GB546926A - Improvements in tool jigs - Google Patents
Improvements in tool jigsInfo
- Publication number
- GB546926A GB546926A GB874041A GB874041A GB546926A GB 546926 A GB546926 A GB 546926A GB 874041 A GB874041 A GB 874041A GB 874041 A GB874041 A GB 874041A GB 546926 A GB546926 A GB 546926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bush
- head
- screw
- slip
- jig
- 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
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
- B23B49/023—Bushings and their connection to the template
Abstract
546,926. Jigs. COLLINSON, J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 10, 1941, No. 8740. [Class 83 (iii)] A drilling &c. jig bush of the slip variety is secured in position by a cheese headed screw 7 engaging a surface 9 formed by undercutting the head 4 of the bush preferably to the extent of the depth of the grinding clearance groove 2 so as to expose a shoulder on the shank 3 of the bush. The screw 7 may be sunk into a counterbore in the jig body so that the head may directly engage this shoulder. The head of the screw 7 is flatted at 8 and in the unlocked position this flat is parallel to the flat 9. A second undercut may be formed at 13 to facilitate the extraction of the slip bush by means of a forked tool. Where the hole in the jig has a permanent lining bush to receive th slip bush the screw head is large enough to extend across this lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB874041A GB546926A (en) | 1941-07-10 | 1941-07-10 | Improvements in tool jigs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB874041A GB546926A (en) | 1941-07-10 | 1941-07-10 | Improvements in tool jigs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB546926A true GB546926A (en) | 1942-08-05 |
Family
ID=9858346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB874041A Expired GB546926A (en) | 1941-07-10 | 1941-07-10 | Improvements in tool jigs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB546926A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497679A (en) * | 1945-08-25 | 1950-02-14 | Richard E Maples | Adjustable bushing for drill jigs |
| US2734403A (en) * | 1956-02-14 | Timpner |
-
1941
- 1941-07-10 GB GB874041A patent/GB546926A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734403A (en) * | 1956-02-14 | Timpner | ||
| US2497679A (en) * | 1945-08-25 | 1950-02-14 | Richard E Maples | Adjustable bushing for drill jigs |
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