GB494736A - Improvements in or relating to furnaces - Google Patents

Improvements in or relating to furnaces

Info

Publication number
GB494736A
GB494736A GB1241837A GB1241837A GB494736A GB 494736 A GB494736 A GB 494736A GB 1241837 A GB1241837 A GB 1241837A GB 1241837 A GB1241837 A GB 1241837A GB 494736 A GB494736 A GB 494736A
Authority
GB
United Kingdom
Prior art keywords
furnace
retort
pit
cooling
pits
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
Application number
GB1241837A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G W B ELECTRIC FURNACES Ltd
Original Assignee
G W B ELECTRIC FURNACES Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G W B ELECTRIC FURNACES Ltd filed Critical G W B ELECTRIC FURNACES Ltd
Priority to GB1241837A priority Critical patent/GB494736A/en
Publication of GB494736A publication Critical patent/GB494736A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0043—Muffle furnaces; Retort furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

494,736. Cooling and preheating furnace charges. MAcDONALD, J., and G. W. B. ELECTRIC FURNACES, Ltd. April 30, 1937, No. 12418. [Class 51 (ii)] A furnace installation for the heat treatment in a protective atmosphere of materials contained in retorts or boxes comprises a pittype furnace, a cooling-pit to which a retort may be transferred after heat treatment in the furnace, and arrangements by which the protective atmosphere can be circulated between this retort and another containing a cold charge to be preheated. The installation shown comprises a furnace 1 which may be electrically heated, a preheating pit 4, three cooling pits 5, 6, 7 and a pipe system 15, 16 with a fan 14<1> and branch leads 17 .. 20 having flexible portions 21 ... 24 by which retorts in the various pits can be connected to the system. By means of valves 25 .. 28 a retort in the preheating-pit 4 can be placed in communication with a retort in any one of the cooling-pits. In a modified installation the pipe system has two sets of branch leads, one for the pit 4 and the other for any one of the pits 5, 6, 7.
GB1241837A 1937-04-30 1937-04-30 Improvements in or relating to furnaces Expired GB494736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1241837A GB494736A (en) 1937-04-30 1937-04-30 Improvements in or relating to furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1241837A GB494736A (en) 1937-04-30 1937-04-30 Improvements in or relating to furnaces

Publications (1)

Publication Number Publication Date
GB494736A true GB494736A (en) 1938-10-31

Family

ID=10004234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1241837A Expired GB494736A (en) 1937-04-30 1937-04-30 Improvements in or relating to furnaces

Country Status (1)

Country Link
GB (1) GB494736A (en)

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