GB794598A - Inductors for heating cylinders - Google Patents
Inductors for heating cylindersInfo
- Publication number
- GB794598A GB794598A GB2649455A GB2649455A GB794598A GB 794598 A GB794598 A GB 794598A GB 2649455 A GB2649455 A GB 2649455A GB 2649455 A GB2649455 A GB 2649455A GB 794598 A GB794598 A GB 794598A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- tube
- plates
- cylinders
- water
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
794,598. Induction heaters for cylinders. WILD - BARFIELD ELECTRIC FURNACES, Ltd. Sect. 10, 1956 [Sept. 15, 1955], No. 26494/55. Class 391(3) A low frequency induction heating device is in the form of a cuff which may be used for heating the cylinders leading to the nozzles of plastic moulding machines. In Fig. 2, a brass tube 1 carries a winding 2 of aluminium wire covered with glass fibre and silicone resin, and a casing comprises a mild steel member 3 provided with annular end plates 4. The tube 1 and the member 3 are split longitudinally to minimise the formation of induced currents and the plates have radial slots 5 to enable the device to be clamped on an extrusion cylinder 10. The surface of the cylinder 10, together with the casing 3 and end plates 4, forms a closed magnetic circuit. In a modification, Fig. 4, the tube 1 is of stainless 'steel and is not split longitudinally. The plates 4 are not slotted and enclose a water-tight annular space 14 through which water may be circulated for cooling the cylinder after it has been heated; a baffle plate 11 is provided in the space 14. A number of the cuffs may be arranged successively along a cylinder and may be independently controlled automatically or by hand. The windings may be energized by 50 c.p.s. mains supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2649455A GB794598A (en) | 1955-09-15 | 1955-09-15 | Inductors for heating cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2649455A GB794598A (en) | 1955-09-15 | 1955-09-15 | Inductors for heating cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB794598A true GB794598A (en) | 1958-05-07 |
Family
ID=10244530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2649455A Expired GB794598A (en) | 1955-09-15 | 1955-09-15 | Inductors for heating cylinders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB794598A (en) |
-
1955
- 1955-09-15 GB GB2649455A patent/GB794598A/en not_active Expired
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