DE229992C - - Google Patents
Info
- Publication number
- DE229992C DE229992C DENDAT229992D DE229992DA DE229992C DE 229992 C DE229992 C DE 229992C DE NDAT229992 D DENDAT229992 D DE NDAT229992D DE 229992D A DE229992D A DE 229992DA DE 229992 C DE229992 C DE 229992C
- Authority
- DE
- Germany
- Prior art keywords
- drilling
- spindles
- cranks
- workpiece
- head
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims description 16
- 230000002441 reversible effect Effects 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
- B23B39/163—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles having crank pin transmissions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE229992C true DE229992C (OSRAM) |
Family
ID=490246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT229992D Active DE229992C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE229992C (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079274A (en) * | 1989-03-15 | 1992-01-07 | The Dow Chemical Company | Process for preparing absorptive porous resin beads |
-
0
- DE DENDAT229992D patent/DE229992C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079274A (en) * | 1989-03-15 | 1992-01-07 | The Dow Chemical Company | Process for preparing absorptive porous resin beads |
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