FR2392775A1 - Screw-driver for adjusting potentiometer - has shafts from opposed ends of housing and coupled by gear train - Google Patents
Screw-driver for adjusting potentiometer - has shafts from opposed ends of housing and coupled by gear trainInfo
- Publication number
- FR2392775A1 FR2392775A1 FR7717608A FR7717608A FR2392775A1 FR 2392775 A1 FR2392775 A1 FR 2392775A1 FR 7717608 A FR7717608 A FR 7717608A FR 7717608 A FR7717608 A FR 7717608A FR 2392775 A1 FR2392775 A1 FR 2392775A1
- Authority
- FR
- France
- Prior art keywords
- housing
- shafts
- gear train
- driver
- screw
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
Two shafts (2, 3) project co-axially from the opposite ends of a housing (1) containing a gear train. The gearing may be of the planetary type. The rotation of one of the shafts provides a reduced rotation of the other shaft, and the reverse action produces multiplication. The housing (1) may contain a group of planetary gear wheels (6, 9, 10, 12). The housing (1) may incorporate an internally toothed crown-wheel (6), while one shaft (2) terminates in a plate (7) supporting two planetary pinions. The other shaft extends in the form of a central pinion which engages the two planetary pinions (10, 11).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7717608A FR2392775A1 (en) | 1977-06-02 | 1977-06-02 | Screw-driver for adjusting potentiometer - has shafts from opposed ends of housing and coupled by gear train |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7717608A FR2392775A1 (en) | 1977-06-02 | 1977-06-02 | Screw-driver for adjusting potentiometer - has shafts from opposed ends of housing and coupled by gear train |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2392775A1 true FR2392775A1 (en) | 1978-12-29 |
Family
ID=9191855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7717608A Withdrawn FR2392775A1 (en) | 1977-06-02 | 1977-06-02 | Screw-driver for adjusting potentiometer - has shafts from opposed ends of housing and coupled by gear train |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2392775A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264559A2 (en) * | 1986-10-21 | 1988-04-27 | Raimund Wilhelm | Spindle with switchable speed |
-
1977
- 1977-06-02 FR FR7717608A patent/FR2392775A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264559A2 (en) * | 1986-10-21 | 1988-04-27 | Raimund Wilhelm | Spindle with switchable speed |
EP0264559A3 (en) * | 1986-10-21 | 1989-10-25 | Raimund Wilhelm | Spindle with switchable speed |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |