GB219958A - Improvements in furnaces for heating rock drills and the like - Google Patents

Improvements in furnaces for heating rock drills and the like

Info

Publication number
GB219958A
GB219958A GB16130/24A GB1613024A GB219958A GB 219958 A GB219958 A GB 219958A GB 16130/24 A GB16130/24 A GB 16130/24A GB 1613024 A GB1613024 A GB 1613024A GB 219958 A GB219958 A GB 219958A
Authority
GB
United Kingdom
Prior art keywords
muffles
heating
furnace
flue
furnaces
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
GB16130/24A
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.)
DAVID STANISLAUS O DONOVAN
Original Assignee
DAVID STANISLAUS O DONOVAN
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 DAVID STANISLAUS O DONOVAN filed Critical DAVID STANISLAUS O DONOVAN
Publication of GB219958A publication Critical patent/GB219958A/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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools

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)
  • Tunnel Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

219,958. O'Donovan, D. S. Aug. 2, 1923, [Convention date]. Metal-heating furnaces.-A furnace for heating rock drills is formed with a long flue 5, in which are arranged a number of open ended muffles 6 extending transversely into the flue and heated to progressively increasing temperatures from one end of the series to the other. Alternatively a single long muffle may be used, and in 'both cases the drills are advanced gradually to the zone of highest temperature. Two sets of muffles may extend into the flue from opposite sides of the furnace, and escape of heating-gases around them is prevented by asbestos packing and fire-clay luting. The muffles 6a for preliminary heating may be of the elongated cross-section shown; alternatively, muffles of this section may be used throughout the furnace.
GB16130/24A 1923-08-02 1923-10-11 Improvements in furnaces for heating rock drills and the like Expired GB219958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA219958X 1923-08-02

Publications (1)

Publication Number Publication Date
GB219958A true GB219958A (en) 1924-12-24

Family

ID=25560179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16130/24A Expired GB219958A (en) 1923-08-02 1923-10-11 Improvements in furnaces for heating rock drills and the like

Country Status (1)

Country Link
GB (1) GB219958A (en)

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