GB756579A - Improvements relating to electromagnets for lifting purposes - Google Patents
Improvements relating to electromagnets for lifting purposesInfo
- Publication number
- GB756579A GB756579A GB3405553A GB3405553A GB756579A GB 756579 A GB756579 A GB 756579A GB 3405553 A GB3405553 A GB 3405553A GB 3405553 A GB3405553 A GB 3405553A GB 756579 A GB756579 A GB 756579A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lifting
- magnet
- electromagnets
- generator
- track
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
756,579. Supply systems for lifting magnets. ELECTROMAGNETS, Ltd. Oct. 11, 1954 [Dec. 8, 1953], No. 34055/53. Drawings to Specification. Class 38 (4). A lifting magnet is energized directly from a D.C. generator driven by an A.C. motor and provided with a separate exciter which feeds the field of the generator over a manually controlled calibrated multi-step reversing potentiometer, whereby the lifting capacity of the magnet may be determined as required and the polarity of the generator reversed for dropping the load. Spring bias must be overcome in order to move the operating member of the potentiometer into the reversing end of its track, whilst at the other end of the track-at which over-energization of the magnet obtains-movement of the operating member can also only be made against spring bias.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3405553A GB756579A (en) | 1953-12-08 | 1953-12-08 | Improvements relating to electromagnets for lifting purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3405553A GB756579A (en) | 1953-12-08 | 1953-12-08 | Improvements relating to electromagnets for lifting purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB756579A true GB756579A (en) | 1956-09-05 |
Family
ID=10360801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3405553A Expired GB756579A (en) | 1953-12-08 | 1953-12-08 | Improvements relating to electromagnets for lifting purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB756579A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008121198A1 (en) * | 2007-03-29 | 2008-10-09 | Caterpillar Inc. | System and method for controlling electromagnet lift power for material handlers |
-
1953
- 1953-12-08 GB GB3405553A patent/GB756579A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008121198A1 (en) * | 2007-03-29 | 2008-10-09 | Caterpillar Inc. | System and method for controlling electromagnet lift power for material handlers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB744858A (en) | Improvements in valves | |
GB1284004A (en) | Fastener driving device | |
GB1033963A (en) | A friction-producing device | |
ES371969A1 (en) | Clutch controlled by engine speed and transmission selector | |
GB756579A (en) | Improvements relating to electromagnets for lifting purposes | |
GB982194A (en) | Tape control apparatus | |
GB1020005A (en) | Improvements relating to feeding devices for furnaces | |
GB875402A (en) | Improvements in and relating to a fluid control valve | |
GB805065A (en) | Power operating and control system for tractors | |
GB947530A (en) | Improvements in or relating to grinding mills, pelletising mills and like apparatus | |
GB1024112A (en) | Electro-magnetic devices | |
GB1202286A (en) | Rotary actuating device | |
GB789726A (en) | Improvements relating to electro-mechanical vibrators | |
GB1462872A (en) | Actuator mechanism for a fuel injection pump control member | |
GB926562A (en) | Control circuit for electromagnetic couplings | |
GB752857A (en) | Improvements in or relating to a synchronizing system for motors travelling between limits | |
GB1144232A (en) | Flow control apparatus for fluent magnetic materials | |
GB551603A (en) | Improvements in or relating to apparatus for the remote control of engines and the like | |
CHUCHKIN et al. | An automated system for studying the dependence of photosynthesis in higher plants on mineral nutrition(Automated system for studying effect of mineral nutrient solution composition on photosynthesis in higher plants) | |
GB702591A (en) | An electrical mechanical counter | |
GB607093A (en) | Improvements in or relating to friction gearing | |
GB1065524A (en) | Improvements relating to electromagnetic arrangements | |
GB562452A (en) | Improvements in or relating to apparatus for the remote control of engines and the like | |
GB1056888A (en) | Improvements in or relating to electro-magnetic actuators | |
GB656465A (en) | Improvements in automatic shaft positioning apparatus |