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GB586617A - Improvements in apparatus for developing photographic sensitised layers - Google Patents

Improvements in apparatus for developing photographic sensitised layers

Info

Publication number
GB586617A
GB586617A GB2156544A GB2156544A GB586617A GB 586617 A GB586617 A GB 586617A GB 2156544 A GB2156544 A GB 2156544A GB 2156544 A GB2156544 A GB 2156544A GB 586617 A GB586617 A GB 586617A
Authority
GB
United Kingdom
Prior art keywords
cylinder
perforated
endless
band
heater
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
GB2156544A
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.)
FRANK GEORGE FAUX
Hall Harding Ltd
Original Assignee
FRANK GEORGE FAUX
Hall Harding 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 FRANK GEORGE FAUX, Hall Harding Ltd filed Critical FRANK GEORGE FAUX
Priority to GB2156544A priority Critical patent/GB586617A/en
Publication of GB586617A publication Critical patent/GB586617A/en
Expired legal-status Critical Current

Links

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
    • G03D7/00—Gas processing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

586,617. Photographic developing apparatus. HALL, HARDING, Ltd., BUNGAY, J. A., and FAUX, F. G. Nov. 3, 1944, No. 21565. [Class 98 (ii)] Photographic developing apparatus comprises a perforated hollow cylinder rotating in contact with an endless travelling band arranged to wrap round the major portion of the cylinder and effectively cover the perforations in that portion of the cylinder, with stationary means mounted in the interior of the cylinder for closing the lower portion and provided with pads or doctors for sealing that portion of the perforated cylinder not covered by the travelling band. As shown, the hollow perforated cylinder 1 mounted in bearings in the body 4 rotates in contact with the endless travelling band 2 tensioned on the rollers 3. A stationary semicylindrical trough 7 provided with sealing pads 8 seals the uncovered part of the cylinder. Ammonia solution may be vaporized in the cylinder 1 by the heater 6, or may be evaporated in an external unit and fed into the cylinder, the uncovered part of the cylinder being then sealed internally by any suitable device. The cylinder and endless band may be driven at different peripheral speeds to prevent uneven distribution of the gas. The heater 6 accelerates development and dries the drum surface at each revolution.
GB2156544A 1944-11-03 1944-11-03 Improvements in apparatus for developing photographic sensitised layers Expired GB586617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2156544A GB586617A (en) 1944-11-03 1944-11-03 Improvements in apparatus for developing photographic sensitised layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2156544A GB586617A (en) 1944-11-03 1944-11-03 Improvements in apparatus for developing photographic sensitised layers

Publications (1)

Publication Number Publication Date
GB586617A true GB586617A (en) 1947-03-25

Family

ID=10165041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2156544A Expired GB586617A (en) 1944-11-03 1944-11-03 Improvements in apparatus for developing photographic sensitised layers

Country Status (1)

Country Link
GB (1) GB586617A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475809A (en) * 1945-07-30 1949-07-12 Paragon Revolute Corp Gas developing machine for photosensitive sheets having automatic gas delivery
US2542381A (en) * 1949-06-07 1951-02-20 Cellophane Sa Device for developing photoreproductive papers
US2625866A (en) * 1949-08-05 1953-01-20 Pease C F Co Print developer
US2761365A (en) * 1951-09-11 1956-09-04 Ozalid Co Ltd Apparatus for developing photographic sensitised material
WO1980002465A1 (en) * 1979-05-07 1980-11-13 R Hewelt Method and arrangement for eliminating ammonia vapors from developed diazo copy material
US4441803A (en) * 1982-06-01 1984-04-10 Northwest Blueprint & Supply Co. Diazo copy machine with ammonia fume eliminator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475809A (en) * 1945-07-30 1949-07-12 Paragon Revolute Corp Gas developing machine for photosensitive sheets having automatic gas delivery
US2542381A (en) * 1949-06-07 1951-02-20 Cellophane Sa Device for developing photoreproductive papers
US2625866A (en) * 1949-08-05 1953-01-20 Pease C F Co Print developer
US2761365A (en) * 1951-09-11 1956-09-04 Ozalid Co Ltd Apparatus for developing photographic sensitised material
WO1980002465A1 (en) * 1979-05-07 1980-11-13 R Hewelt Method and arrangement for eliminating ammonia vapors from developed diazo copy material
US4273435A (en) * 1979-05-07 1981-06-16 Robert K. Hewelt Method and arrangement for eliminating ammonia vapors from developed diazo copy material
US4441803A (en) * 1982-06-01 1984-04-10 Northwest Blueprint & Supply Co. Diazo copy machine with ammonia fume eliminator

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