FR680299A - Lapping machines - Google Patents
Lapping machinesInfo
- Publication number
- FR680299A FR680299A FR680299DA FR680299A FR 680299 A FR680299 A FR 680299A FR 680299D A FR680299D A FR 680299DA FR 680299 A FR680299 A FR 680299A
- Authority
- FR
- France
- Prior art keywords
- lapping machines
- lapping
- machines
- 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
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR680299T | 1929-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR680299A true FR680299A (en) | 1930-04-28 |
Family
ID=9022173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR680299D Expired FR680299A (en) | 1929-08-14 | 1929-08-14 | Lapping machines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR680299A (en) |
-
1929
- 1929-08-14 FR FR680299D patent/FR680299A/en not_active Expired
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