from one (4a) of the longitudinal edges 4a, 4b of the slot 4, and the inner wall 2i of the outer cylinder 2 to the edge location 106b located opposite the free edge 4b of the interior slot 4.
  • One (106a) of the longitudinal edges 106a, 106b of the slot or external cutout 106 is preferably situated in the same radial plane 101 as the edge 4a of the slot 4, edge 4a connected to the connecting partition 3.
  • the other edge 106b is located between the two radial planes 101 and 102 and could even be at the place defined by the intersection of the bisector plane of the radial planes 101 and 102 and the outer cylinder 2.
  • the volume of the demarcated bowl by the plane 103 passing through the edges 4a, 4b and the connecting partition and the inner wall 2i of the outer cylinder until the intersection thereof with the plane 103 can be increased as well as the volume of the treatment bath which for the appropriate position of the tank, position in which the plane 103 is horizontal will accumulate in said bowl and will not come into contact with the sensitive surface S before the tank 100 starts to rotate.
  • the difference between the diameters of the two cylinders 1,2 is chosen such that the thickness or radial height of the evacuation corridor 5 is sufficient to rapidly evacuate the treatment liquids towards the orifice 6.
  • the tank 100 has practically no noticeable imbalance.
  • each longitudinal edge 4a, 4b of the inner slot 4 is preferably arranged, in an adjustable manner in the circumferential direction, on the inner wall li of the inner cylinder 1 a row of lugs 7,8 the pins of which are regularly spaced and serve as lateral stops for holding the sensitive surface S inside the internal cylinder 1 against its movement in one or the other circumferential direction and thus avoid blocking of the slot 4.
  • the removable cover 110 of the tank 100 comprises an outer wall in the form of an annular disc 13 perpendicular to the axis 00 'and having set back from its edge a flexible cylindrical flange 18 of length d which fits in a strictly airtight manner. interior of the interior cylinder 1. At the interior edge of the annular wall 13 is connected a coaxial cylindrical side wall 17a which with the bottom 14 defines a recess 17 directed towards the interior of the interior cylinder 1. The height of the side wall 17a and therefore the depth of the recess 17 are substantially equal to the height d of the flange 18.
  • the bottom 14 of the cover 110 is parallel to the annular wall 13. The shape of this recess 17 is identical to that of the ren 12 from the bottom wall 10 of the tank 100.
  • the side wall 12a, 17a of each recess 12,17 has two parallel flat faces 12b, 12c and 17b, 17c and between the ends of said parallel flat faces, two curved faces of preferably cylindrical 12d, 12th and 17d, 17th.
  • the flat faces 12b, 12c or 17b 17c and the curved faces 12d, 12e or 17d, 17e are arranged symmetrically with respect to the axis of the cylindrical recess 12,17 which is in alignment with the axis 00 'of the tank 100.
  • the pair of flat faces of each recess is intended to come into contact with a member of corresponding shape and to transmit to the tank 100 a torque or rotational movement.
  • a central circular orifice 16 provided in the bottom 14 and extended by a tube 15 directed towards the outside of the interior cylinder 1 will make it possible to introduce into the interior cylinder 1 the baths necessary for the development of the sensitive surface S.
  • the light tightness of the cover 110 at the location of the orifice 16 is ensured by a cap 19 of frustoconical shape which covers, at a distance, the tube 15, the side wall 17a and the bottom 14 of the recess 17, penetrates , by its enlarged end 19a in the annular groove 18a delimited by the side wall 17a and the flange 18 and which is fixed to the bottom 14 by spacing pads 20 spaced such that they allow the passage of liquids from the top from the cap 19 towards the inside of the inner cylinder 1.
  • the outside diameter of the annular wall 13 of the cover 110 is between the diameters 0 1 and 0 2 of the cylinders 1 and 2.
  • the fitting of the cover 110 into the inner cylinder 1 of the tank 100 is done by pressure, the flexibility of the cylindrical flange 18 being such that its slight deformation will ensure the holding of the cover 110 on the tank 100 and the tightness thereof in the tank-cover contact area.
