US58516A - Improvement in engraving copper, sgc - Google Patents

Improvement in engraving copper, sgc Download PDF

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Publication number
US58516A
US58516A US58516DA US58516A US 58516 A US58516 A US 58516A US 58516D A US58516D A US 58516DA US 58516 A US58516 A US 58516A
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improvement
sgc
copper
plate
white
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping

Definitions

  • VICTORIA QUARRE WEDEKIND, OF PHILADELPHIA, PENNSYLVANIA.
  • the artist or draftsman can make his design on paper and burnish it by the ordinary process, the lead-pencil marks of his picture upon the white surface of the plate, or it would be better and quicker for him, with ordinary engravers tools, to trace his design upon the plate, taking care not to cut into the copper, because all parts of the plate he uncovers of its white surface will produce the relief of his picture, while the entire surface remaining covered with white will scoop away between the lines forming the picture.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Description

IINITEDSTATES PATENT OFFIoE.
VICTORIA QUARRE WEDEKIND, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN ENGRAVING COPPER, 80C.
Specification forming part of Letters Patent No. 58,516, dated October 2, 1866.
To all whom it may concern.-
Be it known that I, VICTORIA QUARRE WEDEKIND, of the city of Philadelphia and State of Pennsylvania, have invented a new and Improved Method of Producing Copper or other Metal Plates engraved in relief, with- I take German white lead, or fine white lead,
finely sifted, and grind in water, and take the finest clear glue, dissolve it in water, and
when moderately warm I mix carefully a small part of it with the German enamel white. I use for this operation a fine camels-hair brush, and whiten the entire surface of the lightlyheated copper plate by passing with a camelshair brush from right to left and from top to bottom till I bring about a perfectly even and' smooth surface. The artist or draftsman can make his design on paper and burnish it by the ordinary process, the lead-pencil marks of his picture upon the white surface of the plate, or it would be better and quicker for him, with ordinary engravers tools, to trace his design upon the plate, taking care not to cut into the copper, because all parts of the plate he uncovers of its white surface will produce the relief of his picture, while the entire surface remaining covered with white will scoop away between the lines forming the picture.
What remains to be done is merely the work of an ordinary copper-plate engraver. Take the ordinary varnish of plate-engravers, cover the entire surface of the plate with it, and keep the plate moderately warm. The varnish being dry, line the borders with wax and pour asmuch nitric acid at five degrees as your basin will allow. In a short time that part of the varnished surface where white and varnish are combined will break oif in small parcels. Stir continually and lightly with a brush till the whole will be removed, then empty your basin and let it dry a few minutes, then pour in nitric acid at ten degrees, taking care to remove the globules as soon as formed, and continue to renew the acid at ten degrees till you bring about the required deepness, and the minute details of the design will stand in bold relief.
Wash the plate with turpentine, and if in some places of the design, by inexperience ot' the draftsman, a large amount of space and deepness is required, such places can be easily deepened with engraver-s tools.
Finally, print any number by the ordinary printing-press.
Having thus described my improvement, what I claim as my invention, and desire to secure by Letters Patent, is-
.nish, and treating it with nitric acid, substantially as above described.
VICTORIA QUARRE WEDEKIN D.
Witnesses:
' Gno. BUoKLnY, H. A. KIMBALL.
US58516D Improvement in engraving copper, sgc Expired - Lifetime US58516A (en)

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US58516A true US58516A (en) 1866-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485926A (en) * 1945-02-20 1949-10-25 Radio Electr Soc Fr Sealed demountable joint for vacuum tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485926A (en) * 1945-02-20 1949-10-25 Radio Electr Soc Fr Sealed demountable joint for vacuum tubes

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