GB604862A - Improvements relating to hole-cutting tools - Google Patents
Improvements relating to hole-cutting toolsInfo
- Publication number
- GB604862A GB604862A GB3305445A GB3305445A GB604862A GB 604862 A GB604862 A GB 604862A GB 3305445 A GB3305445 A GB 3305445A GB 3305445 A GB3305445 A GB 3305445A GB 604862 A GB604862 A GB 604862A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutter
- rod
- head
- cut
- arm
- 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
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/386—Draw punches, i.e. punch and die assembled on opposite sides of a workpiece via a connecting member passing through an aperture in the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/044—Drills for trepanning with core holding devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
604,862. Drills; drilling-machines. DRAKE & GORHAM, Ltd., and SMALLBONE, E. J. Dec. 6, 1945, No. 33054. [Class 83 (iii)] In an annular cutting tool having a detachable ring q of cutting teeth secured to an interchangeable head d, a central rod f mounted in the cutter body a and a pivoted arm g at the forward end of the rod, the rod is slidable axially in. the body to draw the arm against the rear surface of the material to be cut and the arm extends on both sides of the pivot to clamp the cut-out core against the cutter head for removal therewith. Feeding pressure is applied by a knurled nut n and a spring k fitted between loose collars l, m and the body engages the head through a spigot c and tongue e. The cutter may be rotated by tommy-bars b or a ratchet may be provided on the body to engage a handle having a pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3305445A GB604862A (en) | 1945-12-06 | 1945-12-06 | Improvements relating to hole-cutting tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3305445A GB604862A (en) | 1945-12-06 | 1945-12-06 | Improvements relating to hole-cutting tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB604862A true GB604862A (en) | 1948-07-12 |
Family
ID=10347913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3305445A Expired GB604862A (en) | 1945-12-06 | 1945-12-06 | Improvements relating to hole-cutting tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB604862A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2787324A (en) * | 1954-03-15 | 1957-04-02 | Joel T Hartmeister | Wallboard cutter |
| CN104942872A (en) * | 2015-05-14 | 2015-09-30 | 重庆大学 | Method for achieving punch rod moving through voice coil motor during numerical control punching and coining |
-
1945
- 1945-12-06 GB GB3305445A patent/GB604862A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2787324A (en) * | 1954-03-15 | 1957-04-02 | Joel T Hartmeister | Wallboard cutter |
| CN104942872A (en) * | 2015-05-14 | 2015-09-30 | 重庆大学 | Method for achieving punch rod moving through voice coil motor during numerical control punching and coining |
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