CA1038213A - Photographic processor with resilient fibers covering roller - Google Patents
Photographic processor with resilient fibers covering rollerInfo
- Publication number
- CA1038213A CA1038213A CA231,371A CA231371A CA1038213A CA 1038213 A CA1038213 A CA 1038213A CA 231371 A CA231371 A CA 231371A CA 1038213 A CA1038213 A CA 1038213A
- Authority
- CA
- Canada
- Prior art keywords
- main roller
- roller
- rollers
- processing
- film
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 4
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000007723 transport mechanism Effects 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 7
- 230000032258 transport Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G03D3/132—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 by roller assembly
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Wet Developing In Electrophotography (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
PHOTOGRAPHIC PROCESSOR WITH RESILIENT FIBERS COVERING ROLLER
ABSTRACT OF THE DISCLOSURE
A transfer mechanism for use with a continuous film processing apparatus is disclosed. The transfer mechanism includes a combination of a large diameter main roller and a pair of auxiliary rollers of smaller diameter biased against the main roller. The main roller is covered with a mesh cloth having a plurality of loop-shaped projections made of untwisted three piece yarn units which contact the auxiliary rollers.
A photo-sensitive material, such as film, is introduced between the main roller and the auxiliary rollers in a processing liquid and is transferred speedily and processed evenly without any damage to the emulsified coating.
ABSTRACT OF THE DISCLOSURE
A transfer mechanism for use with a continuous film processing apparatus is disclosed. The transfer mechanism includes a combination of a large diameter main roller and a pair of auxiliary rollers of smaller diameter biased against the main roller. The main roller is covered with a mesh cloth having a plurality of loop-shaped projections made of untwisted three piece yarn units which contact the auxiliary rollers.
A photo-sensitive material, such as film, is introduced between the main roller and the auxiliary rollers in a processing liquid and is transferred speedily and processed evenly without any damage to the emulsified coating.
Description
~ ()3~3 BACICGROUND OF TH~ I~VEMTION
The present invention relates to an irnprovement in the ; photo-sensitive material processing devices and more particular-ly to a transport mechanism for handling photo-sensitive mater-` 5~ ials such as films.
i, Recently, the speed of processing of photo-sensitive materials has been increased by the use of a high temperature processing system which shortens, to a great degree, the time required for development, stop-hardening, bleaching, fixing 10, and stabilization, and water washing steps. In the new high temperature processes a photosensitive emulsion is used which ~ -has a hardness somewhat lower than conventional emulsions.
One of the most persistent problems in the processing of photo-sensitive materials is encountered in the transport l -' of the photosensitive materials through the various processing ~-, solutions. The conventional film transport mechanisms have ~-surfaces smoothed to a high degree of precision. Recently, ,i however, rollers covered with napped natural or synthetic ! fiber material have been proven very effective. These fabric ,l covered rollers do not require as much precision in manufacture 'I and also serve to agitate processing liquids, thereby contri-. ~i .
buting to speedy processing of the photo-sensitive materials.
However, despite the above-mentioned advantages, the new fabric 'I covered rollers can not adsorb or hold solid ~articles or , agglomerates generated in or introduced into the processing j liquid. Such particulate solids tend to fall down on the lower i; positioned rollers or float on the liquid surface from where they are picked up by the film and often damage the photo- I ;
sensitive emulsion. Further, the naps on the fiber material tend to lie flat on the surface of the roller thereby diminishin~
the ability of the mechanism to griD and efficiently transfer the photo-sensitive material.
,~
The present invention relates to an irnprovement in the ; photo-sensitive material processing devices and more particular-ly to a transport mechanism for handling photo-sensitive mater-` 5~ ials such as films.
i, Recently, the speed of processing of photo-sensitive materials has been increased by the use of a high temperature processing system which shortens, to a great degree, the time required for development, stop-hardening, bleaching, fixing 10, and stabilization, and water washing steps. In the new high temperature processes a photosensitive emulsion is used which ~ -has a hardness somewhat lower than conventional emulsions.
