US1499879A - Etching apparatus - Google Patents
Etching apparatus Download PDFInfo
- Publication number
- US1499879A US1499879A US641783A US64178323A US1499879A US 1499879 A US1499879 A US 1499879A US 641783 A US641783 A US 641783A US 64178323 A US64178323 A US 64178323A US 1499879 A US1499879 A US 1499879A
- Authority
- US
- United States
- Prior art keywords
- etching apparatus
- dippers
- fluid
- tank
- shaft
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/08—Apparatus, e.g. for photomechanical printing surfaces
Definitions
- This invention relates to certain new and useful improvements in etching apparatus and the primary object thereof is to provide an apparatus which projects a uniform spray of the etching fluid against the surface of the metal to be etched, the latter being disposed at the top of the tank or vat containing the etching fluid.
- a further object of the invention is to provide projecting means which includes dippers which are formed so as to eliminate back-lash or vacuum beneath the dippers as the latter pass through the etching fluid.
- a still further object of the invention is to provide an apparatus of this type which can be efficiently operated with a minimum of etching fluid.
- Figure 1 is a central transverse sectional view of the invention on line. 11 of Figure 2;
- Figure 2 is a section on line 22 of Fig-' ure 1, on a reduced scale
- Figure 4 is a side elevation of Figure 3, partly broken away and in section.
- a tank or vat 1 is employed, the bottom 2 of which is of concave form and is provided with a drain 3 at one end a head 9.
- the heads have flared open mouths 10, and closed rear ends 11, the pe ripheral portions 13 of the heads being of curved or arouate form.
- the rear ends of the heads are of converging or tapering form, while the peripheral portions or walls niur'rr nun WALTER n. nnnni'snno;
- the metal plate P to be etched is supported at the top of the tank as shown in Figure 1.
- a tank having a concave bottom, a shaft extending lengthwise of the tank, and a series of dippers arranged'in' pairs and carried by the shaft, each pair of dippers having a hub and spokes connecting the dippers to the hub, each, dipper having a flared mouth, a tapered closed rear end and a curved peripheral wall formed with a series of outlets disposed adjacent to the apex of the tapered rear end, the distance from the center of the hub to the front of the mouth being greater than the distance from the center of the hub'to the apex of the tapered rear end.
- a tank, ashaft therein, and a dipper carried by the shaft the dipper having a mouth and a closed rear end and outlets adjacent to the latter, the distance from the center of the shaft to the mouth being greater than the distance from the center of the shaft to the closed rear end to prevent the formation of vacuum beneathold do.
- ti sitters 4.
- n1 etching apparatus a tank, a shaft therein, and a dipper on the shaft having a flared mouth and a converging rear portion, the axis ofthe mouth being arranged at an angle to the axis of the rear portion, the rear portion being formed with fluid discharge openings.
Description
July 1, 1924. 1,499,879
C. O. SCHMITT ET AL ETCHING APPARATUS Filed May 26. 1923 Jnvenfoz CHARLES 0. so
To all whom it may concern:
ai nown that We QHA PES SOHMITT d. Warren ."L EHLEEBGJ. citizens of the United States, residing at Sioux Falls, in the county of Minnehaha and State of South Dakota, have invented certain new and useful Improvements in Etching Apparatus, of which the following is a specification.
This invention relates to certain new and useful improvements in etching apparatus and the primary object thereof is to provide an apparatus which projects a uniform spray of the etching fluid against the surface of the metal to be etched, the latter being disposed at the top of the tank or vat containing the etching fluid.
A further object of the invention is to provide projecting means which includes dippers which are formed so as to eliminate back-lash or vacuum beneath the dippers as the latter pass through the etching fluid.
A still further object of the invention is to provide an apparatus of this type which can be efficiently operated with a minimum of etching fluid.
Still further and other objects will be later set forth and manifested in the course of the following description.
In the drawings Figure 1, is a central transverse sectional view of the invention on line. 11 of Figure 2;
Figure 2, is a section on line 22 of Fig-' ure 1, on a reduced scale;
1 Figure 3, is an enlarged front elevation of one of the dippers, and
Figure 4, is a side elevation of Figure 3, partly broken away and in section.
In proceeding in accordance with the present invention, a tank or vat 1 is employed, the bottom 2 of which is of concave form and is provided with a drain 3 at one end a head 9. The heads have flared open mouths 10, and closed rear ends 11, the pe ripheral portions 13 of the heads being of curved or arouate form. The rear ends of the heads are of converging or tapering form, while the peripheral portions or walls niur'rr nun WALTER n. nnnni'snno;
*nronrivenrraaarns. r
si -WXP The eter ;j g-pana al minum, each hub having a pair located at diametrically opposite points thereon.
