GB581249A - Improvements in or relating to dies for rolling screw threads, serrations and the like - Google Patents
Improvements in or relating to dies for rolling screw threads, serrations and the likeInfo
- Publication number
- GB581249A GB581249A GB1355044A GB1355044A GB581249A GB 581249 A GB581249 A GB 581249A GB 1355044 A GB1355044 A GB 1355044A GB 1355044 A GB1355044 A GB 1355044A GB 581249 A GB581249 A GB 581249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dies
- rolling screw
- parts
- thread
- threads
- 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
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
581,249. Rolling screw - threads. MORRIS, H. July 15, 1944, Nos. 13550/44 and 15242/45. [Class 83 (iv)] Dies for rolling screw-threads have conversely curved leading ends 10a, 11a that ensure correct presentation of the blanks apart from the squareness of the feed finger. The first active portions 10b, 11b of the dies are tapered gradually to form the thread and are followed by parallel finishing portions 10c, 11c terminating in-convex parts 10d, 11d providing for gradual reduction of pressure. The parts 10b, 11b may be extended leaving only sufficient parallel parts to correspond to one circumference of the blank. The inclination of the thread forming. ridges is preferably varied throughout the taper parts according to the change in helix angle between the crest and root of the thread.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1355044A GB581249A (en) | 1944-07-15 | 1944-07-15 | Improvements in or relating to dies for rolling screw threads, serrations and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1355044A GB581249A (en) | 1944-07-15 | 1944-07-15 | Improvements in or relating to dies for rolling screw threads, serrations and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581249A true GB581249A (en) | 1946-10-07 |
Family
ID=10024971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1355044A Expired GB581249A (en) | 1944-07-15 | 1944-07-15 | Improvements in or relating to dies for rolling screw threads, serrations and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB581249A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3190246A (en) * | 1962-06-04 | 1965-06-22 | Neal Robert Lee | Machine for planting plant rhizomes or stolons |
EP0296594A2 (en) * | 1987-06-23 | 1988-12-28 | Wanderer Maschinen Gesellschaft mbH | Method and device for mutual aligning of forming rollers |
EP0411179A1 (en) * | 1988-07-14 | 1991-02-06 | SPS TECHNOLOGIES, Inc. | Thread rolling dies |
EP1847339A1 (en) * | 2006-04-21 | 2007-10-24 | S.M.A.R.T. S.R.L. | Automatic rolling machine with flat chasers |
WO2012009439A1 (en) * | 2010-07-14 | 2012-01-19 | Illinois Tool Works Inc. | Thread forming die and method |
EP3263244A4 (en) * | 2016-03-18 | 2018-12-26 | Sanshu Co., Ltd. | Rolling flat die for screw component and rolling working method |
-
1944
- 1944-07-15 GB GB1355044A patent/GB581249A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3190246A (en) * | 1962-06-04 | 1965-06-22 | Neal Robert Lee | Machine for planting plant rhizomes or stolons |
EP0296594A2 (en) * | 1987-06-23 | 1988-12-28 | Wanderer Maschinen Gesellschaft mbH | Method and device for mutual aligning of forming rollers |
EP0296594A3 (en) * | 1987-06-23 | 1990-07-04 | Wanderer Maschinen Gesellschaft mbH | Method and device for mutual aligning of forming rollers |
EP0411179A1 (en) * | 1988-07-14 | 1991-02-06 | SPS TECHNOLOGIES, Inc. | Thread rolling dies |
EP1847339A1 (en) * | 2006-04-21 | 2007-10-24 | S.M.A.R.T. S.R.L. | Automatic rolling machine with flat chasers |
WO2012009439A1 (en) * | 2010-07-14 | 2012-01-19 | Illinois Tool Works Inc. | Thread forming die and method |
US20130051954A1 (en) * | 2010-07-14 | 2013-02-28 | Illinois Tool Works, Inc. | Thread forming die and method |
US9511414B2 (en) * | 2010-07-14 | 2016-12-06 | Illinois Tool Works Inc. | Thread forming die and method |
EP3263244A4 (en) * | 2016-03-18 | 2018-12-26 | Sanshu Co., Ltd. | Rolling flat die for screw component and rolling working method |
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