GB820757A - Improvements in frames for transparencies - Google Patents

Improvements in frames for transparencies

Info

Publication number
GB820757A
GB820757A GB16873/57A GB1687357A GB820757A GB 820757 A GB820757 A GB 820757A GB 16873/57 A GB16873/57 A GB 16873/57A GB 1687357 A GB1687357 A GB 1687357A GB 820757 A GB820757 A GB 820757A
Authority
GB
United Kingdom
Prior art keywords
film
transparency
transparencies
frames
mount
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
GB16873/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB820757A publication Critical patent/GB820757A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)

Abstract

820,757. Lantern slides. LIEBNITZ, E. May 28, 1957 [June 6. 1956], No. 16873/57. Class 98(2) [Also. in Group XV] In a transparency mount, the film is gripped between two members of the mount frame and the latter are recessed to accommodate two cover glasses without pressing on them. The surface of the rear cover glass in contact with the transparency may be ground. As shown, the perforated edges of the film 4 are located by abutments 5 between the frame members 1, 1<SP>1</SP>.
GB16873/57A 1956-06-06 1957-05-28 Improvements in frames for transparencies Expired GB820757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE820757X 1956-06-06

Publications (1)

Publication Number Publication Date
GB820757A true GB820757A (en) 1959-09-23

Family

ID=6738119

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16873/57A Expired GB820757A (en) 1956-06-06 1957-05-28 Improvements in frames for transparencies

Country Status (1)

Country Link
GB (1) GB820757A (en)

Similar Documents

Publication Publication Date Title
CA616340A (en) Spectacle frame
GB820757A (en) Improvements in frames for transparencies
GB747422A (en) Improvements relating to spectacles
JPS5650321A (en) Vacuum close adhesion printing machine
GB918886A (en) Improvements in or relating to mountings for diapositive film pictures
GB813315A (en) Improvements relating to spectacles
GB793480A (en) Improvements in or relating to holders for photographic transparencies
GB849485A (en) Improvements relating to viewing slides
GB862087A (en) Improvements in spectacle frames
ES233590U (en) Support for slides. (Machine-translation by Google Translate, not legally binding)
GB927797A (en) Improvements in mounts for transparencies
CA546508A (en) Film negative supporting frame
GB821262A (en) Improvements in or relating to devices for holding film transparencies
AU225604B2 (en) Improvements in or relating to spectacle frames
GB856798A (en) Improvements in or relating to slide mountings for pre-mounted transparencies
GB824834A (en) Improvements in or relating to finger plates for telephone dials
AU213715B2 (en) Improvements in blowing frame for tempering glass sheets
GB852698A (en) Improvements in and relating to magnifying devices
AU208751B2 (en) Improvements relating to rear projection screens
AU206176B2 (en) Improvements in or relating to filter attachements for photographic cameras especially cine-cameras
AU214280B2 (en) Improvements in or relating to high index glass elements
AU210055B2 (en) Improvements in or Relating to Film Projection Apparatus
CA543564A (en) Ornamental attachments for eyeglass frames
GB880663A (en) Improvements in or relating to mountings for transparencies
AU219767B2 (en) Improvements in or relating to optical lenses