One of the most persistent problems in the processing of photo-sensitive materials is encountered in the transport l -' of the photosensitive materials through the various processing ~-, solutions. The conventional film transport mechanisms have ~-surfaces smoothed to a high degree of precision. Recently, ,i however, rollers covered with napped natural or synthetic ! fiber material have been proven very effective. These fabric ,l covered rollers do not require as much precision in manufacture 'I and also serve to agitate processing liquids, thereby contri-. ~i .
buting to speedy processing of the photo-sensitive materials.
However, despite the above-mentioned advantages, the new fabric 'I covered rollers can not adsorb or hold solid ~articles or , agglomerates generated in or introduced into the processing j liquid. Such particulate solids tend to fall down on the lower i; positioned rollers or float on the liquid surface from where they are picked up by the film and often damage the photo- I ;
sensitive emulsion. Further, the naps on the fiber material tend to lie flat on the surface of the roller thereby diminishin~
the ability of the mechanism to griD and efficiently transfer the photo-sensitive material.
,~
- 2 - `
!
1038;21~
SUMMARY OF T~IE I NVENTION
Accordingly, this invention provides an apparatus ~; for the transport and processing of photographic film com-prising:
a first rotatable cylindrical ~ember having a fabric-covered surface, said surface being composed of a plurality of outwardly extending loop-shaped projections . formed from a synthet1c polyamide fiber which is non-wettable - with respect to photographing processing fluids; and at least second and third rotatable cylindrical members disposed with their surfaces in contact with said . . 10 fabric covered surface of said first cylindrical member, f'' said second and third cylindrical members having diameters : :.
significantly smaller than that of said first cylindrical .. ... .
. member, said first, second and third cylindrical roller : me~bers being arranged with their centers disposed along . a common axis, the axis connecting the centers of said cylin-drical members making an angle of 5 with respect to the . horizontal plane.
, .
:. .
!
1038;21~
SUMMARY OF T~IE I NVENTION
Accordingly, this invention provides an apparatus ~; for the transport and processing of photographic film com-prising:
a first rotatable cylindrical ~ember having a fabric-covered surface, said surface being composed of a plurality of outwardly extending loop-shaped projections . formed from a synthet1c polyamide fiber which is non-wettable - with respect to photographing processing fluids; and at least second and third rotatable cylindrical members disposed with their surfaces in contact with said . . 10 fabric covered surface of said first cylindrical member, f'' said second and third cylindrical members having diameters : :.
significantly smaller than that of said first cylindrical .. ... .
. member, said first, second and third cylindrical roller : me~bers being arranged with their centers disposed along . a common axis, the axis connecting the centers of said cylin-drical members making an angle of 5 with respect to the . horizontal plane.
, .
:. .
-3-. _ _ ?~ _ .
~03~2~3 BRI~,F DESCRIPTION OE' THE D:RAWING
The sole figure is a front elevational vie~J, in cross-` section, of a part of a con~inuous film ~rocessing apparatus proYided with two film transport mechanisms of the present invention. ~ ;
Referring to the drawing, a first film transport mechan-ism indicated by Rl includes a main roller 1 of a relatively ' large diameter and a pair of suxiliary rollers 2 and 3 of a I relatively smaller diameter disposed on opposite sides of the 0 '~ main roller 1 so that the axis connecting the center of each roller makés an angle S of 5 with respect to the horizontal, with both auxiliary rollers bieng in rotational contact with the main roller 1.
~1 , .
, Similarly, a second film transport mechanism, desig-ii nated R2, includes a main roller 11, and a pair of auxiliary I rollers 12 and 13. The construction and arrangement of this '~ transport mechanism is quite similar to that of the Rl device, except that transport device R2 is provided with an additional ,' auxiliary roller 14 which rotationally contacts the lowermost il portion of the main roller 11 and with guide plates 15 and 16 which serve to guide the travel of a photographic film F.
'` The entire circumferential surfaces of the main rollers A I l and 11 are covered with a suitable fabric such as the type ii t ~ ~4rk) , ~' used as the female VELCR0/tape (commonly called "B" tape) made ~l of nylon. The outer or meshing surface 6 of the cloth on the ~I surfaces of the main rollers 1 and 11 is formed of a plurality il of tufts 7 each being a loop of untwisted three strand yarn.
