GB305939A - Improvements in and relating to overload couplings for electrically operated worm gears - Google Patents
Improvements in and relating to overload couplings for electrically operated worm gearsInfo
- Publication number
- GB305939A GB305939A GB4544/29A GB454429A GB305939A GB 305939 A GB305939 A GB 305939A GB 4544/29 A GB4544/29 A GB 4544/29A GB 454429 A GB454429 A GB 454429A GB 305939 A GB305939 A GB 305939A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- worm
- switch
- motor
- displacement
- 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
- G05G15/00—Mechanical devices for initiating a movement automatically due to a specific cause
- G05G15/08—Mechanical devices for initiating a movement automatically due to a specific cause due to the load or torque on a member, e.g. if exceeding a predetermined value thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Gear Transmission (AREA)
Abstract
305,939. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Feb. 10, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Driving-arrangements; protective or safety devices, auxiliary.-A worm-shaft c driven by an electric motor a is maintained under axial elastic pressure which is normally sufficient to maintain the worm d in engagement with the worm wheel c driving, for example, a conveyer belt f, but in the event of overload, the pressure is overcome by the action of the worm wheel and the shaft is displaced to an extent sufficient to disengage the worm from the worm-wheel, means being also provided whereby the displacement of the shaft cuts off the supply to the motor. The motor drives through a coupling b and the shaft is held against axial displacement by a spring: k, the pressure of which may be adjustable. Movement of the shaft opens a switch g whereby the holding coil h of the motor switch i is deenergized. The displacement of the shaft may cause a switch such as g to close and energize a coil which opens the switch i.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE305939X | 1928-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB305939A true GB305939A (en) | 1929-12-12 |
Family
ID=6120959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4544/29A Expired GB305939A (en) | 1928-02-10 | 1929-02-11 | Improvements in and relating to overload couplings for electrically operated worm gears |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB305939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2657011A (en) * | 1950-04-01 | 1953-10-27 | Continental Supply Company | Means for controlling hoists and winches |
| US5063316A (en) * | 1989-04-10 | 1991-11-05 | Ming C E | Automatic door protective reversing switch with worm gear |
-
1929
- 1929-02-11 GB GB4544/29A patent/GB305939A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2657011A (en) * | 1950-04-01 | 1953-10-27 | Continental Supply Company | Means for controlling hoists and winches |
| US5063316A (en) * | 1989-04-10 | 1991-11-05 | Ming C E | Automatic door protective reversing switch with worm gear |
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