FR573873A - Metal duct with a large radiant surface and its manufacturing process - Google Patents

Metal duct with a large radiant surface and its manufacturing process

Info

Publication number
FR573873A
FR573873A FR573873DA FR573873A FR 573873 A FR573873 A FR 573873A FR 573873D A FR573873D A FR 573873DA FR 573873 A FR573873 A FR 573873A
Authority
FR
France
Prior art keywords
manufacturing process
metal duct
radiant surface
large radiant
duct
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
Other languages
French (fr)
Inventor
Paul Gregoire
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 filed Critical
Application granted granted Critical
Publication of FR573873A publication Critical patent/FR573873A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides
FR573873D 1923-11-28 1923-11-28 Metal duct with a large radiant surface and its manufacturing process Expired FR573873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR573873T 1923-11-28

Publications (1)

Publication Number Publication Date
FR573873A true FR573873A (en) 1924-07-02

Family

ID=8952298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR573873D Expired FR573873A (en) 1923-11-28 1923-11-28 Metal duct with a large radiant surface and its manufacturing process

Country Status (1)

Country Link
FR (1) FR573873A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558345A (en) * 1948-06-30 1951-06-26 Harold G Dickman Condenser coil assembly
US2656158A (en) * 1948-07-23 1953-10-20 Air Preheater Plate type heat exchanger and method of manufacturing same
US2711382A (en) * 1951-02-08 1955-06-21 Gen Electric Method of forming and applying metal heat exchange fins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558345A (en) * 1948-06-30 1951-06-26 Harold G Dickman Condenser coil assembly
US2656158A (en) * 1948-07-23 1953-10-20 Air Preheater Plate type heat exchanger and method of manufacturing same
US2711382A (en) * 1951-02-08 1955-06-21 Gen Electric Method of forming and applying metal heat exchange fins

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