GB1509912A - Twist drills - Google Patents
Twist drillsInfo
- Publication number
- GB1509912A GB1509912A GB22130/74A GB2213074A GB1509912A GB 1509912 A GB1509912 A GB 1509912A GB 22130/74 A GB22130/74 A GB 22130/74A GB 2213074 A GB2213074 A GB 2213074A GB 1509912 A GB1509912 A GB 1509912A
- Authority
- GB
- United Kingdom
- Prior art keywords
- twist drills
- drills
- twist
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22130/74A GB1509912A (en) | 1974-05-17 | 1974-05-17 | Twist drills |
IE1033/75A IE41050B1 (en) | 1974-05-17 | 1975-05-08 | An improvement in or relating to twist drills |
CA226,654A CA1022775A (en) | 1974-05-17 | 1975-05-09 | Twist drills |
ZA00753040A ZA753040B (en) | 1974-05-17 | 1975-05-12 | An improvement in or relating to twist drills |
NL7505612A NL7505612A (nl) | 1974-05-17 | 1975-05-13 | Spiraalboor. |
IN971/CAL/1975A IN144887B (de) | 1974-05-17 | 1975-05-14 | |
IL47302A IL47302A (en) | 1974-05-17 | 1975-05-14 | Twist drill having a constant lip rake angle along the cutting edge |
SE7505581A SE7505581L (sv) | 1974-05-17 | 1975-05-15 | Anordning vid spiralborrar. |
BR3840/75D BR7503011A (pt) | 1974-05-17 | 1975-05-15 | Aperfeicoamento em broca helicoidal |
FR7515147A FR2270978A1 (de) | 1974-05-17 | 1975-05-15 | |
IT23421/75A IT1038197B (it) | 1974-05-17 | 1975-05-16 | Punta elicoidale in particolare per trapani |
DE2521938A DE2521938C3 (de) | 1974-05-17 | 1975-05-16 | Spiralbohrer |
ES437919A ES437919A1 (es) | 1974-05-17 | 1975-05-16 | Perfeccionamientos en la fabricacion de brocas helicoidales. |
JP50058458A JPS50156790A (de) | 1974-05-17 | 1975-05-16 | |
AU81256/75A AU500271B2 (en) | 1974-05-17 | 1975-05-19 | Twist drill |
US05/730,442 US4065224A (en) | 1974-05-17 | 1976-10-07 | Twist drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22130/74A GB1509912A (en) | 1974-05-17 | 1974-05-17 | Twist drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1509912A true GB1509912A (en) | 1978-05-04 |
Family
ID=10174379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22130/74A Expired GB1509912A (en) | 1974-05-17 | 1974-05-17 | Twist drills |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS50156790A (de) |
AU (1) | AU500271B2 (de) |
BR (1) | BR7503011A (de) |
CA (1) | CA1022775A (de) |
DE (1) | DE2521938C3 (de) |
ES (1) | ES437919A1 (de) |
FR (1) | FR2270978A1 (de) |
GB (1) | GB1509912A (de) |
IE (1) | IE41050B1 (de) |
IL (1) | IL47302A (de) |
IN (1) | IN144887B (de) |
IT (1) | IT1038197B (de) |
NL (1) | NL7505612A (de) |
SE (1) | SE7505581L (de) |
ZA (1) | ZA753040B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2184046A (en) * | 1985-12-13 | 1987-06-17 | Skf & Dormer Tools | Twist drill |
GB2417447A (en) * | 2004-08-23 | 2006-03-01 | Osg Corp | A twist drill bit |
EP2366478A3 (de) * | 2001-07-10 | 2012-04-18 | Mitsubishi Materials Corporation | Bohrer |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5331286A (en) * | 1976-09-02 | 1978-03-24 | Riyousuke Hosoi | Ball end mill |
SE8300910L (sv) * | 1983-02-18 | 1984-08-19 | Santrade Ltd | Sammansatt kropp bestaende av ett substrat belagt med hart, slitstarkt ytskikt |
JPS634211U (de) * | 1986-06-23 | 1988-01-12 | ||
JPH03502664A (ja) * | 1988-10-21 | 1991-06-20 | ズブコフ アレクセイ ウラディミロヴィッチ | スパイラルドリル |
US20120003054A1 (en) * | 2009-02-20 | 2012-01-05 | Toyota Jidosha Kabushiki Kaisha | Tap with drill and method for cutting internal thread |
-
1974
- 1974-05-17 GB GB22130/74A patent/GB1509912A/en not_active Expired
-
1975
- 1975-05-08 IE IE1033/75A patent/IE41050B1/xx unknown
- 1975-05-09 CA CA226,654A patent/CA1022775A/en not_active Expired
- 1975-05-12 ZA ZA00753040A patent/ZA753040B/xx unknown
- 1975-05-13 NL NL7505612A patent/NL7505612A/xx not_active Application Discontinuation
- 1975-05-14 IL IL47302A patent/IL47302A/xx unknown
- 1975-05-14 IN IN971/CAL/1975A patent/IN144887B/en unknown
- 1975-05-15 SE SE7505581A patent/SE7505581L/xx unknown
- 1975-05-15 FR FR7515147A patent/FR2270978A1/fr not_active Withdrawn
- 1975-05-15 BR BR3840/75D patent/BR7503011A/pt unknown
- 1975-05-16 JP JP50058458A patent/JPS50156790A/ja active Pending
- 1975-05-16 IT IT23421/75A patent/IT1038197B/it active
- 1975-05-16 ES ES437919A patent/ES437919A1/es not_active Expired
- 1975-05-16 DE DE2521938A patent/DE2521938C3/de not_active Expired
- 1975-05-19 AU AU81256/75A patent/AU500271B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2184046A (en) * | 1985-12-13 | 1987-06-17 | Skf & Dormer Tools | Twist drill |
GB2184046B (en) * | 1985-12-13 | 1990-01-24 | Skf & Dormer Tools | Twist drill |
EP2366478A3 (de) * | 2001-07-10 | 2012-04-18 | Mitsubishi Materials Corporation | Bohrer |
EP1923157A3 (de) * | 2001-07-10 | 2012-09-05 | Mitsubishi Materials Corporation | Bohrer |
GB2417447A (en) * | 2004-08-23 | 2006-03-01 | Osg Corp | A twist drill bit |
Also Published As
Publication number | Publication date |
---|---|
ES437919A1 (es) | 1977-01-01 |
IT1038197B (it) | 1979-11-20 |
CA1022775A (en) | 1977-12-20 |
DE2521938B2 (de) | 1979-07-05 |
IE41050B1 (en) | 1979-10-10 |
FR2270978A1 (de) | 1975-12-12 |
JPS50156790A (de) | 1975-12-18 |
DE2521938A1 (de) | 1975-11-27 |
ZA753040B (en) | 1976-04-28 |
IN144887B (de) | 1978-07-22 |
NL7505612A (nl) | 1975-11-19 |
AU8125675A (en) | 1976-11-25 |
IL47302A0 (en) | 1975-07-28 |
DE2521938C3 (de) | 1980-03-06 |
IL47302A (en) | 1978-03-10 |
BR7503011A (pt) | 1976-04-20 |
AU500271B2 (en) | 1979-05-17 |
SE7505581L (sv) | 1975-11-18 |
IE41050L (en) | 1975-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |