US1821306A - Apparatus for applying thin even layers of liquids on surfaces - Google Patents

Apparatus for applying thin even layers of liquids on surfaces Download PDF

Info

Publication number
US1821306A
US1821306A US356779A US35677929A US1821306A US 1821306 A US1821306 A US 1821306A US 356779 A US356779 A US 356779A US 35677929 A US35677929 A US 35677929A US 1821306 A US1821306 A US 1821306A
Authority
US
United States
Prior art keywords
roller
thin
paper
sheet
comb
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
US356779A
Other languages
English (en)
Inventor
Hingst Albert Karl Gotthelf
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.)
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1821306A publication Critical patent/US1821306A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/06—Applicator pads, rollers or strips
    • G03D5/067—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means

Definitions

  • FIGzE Ll enldf
  • a thin layer of a liquid developer e. g.a solution of an alkali, a solution of alkali and an azodyestulf component,
  • the sheet of paper or other material to 'be' developed passes in the apparatus in such manner that it is laid against the roller by a comb or a similar non-rotating device which acts on the back of the paper or other material.
  • the material to be developed follows the roller over a part, for example to 1/20 of its circumference, whereas on leaving the roller surface a'very thin and perfectly even layer of liquid remains onthe material, withoutformation of drops or strips of liquid on the paper or other material. It is remarkable that in the relatively short time of contact the liquid is taken up so well by the surface to be developed and this without any pressure being exerted on it for the comb exerts pressure only where its teeth rest, but not in the interstices, and yet the paper is evenly moistened. The pressure of the comb is only to effect the laying on of the paper against the roller and should be sufficient only for that purpose.
  • this surface must also co-operate, in so far that it may not push off the liquid through being too slippery or too hard or too hardly sized or by entire lack of sucking power; the liquid itself must also be taken up more or less easily.
  • the liquid for instance must not have too high, a viscosity.
  • roller surface plays a large part.
  • the roller is preferably chosen of moderatel hard material. Yet a. metal roller covere with a thin layer of soft rubher, works much better than a hard metal surface or ebonite or glass.
  • the surface must also preferably be rough and not slippery. It should not be greasy.
  • a long-used surface of thin soft rubber on a hard su porting roller can profitably be made roug again, for example by a treatment with fine emery-paper.
  • the circum-v ference and diameter of the roller also influences the result.
  • rollers are used of about 3-4 cm. diameter. This is of special im rtance with thin, slack sheets. With '01: coarse material the roller may have a larger diameter. The diameter of the roller may for instance be so regulated, that it works well for. a certain use within certain limits for thin as well as for thick material.
  • the apparatus consists, therefore, in prmciple, of one roller only, running in a trough, and a comb which rests on it.
  • a comb having its teeth s aced about to 2 cm. from each other an made of any' suitable material
  • an equivalent device may be roller may also be supplied, for example in the form of a comb with a distance between its teeth of 5-10 cm.; the teeth being as thin as possible.
  • the paper should be touched as little as ossible on its printed side until it is dry, ecause otherwise stripes will be formed. It is practicable to connect the trough with a reservoir containing the developing liquid in such a manner that the level in the trough is automatically kept constant, the connection, for example, being based on the well-known principle of the bottle of Mariotte.
  • the apparatus' is illustrated in the accom-.
  • FIG. 1 is a diagrammatic side view, partly in section, and Fig. 2 is a front view.
  • a is the roller, 6 the paper, 0 is a celluloid comb, which is brought into and out of contact with the paper on the roller by rods e, pivoting on an axle d.
  • the weight of the comb should be sufficient to exert enough pressure to insure the proper laying of the paper against the roller.
  • 7 is a table over which the paper is conducted, 9 is a device to take off the paper from the roller, which may for example be'a celluloid comb, which prevents the paper being carried around the roller.
  • h is the trough in which the roller (1 turns I and which is filled with the developing liquid, the surface of which is kept on a determined level because the trough is connected by an opened cock is, with a closed flask Z.
  • the flask Z opened, re lled, closed and placed in its original position, after which the cock is opened.
  • Any known drying device of approved type can be combined with the apparatus.
  • the sheet is preferably put across a stationary roller and a short distance over the take-off device.
  • the su plying comb is made so that it can be tippet up. After putting in the sheet, the comb is tipped down and the apparatus is set in motion in one of the abovementioned ways.
  • the apparatus are made in widths (lengths of the rollerg up to 120 cm. that is, suitable for the broa est existing sheets.
  • the length of the sheets to be operated with, is unlim-v such as small holes, scratches etc. so that these do not mfiuence the result unfavourably.
  • Example 1 Highly-absorbent, mat paper prepared with a solution of 1.8% l-diaethylaminoi-diazoniumchlorostannate 1 gelatine 1 oxalic acid 2 Matt arabicum reduction agents 2 glucose 2 thiocarbamide (antioxygene according to Moureu) is exposed under a transparent drawing and the print is led through the described apparatus With a speed of 1 meters per minute. In the trough is a solution of the following composition reduction agents.
  • the speed of the apparatus can vary from 1-6 meters per minute circumferential speed of the roller.
  • a developer which is poorer 1n alkali and azodyestuff component but is rich in the other components.
  • Apparatus for developing phototypes comprising a roller for applying a developing liquid to the surface of a sheet to be developed, means for supplying developing liquid to the surface of said roller, an elongated non-rotating device having a plurality of spaced toothed members or ressing the sheet against said roller, an means for mounting said device in operative relation with said roller so that said members bear against the sheet with a pressure suflicient to cause the sheet to follow art of the eriphcry of said roller in suc manner, t at the developing liquid is spread upon the surface pf the sheet to be developed in a thin even a er.
  • Apparatus for developing photo-types comprising a roller for ap lying a developing liquid to the surface 0 a sheet to be developed, means for supplying develo ing liquid to the surface of sa1d roller, ane ongated non-rotating device having a comb for press- 0 ing the sheet against said roller, and means for mounting said device in operative relation with said roller sothat said comb bears against the sheet with a pressure suflicient to cause the sheet to follow art of the eripllliat t e developing liquid is spread upon the surface of the sheet to be developed in a thin even layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
US356779A 1928-12-08 1929-04-20 Apparatus for applying thin even layers of liquids on surfaces Expired - Lifetime US1821306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL330625X 1928-12-08