, Liquid hold tanks or chambers H and J are adapted to feed fresh processing solutions onto the surfaces of main roller 0 ~ 1 and 11, respectively, via their respective liquid feeding apertures 20, 21 and 22.
.
,. !
-. ~
103~
In operation, a fresh processing liquid is introduced into chambers H and J (by pump or other means) and is fed from the distribution chambers H and J via the apertures 20, 21 and 22 and is distributed over the surfaces of the rollers as indicated by the arrows. At the same time, the two transport mechanisms i~ Rl and R2 are driven for rotation in the direction indicated by the arrows at the same surface speed. As the film F is intro-duced into the pinch between the main roller 1 and the auxiliar~
~i roller 2, the film F is advanced and is guided in succession ,i by the guide plate 15, the auxiliary roller 14 and the guide ~,' plate 16 as it passes between the main roller 11 and the aux-iliary roller 13. Finally, 'he film F is returned upward be-3. tween the main roller 1 and the auxiliary roller 3, thus complet-. ,3 ing the required processing cycle.
As shown in the drawing, the entire apparatus is ,~ immersed in a vessel (not shown) filled iwth the processing ' liquid W.
The loop-shaped projections 7 on the meshing surface 6 ', of the main rollers 1 and 11 do not lie flat against the surface ~ during operation. Since each row of the loop-shaped projections ~! 7 extends radially with respect to the center of the main roller 1, the processing liquid W is further agitated by the rotation of members 1 and 11. In the event any fine particles or agglo-~ merates should contact the main rollers 1 and 11, the meshed ',1 surface 6 readily catches and retains same deeply embedded in projections 7.
At pinch points between the main rollers 1 and 11 and ,1, the auxiliary rollers 2, 3, 12, 13 and 14, the loop-shaped pro-~ jections 7 of meshed surfaces 6 are compressed to some degree ~, against the emulsion coating on the film F so that the used ,, processing liquid is removed from the emulsion coating. Due to the non-wettability of the material of the projections 7, the spent liquid is immediately dispersed as the projections 7 ,. .. .
- _ 5 _ ~ 3 ' .
:; ~03~Z~3 rotate out of the pinch points. Thus the main rollers 1 and 11 continuously contact the film surface with a fresh liquid medium.
Further, since the loop-shaped projec~ions 7 of the ~ meshing surfaces 6 and 16 do not lie flat, the clearances between~
the main roller 1 and the auxiliary rollers 2 ana 3, and the il main roller 11 and the auxiliary rollers 12, 13 and 14 may be larger than usual and it is not necessary to finish these rollers with such a high degree of precision as required of the conven-`, tional rollers.
As clearly seen from the above descriptlon, the trans-port mechanism of the present invention offers the folloiwng advantages:
(1) The loop-shaped projections 7 serve to agitate i the processing liquid, insuring a homogeneous bath composi~
I tion and therebypreventspots or other damage to the surface of the film F;
(2) The loop-shaped projections 7, though lacking wettability, serve to remove fine particles and agglomerates -~
, from the processing liquid and to retain the particulate matter ~;
~ deeply embedded in the fabric, so that the processing liquid is kept clean and damage to the emulsion coating of the film F is '~ avoided;
- ~ (3) Since the loop-shaped projections 7 lack wetta-- ~ bility the spent process liquid is removed from the emulsion ~ coating and is immediately dispersed in the bath, whereby the processing efficiency is increased;
~03~2~3 BRI~,F DESCRIPTION OE' THE D:RAWING
The sole figure is a front elevational vie~J, in cross-` section, of a part of a con~inuous film ~rocessing apparatus proYided with two film transport mechanisms of the present invention. ~ ;
Referring to the drawing, a first film transport mechan-ism indicated by Rl includes a main roller 1 of a relatively ' large diameter and a pair of suxiliary rollers 2 and 3 of a I relatively smaller diameter disposed on opposite sides of the 0 '~ main roller 1 so that the axis connecting the center of each roller makés an angle S of 5 with respect to the horizontal, with both auxiliary rollers bieng in rotational contact with the main roller 1.
~1 , .
