US2051826A - Method of and apparatus for sensitizing paper - Google Patents

Method of and apparatus for sensitizing paper Download PDF

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Publication number
US2051826A
US2051826A US713930A US71393034A US2051826A US 2051826 A US2051826 A US 2051826A US 713930 A US713930 A US 713930A US 71393034 A US71393034 A US 71393034A US 2051826 A US2051826 A US 2051826A
Authority
US
United States
Prior art keywords
tissue
plate
roller
paper
sensitizing
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 - Lifetime
Application number
US713930A
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English (en)
Inventor
Schuyler B Davenport
Savio Alfred
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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
Priority to BE416996D priority Critical patent/BE416996A/xx
Application filed by Individual filed Critical Individual
Priority to US713930A priority patent/US2051826A/en
Priority to GB21713/36A priority patent/GB476267A/en
Application granted granted Critical
Publication of US2051826A publication Critical patent/US2051826A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G03F7/004—Photosensitive materials
    • G03F7/04—Chromates

Definitions

  • the timing of the sensitizing machine can be so arranged that the gelatine coating of the carbon tissue becomes softened by the bichromate sensitizing solution so that the best results are attainable as the carbon tissue and the ferrotype plate are conveyed through the machine, for as the bichromate solution is delivered 5 in a flowable state between the ferrotype plate and the gelatine coating of thejcarbon tissue at a suitable temperature, ithas a tendency to soften the gelatine coating of the carbon tissue in order that it willladhere to the ferrotype plate.
  • the carbon tissue after the foregoing treatment is permitted to dry in order that it may be removed from the ferrotype plate and'the gelatine coating of the carbon tissue which was of a dull finish before it was sensitized now has a highly glazed surface finish, which latter condition is the ideal state for satisfactory results in its use, and since the sensitized solution of each carbon tissue is a previously'unused solution, the sensitized solution is clean and free of foreign elements or substances.
  • Figure 2 illustrates a view in elevation of one end thereof 2
  • Figure 3 illustrates a view in elevation of the other end thereof;
  • Figure 4 illustrates a view in front elevation;
  • Figure 5 illustrates an enlarged detail sectional view of fragments of the machine on approximately the line 5-5 of Figure 1 with those parts 30 of the machine beyond the section line omitted.
  • i0 denotes a suitable frame in which a motor II is mounted, the said motor being preferably electrically driven and supplied with current through an appropriate conductor 35 I2.
  • a pinion I3 is in mesh with a gear wheel M on a shaft IS, the said shaft being joumaled in the frame in any appropriate way and having on its end opposite the gear wheel ll a pinion Hi meshing with a gear wheel II on a shaft l8.
  • the shaft 40 I8 also has a pinion l9 meshing with the gear wheel 20 on a shaft 2
  • Brackets 23 and 24 extend rearwardly from the frame and they are provided with a plurality of apertures such as 25 in which a pivot 26 applied to each bracket may be adjusted.
  • An arm 21 50 having a slot-28 is applied to each pivot and a nut 29 threaded on a pivot serves to frictionaliy engage the arm and hold it in different positions of adjustment.
  • the paper in its unsensitized state but having the gelatine coating is curled in a roll and as an initial step in the operation, one end of the paper is attached to the front end of the plateby adhesive tape or some other appropriate means and the advanced end of the plate and paper are applied to the drum at the'top thereof.
  • a roller 32 engages the drum and the plate and paper are gripped therebetween by imparting to the drum an intial turning movement sumcient to start the plate and paper between the drum and roller 32 and the remainder thereof rests in the trough 33 which is carried by suitably supported arms such as 34.
  • Arms 35 and 36 are .oscillatively mounted on pivots carried by the brackets 23 and 24 and a shaft 31 is journaled in the said arms 35 and 36.
  • the roller 32 is mounted on the shaft 37 and extensions 38 of the shaft constitute hand grasps by which the arms 35 and 36 are forced outwardly so that the periphery of the roller 32 is out of engagement with the drum for since the roller is preferably rubber jacketed, the Weight of the roller will tend to cause the periph-' cry of the roller to become fiat if it is allowed to rest onthe drum when not in operation.