Publications (1)

Publication Number Publication Date
US1821306A true US1821306A (en) 1931-09-01

Family

ID=19784353

Family Applications (1)

Application Number Title Priority Date Filing Date
US356779A Expired - Lifetime US1821306A (en) 1928-12-08 1929-04-20 Apparatus for applying thin even layers of liquids on surfaces

Country Status (6)

Country Link
US (1) US1821306A (it)
BE (1) BE361684A (it)
DE (1) DE656679C (it)
FR (1) FR661650A (it)
GB (1) GB330625A (it)
NL (1) NL23602C (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524818A (en) * 1946-06-25 1950-10-10 Joseph W Mchugh Light-sensitive print development apparatus
US2532126A (en) * 1946-12-16 1950-11-28 Gen Aniline & Film Corp Diazotype photographic material
US2537097A (en) * 1945-08-18 1951-01-09 Gen Aniline & Film Corp Dyeing of textile materials by the use of light-sensitive diazo salts
US2776888A (en) * 1954-07-15 1957-01-08 Pop Gregorio Photographic sensitizer and developer
US2952201A (en) * 1956-11-23 1960-09-13 Cons Electrodynamics Corp Apparatus for reeling wet paper
US3092006A (en) * 1959-02-24 1963-06-04 Zindler Lumoprint Kg Devices for making photographic copies
US3591286A (en) * 1967-02-07 1971-07-06 Ricoh Kk Photographic copying machine
US3608467A (en) * 1969-04-09 1971-09-28 Technology Inc Guide member for sheets of photographic print paper
US3778274A (en) * 1970-04-08 1973-12-11 Canon Kk Spectrally sensitized diazo material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873041C (de) * 1938-03-23 1953-04-09 Renker Belipa G M B H Verfahren zur Halbtrockenentwicklung von Zweikomponenten-Diazotypieschichten

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537097A (en) * 1945-08-18 1951-01-09 Gen Aniline & Film Corp Dyeing of textile materials by the use of light-sensitive diazo salts
US2524818A (en) * 1946-06-25 1950-10-10 Joseph W Mchugh Light-sensitive print development apparatus
US2532126A (en) * 1946-12-16 1950-11-28 Gen Aniline & Film Corp Diazotype photographic material
US2776888A (en) * 1954-07-15 1957-01-08 Pop Gregorio Photographic sensitizer and developer
US2952201A (en) * 1956-11-23 1960-09-13 Cons Electrodynamics Corp Apparatus for reeling wet paper
US3092006A (en) * 1959-02-24 1963-06-04 Zindler Lumoprint Kg Devices for making photographic copies
US3591286A (en) * 1967-02-07 1971-07-06 Ricoh Kk Photographic copying machine
US3608467A (en) * 1969-04-09 1971-09-28 Technology Inc Guide member for sheets of photographic print paper
US3778274A (en) * 1970-04-08 1973-12-11 Canon Kk Spectrally sensitized diazo material

Also Published As

Publication number Publication date
GB330625A (en) 1930-06-13
BE361684A (it)
FR661650A (it) 1929-08-02
NL23602C (it) 1900-01-01
DE656679C (de) 1938-02-11

Similar Documents

Publication Publication Date Title
US1821306A (en) Apparatus for applying thin even layers of liquids on surfaces
US2605684A (en) Apparatus for semiwet development of photoprints
US2305799A (en) Photographic material
US4070110A (en) Automatic platemaking process and apparatus
US2417060A (en) Apparatus and process for motionpicture color photography
US2602742A (en) Sensitized sheets provided with a screen
GB1334141A (en) Migration imaging
US1916108A (en) Machine for developing photographic prints
US2056584A (en) Apparatus for developing prints
US2852371A (en) Photographic duplicating process
US2653871A (en) Preparation of engraved rubber printing plates
US2591665A (en) Process of laminating photographic color film to glass
US1798414A (en) Process and apparatus for developing light-sensitive layers
GB889618A (en) Improvements in spirit duplicating processes and materials therefor
US1371157A (en) Manifolding, duplicating, and the like
US1303836A (en) Alvin wyckoff anb max handschiegl
GB324330A (en) Photographic paper having a transferable gelatine-silver film, and processes in connection therewith
US2326777A (en) Roller for printing
DE596377C (de) Photographisches Reproduktionsverfahren
US2963953A (en) Photographic apparatus
GB327365A (it)
US3159485A (en) Spirit duplicating process
GB677281A (en) Improvements in or relating to pencils and method of producing same
US2652343A (en) Photographic dye solution
GB312261A (en) A process and apparatus for developing positive diazo prints