US2376183A - Photoprinting mask - Google Patents

Photoprinting mask Download PDF

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Publication number
US2376183A
US2376183A US535082A US53508244A US2376183A US 2376183 A US2376183 A US 2376183A US 535082 A US535082 A US 535082A US 53508244 A US53508244 A US 53508244A US 2376183 A US2376183 A US 2376183A
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United States
Prior art keywords
mask
photoprinting
negative
printing
contact paper
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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.)
Expired - Lifetime
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US535082A
Inventor
Stephen E Pochatko
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Individual
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Priority to US535082A priority Critical patent/US2376183A/en
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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
    • G03B27/28—Edge-masking devices

Definitions

  • This invention appertains to new and useful improvements in frames or masks used in printing photographs.
  • the principal object of the present invention is to provide a mask which in use will produce straight borders on prints with which the same is-used.
  • Another important object of the invention is to provide a mask of the character stated constructed in such a manner as to hold a print from sliding or displacing in any way.
  • Another important object of the invention is to provide. a printing mask for printing photographs which includes a back against which the contact paper is first placed and thereby protect against scratching or other damage.
  • Figure 1 represents a top plan view showing the back side of the mask.
  • Figure 2 is a top plan View showing the front side of the mask.
  • FIG. 3 is an enlarged fragmentary detailed sectional view.
  • the mask includes a frame 5 and a back 6.
  • the frame consists of a sheet of suitable material having a rectangular or other shaped exposure opening I therein and having the longitudinal edge portions thereof disposed inwardly to provide flanges 8, 8 and these flanges define a vguideway 9 for the back 6.
  • One end of the sheet is folded inwardly to define a flange l0 against which one end of the back 6 can abut.
  • the back 6 can be slid outwardly and against this can be placed contact paper and on the outside a negative (not shown).
  • contact paper and negative can then be slid inwardly of the mask for the purpose of printing the picture and in this position, the negative will be on the outside and the contact paper protected between the negative and the back 6. Further, the marginal portions a, b, c and d will define on the resulting picture a straight border, which is at present difficult to produce with the equipment now generally used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

May 15, 1945.
s.- E. POCHATKO PHOTOPRINTING MASK Filed May 11, 1944 Sup/15w E OC/fr? TKO,
v Mid WW ZQM Patented May 15, 1 945 'UNITED STATES PATENT OFFICE PHOTOPRIN TING MASK Stephen E. Pochatko, Niagara Falls, N. Y.
6 Application May 11, 1944, Serial No. 535,082
1 Claim.
This invention appertains to new and useful improvements in frames or masks used in printing photographs.
The principal object of the present invention is to provide a mask which in use will produce straight borders on prints with which the same is-used.
Another important object of the invention is to provide a mask of the character stated constructed in such a manner as to hold a print from sliding or displacing in any way.
Another important object of the invention is to provide. a printing mask for printing photographs which includes a back against which the contact paper is first placed and thereby protect against scratching or other damage.
Other objects and advantages of the invention will become apparent to the reader of the following description.
In the drawing:
Figure 1 represents a top plan view showing the back side of the mask.
Figure 2 is a top plan View showing the front side of the mask.
Figure 3 is an enlarged fragmentary detailed sectional view.
Referring to the drawing wherein like numerals designate like parts, it can be seen that the mask includes a frame 5 and a back 6.
The frame consists of a sheet of suitable material having a rectangular or other shaped exposure opening I therein and having the longitudinal edge portions thereof disposed inwardly to provide flanges 8, 8 and these flanges define a vguideway 9 for the back 6.
One end of the sheet is folded inwardly to define a flange l0 against which one end of the back 6 can abut.
Obviously, the back 6 can be slid outwardly and against this can be placed contact paper and on the outside a negative (not shown). The back,
contact paper and negative can then be slid inwardly of the mask for the purpose of printing the picture and in this position, the negative will be on the outside and the contact paper protected between the negative and the back 6. Further, the marginal portions a, b, c and d will define on the resulting picture a straight border, which is at present difficult to produce with the equipment now generally used.
While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.
invention, what is STEPHEN E. POCHATKO.
US535082A 1944-05-11 1944-05-11 Photoprinting mask Expired - Lifetime US2376183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US535082A US2376183A (en) 1944-05-11 1944-05-11 Photoprinting mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US535082A US2376183A (en) 1944-05-11 1944-05-11 Photoprinting mask

Publications (1)

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US2376183A true US2376183A (en) 1945-05-15

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US535082A Expired - Lifetime US2376183A (en) 1944-05-11 1944-05-11 Photoprinting mask

Country Status (1)

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