US3780637A - Photographic material processing apparatus - Google Patents

Photographic material processing apparatus Download PDF

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Publication number
US3780637A
US3780637A US00232387A US3780637DA US3780637A US 3780637 A US3780637 A US 3780637A US 00232387 A US00232387 A US 00232387A US 3780637D A US3780637D A US 3780637DA US 3780637 A US3780637 A US 3780637A
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United States
Prior art keywords
screw member
shank
rib
processing
convolutions
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Expired - Lifetime
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US00232387A
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English (en)
Inventor
R Horn
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
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Eastman Kodak Co
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Publication date
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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
    • 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

Definitions

  • ABSTRACT Apparatus for processing photographic material by immersing such material in processing solution includes a screw member which is provided with a shank having a longitudinally extending axis and with a rib projecting from the shank and helically disposed about the shank axis so as to form a series of uniformly spaced rib convolutions.
  • the rib convolutions are adapted to hold a flexible strip of photographic material in a helical winding.
  • a frame member of the apparatus is provided with a base which supports several processing solution tanks in fixed, aligned relation.
  • the frame member is further provided with other structure which supports the screw member for rotation about the shank axis and for translation in a manner such that the rib convolutions depend into, and move successively through, the tanks.
  • a screw-mating member of the apparatus is located on the frame and adapted to be received between the rib convolutions for effecting translation of the screw upon screw rotation about the shank axis.
  • the present invention relates to apparatus for processing strip material by fluid-treating such material and, more particularly, to means by which a flexible strip having a photographic surface is guided and supported during processing treatment by a fluid.
  • One well known version of this apparatus which is adapted for use with film strip material, includes a plurality of tanks each of which contain a different film processing liquid such as a developing solution, a fixing solution and a washing solution.
  • the tanks are disposed in fixed, aligned relation in order that an exposed film strip may be advanced from tank to tank and successively treated by the different processing liquids.
  • the film processing apparatus further includes several groupings of vertically disposed rollers which are respectively immersed in the different processing liquids, within the tanks, for moving the exposed film strip through such liquids.
  • rollers are located between the tanks for moving the exposed film strip from tank to tank. Together these rollers define a sinuous film strip advance path which interconnects the tanks. Upon rotationally driving the rollers at the same speed, the exposed film strip will be moved along the sinuous path through the tanks and will be successively immersed in the different processing liquids.
  • Such film strip processing apparatus although widely accepted by photofinishers, has several disadvantages.
  • one disadvantage is that the rotating rollers (especially if not driven at exactly the same speed) may scratch or mar the emulsion-bearing surface of an exposed film strip moving along the sinuous path.
  • Another disadvantage is that the rotating rollers tend to produce a strain or mechanical load on an exposed film strip moving along the sinuous path, so that such film strip may be caused to separate at splices or joins therein.
  • the exposed film strip when an exposed film strip is secured along the band length and the drive rollers are actuated to rotate the band convolutions, the exposed film strip will be conveyed successively through the different tanks and, in that way, will be subjected to the several stages of processing solution treatment such as developing, fixing and washing.
  • the film strip processing apparatus disclosed in Great Britain Pat. No. 584,556 while appearing to represent an improvement over previously known devices, has several shortcomings.
  • One such shortcoming is that the endless band, due to the flexing which occurs during rotation about the annular axis, may develop cracks or become separated from the drive rollers.
  • Another shortcoming is that the band may not maintain a constant helical shape after prolonged use and, in such event, the periods for which an exposed film strip is respectively immersed in the different processing liquids may vary from those originally intended and necessary for best processing of such film strip.
  • a primary object of the present invention is to provide apparatus for processing strip material by successively exposing such material to a plurality of processing fluids and which is improved so as to avoid the foregoing difficulties existing with respect to those devices previously known.
  • Another object of the present invention is to provide apparatus for processing photographic strip material by successively immersing such material in a plurality of processing solutions and which is generally free from the possibility of break-down after prolonged use.
  • a further object of the present invention is to provide photographic processing apparatus, including means by which a flexible strip having a photographic surface is guided and supported during treatment by a processing solution and which substantially minimizes the strain or mechanical load placed on the photographic strip.
  • apparatus for processing photographic strip material by successively immersing such material in a plurality of different processing liquids such as a developing solution, a fixing solution and a washing solution.
  • Such apparatus includes a screw member which is provided with a shank having a longitudinally extending axis and with a rib projecting from the shank and helically disposed about the shank axis so as to form a series of uniformly spaced rib convolutions.
  • the rib convolutions are adapted to hold a flexible strip of photographic material in a helical winding.
  • a frame member of the apparatus is provided with a base which supports several processing solution tanks in fixed, aligned relation.
  • the frame member is further provided with other structure which supports the screw member for rotation about the shank axis and for translation in a manner such that the rib convolutions depend into, and move successively through, the tanks.
  • a screw-mating member of the apparatus is located on the frame and adapted to be received between the rib convolutions for effecting translation of the screw upon screw rotation about the shank axis.
  • FIG. I is a side elevation view, partly in section, of a photographic strip processing apparatus according to a preferred embodiment of the present invention.
  • FIG. is a section view of such alternative embodiment of the photographic strip processing apparatus, as viewed along the line 5-5 in FIG. 3.
