GB814828A - Improvements relating to the provision of electrical connection between relatively movable parts - Google Patents
Improvements relating to the provision of electrical connection between relatively movable partsInfo
- Publication number
- GB814828A GB814828A GB2159656A GB2159656A GB814828A GB 814828 A GB814828 A GB 814828A GB 2159656 A GB2159656 A GB 2159656A GB 2159656 A GB2159656 A GB 2159656A GB 814828 A GB814828 A GB 814828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- slip ring
- contact
- mercury
- steel
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 4
- 229910052753 mercury Inorganic materials 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 230000037250 Clearance Effects 0.000 abstract 1
- 241000054817 Lycaena dione Species 0.000 abstract 1
- 230000035512 clearance Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/646—Devices for uninterrupted current collection through an electrical conductive fluid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
814,828. Current collectors for dynamoelectric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 4, 1957 [July 12, 1956], No. 21596/56. Class 35. [Also in Groups XXX and XXXVI] A current collector for use with a slip ring or commutator comprises a roller 1, Fig. 2, shown engaging a slip ring 2 and having a shaft 26 supported in bearings 5, 6 between side plates 7, 8 said shaft having an extension 25 received in a stationary cup 27 containing mercury and having a connecting cable 28 attached thereto, the shaft and the cup carrying concentric sleeves 30, 31 respectively of steel or other material which is not wetted by the mercury and between which there is a small running clearance to prevent egress of mercury from the cup. The framework of which the side plates 7, 8 form part is spring biased towards the slip ring 2. Fig. 3 shows an alternative construction wherein the roller 1<SP>1</SP> is hollow and a stationary spindle 39 having the conductor 28 attached thereto passes through a bush 35 closing one face of the hollow roller and has a head 40 located in said hollow which contains the mercury. A steel sealing sleeve 41 is fitted to the rod. To reduce the speed of the contact roller where it engages a large slip ring, an intermediate dumb-bell shaped roller 47, Fig. 5, may be interposed between the slip ring 2 and the contact roller 46, the large diameter portion 48 of the roller 47 engaging the slip ring and the small diameter portion 49 engaging the roller 46. Fig. 7 shows an arrangement wherein two contact rollers 51, 52 constructed according to Figs. 2 or 3 and displaced round the periphery of the slip ring are connected in parallel to reduce sparking in the event of temporary impairment of contact at one of the rollers. A sliding brush may replace one of the rollers (Fig. 8, not shown). Selfcleaning of the contacting surface of the roller and slip ring may be provided for by setting the axis of the roller at a slight angle to the axis of the slip ring so that a small amount of slip occurs, and concentration of the contact pressure may be obtained by crowning the surface of the slip ring and/or the roller. Where the contact roller is used with a commutator, the bars 67, Fig. 11, of the latter may be set at an angle or each bar divided into two circumferentially offset parts 69, 70 as shown in Fig. 12, so as to ensure that the roller engages an oncoming bar before breaking contact with a receding one. Suitable materials for the contact surfaces of the roller and slip ring are referred to, e.g. copper, steel, silver, stainless steel, rhodiumplating. Specification 777.335, [Group XXXVI], is referred to.
Publications (1)
Publication Number | Publication Date |
---|---|
GB814828A true GB814828A (en) | 1959-06-10 |
Family
ID=1736320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2159656A Expired GB814828A (en) | 1956-07-12 | Improvements relating to the provision of electrical connection between relatively movable parts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB814828A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2198178A1 (en) * | 1972-09-05 | 1974-03-29 | Eastman Kodak Co | |
FR2432784A1 (en) * | 1978-07-31 | 1980-02-29 | Wirmsberger Gerhard | CONTACT DEVICE FOR COLLECTOR OF ROTATING ELECTRIC MACHINE |
-
1956
- 1956-07-12 GB GB2159656A patent/GB814828A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2198178A1 (en) * | 1972-09-05 | 1974-03-29 | Eastman Kodak Co | |
FR2432784A1 (en) * | 1978-07-31 | 1980-02-29 | Wirmsberger Gerhard | CONTACT DEVICE FOR COLLECTOR OF ROTATING ELECTRIC MACHINE |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB814828A (en) | Improvements relating to the provision of electrical connection between relatively movable parts | |
US2774898A (en) | Slip ring construction | |
CN2930026Y (en) | Bearing type commutator | |
DE740378C (en) | Pantograph for large currents | |
DE2327793A1 (en) | COLLECTORS | |
JPS55109155A (en) | Carbon brush for motor | |
GB142578A (en) | Improvements in rotary current collectors for electric machines | |
GB1519705A (en) | Open-end spinning device | |
SU892542A2 (en) | Current-collecting device | |
JPS57138846A (en) | Brush vibration monitoring device | |
GB826868A (en) | Improvements in and relating to earthing devices | |
GB725157A (en) | Improvements in and relating to commutators for electrical apparatus | |
SU116873A1 (en) | Current collector | |
SU828281A1 (en) | Current collector | |
GB215715A (en) | An improved rotary electric contact device | |
ES445699A1 (en) | Bearings for rapping shaft for electrostatic precipitators | |
DE672718C (en) | Synchronous rectifier, consisting of at least two contact carriers rotating around parallel axes in time with the supplied alternating current | |
DE1695459U (en) | EQUIPMENT ON BRUSH HOLDERS OF ELECTRIC MACHINERY. | |
GB450573A (en) | Improvements in or relating to variable resistance devices | |
GB1242297A (en) | Roller contact device | |
SU127691A1 (en) | Current collector | |
GB920747A (en) | Carbon conductor roll for electrolytic pickler | |
GB970089A (en) | Wiping contact rotary electric switch | |
GB944711A (en) | Improvements in or relating to vacuum capstan roller assemblies | |
SU687504A1 (en) | Brush current collecting device |