  • the dimensions of the tank 100 are appropriate for the formats of the sensitive surfaces S.
  • the difference between the diameters 0 1 and 0 2 is sufficient to rapidly evacuate the liquids while keeping the inner cylinder light-tight.
  • the material used for the tank will be as light as possible and resistant to any corrosion by the baths. Plastics are particularly suitable for the manufacture of tanks.
  • the thickness of the cylinder walls is as thin as possible to obtain a light and perfectly rigid tank.
  • the device for supporting and driving in rotation of the tank 100 comprises a parallelepipedic box 120 which comprises two compartments 121, 122 separated from each other in a sealed manner by a separating partition 38 and one of which (121) is provided with a drive mechanism such as a motor 28 for the tank 100, and the other (122) of which is provided, at the bottom, with a collecting channel 41 and at above it, of said tank 100.
  • the box 120 is made of a corrosion-resistant material and comprises different vertical and horizontal longitudinal and transverse walls indicated in FIGS. 6, 7, 8 by the references 36 to 45.
  • each shoe 21, 31 therefore comprises a pair of parallel flat lateral faces 21a, 21b or 31a, 31b and two preferably cylindrical curved faces 21c, 21d or 31c, 31d which each connect the corresponding ends of two faces parallel planes 21a, 21b or 31a, 31b.
  • each support and drive shoe 21,31 are arranged symmetrically with respect to the aligned axes of the shoes 21,31, these axes also being aligned with that of the tank 100 in a horizontal position (figure 6). Thanks to this particular conformation of the pads 21, 31 and the recesses 12, 17 of the bottom wall 10 and of the cover 110 of the tank 100, a coupling of the latter to its support and drive device can easily be established. or defeated. Thus the movement or torque can be transmitted to the tank 100 without difficulty.
  • each shoe 21, 31 is provided with a support shaft or end piece of tree 23, 33 which is coaxial with the corresponding shoe and mounted in a bearing 22 or 32.
  • the bearing 22 supporting the shaft 23 of the shoe 21 associated with the cover 110 of the tank 100 is clamped and fixed on the separating partition 38 so that it is partly (the flange 22a) in the compartment 122 of the tank 100 and partly in compartment 121 containing the motor 28.
  • the shaft 23 and the shoe 21 are pierced in their center by a cylindrical bore 25 in which will pass an elbow feed tube 26 connected to a funnel 27 fixed on the cover 45 of the compartment 121.
  • the feed tube is of a length such that its free front end penetrates through the orifice 16 and the tube 15 of the cover 110 in the cap up to about five millimeters from the bottom thereof.
  • the free end of the hollow shaft 23 of the shoe 21 protrudes from its bearing 22 and enters the compartment 121 of the engine 28.
  • a grooved pulley (or chain sprocket) 24 is keyed onto the free end of the hollow shaft 23 and is connected via a transmission such as a belt (or other) 30 and another pulley 29 to the electric motor 28 or to a crank which will make it possible to rotate the tank 100 in the direction T or the opposite direction V (FIG. 3).
  • the other end, that is to say the bottom wall 10 of the tank 100 is supported by the shoe 31, the lateral contour of which adapts without significant play to that of the recess 12 in the bottom wall 10.
  • the face rear of the shoe 31 is integral with the shaft end piece 33 freely rotating in the bearing 32 which is mounted on a mobile support 34.
  • This mobile support 34 is adjustable in axial position and can move in the longitudinal direction of the tank 100 in two horizontal slides 35 fixed to the longitudinal walls 43 and 44 of the box 120.
  • the support 34 of the bearing 32 is adjusted and held in a position in which the shoe 21 is held in the recess 17 of the cover 110.
  • One or more return springs 47 may also be used to permanently urge the partition 38 and the other shoe 21 the support 34 with the bearing 32 and its shoe 31. To this end, two springs 47 are fixed, on the one hand, to the mobile support 34 and, on the other hand, to the separating partition 38.
