DK134289C - - Google Patents
Info
- Publication number
- DK134289C DK134289C DK209960A DK209960A DK134289C DK 134289 C DK134289 C DK 134289C DK 209960 A DK209960 A DK 209960A DK 209960 A DK209960 A DK 209960A DK 134289 C DK134289 C DK 134289C
- Authority
- DK
- Denmark
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
- B21H3/027—Rolling of self-tapping screws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0052—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge having indentations, notches or the like in order to improve the cutting behaviour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Connection Of Plates (AREA)
- Dowels (AREA)
- Forging (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81916759A | 1959-06-09 | 1959-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK134289B DK134289B (da) | 1976-10-11 |
| DK134289C true DK134289C (US08124317-20120228-C00026.png) | 1977-03-07 |
Family
ID=25227379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK209960A DK134289B (da) | 1959-06-09 | 1960-05-30 | Selvskærende skrue. |
Country Status (6)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3377906A (en) * | 1966-05-02 | 1968-04-16 | Res Engineering And Mfg Inc | Thread-forming tool |
| US3643722A (en) * | 1969-05-16 | 1972-02-22 | Parker Kalon Corp | Self-locking threaded fasteners |
| US4040328A (en) * | 1976-03-10 | 1977-08-09 | Research Engineering & Manufacturing, Inc. | Thread-forming fastener having dual lobulation and dies for making the same |
| US5964560A (en) * | 1995-08-15 | 1999-10-12 | Henriksen; Arne | Screw fastener |
| US6375401B1 (en) * | 1999-10-20 | 2002-04-23 | Continental/Midland, Inc. | Fastener shank crossection utilizing non-circular constant breadth curves |
| GB2371343A (en) * | 2001-01-17 | 2002-07-24 | Chun Chen Screw Co Ltd | Screw having triangular or polygonal thread turns |
| US6254327B1 (en) * | 1999-12-01 | 2001-07-03 | Chun Chen Screw Co., Ltd. | Screw with spiral triangular threads |
| CN2833213Y (zh) * | 2005-09-28 | 2006-11-01 | 欧维国际贸易(上海)有限公司 | 易攻螺钉 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2183688A (en) * | 1937-04-24 | 1939-12-19 | Illinois Tool Works | Means for and method of rolling screw threads |
| US2174968A (en) * | 1938-10-10 | 1939-10-03 | Economy Screw Corp | Screw making machine |
| US2352982A (en) * | 1942-06-25 | 1944-07-04 | American Screw Co | Screw for plastics |
| US2483186A (en) * | 1945-10-02 | 1949-09-27 | New Process Screw Corp | Apparatus for rolling screws |
| FR1177073A (fr) * | 1957-05-29 | 1959-04-20 | Besly Welles Corp | Tarauds sans cannelures pour tarauder du métal |
-
1960
- 1960-05-26 GB GB1862860A patent/GB957675A/en not_active Expired
- 1960-05-27 SE SE519760A patent/SE320846B/xx unknown
- 1960-05-27 DE DE1960R0028053 patent/DE1291948B/de active Pending
- 1960-05-30 DK DK209960A patent/DK134289B/da unknown
- 1960-05-31 ES ES0258495A patent/ES258495A1/es not_active Expired
- 1960-06-08 BE BE591674A patent/BE591674A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1291948B (de) | 1969-04-03 |
| SE320846B (US08124317-20120228-C00026.png) | 1970-02-16 |
| ES258495A1 (es) | 1960-11-16 |
| DK134289B (da) | 1976-10-11 |
| GB957675A (en) | 1964-05-13 |
| BE591674A (fr) | 1960-10-03 |
