US2478983A - Electrical apparatus - Google Patents
Electrical apparatus Download PDFInfo
- Publication number
- US2478983A US2478983A US778778A US77877847A US2478983A US 2478983 A US2478983 A US 2478983A US 778778 A US778778 A US 778778A US 77877847 A US77877847 A US 77877847A US 2478983 A US2478983 A US 2478983A
- Authority
- US
- United States
- Prior art keywords
- core
- cover
- container
- electrical apparatus
- spacing member
- 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 - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
- H01F2038/122—Ignition, e.g. for IC engines with rod-shaped core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
- H01F2038/125—Ignition, e.g. for IC engines with oil insulation
Definitions
- This invention relates to electrical apparatus of the kind having one or more coils mounted on a core and enclosed within an oil container, such as transformers and chokes.
- the core is held between a spacing member at the bottom of the container and a spring in the cover of the container, and the coil or coils mounted on the core is or are supported by the spacing member on the bottom of the container, but are free at their upper ends to expand against a resilient member bearing against the cover.
- the invention further comprises an arrangement in which the spacing member consists of a frustro-conical upper part with a central aperture taking the end of the core, and a lower part in the form of an arched disc, slotted around its periphery.
- Figure 1 is a vertical section through an autotransformer in accordance with the invention.
- Figure 2 is an elevation and Figure 3 is a plan of the spacing member.
- the auto-transformer is mounted in a glass jar a filled with oil.
- a spacing member I) of neoprene or cork At the bottom of the jar is a spacing member I) of neoprene or cork, the lower part c of which is arched and is slotted around its periphery so that when put under pressure it can fit tightly in the jar, without havin to be made to fit exactly therein.
- the upper part (1 of the spacer is frustro-conical in shape and has a central aperture e which receives the end of the transformer core 1, and on the spacer rests a disc g of synthetic resin which carries the primary and secondary windings h.
- a resilient washer n of neoprene or cork is placed between the disc g above the top of the winding h and the under surface of the cover m.
- Flexible leads 0 provide the electrical connections to the windings.
- the core 1 (consisting of iron wires in a resinimpregnated paper tube) is held between the spring 2' and the spacer b, and the windings h, resting on the disc 9 are free to expand against the washer n.
- the disc g may be perforated to allow circulation of oil through the windings.
- An electrical appliance comprising an oil c0ntainer, a cover for the container, a spring mounted in a recess in the cover, a core of magnetic material, at least one windin surrounding the core, a spacing member located in the bottom of the container having an upper part recessed to receive the core and adapted to support the winding independently of the core and a lower portion in the form of an arched disc slotted around its periphery, the core being held between the spring and the upper part of the spacing member, a resilient washer between the upper end of the winding and the cover, and connecting wires from the winding led out to the exterior of the device.
Description
Aug. 1949. J. H. RUNBAKEN ETAL 2,478,983
ELECTRICAL APPARATUS Filed 061;. 9, 1947 lNV ENTcRs J. H.'R\JNBAKEN \I\/.TORRANCE BY OWN d mwwm ATT Y6.
Patented Aug. 16, 1949 ELECTRICAL APPARATUS Julian Henry Runbaken, Wilmslow, and William Torrance, Manchester, England Application October 9, 1947, Serial No. 778,778 In Great Britain July 1, 1946 Section 1, Public Law .690, August 8, 1946 Patent expires July 1, 1966 1 Claim.
This invention relates to electrical apparatus of the kind having one or more coils mounted on a core and enclosed within an oil container, such as transformers and chokes.
In apparatus of this kind, particularly in the case of auto-transformers having one winding connected to the core and having the windings held between the body and the cover of the container, difliculties have been encountered owing to displacement of the coils with respect to one another or to the core, resulting in breakage of the connecting wires, during the assembly of the device in the container.
It is an object of the present invention to avoid these difficulties and to provide an arrangement in which there is no tendency for the coils to be displaced during assembly.
In the arrangement according to the invention, the core is held between a spacing member at the bottom of the container and a spring in the cover of the container, and the coil or coils mounted on the core is or are supported by the spacing member on the bottom of the container, but are free at their upper ends to expand against a resilient member bearing against the cover.
The invention further comprises an arrangement in which the spacing member consists of a frustro-conical upper part with a central aperture taking the end of the core, and a lower part in the form of an arched disc, slotted around its periphery.
Referring to the accompanyin explanatory drawing.
Figure 1 is a vertical section through an autotransformer in accordance with the invention.
Figure 2 is an elevation and Figure 3 is a plan of the spacing member.
The auto-transformer is mounted in a glass jar a filled with oil. At the bottom of the jar is a spacing member I) of neoprene or cork, the lower part c of which is arched and is slotted around its periphery so that when put under pressure it can fit tightly in the jar, without havin to be made to fit exactly therein. The upper part (1 of the spacer is frustro-conical in shape and has a central aperture e which receives the end of the transformer core 1, and on the spacer rests a disc g of synthetic resin which carries the primary and secondary windings h.
The upper end of the core 1, which projects beyond the windings h, is acted upon by a spring 1', the other end of which is fixed to a brass terminal is embedded in the cover m of the jar a, the spring being located in a bore in the cover. A resilient washer n of neoprene or cork is placed between the disc g above the top of the winding h and the under surface of the cover m. Flexible leads 0 provide the electrical connections to the windings.
When the cover m is placed in position and secured b the screw cap 2?, the core 1 (consisting of iron wires in a resinimpregnated paper tube) is held between the spring 2' and the spacer b, and the windings h, resting on the disc 9 are free to expand against the washer n. The disc g may be perforated to allow circulation of oil through the windings.
