US3763759A - Processing of photographic roll film - Google Patents

Processing of photographic roll film Download PDF

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Publication number
US3763759A
US3763759A US00261557A US3763759DA US3763759A US 3763759 A US3763759 A US 3763759A US 00261557 A US00261557 A US 00261557A US 3763759D A US3763759D A US 3763759DA US 3763759 A US3763759 A US 3763759A
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US
United States
Prior art keywords
band
film
face
reel
rods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00261557A
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English (en)
Inventor
R Ramsdale
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.)
ALEX L CLARK LTD CA
CLARK ALEX Ltd
Original Assignee
CLARK ALEX Ltd
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 CLARK ALEX Ltd filed Critical CLARK ALEX Ltd
Application granted granted Critical
Publication of US3763759A publication Critical patent/US3763759A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/908—Fluid treatment or handling

Definitions

  • ABSTRACT A method and device for processing photographic roll film, in which the film is carried by a flexible band which is wound spirally on a squirrel cage reel and releasably fixed at each end to the reel.
  • the present invention relates to a reel for use in processing photographic roll film.
  • Reels for processing photographic film are used in processing tanks where the film is wound peripherally on a drum and the drum is mounted coaxially on a shaft whereby the film passes through liquid chemical lying in the bottom portion of the tank as the shaft is rotated.
  • To wind the roll film on the drum it is necessary to provide guideways the width of the film and consequently a separate reel must be provided for each size of film.
  • FIG. 1 is a perspective view of a reel having a carrier band mounted on it;
  • FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. I;
  • FIG. 3 is a view similar to FIG. 2 showing an alternate embodiment of the invention.
  • FIGS. 1 and 2 consists of a reel of squirrel cage construction having a pair of spaced, circular end members 12 having arcuate openings 13 and intercon-nected by a plurality of parallel, spaced rods 14 located on a cylindrical locus. Adjacent one end member 12, one of rods 14 carries a pin 18a projecting laterally outward from the rod, and adjacent the other end member 12 a second pin 18b projects outwardly from one of rods 14.
  • An aperture 20 at the centre of each end member 12 is shaped to receive a coaxial shaft (not shown) with a radial slot 22 to enable reel 10 to be keyed onto the shaft.
  • Band 30 is of flexible material enabling it to be wound onto reel 10. As seen in cross-section in FIG. 2, band 30 is flat on its lower face 34 while the upper face of the band is concave to form a trough 35 with an upstanding rib 36 along each side edge of the band. Spaced slots 40 are located along the centre line of the band, except at each end of the band which carries a row of apertures 42.
  • band 30 In the operation of the device a roll of film which is to be processed is laid on band 30, the proper width of band being chosen for the purpose. As seen in FIG. 2, a space 52 is defined beneath film 50 because of the transverse rigidity of the film and concavity of trough 35 of band 30, and access to space 52 is provided by slots 40.
  • Band 30 is then mounted on reel 10 by engaging pin 18a in one of apertures 42 at one end 54 of the band and the band is wound spirally around the cylindrical locus formed by rods 10 as indicated in FIG. 1.
  • Band 30 is of a length such that its unattached end 56 will terminate adjacent pin 18b at the other end of the reel, which may be made to engage apertures 42 at end 56 of the bands. Both pins 18 are located on their respective rods 14 a distance from end members 12 sufficient to allow different widths of band 30 or 60 to be engaged by the pins.
  • bands 60 are provided which are the same as band 30 except that a longitudinal groove 62 is provided along each side edge of lower face 34 of each band 60 whereby the bands may nest one on another by fitting upstanding ribs 36 of a lower band 60a into grooves 62 in a next higher band b.
  • Bands 30 or 60 may be made of any suitable material which is form retaining and flexible and is inert to the liquid chemicals used in processing the roll film. Polyvinylchloride is one example of such a material It will be appreciated that, by using device of the present invention, band 30 or band 60a may be mounted on reel 10 in the light and it is then simple to load roll film 50 in the dark and, in the alternate embodiment of tiered bands, to wind band 60b onto the reel in the dark. Bands 30 or 60, of different widths to accommodate different sizes of roll film, may conveniently be stored in roll form in a dispenser and cut to the proper length for use on reel 10, in which case rows of holes 42 would be located in the bands at convenient lengths.
  • a device for processing photographic roll film com-prising:
  • an elongated band of flexible material constructed to receive said film laid longitudinally on one face of the band and to provide access of liquid to each side of the film when located on the band;
  • a reel having a spaced pair of end members and a plurality of rods mounted in parallel, spaced relationship on the end means and arranged to form a cylindrical cage;
  • a device as claimed in claim I in which said one face of the band is transversely concave to form a trough to receive the film therein, and spaced slots located along the trough of the convex face.
  • a device as claimed in claim I in which one end of the band is attachable to one of the rods adjacent one of the end members and the other end of the band is attachable to one of the rods adjacent the other end member.
  • attachment means comprises a pair of pins each fixed to one of the rods and projecting outwardly therefrom one adjacent each of the end members, and a row of apertures located longitudinally along the strip adjacent each end thereof to receive said pins.
  • a device as claimed in claim 1 including a pair of parallel upstanding ribs located along each side of said one face of the band, and a pair of parallel grooves located along each side of the other face of the band to receive the ribs of a coextensive second bond and nest thereon.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US00261557A 1972-06-05 1972-06-05 Processing of photographic roll film Expired - Lifetime US3763759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26155772A 1972-06-05 1972-06-05

Publications (1)

Publication Number Publication Date
US3763759A true US3763759A (en) 1973-10-09

Family

ID=22993850

Family Applications (1)

Application Number Title Priority Date Filing Date
US00261557A Expired - Lifetime US3763759A (en) 1972-06-05 1972-06-05 Processing of photographic roll film

Country Status (5)

Country Link
US (1) US3763759A (enrdf_load_html_response)
JP (1) JPS4944747A (enrdf_load_html_response)
CA (1) CA1000096A (enrdf_load_html_response)
DE (1) DE2326374A1 (enrdf_load_html_response)
GB (1) GB1385837A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443383B1 (en) * 2000-10-31 2002-09-03 James Stasny Method and apparatus for umbilical floatation storage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US998182A (en) * 1910-09-20 1911-07-18 Hite Wickizer Film-holder.
US1979106A (en) * 1932-05-25 1934-10-30 Henderson Alexander Stephen Apparatus for treating cinematograph films
US3041953A (en) * 1958-11-24 1962-07-03 Mervin E Fulton Film developing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US998182A (en) * 1910-09-20 1911-07-18 Hite Wickizer Film-holder.
US1979106A (en) * 1932-05-25 1934-10-30 Henderson Alexander Stephen Apparatus for treating cinematograph films
US3041953A (en) * 1958-11-24 1962-07-03 Mervin E Fulton Film developing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443383B1 (en) * 2000-10-31 2002-09-03 James Stasny Method and apparatus for umbilical floatation storage

Also Published As

Publication number Publication date
CA1000096A (en) 1976-11-23
JPS4944747A (enrdf_load_html_response) 1974-04-27
GB1385837A (en) 1975-03-05
DE2326374A1 (de) 1973-12-20

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