  • the shaft, I5 is provided with a hand wheel 44 and by manually operating the hand wheel; the drum is turned and the plate particular requirements.
  • a tank as for holding sensitizing solution is supported on the post or standard 41 in a'plane. above the machine so that the sensitizing solution will fiow by gravity to the plate.
  • the tank is provided with a faucet 48 to which a hose 49 is connected, the said hose'having a nozzle 50 so that by manipulating the nozzle, the sensitizing solution may be discharged on the plate preferably at the junction of the plate and paper as the two are being brought into superimposed relation by the action of the drum and roller.
  • the paper may be repeated with each sheet, it being understood that the sheets are of certain Well known commercial size.
  • the plate After a plate and the paper have been passed between the drum and theroller, the plate is forced out on the table 30 from whence it can be removed.
  • the inclination of the table can be regulated by the adjustment of the arms 21 which adjustment will compensate for the flowable character of the sensitizing solution and prevent its 40 and projects beyond said standards to formstops 52 which are engaged by the arms 42 b which the said arms are held elevated.
  • a holding rod 53 is carried by arms 54 pivote on the standards 39 and 40, the said holding rod being movable into cooperative relation with the roller .32 to guide the paper as it is being moved when the roller is rotated.
  • the arms 54" may be held by springs such as 55 which are conventionally shown.
  • the method of sensitizing roto-gravure carbon tissue consisting in attaching one end of a carbon tissue to an end of a ferrotype plate, interposing the superimposed plate and tissue between rollers, driving the rollers to cause the rollers to move the plate and tissue therebetween, guiding the tissue into cooperative relation with the ferrotype plate, and depositing a sensitizing solution on the said plate substantially at the location where the tissue and plate are contacted.
  • v2 The method of'sensitizing roto-gravure carbon tissue consisting in holding one end of a carbon tissue in engagement with a ferrotype plate between feeding rollers, holding the remainder of said tissue and the plate out of contact one with the other, applying a sensitizing solution in the space between the tissue and plate at their point of contact when moving, and in rotating the rollersto feed theplate and tissue therebetween.
  • rollers engagiiigthe periphery of the second mentioned roller operative to draw carbon tissue around the second mentioned roller and guide it to a location between the first and second mentioned rollers, a ferrotype plate engageable with the advanced end of the said carbon tissue interposed between the first and second mentioned rollers, and means for depositing a sensitizingsolution between theplate and tissue as it is transferred through the apparatus by the said rollers.
  • a suitably driven roller a roller mounted to engage the periphery of the first mentioned roller and operative therewith, pivotally mounted arms in operative relation to the mentioned roller for guiding tissue therebetween,
  • a terrotype plate having an end of the carbon tissue attached to it interposed between the first and second mentioned rollers, and means for depositing a'sensitizing solution at approximately the junction of the plate and tissue as they are brought into operative relation with each 5 other.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Coating Apparatus (AREA)
US713930A 1934-03-03 1934-03-03 Method of and apparatus for sensitizing paper Expired - Lifetime US2051826A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE416996D BE416996A (en, 2012) 1934-03-03
US713930A US2051826A (en) 1934-03-03 1934-03-03 Method of and apparatus for sensitizing paper
GB21713/36A GB476267A (en) 1934-03-03 1936-08-06 An improved method and apparatus for sensitizing rotogravure carbon tissue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US713930A US2051826A (en) 1934-03-03 1934-03-03 Method of and apparatus for sensitizing paper

Publications (1)

Publication Number Publication Date
US2051826A true US2051826A (en) 1936-08-25

Family

ID=24868118

Family Applications (1)

Application Number Title Priority Date Filing Date
US713930A Expired - Lifetime US2051826A (en) 1934-03-03 1934-03-03 Method of and apparatus for sensitizing paper

Country Status (3)

Country Link
US (1) US2051826A (en, 2012)
BE (1) BE416996A (en, 2012)
GB (1) GB476267A (en, 2012)

Also Published As

Publication number Publication date
GB476267A (en) 1937-12-06
BE416996A (en, 2012)

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