What We claim is:
An electrical appliance comprising an oil c0ntainer, a cover for the container, a spring mounted in a recess in the cover, a core of magnetic material, at least one windin surrounding the core, a spacing member located in the bottom of the container having an upper part recessed to receive the core and adapted to support the winding independently of the core and a lower portion in the form of an arched disc slotted around its periphery, the core being held between the spring and the upper part of the spacing member, a resilient washer between the upper end of the winding and the cover, and connecting wires from the winding led out to the exterior of the device.
JULIAN HENRY RUNBAKEN. WILLIAM TOR/RANGE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,089,461 Crist Mar. 10, 1914 1,361,232 Dick Dec. 7, 1920 2,006,239 Gogel June 25, 1935 2,282,040 Doran May 5, 1942 2,327,784 I-Iartzell Aug. 24, 1943
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2478983X | 1946-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2478983A true US2478983A (en) | 1949-08-16 |
Family
ID=10907966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US778778A Expired - Lifetime US2478983A (en) | 1946-07-01 | 1947-10-09 | Electrical apparatus |
Country Status (1)
Country | Link |
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US (1) | US2478983A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3634798A (en) * | 1970-03-06 | 1972-01-11 | Westinghouse Electric Corp | Distribution transformer |
US3670276A (en) * | 1971-02-11 | 1972-06-13 | Ltv Ling Altec Inc | Hermetic transformer |
US3708774A (en) * | 1970-10-31 | 1973-01-02 | Tokyo Shibaura Electric Co | Potential transformer having a bar-shaped magnetic core |
US3710002A (en) * | 1971-06-09 | 1973-01-09 | E Link | An under-ground vented non-metallic transformer assembly |
US3766505A (en) * | 1970-08-27 | 1973-10-16 | Matsushita Electric Ind Co Ltd | Flyback transformer device |
US4035751A (en) * | 1975-05-27 | 1977-07-12 | Ainslie Walthew | Device for inducing an electrical voltage |
EP0431935A2 (en) * | 1989-12-07 | 1991-06-12 | Honeywell Inc. | High pressure proximity sensor |
US6163949A (en) * | 1996-06-05 | 2000-12-26 | L.H. Carbide Corporation | Method for manufacturing long, slender lamina stack from nonuniform laminae |
US6195875B1 (en) | 1996-06-05 | 2001-03-06 | L.H. Carbide Corporation | Apparatus for manufacturing long, slender lamina stacks from nonuniform laminae |
US6636137B1 (en) | 1996-06-05 | 2003-10-21 | L.H. Carbide Corporation | Ignition coil assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1089461A (en) * | 1906-02-15 | 1914-03-10 | Colonial Trust Co | Jump-spark ignition apparatus for internal-combustion engines. |
US1361232A (en) * | 1919-03-10 | 1920-12-07 | Wagner Electric Mfg Co | Spark-coil |
US2006239A (en) * | 1934-04-20 | 1935-06-25 | Electric Auto Lite Co | Ignition coil construction |
US2282040A (en) * | 1932-09-10 | 1942-05-05 | James A Doran | Ignition coil |
US2327784A (en) * | 1939-09-28 | 1943-08-24 | Gen Motors Corp | Ignition coil |
-
1947
- 1947-10-09 US US778778A patent/US2478983A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1089461A (en) * | 1906-02-15 | 1914-03-10 | Colonial Trust Co | Jump-spark ignition apparatus for internal-combustion engines. |
US1361232A (en) * | 1919-03-10 | 1920-12-07 | Wagner Electric Mfg Co | Spark-coil |
US2282040A (en) * | 1932-09-10 | 1942-05-05 | James A Doran | Ignition coil |
US2006239A (en) * | 1934-04-20 | 1935-06-25 | Electric Auto Lite Co | Ignition coil construction |
US2327784A (en) * | 1939-09-28 | 1943-08-24 | Gen Motors Corp | Ignition coil |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3634798A (en) * | 1970-03-06 | 1972-01-11 | Westinghouse Electric Corp | Distribution transformer |
US3766505A (en) * | 1970-08-27 | 1973-10-16 | Matsushita Electric Ind Co Ltd | Flyback transformer device |
US3708774A (en) * | 1970-10-31 | 1973-01-02 | Tokyo Shibaura Electric Co | Potential transformer having a bar-shaped magnetic core |
US3670276A (en) * | 1971-02-11 | 1972-06-13 | Ltv Ling Altec Inc | Hermetic transformer |
US3710002A (en) * | 1971-06-09 | 1973-01-09 | E Link | An under-ground vented non-metallic transformer assembly |
US4035751A (en) * | 1975-05-27 | 1977-07-12 | Ainslie Walthew | Device for inducing an electrical voltage |
EP0431935A2 (en) * | 1989-12-07 | 1991-06-12 | Honeywell Inc. | High pressure proximity sensor |
US5173658A (en) * | 1989-12-07 | 1992-12-22 | Honeywell Inc. | Inductive proximity sensor with force transferring support post for use in high pressure environments |
EP0431935B1 (en) * | 1989-12-07 | 1994-12-21 | Honeywell Inc. | High pressure proximity sensor |
US6163949A (en) * | 1996-06-05 | 2000-12-26 | L.H. Carbide Corporation | Method for manufacturing long, slender lamina stack from nonuniform laminae |
US6195875B1 (en) | 1996-06-05 | 2001-03-06 | L.H. Carbide Corporation | Apparatus for manufacturing long, slender lamina stacks from nonuniform laminae |
US6636137B1 (en) | 1996-06-05 | 2003-10-21 | L.H. Carbide Corporation | Ignition coil assembly |
US6745458B2 (en) | 1996-06-05 | 2004-06-08 | L.H. Carbide Corporation | Laminated magnetic core and method for making |
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