GB717346A - Improvements in or relating to electrically driven remote position indication or control arrangements - Google Patents
Improvements in or relating to electrically driven remote position indication or control arrangementsInfo
- Publication number
- GB717346A GB717346A GB643252A GB643252A GB717346A GB 717346 A GB717346 A GB 717346A GB 643252 A GB643252 A GB 643252A GB 643252 A GB643252 A GB 643252A GB 717346 A GB717346 A GB 717346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- motor
- cam
- contact
- resistor
- 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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B9/00—Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user, e.g. bridge to engine room orders in ships
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Motor And Converter Starters (AREA)
- Control Of Position Or Direction (AREA)
Abstract
717,346. Control of D. C. motors. GODWILLMAN, A. March 10, 1953 [March 12, 1952], No. 6432/52. Class 38(3) A remote control system comprises a reversing switch S which, when moved from neutral contact N to forward contact F, completes a circuit from battery B over cam-operated switch G to energize solenoids 1, 3. An electric motor M is thus started with its armature connected in series with field winding W and resistor R. After a predetermined period, the resistor R is short-circuited by means of a time-delay relay P. A motor-driven cam C eventually opens the switch G to disconnect the motor which continues to rotate however due to inertia, thereby closing switch H and operating solenoids 2, 4, for reversing the drive. The switch H is re-opened to stop the motor before the load begins to reverse, the resistor R being included in circuit during the oscillating period. When the switch S is returned to the contact N a circuit is completed over switches J, K, to connect the motor for return to its neutral position in which switch J opens to stop the drive. Operation of the motor in the reverse direction is effected by actuation of the switch S to engage contact A. The arrangement described may be extended to provide a system having seven positions of the switch S for controlling the operation of the cam to a corresponding number of positions, Fig. 7 (not shown). The cam C may be circular or in the form of a rack driven by a pinion. The application to forward and reverse control arrangements for ships is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB643252A GB717346A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to electrically driven remote position indication or control arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB643252A GB717346A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to electrically driven remote position indication or control arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB717346A true GB717346A (en) | 1954-10-27 |
Family
ID=9814375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB643252A Expired GB717346A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to electrically driven remote position indication or control arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB717346A (en) |
-
1952
- 1952-03-12 GB GB643252A patent/GB717346A/en not_active Expired
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