FR2234057B1 - - Google Patents
Info
- Publication number
- FR2234057B1 FR2234057B1 FR7322943A FR7322943A FR2234057B1 FR 2234057 B1 FR2234057 B1 FR 2234057B1 FR 7322943 A FR7322943 A FR 7322943A FR 7322943 A FR7322943 A FR 7322943A FR 2234057 B1 FR2234057 B1 FR 2234057B1
- Authority
- FR
- France
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C45/00—Separating mandrels from work or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7322943A FR2234057B1 (fr) | 1973-05-14 | 1973-06-22 | |
US05/490,865 US3930394A (en) | 1973-05-14 | 1974-07-22 | Mill for plugging tubes and taking them off plug |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US35988873A | 1973-05-14 | 1973-05-14 | |
FR7322943A FR2234057B1 (fr) | 1973-05-14 | 1973-06-22 | |
US05/490,865 US3930394A (en) | 1973-05-14 | 1974-07-22 | Mill for plugging tubes and taking them off plug |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2234057A1 FR2234057A1 (fr) | 1975-01-17 |
FR2234057B1 true FR2234057B1 (fr) | 1976-04-30 |
Family
ID=27250138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7322943A Expired FR2234057B1 (fr) | 1973-05-14 | 1973-06-22 |
Country Status (2)
Country | Link |
---|---|
US (1) | US3930394A (fr) |
FR (1) | FR2234057B1 (fr) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1100696A (en) * | 1911-08-19 | 1914-06-16 | Shelby Steel Tube Company | Apparatus for rolling seamless tubes. |
US1778181A (en) * | 1924-06-24 | 1930-10-14 | Louis H Brinkman | Apparatus for forming tapered tubes |
US2074271A (en) * | 1932-03-19 | 1937-03-16 | Peters Herbert | Method and apparatus for the production of seamless tubing |
US2428474A (en) * | 1944-03-27 | 1947-10-07 | Bundy Tubing Co | Method of tube drawing |
US2560058A (en) * | 1945-02-02 | 1951-07-10 | Head Wrightson & Co Ltd | Tube and rod production |
US2597500A (en) * | 1948-04-28 | 1952-05-20 | Wallace E Kerr | Apparatus for drawing elongated metal objects |
US3392565A (en) * | 1965-02-15 | 1968-07-16 | Blaw Knox Co | Manufacture of seamless tubing |
US3593553A (en) * | 1968-07-12 | 1971-07-20 | Blaw Knox Co | Method and apparatus for rolling tubes |
US3590622A (en) * | 1968-12-18 | 1971-07-06 | Ernest N Calhoun | Apparatus for making tubing |
DE2002709B2 (de) * | 1970-01-22 | 1971-05-13 | Kieserling & Albrecht | Vorrichtung zum einspannen von in ein umformwerkzeug insbe sondere in die matrize einer ziehbank einzustossender werk stuecke |
GB1333956A (en) * | 1971-04-19 | 1973-10-17 | Nippon Kokan Kk | Mandrel assembly and a method of ejecting a plug from a mandrel |
-
1973
- 1973-06-22 FR FR7322943A patent/FR2234057B1/fr not_active Expired
-
1974
- 1974-07-22 US US05/490,865 patent/US3930394A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3930394A (en) | 1976-01-06 |
FR2234057A1 (fr) | 1975-01-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |