GB183005A - Improvements in drills - Google Patents
Improvements in drillsInfo
- Publication number
- GB183005A GB183005A GB14141/21A GB1414121A GB183005A GB 183005 A GB183005 A GB 183005A GB 14141/21 A GB14141/21 A GB 14141/21A GB 1414121 A GB1414121 A GB 1414121A GB 183005 A GB183005 A GB 183005A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- drill
- edges
- cutting
- drills
- 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
- B23B2251/18—Configuration of the drill point
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/48—Chip breakers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
183,005. Woods, N. E. May 20, 1921. Drills.-Twist drills have one or more grooves 10, 11, at different distances from the drill axis, continued into the cutting-edges 8 and dividing the latter into separate cutting-edges. The grooves may be semicircular in section before twisting the drill, or semi-elliptical and deepest near the edge of the drill. The grooves may be forged, cast, or milled. The trailing edges of the cutting portions 2, 3, are rounded off, to give an additional passage for lubricant and increased chip space, and to facilitate tempering during manufacture. The grooves more distant from the drill axis are the deepest.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14141/21A GB183005A (en) | 1921-05-20 | 1921-05-20 | Improvements in drills |
| FR536208D FR536208A (en) | 1921-05-20 | 1921-05-23 | Twist drill |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14141/21A GB183005A (en) | 1921-05-20 | 1921-05-20 | Improvements in drills |
| FR536208T | 1921-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB183005A true GB183005A (en) | 1922-07-20 |
Family
ID=10035742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14141/21A Expired GB183005A (en) | 1921-05-20 | 1921-05-20 | Improvements in drills |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR536208A (en) |
| GB (1) | GB183005A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1138871A1 (en) * | 2000-03-27 | 2001-10-04 | HILTI Aktiengesellschaft | Twist drill |
| US7137461B2 (en) | 2002-10-03 | 2006-11-21 | Black & Decker, Inc. | Masonry drilling tool |
| US10661362B2 (en) | 2016-06-15 | 2020-05-26 | Kennametal Inc. | Fluted cutting tool configuration and method therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE524021A (en) * | 1951-10-12 |
-
1921
- 1921-05-20 GB GB14141/21A patent/GB183005A/en not_active Expired
- 1921-05-23 FR FR536208D patent/FR536208A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1138871A1 (en) * | 2000-03-27 | 2001-10-04 | HILTI Aktiengesellschaft | Twist drill |
| US6571890B2 (en) | 2000-03-27 | 2003-06-03 | Hilti Aktiengesellschaft | Twist drill |
| US7137461B2 (en) | 2002-10-03 | 2006-11-21 | Black & Decker, Inc. | Masonry drilling tool |
| US10661362B2 (en) | 2016-06-15 | 2020-05-26 | Kennametal Inc. | Fluted cutting tool configuration and method therefor |
| GB2553202B (en) * | 2016-06-15 | 2022-06-29 | Hanita Metal Works Ltd | Fluted cutting tool configuration and method therefor |
| DE102017112417B4 (en) | 2016-06-15 | 2023-08-31 | Hanita Metal Works Ltd. | CUTTING TOOL |
Also Published As
| Publication number | Publication date |
|---|---|
| FR536208A (en) | 1922-04-28 |
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