By referring to Figure 4 of the drawings, it will be seen that the circumference of each dipper from point A, to point B is so designed that the distance from A to C, the lat-' ter the center of the hub, is greater than the distance from B to C, which eliminates the formation of vacuum under the dippers as the latter pass through the etching fluid.
The metal plate P to be etched is supported at the top of the tank as shown in Figure 1.
In operation, referring to Figure 1, it will be seen that by virtue of the concave bottom 2, a sufficient depth of fluid will be afforded with use of but a comparatively small quan tity. The mouths of the dippers dip into the fluid but to a slight extent beneath the surface of the latter, and due to the rearward convergence of the dippersvtowardsthe heels thereof, the fluid caught in the dipper is forced toward the outlets 14 and projected through the latter and against the plate being etched. The dippers are arranged in staggered relation as shown in Figures 1 and 2 so as to maintain a constant and uniform spray against the plate P.
What is claimed is 1. In an etching apparatus, a tank having a concave bottom, a shaft extending lengthwise of the tank, and a series of dippers arranged'in' pairs and carried by the shaft, each pair of dippers having a hub and spokes connecting the dippers to the hub, each, dipper having a flared mouth, a tapered closed rear end and a curved peripheral wall formed with a series of outlets disposed adjacent to the apex of the tapered rear end, the distance from the center of the hub to the front of the mouth being greater than the distance from the center of the hub'to the apex of the tapered rear end.
2. In an etching apparatus, a tank, ashaft therein, and a dipper carried by the shaft, the dipper having a mouth and a closed rear end and outlets adjacent to the latter, the distance from the center of the shaft to the mouth being greater than the distance from the center of the shaft to the closed rear end to prevent the formation of vacuum beneathold do. PM.
ti sitters 4. n1 etching apparatus, a tank, a shaft therein, and a dipper on the shaft having a flared mouth and a converging rear portion, the axis ofthe mouth being arranged at an angle to the axis of the rear portion, the rear portion being formed with fluid discharge openings.
In testimony whereof We afiix our signa- 20 tures.
CHARLES, o. :soHM-rrr'. WALTER F. FEHLBERG,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US641783A US1499879A (en) | 1923-05-26 | 1923-05-26 | Etching apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US641783A US1499879A (en) | 1923-05-26 | 1923-05-26 | Etching apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US1499879A true US1499879A (en) | 1924-07-01 |
Family
ID=24573822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US641783A Expired - Lifetime US1499879A (en) | 1923-05-26 | 1923-05-26 | Etching apparatus |
Country Status (1)
Country | Link |
---|---|
US (1) | US1499879A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6047715A (en) * | 1998-12-18 | 2000-04-11 | Eastman Kodak Company | Turbulent cleaning action for ink jet print heads and orifices |
-
1923
- 1923-05-26 US US641783A patent/US1499879A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6047715A (en) * | 1998-12-18 | 2000-04-11 | Eastman Kodak Company | Turbulent cleaning action for ink jet print heads and orifices |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1499879A (en) | Etching apparatus | |
US1851396A (en) | Tongue scraper | |
US1210818A (en) | Milk vessel for milking-machines working with vacuum. | |
US1908617A (en) | Dishwasher | |
US1823635A (en) | Spray nozzle | |
US1534670A (en) | Teakettle | |
US749232A (en) | Ments | |
US2082146A (en) | Dispensing device | |
US943892A (en) | Cream-pump and egg-beater. | |
US1511632A (en) | Sap spout | |
US1846098A (en) | Soap and water mixer | |
US1736862A (en) | Etching machine | |
US1670675A (en) | Nozzle | |
US1597686A (en) | Spray nozzle | |
CN208395449U (en) | Dyeing machine nozzle | |
US1284162A (en) | Surface-broadcaster. | |
DE928552C (en) | Dishwasher for small households | |
US2062779A (en) | Sprinkler head for irrigation pipes | |
US1502770A (en) | Egg separator | |
US1251268A (en) | Method of flushing closet-bowls. | |
US1477180A (en) | Seed-corn tipper | |
DE359334C (en) | Device for heating the cooking liquor outside the digester in a special heating container | |
US1557408A (en) | Plowpoint | |
DE515082C (en) | Centrifugal slurry pump | |
US1394040A (en) | Coffeepot |