BE386803A - - Google Patents
Info
- Publication number
- BE386803A BE386803A BE386803DA BE386803A BE 386803 A BE386803 A BE 386803A BE 386803D A BE386803D A BE 386803DA BE 386803 A BE386803 A BE 386803A
- Authority
- BE
- Belgium
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
- B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB523132A GB396134A (en) | 1932-02-22 | 1932-02-22 | Improvements in drilling machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE386803A true BE386803A (zh) |
Family
ID=9792172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE386803D BE386803A (zh) | 1932-02-22 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE386803A (zh) |
| GB (1) | GB396134A (zh) |
-
0
- BE BE386803D patent/BE386803A/xx unknown
-
1932
- 1932-02-22 GB GB523132A patent/GB396134A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB396134A (en) | 1933-08-03 |