, Similarly, a second film transport mechanism, desig-ii nated R2, includes a main roller 11, and a pair of auxiliary I rollers 12 and 13. The construction and arrangement of this '~ transport mechanism is quite similar to that of the Rl device, except that transport device R2 is provided with an additional ,' auxiliary roller 14 which rotationally contacts the lowermost il portion of the main roller 11 and with guide plates 15 and 16 which serve to guide the travel of a photographic film F.
'` The entire circumferential surfaces of the main rollers A I l and 11 are covered with a suitable fabric such as the type ii t ~ ~4rk) , ~' used as the female VELCR0/tape (commonly called "B" tape) made ~l of nylon. The outer or meshing surface 6 of the cloth on the ~I surfaces of the main rollers 1 and 11 is formed of a plurality il of tufts 7 each being a loop of untwisted three strand yarn.
, Liquid hold tanks or chambers H and J are adapted to feed fresh processing solutions onto the surfaces of main roller 0 ~ 1 and 11, respectively, via their respective liquid feeding apertures 20, 21 and 22.
.
,. !
-. ~
103~
In operation, a fresh processing liquid is introduced into chambers H and J (by pump or other means) and is fed from the distribution chambers H and J via the apertures 20, 21 and 22 and is distributed over the surfaces of the rollers as indicated by the arrows. At the same time, the two transport mechanisms i~ Rl and R2 are driven for rotation in the direction indicated by the arrows at the same surface speed. As the film F is intro-duced into the pinch between the main roller 1 and the auxiliar~
~i roller 2, the film F is advanced and is guided in succession ,i by the guide plate 15, the auxiliary roller 14 and the guide ~,' plate 16 as it passes between the main roller 11 and the aux-iliary roller 13. Finally, 'he film F is returned upward be-3. tween the main roller 1 and the auxiliary roller 3, thus complet-. ,3 ing the required processing cycle.
As shown in the drawing, the entire apparatus is ,~ immersed in a vessel (not shown) filled iwth the processing ' liquid W.
The loop-shaped projections 7 on the meshing surface 6 ', of the main rollers 1 and 11 do not lie flat against the surface ~ during operation. Since each row of the loop-shaped projections ~! 7 extends radially with respect to the center of the main roller 1, the processing liquid W is further agitated by the rotation of members 1 and 11. In the event any fine particles or agglo-~ merates should contact the main rollers 1 and 11, the meshed ',1 surface 6 readily catches and retains same deeply embedded in projections 7.
At pinch points between the main rollers 1 and 11 and ,1, the auxiliary rollers 2, 3, 12, 13 and 14, the loop-shaped pro-~ jections 7 of meshed surfaces 6 are compressed to some degree ~, against the emulsion coating on the film F so that the used ,, processing liquid is removed from the emulsion coating. Due to the non-wettability of the material of the projections 7, the spent liquid is immediately dispersed as the projections 7 ,. .. .
- _ 5 _ ~ 3 ' .
:; ~03~Z~3 rotate out of the pinch points. Thus the main rollers 1 and 11 continuously contact the film surface with a fresh liquid medium.
Further, since the loop-shaped projec~ions 7 of the ~ meshing surfaces 6 and 16 do not lie flat, the clearances between~
the main roller 1 and the auxiliary rollers 2 ana 3, and the il main roller 11 and the auxiliary rollers 12, 13 and 14 may be larger than usual and it is not necessary to finish these rollers with such a high degree of precision as required of the conven-`, tional rollers.
As clearly seen from the above descriptlon, the trans-port mechanism of the present invention offers the folloiwng advantages:
(1) The loop-shaped projections 7 serve to agitate i the processing liquid, insuring a homogeneous bath composi~
I tion and therebypreventspots or other damage to the surface of the film F;
(2) The loop-shaped projections 7, though lacking wettability, serve to remove fine particles and agglomerates -~
, from the processing liquid and to retain the particulate matter ~;
~ deeply embedded in the fabric, so that the processing liquid is kept clean and damage to the emulsion coating of the film F is '~ avoided;
- ~ (3) Since the loop-shaped projections 7 lack wetta-- ~ bility the spent process liquid is removed from the emulsion ~ coating and is immediately dispersed in the bath, whereby the processing efficiency is increased;
(4) Due to the fact tha~ the loop-shaped projections of the fabric cover do not lie flat on the roller surface, even I when wet with a processing liquid, less precision is required in adjusting the gaps between the main roller and the auxiliary - rollers.
''''','', ~.
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(5) Due to the fact that the looo-shaped projections do not lie flat even when wetted, the smooth surfaces of each auxiliary roller are continuously cleaned and, therefore, the film being processed evenly contacts the rollers and uniform processing of the film can be attained.
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Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for the transport and processing of photographic film comprising:
a first rotatable cylindrical member having a fabric-covered surface, said surface being composed of a plurality of outwardly extending loop-shaped projections formed from a synthetic polyamide fiber which is non-wettable with respect to photographing processing fluids; and at least second and third rotatable cylindrical members disposed with their surfaces in contact with said fabric covered surface of said first cylindrical member, said second and third cylindrical members having diameters significantly smaller than that of said first cylindrical member, said first, second and third cylindrical roller members being arranged with their centers disposed along a common axis, the axis connecting the centers of said cylin-drical members making an angle of 5° with respect to the horizontal plane.
a first rotatable cylindrical member having a fabric-covered surface, said surface being composed of a plurality of outwardly extending loop-shaped projections formed from a synthetic polyamide fiber which is non-wettable with respect to photographing processing fluids; and at least second and third rotatable cylindrical members disposed with their surfaces in contact with said fabric covered surface of said first cylindrical member, said second and third cylindrical members having diameters significantly smaller than that of said first cylindrical member, said first, second and third cylindrical roller members being arranged with their centers disposed along a common axis, the axis connecting the centers of said cylin-drical members making an angle of 5° with respect to the horizontal plane.
2. The apparatus of claim 1 wherein said projections are formed from an untwisted three piece yarn,
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49084122A JPS5113241A (en) | 1974-07-24 | 1974-07-24 | Shashinkankozairyorenzokushorisochiniokeru isokenshorisokushinyorooraa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1038213A true CA1038213A (en) | 1978-09-12 |
Family
ID=13821701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA231,371A Expired CA1038213A (en) | 1974-07-24 | 1975-07-14 | Photographic processor with resilient fibers covering roller |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5113241A (en) |
| CA (1) | CA1038213A (en) |
| DE (1) | DE2531873B2 (en) |
| FR (1) | FR2280111A1 (en) |
| GB (1) | GB1520902A (en) |
| SE (1) | SE409377B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54181017U (en) * | 1978-06-12 | 1979-12-21 | ||
| JPS6023010B2 (en) * | 1979-08-14 | 1985-06-05 | 芳英 浅井 | Manufacturing method for fireproof double-layer pipe joints |
| US4422748A (en) * | 1981-06-15 | 1983-12-27 | U.S. Philips Corporation | Apparatus for transporting and processing photographic materials or the like |
| GB2139525A (en) * | 1983-05-11 | 1984-11-14 | Osborne Limited Michael | Processing photographic paper or film |
| GB9022779D0 (en) * | 1990-10-19 | 1990-12-05 | Kodak Ltd | Photographic processing apparatus |
| GB9106439D0 (en) * | 1991-03-26 | 1991-05-15 | Kodak Ltd | Photographic processing apparatus |
-
1974
- 1974-07-24 JP JP49084122A patent/JPS5113241A/en active Granted
-
1975
- 1975-07-02 SE SE7507594A patent/SE409377B/en not_active IP Right Cessation
- 1975-07-14 CA CA231,371A patent/CA1038213A/en not_active Expired
- 1975-07-17 DE DE19752531873 patent/DE2531873B2/en not_active Ceased
- 1975-07-18 GB GB30273/75A patent/GB1520902A/en not_active Expired
- 1975-07-23 FR FR7522950A patent/FR2280111A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2531873A1 (en) | 1976-02-05 |
| GB1520902A (en) | 1978-08-09 |
| SE7507594L (en) | 1976-01-26 |
| DE2531873B2 (en) | 1976-05-26 |
| SE409377B (en) | 1979-08-13 |
| JPS5442623B2 (en) | 1979-12-15 |
| FR2280111A1 (en) | 1976-02-20 |
| FR2280111B1 (en) | 1979-03-09 |
| JPS5113241A (en) | 1976-02-02 |
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