GB506884A - Improvements in or relating to tapping tools - Google Patents
Improvements in or relating to tapping toolsInfo
- Publication number
- GB506884A GB506884A GB28426/38A GB2842638A GB506884A GB 506884 A GB506884 A GB 506884A GB 28426/38 A GB28426/38 A GB 28426/38A GB 2842638 A GB2842638 A GB 2842638A GB 506884 A GB506884 A GB 506884A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- threads
- holder
- mandrel
- screw
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/08—Making helical bodies or bodies having parts of helical shape internal screw-threads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Forging (AREA)
Abstract
506,884. Rolling screw - threads. DEUTSCHE ROHRENWERKE AKT.- GES. Sept: 30, 1938, No. 28426. Convention date, Nov. 15, 1937. [Class 83 (iv)] Internal screw-threads are rolled in a tubular blank 1 by a number of rolls 3 with circular grooves f distributed around a screw-threaded mandrel 6 and mounted in a holder 2, machinerotated by its squared end, and pressed into the blank the mandrel 6 being guided by a centring stud 7, rigidly secured in the holder 2. The rolls 3 are inclined to determine the pitch. The mandrel 6 may be conical, double conical or barrel shaped to form like threads on the work, the rolls 3 being free to move radially in the holder 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE506884X | 1937-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB506884A true GB506884A (en) | 1939-06-06 |
Family
ID=6546656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28426/38A Expired GB506884A (en) | 1937-11-15 | 1938-09-30 | Improvements in or relating to tapping tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB506884A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069940A (en) * | 1959-11-09 | 1962-12-25 | Koehler Marian Elizabeth | Tap for rolling internal threads |
US3089362A (en) * | 1957-05-02 | 1963-05-14 | Robert H Hill | Thread rolling tool |
EP1655090A1 (en) * | 2004-11-05 | 2006-05-10 | MEC-LAN S.r.l. | Rolling tap |
-
1938
- 1938-09-30 GB GB28426/38A patent/GB506884A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3089362A (en) * | 1957-05-02 | 1963-05-14 | Robert H Hill | Thread rolling tool |
US3069940A (en) * | 1959-11-09 | 1962-12-25 | Koehler Marian Elizabeth | Tap for rolling internal threads |
EP1655090A1 (en) * | 2004-11-05 | 2006-05-10 | MEC-LAN S.r.l. | Rolling tap |
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