CH473621A - Apparatus for cutting, in a single operation, two crenellated bands in a strip intended to be wound in a helix around a tube - Google Patents

Apparatus for cutting, in a single operation, two crenellated bands in a strip intended to be wound in a helix around a tube

Info

Publication number
CH473621A
CH473621A CH997567A CH997567A CH473621A CH 473621 A CH473621 A CH 473621A CH 997567 A CH997567 A CH 997567A CH 997567 A CH997567 A CH 997567A CH 473621 A CH473621 A CH 473621A
Authority
CH
Switzerland
Prior art keywords
wound
cutting
tube
single operation
helix around
Prior art date
Application number
CH997567A
Other languages
French (fr)
Inventor
Pignal Edmond
Original Assignee
Biraghi Fab Ets
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 Biraghi Fab Ets filed Critical Biraghi Fab Ets
Publication of CH473621A publication Critical patent/CH473621A/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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Milling Processes (AREA)
  • Shearing Machines (AREA)
CH997567A 1967-04-20 1967-07-11 Apparatus for cutting, in a single operation, two crenellated bands in a strip intended to be wound in a helix around a tube CH473621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR103504A FR1520065A (en) 1967-04-20 1967-04-20 Method and apparatus for crenellating a metal tape intended to be wound helically around a tube

Publications (1)

Publication Number Publication Date
CH473621A true CH473621A (en) 1969-06-15

Family

ID=8629286

Family Applications (1)

Application Number Title Priority Date Filing Date
CH997567A CH473621A (en) 1967-04-20 1967-07-11 Apparatus for cutting, in a single operation, two crenellated bands in a strip intended to be wound in a helix around a tube

Country Status (7)

Country Link
BE (1) BE700764A (en)
CH (1) CH473621A (en)
ES (2) ES342724A1 (en)
FR (1) FR1520065A (en)
GB (1) GB1181128A (en)
LU (1) LU54031A1 (en)
NL (1) NL6709936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607557A (en) * 1978-06-15 1986-08-26 L. Schuler Gmbh Punch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215276B1 (en) * 1973-01-30 1975-10-31 Mazaleyrat Jacques
CN103639264A (en) * 2013-11-26 2014-03-19 长沙仙达实业有限公司 Piercing die and punching-cutting machining method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607557A (en) * 1978-06-15 1986-08-26 L. Schuler Gmbh Punch

Also Published As

Publication number Publication date
NL6709936A (en) 1968-10-21
BE700764A (en) 1967-12-01
ES356768A1 (en) 1970-02-01
GB1181128A (en) 1970-02-11
ES342724A1 (en) 1968-12-16
FR1520065A (en) 1968-04-05
LU54031A1 (en) 1967-09-05

Similar Documents

Publication Publication Date Title
FR1520962A (en) Exothermic fixative device for electron tubes
CH419651A (en) Apparatus for freezing a specimen to be cut from a microtome
CH489693A (en) Rolling device for double screen awning
CH473621A (en) Apparatus for cutting, in a single operation, two crenellated bands in a strip intended to be wound in a helix around a tube
FR1508238A (en) Remote working device in a tube
FR1542144A (en) Apparatus for forming helical corrugations in flexible metal pipes
FR1520734A (en) Removable connector for bare end tubes
FR1398695A (en) Device suitable for use in a rack assembly
AT290437B (en) Motor-driven pipe wrench
FR1508439A (en) Device for advancing the mesh and transporting the cross wires in the mesh welders
FR1414511A (en) Tubular connector for two pipes
FR1536561A (en) Axial flow compressor fins
FR1517060A (en) Portable liquid cooler
FR1368447A (en) Advanced device for adjusting the tension in a continuous band
FR1381706A (en) Device for handling a metal strip
FR1513503A (en) Wrench for ribbed nut
FR1412604A (en) Cryogenic fluid transport tube comprising a liquefaction apparatus
FR1442319A (en) Improvements to knockout caps for tubular packaging with sealed nozzle
FR1482671A (en) Apparatus for sampling a flowing liquid
CH474715A (en) Hose end fitting
FR1413250A (en) Sealed end for tubes
AT272790B (en) Tube closure device
FR1514296A (en) Ratchet totalizer
AT274705B (en) Pipe pulling device
FR1486956A (en) Fittings for flexible tubing to rigid tubing

Legal Events

Date Code Title Description
PL Patent ceased