GB631756A - A method and means for controlling the depth of electrolytic engraving - Google Patents
A method and means for controlling the depth of electrolytic engravingInfo
- Publication number
- GB631756A GB631756A GB973947A GB973947A GB631756A GB 631756 A GB631756 A GB 631756A GB 973947 A GB973947 A GB 973947A GB 973947 A GB973947 A GB 973947A GB 631756 A GB631756 A GB 631756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engraving
- electrolytic
- depth
- crossland
- contacts
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
Abstract
631,756. Electrolytic etching. CROSSLAND, J. A., and CROSSLAND, E. M., (trading as LOCKETT, CROSSLAND, & CO.). April 11, 1947, No. 9739. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 21, 1947.] [Class 41] A method of controlling the depth of engraving in an electrolytic engraving bath comprises restraining a current-interrupting device by means which is subjected to an electrolytic action, the same as or proportional to that which effects the engraving, and which is such as to become inoperative and thereby release the current-interrupting means when the desired depth of electrolytic action has taken place. As shown, a metal strip B, supported in a bath K, is under tension. by means of a spring R which is connected to a blade L. During engraving of a plate C the blade L connects two contacts P, A in the electrolytic circuit. The depth of engraving is controlled by the strip B which is eventually reduced in size, so that it is broken by the tension of the spring R. The contacts A, P are then disconnected so that the circuit of the plate C is broken. Contacts G, H are then connected, whereby a circuit is complete to actuate an electric bell S. The invention is applicable also in the case where the article to be engraved is a rotating printing roller, only part of which is immersed in the bath at a time, the control member being also similarly mounted and rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB973947A GB631756A (en) | 1947-04-11 | 1947-04-11 | A method and means for controlling the depth of electrolytic engraving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB973947A GB631756A (en) | 1947-04-11 | 1947-04-11 | A method and means for controlling the depth of electrolytic engraving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB631756A true GB631756A (en) | 1949-11-09 |
Family
ID=9877834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB973947A Expired GB631756A (en) | 1947-04-11 | 1947-04-11 | A method and means for controlling the depth of electrolytic engraving |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB631756A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2767137A (en) * | 1954-07-15 | 1956-10-16 | Philco Corp | Method for electrolytic etching |
| US2827725A (en) * | 1955-03-07 | 1958-03-25 | Turco Products Inc | Apparatus for determining depth of etching |
-
1947
- 1947-04-11 GB GB973947A patent/GB631756A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2767137A (en) * | 1954-07-15 | 1956-10-16 | Philco Corp | Method for electrolytic etching |
| US2827725A (en) * | 1955-03-07 | 1958-03-25 | Turco Products Inc | Apparatus for determining depth of etching |
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