  • the tank 100 is put in place and held horizontally between the pads 21 and 31 embedded in the recesses 17 and 12 of the removable cover 110 and of the bottom wall 10 of the tank 100 and the return springs 47 of the movable support 34 prevent the tank 100 to disengage from its support pads 21,31 during walking, while keeping the cover 110 hermetically closed on tank 100.
  • the receptacle for receiving used products is constituted by the inclined channel 41 which evacuates via the pipe 42 towards the outside (for example towards an evacuation sink) the treatment liquids leaving the tank 100 through the orifice 6.
  • the cover 40 closes the compartment 122 of the box 120 and a blower with incorporated thermostat 46 will produce a hot air bath at more or less 1 degree necessary to maintain the interior of the housing 120 at the desired temperature.
  • the dimensions of the box 120 are determined according to the largest tank that one wishes to use. All the tanks of smaller dimensions can be used thanks to the axial mobility of the shoe 31 and its bearing 32.
  • this box can also be used for the treatment of all formats, lower in suitable tanks, since the movable bearing 32 is constantly stressed by the springs 47 in the direction of the fixed bearing 22 until the shoe 31 bears against the bottom 9 of the recess 12.
  • the open end of the inner cylinder 1 can be provided with a flange lla against which the outer part of the outer wall 13 of the cover 110 can be applied.
  • this cover 110 can be made mechanically integral with the tank body 100 to using removable pliers 130, for example three paper-type pliers which cover the edges of the collar 11a and of the outer wall 13 (see FIGS. 2 and 6).
  • the described development tank is cylindrical in shape, the cross section of which has the general appearance of an unclosed curve which makes almost two revolutions around the longitudinal axis of the tank and which comprises two concentric circular parts each covering substantially the same circular sector whose radii Include an angle of the order of 300 to 320 degrees, the inner circular part being connected to the outer circular part by a straight line or slightly curved and leaving tangentially from the internal part.
  • the direction of rotation of the tank 100 is reversed, which then turns in the direction V.
  • the apparent displacement of the bath B is then made in the direction of arrows v (see figure 10).
  • the bath B enters the corridor 5 through the slot 4 until it is discharged through the orifice 6 in the channel 41 ( Figures 6,7,8).
  • the retaining lugs or stops 7 prevent the sensitive surface S from being entrained by the evacuated bath, when the tank rotates in the opposite direction, that is to say in the direction of the arrow V.
  • the pins 7 prevent the sensitive surface S from being entrained by the discharged water.
  • the air By turning in direction T, the air will penetrate into the corridor 5 through the orifice 6 and into the cylinder 1 through the slot 4 which will keep the interior of this tank at the temperature of the air in the device.
  • the treatment bath will therefore remain, given the volume used, even in small quantities, at its ideal working temperature.
  • the sensitive surface S can be preheated by introducing into the inner cylinder 1 before any bath, a volume of water at the treatment temperature.
  • the tank and its drive device have been designed to develop in sensitive baths and in broad daylight sensitive photographic surfaces with flexible support, intended for black and white and color reproductions of all types.
  • the invention can be used by amateurs or professionals of photography, in the medical and industrial field to develop flexible flat films exposed to active radiation such as X-rays.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Treatment Of Fiber Materials (AREA)
EP79400650A 1978-09-18 1979-09-18 Drehbarer Behälter für Tageslicht-Entwickler mit einmal verwendbaren Bädern zum Gebrauch bei der Behandlung photoempfindlicher oder anderer Oberflächen mit biegsamem Träger Ceased EP0009448A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7826649 1978-09-18
FR7826649A FR2436419A1 (fr) 1978-09-18 1978-09-18 Cuve de developpement a bains perdus et en plein jour des surfaces sensibles photographiques a support souple

