GB1304181A - - Google Patents

Info

Publication number
GB1304181A
GB1304181A GB1304181DA GB1304181A GB 1304181 A GB1304181 A GB 1304181A GB 1304181D A GB1304181D A GB 1304181DA GB 1304181 A GB1304181 A GB 1304181A
Authority
GB
United Kingdom
Prior art keywords
die
bore
holder
tool frame
heenan
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
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
Publication of GB1304181A publication Critical patent/GB1304181A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

1304181 Punches and dies REDMAN HEENAN INTERNATIONAL Ltd and E F ALLEN 14 May 1970 [20 May 1969] 25752/69 Heading B3W A die 21 for co-operation with a punch has a through bore 22 of constant cross-section and having a cutting edge at each end so that the die may be used either way up. The die is a free fit in a holder 18 pressed in a bore 17 of a tool frame 16, a passageway 24 for scrap leading from the holder bore 19. The die may seat on a bush in the holder bore, Figs. 2 and 3 (not shown), and be held against rotation by engagement of a dowel pin 29 in grooves in the die and the tool frame. The die may be used with a punching and stripping unit described in Specification 1,194,822.
GB1304181D 1969-05-20 1969-05-20 Expired GB1304181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2575269 1969-05-20

Publications (1)

Publication Number Publication Date
GB1304181A true GB1304181A (en) 1973-01-24

Family

ID=10232717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304181D Expired GB1304181A (en) 1969-05-20 1969-05-20

Country Status (1)

Country Link
GB (1) GB1304181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319794A (en) * 2011-08-31 2012-01-18 无锡宝露锻造有限公司 Mold for forge piece punching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319794A (en) * 2011-08-31 2012-01-18 无锡宝露锻造有限公司 Mold for forge piece punching

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees