US470012A - schlehek - Google Patents
schlehek Download PDFInfo
- Publication number
- US470012A US470012A US470012DA US470012A US 470012 A US470012 A US 470012A US 470012D A US470012D A US 470012DA US 470012 A US470012 A US 470012A
- Authority
- US
- United States
- Prior art keywords
- plaster
- paper
- paris
- cast
- glass plate
- 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
Links
- 239000011521 glass Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 22
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 20
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 20
- 239000011507 gypsum plaster Substances 0.000 description 20
- 238000005266 casting Methods 0.000 description 14
- 239000011505 plaster Substances 0.000 description 12
- 238000003825 pressing Methods 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000000284 resting Effects 0.000 description 4
- 239000001828 Gelatine Substances 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002522 swelling Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
- B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
Definitions
- plaster-0 fparis Upon the exposed and developed sensitive gelatine-paper I cast a layer of plaster-0 fparis whose tendency for hardening has been retarded to a certain extent by the addition of marble-dust, glue, borax, or the like. As soon as the plaster cast has the necessary degree of compactness the gelatinized paper is removed or pulled off and in place of the same is laid a glass plate. The plaster cast is allowed to rest on the glass plate, so that the weight of the cast will cause the elevations to be forced back into the mass until every delineation comprising the drawing or representation lies upon one and the same level.
- the depressions or indentations between the delineations of course lie on a lower level than the delineations; but said delineations occupy a common level, so as to be suitable for printing.
- plaster cast thus obtained casts in wax, metals, plaster-ofparis, or the like can be made, or after the hardening of the original plaster cast I can press into the same any mass that is capable of being shaped or formed.
- Figure 1 is a section of a plaster-of-paris layer cast upon gelatine-paper secured to a background.
- Fig. 2 is a section of the plaster-of-paris layer resting on a glass plate.
- Fig. 3 shows a face view of a piece of background.
- the layer 0 of plaster-of-paris Upon the gelatine-paper A is cast the layer 0 of plaster-of-paris.
- the gelatine-paper is shown provided with a suitable background 13.
- the plaster cast is sufficiently compact, reverse the cast, so that the paper A is on top, and then pull off the paper, the background being of course also removed in case the background is used.
- gelatinized paper used in carrying out the above process is obtained by bathing the paper in the sensitive fluid,and said sensitive paper can be secured to any suitable background.
- This process of obtaining a background is simpler than the process heretofore employed for that purpose, which consists in placing nets or lines between the drawing and the photographic apparatus.
Description
(No Model.)
L. SOHAEFER. I METHOD OF PRODUCING PHOTO-MECHANICAL PRINTING PLATES. No. 470,012. Patented Mar. 1, 1892.
WITNESSES: INVENTOH.
Izdwzyfikaefen ("M By W w 1 WWW W Me A TTOHNE rs UNrrn STATES LUDWIG SGI-IAEFER, 0F
A'rENT FFICE.
HEILBRONN, GERMANY.
SPECIFICATION forming part of Letters Patent No. 470,012, dated March 1, 1892.
Application filed January 3, 1891.
Serial No. 376,627. (No model.)
To all whom it may concern:
Be it known that I, LUDWIG SCHAEFER, of the city of Heilbronn, Wiirtemberg, Germany, have invented a new and useful Improvement in the Method of Producing Photo-Mechanical Printing-Plates, suitable for casting therefrom or to press from, of which the following is a specification.
The swelling and dissolution of light sensiti ve gelatinized paper is made use of by me for the reproduction of photographs, drawings, wood-cuts, copper-plate, lithographs, musicprints, and the like, as by this process there are prod uced elevations which,notbeing perfectly level and on the same plane, are unsuited for useas, for example, in printing forms and the like. I make use of the following process for producing the form:
Upon the exposed and developed sensitive gelatine-paper I cast a layer of plaster-0 fparis whose tendency for hardening has been retarded to a certain extent by the addition of marble-dust, glue, borax, or the like. As soon as the plaster cast has the necessary degree of compactness the gelatinized paper is removed or pulled off and in place of the same is laid a glass plate. The plaster cast is allowed to rest on the glass plate, so that the weight of the cast will cause the elevations to be forced back into the mass until every delineation comprising the drawing or representation lies upon one and the same level. The depressions or indentations between the delineations of course lie on a lower level than the delineations; but said delineations occupy a common level, so as to be suitable for printing. From the plane and level plaster cast thus obtained casts in wax, metals, plaster-ofparis, or the like can be made, or after the hardening of the original plaster cast I can press into the same any mass that is capable of being shaped or formed.
This invention is illustrated in the annexed drawings, in which Figure 1 is a section of a plaster-of-paris layer cast upon gelatine-paper secured to a background. Fig. 2 is a section of the plaster-of-paris layer resting on a glass plate. Fig. 3 shows a face view of a piece of background.
Upon the gelatine-paper A is cast the layer 0 of plaster-of-paris. The gelatine-paper is shown provided with a suitable background 13. When the plaster cast is sufficiently compact, reverse the cast, so that the paper A is on top, and then pull off the paper, the background being of course also removed in case the background is used. Then lay a glass plate D on the plaster cast and reverse the cast, so that it rests on the plate D, as seen in Fig. 2. The castis left resting on the glass plate until the required leveling is attained.
The gelatinized paper used in carrying out the above process is obtained by bathing the paper in the sensitive fluid,and said sensitive paper can be secured to any suitable background.
This process of obtaining a background is simpler than the process heretofore employed for that purpose, which consists in placing nets or lines between the drawing and the photographic apparatus.
What I claim as new, and desire to secure by Letters Patent, is v 1. The process of producing forms of plane level surface suitable for casting or pressing, which process consists in taking developed sensitive gelatinepaper, casting thereon a layer of plaster-of-paris, removing'the gelatine-paper, substituting therefora glass plate, and causing the plaster-of-paris to rest on said glass plate, so as to press out any unevenness in the plaster-of-paris, substantially as described.
2. The process of producing forms of plane level surface suitable for casting or pressing, which process consists in taking developed sensitive gelatine-paper, casting thereon a layer of plaster-of-paris mixed with such substance as marble-dust or equivalent material to retard the hardening of the plaster-of-paris, removing the gelatine paper, substituting therefor a glass plate, and causing the plaster-of-paris to rest on said glass plate, so as to press out any unevenness in the plasterof-paris, substantially as described.
3. The process of producing forms of plane level surface suitable for casting or pressing, which process consists in securing developed sensitive gelatine-paper to a suitable back- ICO ground, casting thereon a layer of plaster-0fname to this specification in the presence of paris, removing the gelatine-paper, substituttwo subscribing Witnesses. ing therefor a glass plate, and causing the plaster-of-paris to rest on said glass plate, so LUDWIG SCHAEFER. 5 as to press out any unevenness in the plaster- Vitnesses:
of-paris, substantially as described. ADOLPH D. SCHLEHER,
In testimony whereof I have signed my FRIEDR. SOHLEHER.
Publications (1)
Publication Number | Publication Date |
---|---|
US470012A true US470012A (en) | 1892-03-01 |
Family
ID=2538872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US470012D Expired - Lifetime US470012A (en) | schlehek |
Country Status (1)
Country | Link |
---|---|
US (1) | US470012A (en) |
-
0
- US US470012D patent/US470012A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1242193A (en) | Photohardenable element with integral pigmented layer | |
GB2012977A (en) | Relief printing plates produced from photopolymerisable materials | |
GB1263122A (en) | Image reproduction process | |
US2147770A (en) | Method of producing colored designs on ceramic ware | |
US470012A (en) | schlehek | |
SE7512264L (en) | FORSENSIBILIZED, LIGHT-LIKE SHEET CONSTRUCTION | |
US1327931A (en) | Reproducing manuscript, typewritten or printed matter, drawings, photographs, or thelike | |
US134470A (en) | Improvement in printing-forms | |
US1557354A (en) | Process for producing photomechanical printing plates | |
US381091A (en) | Process of converting a photographic image on a gelatine surface into a relief or intaglio | |
ES326326A1 (en) | A procedure for the preparation of a plate for printing in offset. (Machine-translation by Google Translate, not legally binding) | |
US687107A (en) | Method of producing plastic articles by the aid of photography. | |
US242414A (en) | Batjd | |
US250239A (en) | Christian h | |
US744223A (en) | Photographic reproductive process. | |
US387490A (en) | Geoege w | |
US741278A (en) | Process of producing positive chromatized colloid designs on plates for printing purposes. | |
US1234888A (en) | Photo-engraving method. | |
US634259A (en) | Printer's overlay and process of making same. | |
TWI286661B (en) | Transfer process and apparatus for inkjet pattern | |
US2454729A (en) | Method of molding halftone values in printing surfaces | |
US962484A (en) | Process for preparing photographic pictures. | |
US718842A (en) | Process of making relief-effect printing-plates. | |
US1532188A (en) | Lithographic printing plate and process of preparing the same | |
US865276A (en) | Art of etching. |