GB498009A - Improvements relating to a sensitive-paper holder for use with photographic printers - Google Patents

Improvements relating to a sensitive-paper holder for use with photographic printers

Info

Publication number
GB498009A
GB498009A GB1801537A GB1801537A GB498009A GB 498009 A GB498009 A GB 498009A GB 1801537 A GB1801537 A GB 1801537A GB 1801537 A GB1801537 A GB 1801537A GB 498009 A GB498009 A GB 498009A
Authority
GB
United Kingdom
Prior art keywords
platen
sensitive
pins
paper holder
engaging
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
GB1801537A
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.)
ALFRED EDWARD LEE
CECIL EDWARD GYATT
Kodak Ltd
Original Assignee
ALFRED EDWARD LEE
CECIL EDWARD GYATT
Kodak 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 ALFRED EDWARD LEE, CECIL EDWARD GYATT, Kodak Ltd filed Critical ALFRED EDWARD LEE
Priority to GB1801537A priority Critical patent/GB498009A/en
Publication of GB498009A publication Critical patent/GB498009A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
    • G03B27/582—Baseboards, easels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

498,009. Projection-printing apparatus. KODAK, Ltd., GYATT, C. E., and LEE, A. E. June 29, 1937, No. 18015. [Class 98 (i)] A sensitive-paper holder for use with projection enlargers comprises a metal base 1 slidably engaging a tray 4 for a series of masking plates 5 and having pivoted on it a platen 9 having grooves 13 for receiving one of the masks 5. Means for locating and clamping the sensitive paper in position on the base 1 comprise a fixed pin 24 and headed pins 16 moved upwards when the platen 9 is raised by means of a cam 22 integral with the platen engaging one of two plates 20 fixed on a rockable shaft 21 and engaging the pins 16, and moved downwards by the springs 18 when the platen is lowered. Apertures 23 are provided in each mask and in the under surface of the platen 9 to receive the pins.
GB1801537A 1937-06-29 1937-06-29 Improvements relating to a sensitive-paper holder for use with photographic printers Expired GB498009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1801537A GB498009A (en) 1937-06-29 1937-06-29 Improvements relating to a sensitive-paper holder for use with photographic printers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1801537A GB498009A (en) 1937-06-29 1937-06-29 Improvements relating to a sensitive-paper holder for use with photographic printers

Publications (1)

Publication Number Publication Date
GB498009A true GB498009A (en) 1938-12-29

Family

ID=10105167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1801537A Expired GB498009A (en) 1937-06-29 1937-06-29 Improvements relating to a sensitive-paper holder for use with photographic printers

Country Status (1)

Country Link
GB (1) GB498009A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432040A (en) * 1945-04-03 1947-12-02 Raiff Andrew Photographic enlargement printing frame
US2454032A (en) * 1947-10-29 1948-11-16 Jr William A Boulais Photographic border device
US2495510A (en) * 1944-04-05 1950-01-24 Levallois Optique Et Prec Enlarging easel supporting means
US3165970A (en) * 1962-04-24 1965-01-19 Gerard J Pelletier Photographic projection easel
US4448520A (en) * 1982-03-22 1984-05-15 Achtman Myron B Photographic printing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495510A (en) * 1944-04-05 1950-01-24 Levallois Optique Et Prec Enlarging easel supporting means
US2432040A (en) * 1945-04-03 1947-12-02 Raiff Andrew Photographic enlargement printing frame
US2454032A (en) * 1947-10-29 1948-11-16 Jr William A Boulais Photographic border device
US3165970A (en) * 1962-04-24 1965-01-19 Gerard J Pelletier Photographic projection easel
US4448520A (en) * 1982-03-22 1984-05-15 Achtman Myron B Photographic printing device

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