  • FIG. 1 there is shown a flexible strip of exposed photographic material 1, such as a 35mm film strip, and a photographic strip processing apparatus which is generally indicated by the reference number 2.
  • the photographic processing apparatus 2 is adapted to successively immerse the exposed film strip 1 in several different processing liquids such as developing solution, a fixing solution and awashing solution.
  • processing liquids such as developing solution, a fixing solution and awashing solution.
  • Such liquid treatment of the exposed film strip 1 is intended toconvert the latent images thereon into visible images, according to film developing practices well known in the photographic art.
  • the photographic processing apparatus2 includes a screw member 3 which is provided with a cylindrical shank 4 having a longitudinally extending axis 5 and with a rib 6 or screw thread projecting from the shank.
  • the rib 6 is helically disposed about the shank axis 5 so as to form a series of three uniformly spaced rib convolutions -7, 8 and 9.
  • a channel or track 10 located along the rib convolutions 7-9, is shaped-to receive and support the exposed film strip 1 in a helical winding, with an emulsion-bearing face 11 of such wound film strip being spaced from the rib 6 as shown in FIG. 1.
  • a plurality of pins several of which are indicated by the reference number 12 project from the rib convolutions 7-9 and are adapted to respectively extend through a plurality of film strip perforations (several of which are indicated by the reference number 13) to thereby engage such wound film strip.
  • Suitable clips (not shown) or other devices may be used to secure opposite ends of the wound film strip 1 to the rib convolutions 7 and 9.
  • a generally U-shaped frame member 14 of the photographic processing apparatus 2 is provided with a horizontal base 15 whitch supports three processing solution tanks or stations 16, 17 and 18 in fixed, aligned relation. Each of the tanks 16-18 is open at the top so that the rib convolutions 7-9 of the screw member3 can depend into such tanks in the manner shown by FIGS. 2 and 3.
  • thetanks 16-18 respectively contain a developing solution 19, a fixing solution 20 and a washing solution 21.
  • the frame member 14 is further provided with spaced opposed vertical support'members 22 and 23 which, as shown in FIG. 1, project from the base-15 and include bearings 24 and 25.
  • Two rodlike arms-26 and 27 of the screw member 3 are fixed to opposite ends 'of the shank 4 and extend through the bearings 24 and 25.
  • the bearings 24 and 25 in turn, thus support or mount the screw member 3 for rotation about the shank axis 5 and for translation along such axis so that the rib convolutions 7-9 can be moved into,
  • the processing solution tanks 16-18 are partially defined by four parallel spaced walls 28, 29, 30 and 31 which, as viewed in FIG. 1, project vertically from the frame base 15.
  • the tank walls 28-31 serve as screw-mating members of the photographic processing apparatus 2, in that such walls are adapted to be successively received between the rib convolutions 7-9 for bringing about the translation of the screw member 3 along the shank axis 5 upon screw rotation about such axis (see FIGS. 1 and 2).
  • a handle 32 fixed to the screw arm 27, is rotated about the shank axis 5 in a clockwise directiongenerally indicated by the arrow 33 in FIG. 1.
  • the screw member 3 will be similarly rotated, and in response thereto, will be translated along the shank axis 5 in a direction generally indicated by the arrow 34 in FIG. 1. Accordingly, as can be appreciated from FIGS.
  • the rib convolutions 7-9 and the exposed film strip 1 will be moved successively throughthe developing solution 19, the fixing solution 20 and the washing solution 21 so as to process such film strip.
  • curved edge segments, 35, 36, 37 and 38 respectively of the tank walls 28-31 serve to provide additional vertical support for the shank 4 as the rib convolutions 7-9 and the film strip 1 are moved successivelythrough the processing solution tanks 16-18.
  • the film strip can be removed from the rib convolutions 7-9 and then placed in a drying device (now shown).
  • a drying device may be mounted on the frame base 15 at a location to the left of the washing solution tank 18 as viewed in FIG. 2. The rib convolutions 7-9 and the film strip 1 would then be moved into such drying device upon exiting from the washing solution tank 18.
  • FIG. 4 there is shown a modified version 39 of the photographic processing apparatus 2 just described.
  • the screw member 3 of the modified apparatus 39 is provided with nine rib convolutions 40, 41, 42, 43, 44, 45, 46, 47 and 48 which are uniformly spaced along the shank 4.
  • the vertical support member 23 which projects from the frame base 15 includes an opening 49 through which the screw member 3 extends.
  • An internal screw thread, located in the opening 49, is defined by a projecting helical rib 50.
  • the projecting rib 50 is adapted to be successively received between the rib convolutions 40-48 upon rotation of the screw member 3 about the shank axis 5.
  • the projecting rib 50 in the modified apparatus 39, serves to effect translation of the screw member 3 along the shank axis 5 upon screw rotation about such axis.
  • the handle 32 is rotated in a clockwise direction, generally indicated by the arrow 33 in FIG. 4, so as to similarly rotate the screw member 3.
  • the screw member 3 is translated along the shank axis 5 in a direction generally indicated by the arrow 34, in FIG, 4, and the rib convolutions 40-42. together with the exposed film strip 1 are moved successively through the developing solution 19, the fixing solution and the washing solution 21 to thereby process such film strip.
  • the processing solution tanks 16-18 are partially defined by tank walls 51, 52, 53 and 54. These tank walls 51-54 differ from the tank walls 28-31, shown in FIGS. 1-3, in that the first mentioned tank walls are not adapted to effect translation of the screw-member 3 along the shank axis 5 upon screw rotation about such axis.
  • a film strip processing apparatus consisting essentially of two separate components, i.e., the screw member 3 and the frame member 14, the first of which is movable with respect to the other.
  • Such a film processing apparatus has important advantages in that the moving parts thereof are kept to a minimum and very little strain or mechanical load is placed'on the exposed film strip 1 while such film strip undergoes liquid-treatment.
  • processing apparatus has been described for use with the film strip 1, the processing apparatus can be modified to provide fluid-treatment for other kinds of web material. Moreover, although the processing apparatus has been illustrated with a developing solution tank 16, a fixing solution tank 17 and a washing solution tank 18, the number and contents of these tanks may be varied.
  • a screw member including:
  • a shank having a longitudinally extending axis
  • a screw member including:
  • a shank having a longitudinally extending axis
  • a screw member including:
  • a shank having a longitudinally extending axis
  • a helical rib projecting from said opening defining means and adapted to be received between said rib convolutions of said screw member.
  • a screw member including:
  • a. a generally cylindrical shank having a longitudinally extending axis
  • c. means located along said rib convolutions for holding such photographic strip material in a helical winding about said shank axis, with the emulsion-bearing face being spaced from said rib,

