GB595908A - Improvements in or relating to the forming of undercut holes - Google Patents
Improvements in or relating to the forming of undercut holesInfo
- Publication number
- GB595908A GB595908A GB1737445A GB1737445A GB595908A GB 595908 A GB595908 A GB 595908A GB 1737445 A GB1737445 A GB 1737445A GB 1737445 A GB1737445 A GB 1737445A GB 595908 A GB595908 A GB 595908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hole
- tool
- axis
- bearing
- stem
- 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
- B23B51/0018—Drills for enlarging a hole
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Drilling And Boring (AREA)
Abstract
595,908. Drills and cutters. BRITISH UNITED SHOE MACHINERY CO., Ltd., and HENSHAW, J. N. July 7, 1945, No. 17374. [Classes 83 (iii)] A tapered undercut portion 21 is formed in a blind hole 11 in a work-piece 13 by a tool mounted for rotation about the axis of a bearing in a device of which the tool forms part and comprising a stem 1 substantially less in lateral dimensions than the diameter of the hole at the entering end of the latter and a cutting head 3 which extends further from the bearing axis than does the stem, the tool being entered into the hole without cutting the work until the bearing axis is progressively displaced laterally by the engagement with the edge of the hole of a frusto-conical portion 9 of a guide sleeve 7 either rigidly or rotatably attached to a bracket 8 fixed to the housing of an electric motor (not shown) which rotates the tool through a chuck 5. The complete device is loosely held by the operator and the guide sleeve rolls round the edge of the hole and, as it advances into the hole, displaces the axis of rotation of the tool until it coincides with the axis of the hole, thus forming the tapered undercut portion 21. The tool shown is relieved at 15. Specification 507,358 is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB595908A true GB595908A (en) | 1947-12-23 |
Family
ID=1733060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1737445A Expired GB595908A (en) | 1945-07-07 | Improvements in or relating to the forming of undercut holes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB595908A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0116154A2 (en) * | 1983-02-12 | 1984-08-22 | Fischerwerke Arthur Fischer GmbH & Co. KG | Undercutting tool |
| EP0211997A1 (en) * | 1985-08-30 | 1987-03-04 | Firma Mächtle GmbH | Undercutting tool |
| EP0345815A2 (en) * | 1988-06-10 | 1989-12-13 | DreBo Werkzeugfabrik GmbH | Dowel drill |
| EP0242638B1 (en) * | 1986-04-15 | 1989-12-20 | Karl Eischeid | Boring tool |
| WO1999015083A3 (en) * | 1997-09-22 | 1999-05-20 | Ethicon Inc | Apparatus and method for anchoring a cord-like element to a workpiece |
| EP1475172A1 (en) * | 2003-03-13 | 2004-11-10 | Powers Fasteners Europe BV | Drilling devices and methods for producing undercut holes |
| EP1837128A3 (en) * | 2006-03-22 | 2009-04-22 | Nihon Project Co., Ltd. | Drill, wall protector and drilling method |
-
1945
- 1945-07-07 GB GB1737445A patent/GB595908A/en not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0116154A2 (en) * | 1983-02-12 | 1984-08-22 | Fischerwerke Arthur Fischer GmbH & Co. KG | Undercutting tool |
| EP0116154A3 (en) * | 1983-02-12 | 1985-09-25 | Fischerwerke Arthur Fischer GmbH & Co. KG | Undercutting tool |
| EP0211997A1 (en) * | 1985-08-30 | 1987-03-04 | Firma Mächtle GmbH | Undercutting tool |
| EP0242638B1 (en) * | 1986-04-15 | 1989-12-20 | Karl Eischeid | Boring tool |
| EP0345815A2 (en) * | 1988-06-10 | 1989-12-13 | DreBo Werkzeugfabrik GmbH | Dowel drill |
| EP0345815A3 (en) * | 1988-06-10 | 1990-10-24 | DreBo Werkzeugfabrik GmbH | Dowel drill |
| WO1999015083A3 (en) * | 1997-09-22 | 1999-05-20 | Ethicon Inc | Apparatus and method for anchoring a cord-like element to a workpiece |
| US6041485A (en) * | 1997-09-22 | 2000-03-28 | Pedlick; Jack S. | System and method for anchoring a cord-like element to a workpiece |
| EP1475172A1 (en) * | 2003-03-13 | 2004-11-10 | Powers Fasteners Europe BV | Drilling devices and methods for producing undercut holes |
| US7188690B2 (en) | 2003-03-13 | 2007-03-13 | Paul Geuvers | Drilling device and method for producing undercut holes |
| EP1837128A3 (en) * | 2006-03-22 | 2009-04-22 | Nihon Project Co., Ltd. | Drill, wall protector and drilling method |
| US7686105B2 (en) | 2006-03-22 | 2010-03-30 | Nihon Project Co., Ltd. | Drill, wall protector and drilling method |
| CN101041190B (en) * | 2006-03-22 | 2010-11-03 | 日本工程株式会社 | Drill, wall protector and drilling method |
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