History of Electric Induction Heating

This Chapter

Induction Heating
  1. Early work to Salesman
  2. Salesman to entrepreneur
  3. Vacuum furnaces
  4. Henry Rowan, Mars Rocket
  5. Cheston, Cragmet, IRS
  6. Visit Russia, Meet Vera
  7. Around the world, Meet the president
  8. Kramatorsk
  9. Consarc
  10. Consarc UK
  11. Carbon contract
  12. Russians in Scotland
  13. The Embargo is Coming
  14. Embargo and Aftermath
  15. BEPA
  16. After BEPA
  17. Fiber Materials Appeal
  18. Consarc Officials Deny Wrongdoing in Sales to Soviets
  19. Memos from Henry Rowan to Metcalf
  20. Rowland motor patent 1868
  21. Rowland reviews the bids for Niagara Falls power station
  22. Metcalf's father's poem, and Metcalf genealogy
  23. The Peace Treaty of Brest-Litovsk
  24. Problems of Russia's Policy With Respect to China and Japan
  25. History of Ajax Magnethermic
  26. The most important event for Inductotherm
  27. Fright Flight
  28. Black art of carbon production
  29. Polaris Missile
  30. Nuclear Airplane
  31. Nuclear Engine
  32. Molten metal eats through and explodes
  33. Cannon Muskegon Corporation
  34. Metcalf at General Motors Research from April 1955 to Oct 1955
  35. Metcalf pouring superalloy at GE from Oct 1955 to June 1956
  36. Metcalf at Waimet (later Howmet) from June 1956 to July 1957
  37. Black art of carbon production
  38. Project to test NASA hot hydrogen engine
  39. Special Metals Number 9
  40. Metcalf joins Inductotherm group
  41. Device to load materials into a furnace for melting
  42. Bank reneged on a commitment to finance a job in Russia
  43. Inductotherm private airport
  44. NERVA (Nuclear Engine for Rocket Vehicle Application) and all I know about carbon
  45. NERVA Engine Control Rods
  46. same as 383-Nuke.html
  47. Development of Polaris missle
  48. Ajax NASA
  49. Production of carbon fabrics and threads made from rayon
  50. George Houghton, Aerojet Inspector gives Metcalf Rocket history
  51. Rayon to carbon to graphite
  52. Metcalf buys the control division of the Pelton Water Wheel Company
  53. Rowan's account of firing Consarc President
  54. Kama Purchasing Commission, Ukraine
  55. Role of chromium in vacuum melters
  56. ASEA wins contract for isopress
  57. Induction heating to re-refile tank cannon
  58. Hoover-Ugine Company
  59. Letter to Henry Rowan at Inductotherm
  60. John Mortimer in Rancocas
  61. Consarc Board of Directors Meeting
  62. Consarc Board of Directors Meeting
  63. Hillbilly
  64. How to produce Calcarb
  65. Newsday, late 1987
  66. Embargo Regulations
  67. Seizure of Goods
  68. Minutes of Dept of Trade, London
  69. Minutes of ECGD Meeting
  70. Rowan Interview
  71. Bombshell looks like dud
  72. Letter to Hank Rowan
  73. Consarc Board Meeting
  74. Minutes of DTI Meeting, London
  75. Stansted Fluid Power
  76. Minutes of DTI Meeting, 3 Oct 85
  77. Letter to IHI Master Metals

Induction Heating

By James Farol Metcalf

Embargo Regulations

To: Consarc Engineering

FM: Department of Trade and Industry

From: DJ Hall, Assistant Secretary


  1. I have to inform you that I have today amended the export of goods (control) order 1981 to prohibit the export without a license from the Secretary of State of certain vacuum furnaces and isostatic presses, and parts and components for them.
  2. The effect of this is to prohibit the export by your company of the equipment not yet shipped which you contracted to supply to the Soviet Union in 1983. Breach of the order is of course an offense.
  3. The department recognizes that this order will put your company in some difficulty. I understand that the contract is the subject of ECGD cover, including cover against the imposition of export licensing controls. You will no doubt wish to pursue the matter with ECGD.
  4. The full text of the order is in my following Telex


1985 Number 148


The Export of Goods (Control)(Amendment Number 10) Order 1985.

Made 8 Th February 1985

Coming into operation at 1.40 PM 8 Th February 1985

The Secretary of State, in exercise of powers conferred by section 1 of the Import, Export and Customs Powers (Defense) Act 1939 (a) and now vested in him (b), and of all other powers enabling him in that behalf, hereby makes the following Order:

1. This Order may be cited as the Export of Goods (Control) (Amendment Number 10) Order 1985.

2. The Export of Goods (Control) Order 1981 (c) shall be further amended as follows:--

(A) In Group 3C of Part II of Schedule l, in the entry relating to furnaces, head (3) shall be deleted and there shall be added the following new heads--

3. Vacuum induction furnaces incorporating susceptor, designed to operate at temperatures in excess of 2,273K (2,000C) and having a working diameter greater than 100 mm...…A

4. Specialized parts, components and controls for the equipment specified in heads (1) (2) and (3) above .....…A

(B) In Group 3D of Part II of Schedule 1, in the entry relating to presses, heads (3) and (4) shall be deleted and there shall be substituted the following--

(3) Presses, isostatic, having either of the following characteristics:

(A) capable of achieving a maximum working pressure of 138M Pa(20,000 psi) or greater and possessing a chamber cavity with an inside diameter in excess of 406 millimeter (16 inches); or

(B) having a controlled thermal environment within the closed cavity and possessing a working cavity with an inside diameter of 127 millimeter (5 inches) or more...…A

(4) Control equipment and parts and components especially designed for the presses in heads (1) to (3) above (inclusive); specially designed dies and molds for the presses in head (3) above, except those used in isostatic presses operating at ambient temperatures, and specially designed software for the use of the presses in head (3) above and their control equipment and parts and components.…A

DJ Hall