GB643600A - A mechanical torque amplifier - Google Patents
A mechanical torque amplifierInfo
- Publication number
- GB643600A GB643600A GB6589/48A GB658948A GB643600A GB 643600 A GB643600 A GB 643600A GB 6589/48 A GB6589/48 A GB 6589/48A GB 658948 A GB658948 A GB 658948A GB 643600 A GB643600 A GB 643600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- arm
- movement
- motor
- control
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G19/00—Servo-mechanisms with follow-up action, e.g. occurring in steps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
Abstract
643,600. Reversing gearing. GRETENER. E. March 2, 1948, No. 6589. Convention date, March 4, 1947. [Class 80(ii)] Power from a motor 3 is transmitted to a shaft 9 through one or the other of oppositely rotating bevel gears 1, 2 adapted to be alternatively engaged by a friction disc 5 axially slidable with its shaft 8 which is coupled at 10 to the output shaft 9. The movement of disc 5 is controlled by a control shaft 13 which is connected to one of the crown gears 14 of a differential 15, the other crown gear 16 of which is connected to shafts 8 and 9 by means of a coupling 12. Any angular displacement between the shafts 13 and 9 therefore results in a movement of the cage 17 of this differential which is transmitted by a shaft 19 and bevel gears 20, 21 to an arm 22. This arm 22 is connected by ropes 27, 28 wound for a few turns around a power driven drum 29 and connected to the ends of another arm 24 so that movement of the arm 22 in one direction or the other tightens one or other of the ropes 27, 28 on the drum 29 which acts as a capstan to operate the arm 24. The movement of arm 24 is transmitted through bevel gears 26, 33, shaft 34, gear and quadrant 35, 36 and lever 37, to actuate the shaft 8 and disc 5 to engage one or other of bevels 1, 2 to effect a drive of the shaft 9 in a direction to reduce the angular displacement between the control and output shafts 13, 9 and restore the balance of the differential 15. The capstan drum 29 may be driven by a separate motor 30 or it may be driven from the motor 3. A variable ratio transmission may be incorporated in the drive from the motor 3 to the bevels 1, 2 which is controlled so that the speed of these bevels is maintained just above that required of the shaft 9 so that slip is reduced to a minimum. In order to prevent " hunting " in the mechanism a hydraulic damping device may be introduced in order to make the control responsive in addition to the first derivative of the speed difference between the control and output shafts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH643600X | 1947-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB643600A true GB643600A (en) | 1950-09-20 |
Family
ID=4525606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6589/48A Expired GB643600A (en) | 1947-03-04 | 1948-03-02 | A mechanical torque amplifier |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB643600A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1297429B (en) * | 1965-11-16 | 1969-06-12 | Compteurs Comp D | Digital-to-analog converter for converting digitally coded signals into an analog mechanical adjustment |
-
1948
- 1948-03-02 GB GB6589/48A patent/GB643600A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1297429B (en) * | 1965-11-16 | 1969-06-12 | Compteurs Comp D | Digital-to-analog converter for converting digitally coded signals into an analog mechanical adjustment |
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