GB499241A - Process and apparatus for the galvanic application of etchable deposits on printing cylinders - Google Patents
Process and apparatus for the galvanic application of etchable deposits on printing cylindersInfo
- Publication number
- GB499241A GB499241A GB5483/38A GB548338A GB499241A GB 499241 A GB499241 A GB 499241A GB 5483/38 A GB5483/38 A GB 5483/38A GB 548338 A GB548338 A GB 548338A GB 499241 A GB499241 A GB 499241A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- cylinder
- spindle
- carriage
- deposition
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/16—Curved printing plates, especially cylinders
- B41N1/20—Curved printing plates, especially cylinders made of metal or similar inorganic compounds, e.g. plasma coated ceramics, carbides
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/22—Electroplating combined with mechanical treatment during the deposition
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
Abstract
499,241. Electrodeposition of copper. LANGBEIN PFANHAUSER-WERKE AKT.- GES. Feb. 22, 1938, No. 5483. Convention date, Feb. 22, 1937. [Class 41] During the electrodeposition of copper on a rotating cylinder, the deposit is smoothed by an agate roller which is fed to and fro axially, the roller being mounted so as to be free to adjust its position relative to the cylinder and its direction of rolling automatically. The coated cylinders are etchable for use as printing rollers. In the apparatus shown, the roller 16 is mounted on a carriage which is reciprocated on a spindle 5 by means not shown, the feed being about one third of the total path for each revolution of the cylinder. The carriage comprises a slide 6 carrying an arm 8 in which is mounted a double bearing 9 rotatable about a bolt 10. In this bearing is mounted a rotatable spindle 13 carrying a fork 15 in which the roller 16 is mounted, the spindle 13 also being axially adjustable. The fork 15 is bent so that the axis of the spindle 13 is tangential to the roller ; tilting of the carriage by axial movement of the roller is thereby avoided. The arm 8 is loaded by weights 12 mounted on a bolt 11. The roller and its carriage may be swung away from the cylinder as shown at the right of the drawing. The roller 16 and the cylinder 4 are kept wetted by a sponge 18 supplied by a tube 17. The cylinder is rubbed by stationary stones 19 at the edges. The roller 16 comprises a cylindrical middle portion about 3 cms. wide, curving away for about 2 cms. on either side. The anodes 3 are mounted on holders 2. During the first third of the period of deposition the roller is unloaded ; it is then loaded with a weight of about 10 kg. After completion of the deposition the roller is passed several times over the rotating cylinder with the load increased to 20-30 kg. The current is then switched on for a short time in the reverse direction. During the last half-hour of deposition the current-density is reduced to half its original value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH499241X | 1937-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB499241A true GB499241A (en) | 1939-01-20 |
Family
ID=4516860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5483/38A Expired GB499241A (en) | 1937-02-22 | 1938-02-22 | Process and apparatus for the galvanic application of etchable deposits on printing cylinders |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2278512A (en) |
| BE (1) | BE426526A (en) |
| FR (1) | FR834056A (en) |
| GB (1) | GB499241A (en) |
| NL (1) | NL49427C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473290A (en) * | 1944-10-21 | 1949-06-14 | George E Millard | Apparatus for plating journals of crankshafts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156632A (en) * | 1960-02-11 | 1964-11-10 | Horst Corp Of America V D | Method of applying particles to an electrofoam during electroplating |
-
0
- BE BE426526D patent/BE426526A/xx unknown
- NL NL49427D patent/NL49427C/xx active
-
1938
- 1938-02-21 FR FR834056D patent/FR834056A/en not_active Expired
- 1938-02-21 US US191760A patent/US2278512A/en not_active Expired - Lifetime
- 1938-02-22 GB GB5483/38A patent/GB499241A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473290A (en) * | 1944-10-21 | 1949-06-14 | George E Millard | Apparatus for plating journals of crankshafts |
Also Published As
| Publication number | Publication date |
|---|---|
| BE426526A (en) | |
| US2278512A (en) | 1942-04-07 |
| NL49427C (en) | |
| FR834056A (en) | 1938-11-10 |
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