UST883021I4 - Suspended negative contact printing - Google Patents

Suspended negative contact printing Download PDF

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Publication number
UST883021I4
UST883021I4 US883021DH UST883021I4 US T883021 I4 UST883021 I4 US T883021I4 US 883021D H US883021D H US 883021DH US T883021 I4 UST883021 I4 US T883021I4
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US
United States
Prior art keywords
negative
print material
contact printing
negative contact
suspended
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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.)
Pending
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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.)
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Publication date
Application filed filed Critical
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Publication of UST883021I4 publication Critical patent/UST883021I4/en
Pending legal-status Critical Current

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    • 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
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material

Definitions

  • Photographic contact prints without Newton rings, and with minimum dirt defects, are produced by tensioning (16, -18) a negative (10) to be printed between supports (12, 14).
  • the photographic print material (20) on which the copy is to be made is held above the negative (10).
  • a curved pressure pad or shoe (26) is applied to bow the negative (10) and print material (20) intimately together. While such bowing takes place, a lamp (28) is excited to expose the print material (20) through the negative (10).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

PHOTOGRAPHIC CONTACT PRINTS, WITHOUT NEWTON RINGS, AND WITH MINIMUM DIRT DEFECTS, ARE PRODUCED BY TENSIONING (16, 18) A NEGATIVE (10) TO BE PRINTED BETWEEN SUPPORTS (12, 14). THE PHOTOGRAPHIC PRINT MATERIAL (20) ON WHICH THE COPY IS TO BE MADE IS HELD ABOVE THE NEGATIVE (10). AND A CURVED PRESSURE PAD OR SHOE (26) IS APPLIED TO BOW THE NEGATIVE (10) AND PRINT MATERIAL (20) INTIMATELY TOGETHER. WHILE SUCH BOWING TAKES PLACE, A LAMP (28) IS EXCITED TO EXPOSE THE PRINT MATERIAL (20) THROUGH THE NEGATIVE (10).

Description

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED FEBRUARY 23, 1971 88 i O.Gr. 1323 T883,021 SUSPENDED NEGATIVE CONTACT PRINTING James V. Nealon, 208 Winona Blvd., Rochester, N.Y. 14617 Filed Oct. 13, 1969, Ser. No. 865,586 Int. Cl. G03b 27/02 US. 'Cl. 355-78 1 Sheet Drawing. 4 Pages Specification Photographic contact prints, without Newton rings, and with minimum dirt defects, are produced by tensioning (16, -18) a negative (10) to be printed between supports (12, 14). The photographic print material (20) on which the copy is to be made is held above the negative (10). And a curved pressure pad or shoe (26) is applied to bow the negative (10) and print material (20) intimately together. While such bowing takes place, a lamp (28) is excited to expose the print material (20) through the negative (10).
Feb. 23, 1971 J- v. NEALON SUSPENDED NEGATIVE CONTACT PRINTING Filed Oct. 13, 1969 FIG ' llm' ,2
JAMES IVEALO/V I INVENTOR.
v BY
A TTOR/VEYS
US883021D 1969-10-13 1969-10-13 Suspended negative contact printing Pending UST883021I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86558669A 1969-10-13 1969-10-13

Publications (1)

Publication Number Publication Date
UST883021I4 true UST883021I4 (en) 1971-02-23

Family

ID=25345832

Family Applications (1)

Application Number Title Priority Date Filing Date
US883021D Pending UST883021I4 (en) 1969-10-13 1969-10-13 Suspended negative contact printing

Country Status (2)

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US (1) UST883021I4 (en)
FR (1) FR2025355A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908652A (en) * 1987-06-08 1990-03-13 Brother Kogyo Kabushiki Kaisha Image recording apparatus having upper and lower sections separable from each other at medium exposing path

Also Published As

Publication number Publication date
FR2025355A1 (en) 1970-09-11

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