GB1050825A - - Google Patents

Info

Publication number
GB1050825A
GB1050825A GB1050825DA GB1050825A GB 1050825 A GB1050825 A GB 1050825A GB 1050825D A GB1050825D A GB 1050825DA GB 1050825 A GB1050825 A GB 1050825A
Authority
GB
United Kingdom
Prior art keywords
strip
punch
edges
lug
lugs
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
English (en)
Publication date
Publication of GB1050825A publication Critical patent/GB1050825A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Punching Or Piercing (AREA)
GB1050825D Expired GB1050825A (https=)

Publications (1)

Publication Number Publication Date
GB1050825A true GB1050825A (https=) 1900-01-01

Family

ID=1756017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1050825D Expired GB1050825A (https=)

Country Status (1)

Country Link
GB (1) GB1050825A (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077936A1 (https=) * 1970-02-25 1971-11-05 Chausson Usines Sa
WO2000022366A1 (en) * 1998-10-09 2000-04-20 S.C. Romradiatoare S.A. High efficiency heat exchanger with oval tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077936A1 (https=) * 1970-02-25 1971-11-05 Chausson Usines Sa
WO2000022366A1 (en) * 1998-10-09 2000-04-20 S.C. Romradiatoare S.A. High efficiency heat exchanger with oval tubes

Similar Documents

Publication Publication Date Title
US3786732A (en) Cutting and scoring die
US2874776A (en) Punch and die mechanism
US3182481A (en) Heat exchanger and method of its manufacture
US5140882A (en) Assembly for severing sheet material
US3266567A (en) Heat exchanger
GB1050825A (https=)
US2851933A (en) Means for making paper box blanks in multiples
US1080759A (en) Die for making folding paper boxes.
US3309763A (en) Method for making a heat exchanger
US1334149A (en) Method oe producing punchings
US1340558A (en) Machine for cutting and preparing dress-suit-case body-blanks
WO2017124619A1 (zh) 刀模
US1424005A (en) Manufacture of blanks of sheet metal
US834372A (en) Method of making hexagonal nuts.
US171712A (en) Improvement in paper-fasteners
US1035545A (en) Machine for making buckets for turbines.
US598867A (en) Stephen d
US927293A (en) Method of cutting blanks.
US1603265A (en) Method and apparatus for cutting sheets
USRE20154E (en) Mantjfacrmte of expanded mbtal
CN222985435U (zh) 一种电池极耳冲切模具
GB493338A (en) Improvements relating to the manufacture of pressed nuts
SU54435A1 (ru) Штамп дл изготовлени деталей с косыми срезами
SU1696067A1 (ru) Способ изготовлени панельных теплообменников
US750814A (en) Carton-machine