GB541967A - Improvements in and relating to ignition magnetos provided with a rotary cylindricalmagnet - Google Patents
Improvements in and relating to ignition magnetos provided with a rotary cylindricalmagnetInfo
- Publication number
- GB541967A GB541967A GB9642/40A GB964240A GB541967A GB 541967 A GB541967 A GB 541967A GB 9642/40 A GB9642/40 A GB 9642/40A GB 964240 A GB964240 A GB 964240A GB 541967 A GB541967 A GB 541967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridges
- magnet
- armature
- core
- poles
- 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/20—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Power Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
541,967. Magnetos. BERNARD, J. June 3, 1940, No. 9642. Convention date, July 3, 1939. [Class 35] In a magneto having a rotary cylindrical magnet with field blocks of spiked form forming poles which act on the armature poles, the field blocks include solid magnetic members clamped against the ends of the magnet and of cylindrical external form to receive laminated flux distributers which are mounted on cylindrical rows of the blocks, the inner peripheries of the rims not being in contact with the magnet. In the form shown, the field blocks 3 are clamped, by a nut 6 and a flange 5 on the shaft, against the ends of the magnet 4 and taper inwardly at their cylindrical outer surfaces on which are mounted the flux distributers 8 in the form of rings having integral polar projections. These projections co-operate with pairs of similarly laminated armature poles 13, 14 cast into the frame and joined in pairs on both sides of the armature coil 21 by laminated bridges 19. The magnetic circuit is completed by the laminated armature core 22 at right-angles to the shaft. The various sets of laminae are secured together by insulated rivets and the armature assembly is secured by screws 23 passing through the core 22 and bridges 19 into the frame. Paper or other insulating sheet is inserted between the bridges and poles 8 or between the bridges and core 22, in which case the bridge plates are slit to preclude closed circuits around the core. The form shown has four polar projections on each ring 8, the two rings being displaced by 45 degrees from polar coincidence.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR541967X | 1939-07-03 | ||
FR2335378X | 1939-07-03 | ||
US445894A US2338378A (en) | 1939-07-03 | 1942-06-05 | Black-out window shade |
Publications (1)
Publication Number | Publication Date |
---|---|
GB541967A true GB541967A (en) | 1941-12-19 |
Family
ID=27249045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9642/40A Expired GB541967A (en) | 1939-07-03 | 1940-06-03 | Improvements in and relating to ignition magnetos provided with a rotary cylindricalmagnet |
Country Status (2)
Country | Link |
---|---|
US (1) | US2338378A (en) |
GB (1) | GB541967A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146824A (en) * | 1963-01-08 | 1964-09-01 | Roger L Veilleux | Apparatus for covering truck bodies |
US3434252A (en) * | 1967-03-31 | 1969-03-25 | Howard Franklin Dobson | Guard for fire and smoke protection |
US20090056886A1 (en) * | 2007-08-27 | 2009-03-05 | William Bennett Shaw | Retractable flexible sound reduction system and method for doorways |
-
1940
- 1940-06-03 GB GB9642/40A patent/GB541967A/en not_active Expired
-
1942
- 1942-06-05 US US445894A patent/US2338378A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2338378A (en) | 1944-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2059518A (en) | Magneto rotor | |
US1991046A (en) | Process for making magneto rotors | |
GB444642A (en) | Improvements in and relating to dynamo electric machines | |
KR930015263A (en) | Electromagnetic transducer with multipole permanent magnet | |
US2230878A (en) | Magnetoelectric ignition apparatus | |
GB541967A (en) | Improvements in and relating to ignition magnetos provided with a rotary cylindricalmagnet | |
GB504800A (en) | Improvements in or relating to laminated magnetic elements | |
US2516380A (en) | Alternating current generator | |
US2676281A (en) | Synchronous motor | |
US2048375A (en) | Magneto-electric generator | |
US1620060A (en) | Ignition machine | |
GB392405A (en) | Improvements in or relating to alternating current motors, more particularly for electric clocks | |
US1843222A (en) | Rotor for magnetos | |
US1642704A (en) | Magneto | |
GB453152A (en) | Improvements in or relating to magneto-electric machines | |
GB214682A (en) | Improvements in or relating to magneto electric generators | |
GB500347A (en) | Improvements in and relating to magneto generators | |
GB521617A (en) | Improvements in and relating to magneto-electric machines | |
GB528679A (en) | Magneto | |
GB499042A (en) | Improvements in or relating to permanent magnets for magnetos | |
GB273335A (en) | Improved magnetic core for electrical machines | |
GB514674A (en) | Improvements in or relating to magneto generators | |
GB191118702A (en) | Improvements in or relating to Magneto Electric Machines. | |
GB522621A (en) | Improvements in and relating to rotary magnets for magnetos | |
GB646528A (en) | Improvements in or relating to laminated magnetic structures |