OA00015A - Manhole and its cover for tank, cistern or other, and their manufacturing process. - Google Patents

Manhole and its cover for tank, cistern or other, and their manufacturing process.

Info

Publication number
OA00015A
OA00015A OA50048A OA50048A OA00015A OA 00015 A OA00015 A OA 00015A OA 50048 A OA50048 A OA 50048A OA 50048 A OA50048 A OA 50048A OA 00015 A OA00015 A OA 00015A
Authority
OA
OAPI
Prior art keywords
cistern
manhole
tank
cover
manufacturing process
Prior art date
Application number
OA50048A
Other languages
French (fr)
Original Assignee
Agrinor S A
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 Agrinor S A filed Critical Agrinor S A
Publication of OA00015A publication Critical patent/OA00015A/en

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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/298—Forming collars by flow-drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
OA50048A 1959-01-16 1964-04-02 Manhole and its cover for tank, cistern or other, and their manufacturing process. OA00015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR784246 1959-01-16

Publications (1)

Publication Number Publication Date
OA00015A true OA00015A (en) 1966-01-15

Family

ID=8710226

Family Applications (1)

Application Number Title Priority Date Filing Date
OA50048A OA00015A (en) 1959-01-16 1964-04-02 Manhole and its cover for tank, cistern or other, and their manufacturing process.

Country Status (2)

Country Link
FR (1) FR1214504A (en)
OA (1) OA00015A (en)

Also Published As

Publication number Publication date
FR1214504A (en) 1960-04-08

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