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
US00232387A 1972-03-07 1972-03-07 Photographic material processing apparatus Expired - Lifetime US3780637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23238772A 1972-03-07 1972-03-07

Publications (1)

Publication Number Publication Date
US3780637A true US3780637A (en) 1973-12-25

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US00232387A Expired - Lifetime US3780637A (en) 1972-03-07 1972-03-07 Photographic material processing apparatus

Country Status (5)

Country Link
US (1) US3780637A (sv)
DE (1) DE7308490U (sv)
FR (1) FR2175430A5 (sv)
GB (1) GB1413756A (sv)
HK (1) HK33676A (sv)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005464A (en) * 1975-10-20 1977-01-25 Kreonite, Inc. Apparatus and method for processing photographic film
WO2021014393A1 (en) * 2019-07-25 2021-01-28 Arcelormittal Deposition facility and method for coating a substrate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU185692A1 (ru) * В. Н. Смирнов , А. П. Горбунов УСТРОЙСТВО дл ФОТОЛАБОРАТОРНОЙ ОБРАБОТКИ РОЛИКОВОЙ ПЛЕНКИ
US1916207A (en) * 1932-07-21 1933-07-04 Francisco Marshall De Automatic film developing machine
US2142881A (en) * 1938-03-07 1939-01-03 Harry R Bell Photographic film processing apparatus
US2361583A (en) * 1943-02-01 1944-10-31 American Anode Inc Method and apparatus for manufacturing articles from liquid coating compositions
CA784976A (en) * 1968-05-14 Zoglmann Rudolf Device for processing photographic sheet material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU185692A1 (ru) * В. Н. Смирнов , А. П. Горбунов УСТРОЙСТВО дл ФОТОЛАБОРАТОРНОЙ ОБРАБОТКИ РОЛИКОВОЙ ПЛЕНКИ
CA784976A (en) * 1968-05-14 Zoglmann Rudolf Device for processing photographic sheet material
US1916207A (en) * 1932-07-21 1933-07-04 Francisco Marshall De Automatic film developing machine
US2142881A (en) * 1938-03-07 1939-01-03 Harry R Bell Photographic film processing apparatus
US2361583A (en) * 1943-02-01 1944-10-31 American Anode Inc Method and apparatus for manufacturing articles from liquid coating compositions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005464A (en) * 1975-10-20 1977-01-25 Kreonite, Inc. Apparatus and method for processing photographic film
WO2021014393A1 (en) * 2019-07-25 2021-01-28 Arcelormittal Deposition facility and method for coating a substrate
WO2021014198A1 (en) * 2019-07-25 2021-01-28 Arcelormittal Deposition facility and method for coating a substrate

Also Published As

Publication number Publication date
DE7308490U (de) 1973-09-06
FR2175430A5 (sv) 1973-10-19
HK33676A (en) 1976-06-11
GB1413756A (en) 1975-11-12

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