GB905551A - Improvements relating to trackless conveyors - Google Patents
Improvements relating to trackless conveyorsInfo
- Publication number
- GB905551A GB905551A GB36297/57A GB3629757A GB905551A GB 905551 A GB905551 A GB 905551A GB 36297/57 A GB36297/57 A GB 36297/57A GB 3629757 A GB3629757 A GB 3629757A GB 905551 A GB905551 A GB 905551A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vehicle
- steering
- coils
- cable
- current
- 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
- 239000004020 conductor Substances 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0259—Control of position or course in two dimensions specially adapted to land vehicles using magnetic or electromagnetic means
- G05D1/0265—Control of position or course in two dimensions specially adapted to land vehicles using magnetic or electromagnetic means using buried wires
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
905,551. Automatic steering-control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 21, 1958 [Nov. 21, 1957], No. 36297/57. Class 38 (4). [Also in Group XL (c)] In a system in which means responsive to the magnetic field of a conductor carrying current controls the steering of a vehicle to cause it to follow the course of the conductor automatically, the current is modulated to control the vehicle otherwise than by steering. In Fig. 1, coils 2 and 3 are mounted on a moving vehicle (not shown), so that when they are not symmetrical relative to a cable 1, carrying R.F. current and lying on or beneath the ground, a difference signal derived from a unit 9 operates a steering motor 10 in the appropriate direction to restore the vehicle to a symmetrical position relative to the cable during its travel. Coils 2 and 3 are mounted on an arm which swings with the front wheels of the vehicle to increase sensitivity. Should the vehicle wander off course sufficiently, the sum of the signals from coils 2 and 3 derived from a unit 11 is unsufficient to maintain operation of a relay RL1 so that the vehicle is stopped by disconnecting its driving motor 14 from battery 13. A brake (not shown), may also be applied simultaneously. Where a number of vehicles is involved, each may respond to a different frequency so that different routes are followed. Sections of the cable common to more than one route are energized at several frequencies by setting up plug-boards associated with each frequency. The supplies may be pulse modulated to operate relays or selector switches on the vehicles to remotely stop, load or unload them.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36297/57A GB905551A (en) | 1957-11-21 | 1957-11-21 | Improvements relating to trackless conveyors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36297/57A GB905551A (en) | 1957-11-21 | 1957-11-21 | Improvements relating to trackless conveyors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB905551A true GB905551A (en) | 1962-09-12 |
Family
ID=10386837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36297/57A Expired GB905551A (en) | 1957-11-21 | 1957-11-21 | Improvements relating to trackless conveyors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB905551A (en) |
-
1957
- 1957-11-21 GB GB36297/57A patent/GB905551A/en not_active Expired
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