Publications (1)

Publication Number Publication Date
EP0009448A1 true EP0009448A1 (de) 1980-04-02

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Application Number Title Priority Date Filing Date
EP79400650A Ceased EP0009448A1 (de) 1978-09-18 1979-09-18 Drehbarer Behälter für Tageslicht-Entwickler mit einmal verwendbaren Bädern zum Gebrauch bei der Behandlung photoempfindlicher oder anderer Oberflächen mit biegsamem Träger

Country Status (3)

Country Link
US (1) US4277159A (de)
EP (1) EP0009448A1 (de)
FR (1) FR2436419A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488702A1 (fr) * 1980-08-14 1982-02-19 Diaralux Cuve de developpement photographique

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Publication number Priority date Publication date Assignee Title
FR2488701A1 (fr) * 1980-08-18 1982-02-19 Diaralux Cuve de developpement photographique
FR2494460A1 (fr) * 1980-11-19 1982-05-21 Penchenier Jean Marie Procede de traitement d'epreuves en couleurs et dispositif de mise en oeuvre
US4634251A (en) * 1982-10-08 1987-01-06 501 Elektrotechnisch Bureau Moekotte B V Apparatus for developing photographs and photographic strips
US4708451A (en) * 1986-02-05 1987-11-24 Wing-Lynch, Inc. Container for developing machine
DE3722536C2 (de) * 1986-08-06 1996-02-22 Jobo Labortech Vorrichtung zum Entwickeln von lichtempfindlichen Materialien, wie Fotopapieren , im Rotationsverfahren
GB9226483D0 (en) * 1992-12-18 1993-02-10 Kodak Ltd A hollow rotary drum processor
US6979307B2 (en) 1997-06-24 2005-12-27 Cascade Medical Enterprises Llc Systems and methods for preparing autologous fibrin glue
US20080199513A1 (en) * 1997-06-24 2008-08-21 Cascade Medical Enterprises, Llc Systems and methods for preparing autologous fibrin glue
IT1303515B1 (it) * 1998-07-22 2000-11-06 Durst Phototechnick Ag Sviluppatrice a tamburo
GB0026950D0 (en) * 2000-11-03 2000-12-20 Eastman Kodak Co Processing photographic material
GB0031180D0 (en) * 2000-12-21 2001-01-31 Eastman Kodak Co Processing apparatus
US6663301B2 (en) 2001-12-21 2003-12-16 Eastman Kodak Company Chemical delivery system for use with a photographic processor and method of operation
US6517263B1 (en) * 2002-03-27 2003-02-11 Eastman Kodak Company Photographic processor having side by side processing paths and method of operation
US6722799B1 (en) 2002-10-28 2004-04-20 Eastman Kodak Company Photographic processing drum having a centrally located processing solution delivery system
US6698946B1 (en) 2002-11-13 2004-03-02 Eastman Kodak Company Dual groove photographic processing drum
US6722797B1 (en) 2002-12-02 2004-04-20 Eastman Kodak Company Photographic processing drum having a circular media holding cylinder and a linear dryer
US6715942B1 (en) 2002-12-02 2004-04-06 Eastman Kodak Company Photographic processing drum having a circular drying cylinder
US6896425B2 (en) * 2003-09-30 2005-05-24 Eastman Kodak Company Queuing arrangement for photographic media to be scanned
US20080190857A1 (en) * 2005-03-22 2008-08-14 Cascade Medical Entrprises, Llc System and Methods of Producing Membranes

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NL113444C (de) * 1900-01-01
US3585918A (en) * 1969-02-11 1971-06-22 Potomac Research Inc Photographic processing apparatus
DE2047864A1 (de) * 1970-09-29 1972-04-06 Fa. Heinrich Frings, 5300 Bonn Einrichtung zum Behandeln von lichtempfindlichem Material in um eine horizontale Achse rotierenden röhrenförmigen Behältern
DE2735447A1 (de) * 1976-08-11 1978-02-16 Paterson Prod Ltd Trommelentwickler-vorrichtung

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FR1549183A (de) * 1967-02-06 1968-12-13
US3727535A (en) * 1970-09-25 1973-04-17 R Streeter Photographic processing apparatus
DE2048302A1 (de) * 1970-10-01 1972-04-06 Autopan Heimerdinger & Stäbler oHG, 7021 Oberaichen Gerät zum Entwickeln und Nachbehandeln von photografischem Entwicklungsgut
US3856395A (en) * 1973-02-15 1974-12-24 A Comstock Color photo processing apparatus
US3864710A (en) * 1973-12-03 1975-02-04 Edward F Zuber Photographic processing apparatus
GB1494737A (en) * 1975-03-12 1977-12-14 Wilkinson Photo Prod Ltd Sheet film holder for a rotary drum-type photographic processor

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
NL113444C (de) * 1900-01-01
US3585918A (en) * 1969-02-11 1971-06-22 Potomac Research Inc Photographic processing apparatus
DE2047864A1 (de) * 1970-09-29 1972-04-06 Fa. Heinrich Frings, 5300 Bonn Einrichtung zum Behandeln von lichtempfindlichem Material in um eine horizontale Achse rotierenden röhrenförmigen Behältern
DE2735447A1 (de) * 1976-08-11 1978-02-16 Paterson Prod Ltd Trommelentwickler-vorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488702A1 (fr) * 1980-08-14 1982-02-19 Diaralux Cuve de developpement photographique

Also Published As

Publication number Publication date
FR2436419A1 (fr) 1980-04-11
FR2436419B1 (de) 1982-04-30
US4277159A (en) 1981-07-07

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