GB570229A - Improvements in machines for grinding drills and similar tools - Google Patents
Improvements in machines for grinding drills and similar toolsInfo
- Publication number
- GB570229A GB570229A GB481744A GB481744A GB570229A GB 570229 A GB570229 A GB 570229A GB 481744 A GB481744 A GB 481744A GB 481744 A GB481744 A GB 481744A GB 570229 A GB570229 A GB 570229A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drills
- bracket
- adjustable
- wheel
- pivot
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
570,229. Sharpening drills &c. FIELDING, D. T. E. May 15, 1944, No. 4817. [Class 60] A machine for sharpening twist drills comprises means for supporting and passing the drill across the vertical face of a grinding- wheel, the means consisting in a bracket mounted on a vertical pivot on a second bracket which is mounted in turn on a vertically adjustable horizontal pivot, the grinding- wheel being mounted on an adjustable slide ; devices for positioning the drills are provided. The drill A<1>, Fig. 1, is carried on fixed and adjustable supports E<1>, E<2> on a bracket E which is mounted on a vertical pivot f, on a second bracket F mounted on a horizontal pivot h adjustable vertically by a hand-set cam h<6>. The bracket E is held in an adjusted position round the pivot f by a set-screw &c. f, and when in position for thinning, the point of the drill is engaged by a stop d to prevent movement across the face of the wheel. The wheel A is driven by a motor B carried by a slide C adjusted by a hand-operated cam c<1> engaging an adjustable stud c<5>. The drills are correctly placed in the supports by a peg e<7>, or by a notched member e<8>, Fig. 12. Small drills may be mounted in a chuck and are centred by means of a device comprising plates k<1>, k<2>, Figs. 7, 7a, with their operating faces k<3>, k<4> in line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB481744A GB570229A (en) | 1944-05-15 | 1944-05-15 | Improvements in machines for grinding drills and similar tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB481744A GB570229A (en) | 1944-05-15 | 1944-05-15 | Improvements in machines for grinding drills and similar tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB570229A true GB570229A (en) | 1945-06-27 |
Family
ID=9784361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB481744A Expired GB570229A (en) | 1944-05-15 | 1944-05-15 | Improvements in machines for grinding drills and similar tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB570229A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833420A1 (en) * | 1978-07-29 | 1980-02-07 | Reiling | Support for regrinding of twist drill - has carriage slidably mounted on baseplate and longitudinally guided in predetermined direction |
US5001868A (en) * | 1989-03-01 | 1991-03-26 | Werner Jankus | Apparatus for grinding a point on a tungsten electrode |
TWI551398B (en) * | 2012-05-25 | 2016-10-01 | Phown Entpr Co Ltd Sa | Drilling wheel grinding machine wheel position automatic adjustment method and its device and drive device |
-
1944
- 1944-05-15 GB GB481744A patent/GB570229A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833420A1 (en) * | 1978-07-29 | 1980-02-07 | Reiling | Support for regrinding of twist drill - has carriage slidably mounted on baseplate and longitudinally guided in predetermined direction |
US5001868A (en) * | 1989-03-01 | 1991-03-26 | Werner Jankus | Apparatus for grinding a point on a tungsten electrode |
TWI551398B (en) * | 2012-05-25 | 2016-10-01 | Phown Entpr Co Ltd Sa | Drilling wheel grinding machine wheel position automatic adjustment method and its device and drive device |
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