GB660601A - Improvements in or relating to holders for photographic negatives - Google Patents

Improvements in or relating to holders for photographic negatives

Info

Publication number
GB660601A
GB660601A GB2859748A GB2859748A GB660601A GB 660601 A GB660601 A GB 660601A GB 2859748 A GB2859748 A GB 2859748A GB 2859748 A GB2859748 A GB 2859748A GB 660601 A GB660601 A GB 660601A
Authority
GB
United Kingdom
Prior art keywords
frame
annular member
transparency
ring mounting
carried
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
GB2859748A
Inventor
George Edward Messenger
Harold Edwin Laws
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.)
HUNTER PENROSE Ltd
Original Assignee
HUNTER PENROSE 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 HUNTER PENROSE Ltd filed Critical HUNTER PENROSE Ltd
Priority to GB2859748A priority Critical patent/GB660601A/en
Publication of GB660601A publication Critical patent/GB660601A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B27/00Photographic printing apparatus
    • G03B27/32Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52Details
    • G03B27/62Holders for the original
    • G03B27/6271Holders for the original in enlargers
    • G03B27/6278Handling single frame negatives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

660,601. Transparency holders. HUNTERPENROSE, Ltd. Nov. 3, 1949 [Nov. 3, 1948], No. 28597/48. Class 98 (i). In a transparency holder which comprises a ring mounting within which an annular member is set for rotary adjustment relative thereto, a base frame adjustable across the annular member in one direction and a carrier frame for the transparency slidable over the base frame in an orthogonal direction, the annular member has a lug which overlies the ring mounting and the ring mounting is apertured at intervals for the reception of a stop carried by said lug. The transparency holder shown in Fig. 1 forms part of a camera attachment which is described and claimed in Specification 660,600 and includes a hollow arm 1, which is slotted at 11 and has spaced parallel flats 12 thereon supporting rollers 14 carried by a block 13 to which is attached a ring mounting 35 provided with a rebate in which an annular member 37 is seated for rotational adjustment by screws 38 which thread into the ring 35 and the heads of which overlap the member 37. Seated in tapped holes in member 37 are the threaded ends of pins 43, which pass through a frame 39 and the shanks of which are encircled by springs so as to space the frame 39 from the annular member 37. The heads 41 of screws carried by frame 39 hold therein a base frame 40, which is adjustable in one direction over the frame 39 by a pin and boss arrangement 45, 44. Frame 40 supports a frame 46 carrying a transparency and a glass plate 51 by means of studs 47, the frame 46 being adjustable in a direction at right-angles to the direction of movement of the base frame 40 by a pin and boss arrangement 49, 48. The carrier frame 46 carries spring-loaded studs for engagement with the sides of the glass plate 51. A lug 53 is carried by the annular member 37 and is provided with a spring stop 54 which, on rotation of member 37, is engageable with any one of several apertures 55 in the,ring mounting 35. Specification 660,602, [Group XI], is referred to in the Provisional Specification.
GB2859748A 1948-11-03 1948-11-03 Improvements in or relating to holders for photographic negatives Expired GB660601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2859748A GB660601A (en) 1948-11-03 1948-11-03 Improvements in or relating to holders for photographic negatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2859748A GB660601A (en) 1948-11-03 1948-11-03 Improvements in or relating to holders for photographic negatives

Publications (1)

Publication Number Publication Date
GB660601A true GB660601A (en) 1951-11-07

Family

ID=10278121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2859748A Expired GB660601A (en) 1948-11-03 1948-11-03 Improvements in or relating to holders for photographic negatives

Country Status (1)

Country Link
GB (1) GB660601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952185A (en) * 1956-09-21 1960-09-13 Charles L Palmer Easel and horizontal projector photographic apparatus
FR2568694A1 (en) * 1984-08-03 1986-02-07 Scanner Offset Service Multi-purpose enlarger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952185A (en) * 1956-09-21 1960-09-13 Charles L Palmer Easel and horizontal projector photographic apparatus
FR2568694A1 (en) * 1984-08-03 1986-02-07 Scanner Offset Service Multi-purpose enlarger

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