GB190009930A - Improvements in Drill Grinding Machines. - Google Patents
Improvements in Drill Grinding Machines.Info
- Publication number
- GB190009930A GB190009930A GB190009930DA GB190009930A GB 190009930 A GB190009930 A GB 190009930A GB 190009930D A GB190009930D A GB 190009930DA GB 190009930 A GB190009930 A GB 190009930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piece
- holder
- drill
- rest
- grinding
- 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
Abstract
9930. Guest, J. J. May 30. Sharpening twist drills &c. The apparatus is shown in plan in Fig. 1. The drill is laid in a V-shaped holder c adapted to be swung about a pin c<3>, the axis of which intersects the line of the apex of the V at the face of the grinding-disc a, and is somewhat inclined to the plane bisecting the V. The pin c<3> is mounted in a piece c<2> adjustably secured on a stud h<2> which is clamped, parallel to the spindle of the grinding-disc, in the bracket a<7>. The holder is recessed at c<6>, to accommodate the shanks of the drills, and is fitted with an adjustable tail-rest g, g<3> provided with a feedscrew g<4>. A lip rest f, Figs. 3 and 4, is secured to the front end of the holder ; the drill is held against this by a pivoted piece e, having at one end a notched plate e<2> to engage the lip of the drill, and at the other bearing-piece e<4>, to rest on its body ; this piece e is mounted on a spring plunger d<2> fitted to slide in a socket in the holder.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190009930T | 1900-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190009930A true GB190009930A (en) | 1901-02-09 |
Family
ID=32148610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190009930D Expired GB190009930A (en) | 1900-05-30 | 1900-05-30 | Improvements in Drill Grinding Machines. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190009930A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2426478A (en) * | 1942-09-01 | 1947-08-26 | Jack Van H Whipple | Drill grinder |
US2511055A (en) * | 1945-04-13 | 1950-06-13 | Ganz Joseph | Device to sharpen twist drills |
US2848852A (en) * | 1955-02-23 | 1958-08-26 | Gordon T Rosholt | Twist drill-bit sharpening unit |
-
1900
- 1900-05-30 GB GB190009930D patent/GB190009930A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2426478A (en) * | 1942-09-01 | 1947-08-26 | Jack Van H Whipple | Drill grinder |
US2511055A (en) * | 1945-04-13 | 1950-06-13 | Ganz Joseph | Device to sharpen twist drills |
US2848852A (en) * | 1955-02-23 | 1958-08-26 | Gordon T Rosholt | Twist drill-bit sharpening unit |
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