GB149912A - Improvements in and relating to drilling machines - Google Patents
Improvements in and relating to drilling machinesInfo
- Publication number
- GB149912A GB149912A GB22494/20A GB2249420A GB149912A GB 149912 A GB149912 A GB 149912A GB 22494/20 A GB22494/20 A GB 22494/20A GB 2249420 A GB2249420 A GB 2249420A GB 149912 A GB149912 A GB 149912A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill
- drilling
- socket
- spindle
- holder
- 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
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
- B23Q27/006—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass by rolling without slippage two bodies of particular shape relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/04—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring polygonal or other non-circular holes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Soil Working Implements (AREA)
Abstract
149,912. Blake, G., (Assignee of Bartholomaus, R.). July 28, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Turning; drilling-machines; drills and cutters; works-holders.-An attachment bv which a drilling-machine may be adapted to drill polygonal holes comprises a base 1 having two columns 9 upon one of which is pivoted a work-holder 23, the jaws 13 of which are operated by a spindle 14 having right and left hand threads of different pitches. A stop 24 and locking-pin 22 ensure exact positioning of the work-holder. The drill 2 is fastened in a taper-bored socket 25 which is connected to a rod 6 having a transverse pin engaging slots 4 in the spindle 7 of the machine. The drill is fed by means of a threaded sleeve 15 secured against longitudinal movement on the socket and actuated by a hand-wheel 12 and nut 16 rotatably mounted on a standard 18. The socket may be guided at its lower end by a plate 19. The drill and its guide cheeks for drilling a square-hole are shown in Fig. 3. The guide cheeks are retained in guide plates 8 by plates 10 and are adjusted by a screw 17. The drill, having a section bounded by three circular arcs, may be made from a rod 34 mounted in a dividing head 35, Fig. 8, so that its centre line is offset from the centre line of the cutter-head by an amount equal to the radius of the required arcs. One face of the drill is then turned by the rotary cutters 33 and the dividing head turned through 120 degrees to turn the next face, and so on. The drill faces are finally ground.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK149912X | 1919-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB149912A true GB149912A (en) | 1921-01-06 |
Family
ID=8149679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22494/20A Expired GB149912A (en) | 1919-07-28 | 1920-07-28 | Improvements in and relating to drilling machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB149912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581963A (en) * | 2012-02-18 | 2012-07-18 | 中山市诚盛建材开发有限公司 | Slicing machine |
| CN108127741A (en) * | 2017-12-21 | 2018-06-08 | 苏州时开纽数控装备有限公司 | Square auger of carpenter |
-
1920
- 1920-07-28 GB GB22494/20A patent/GB149912A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581963A (en) * | 2012-02-18 | 2012-07-18 | 中山市诚盛建材开发有限公司 | Slicing machine |
| CN102581963B (en) * | 2012-02-18 | 2014-12-24 | 中山市诚盛建材开发有限公司 | Slicing machine |
| CN108127741A (en) * | 2017-12-21 | 2018-06-08 | 苏州时开纽数控装备有限公司 | Square auger of carpenter |
| CN108127741B (en) * | 2017-12-21 | 2023-02-28 | 苏州时开纽数控装备有限公司 | Carpenter's square hole drill |
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