GB1312053A - Perforating strip material - Google Patents

Perforating strip material

Info

Publication number
GB1312053A
GB1312053A GB1312053DA GB1312053A GB 1312053 A GB1312053 A GB 1312053A GB 1312053D A GB1312053D A GB 1312053DA GB 1312053 A GB1312053 A GB 1312053A
Authority
GB
United Kingdom
Prior art keywords
teeth
april
angle
strip material
adjacent
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
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BION CO Ltd ROBERT
Original Assignee
BION CO Ltd ROBERT
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 BION CO Ltd ROBERT filed Critical BION CO Ltd ROBERT
Publication of GB1312053A publication Critical patent/GB1312053A/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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/02—Stabbing or piercing, e.g. for making sieves
    • 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
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders

Landscapes

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

Abstract

1312053 Punching ROBERT BION & CO Ltd 19 April 1971 [16 April 1970] 18266/70 Heading B3W A perforating roller for forming narrow, elongated slots has teeth each of which has side faces 5, Fig. 3, converging to form a sharp cutting edge 6, the angle B included between the faces in the region 7 adjacent the edge 6 being greater than the angle A in the remainder of the tooth. The teeth are arranged in circumferential rows, the gap 9 between leading and trailing edges of adjacent teeth being critical for forming slots with parallel side walls 2.
GB1312053D 1970-04-16 1970-04-16 Perforating strip material Expired GB1312053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1826670 1970-04-16

Publications (1)

Publication Number Publication Date
GB1312053A true GB1312053A (en) 1973-04-04

Family

ID=10109512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1312053D Expired GB1312053A (en) 1970-04-16 1970-04-16 Perforating strip material

Country Status (1)

Country Link
GB (1) GB1312053A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057091A2 (en) * 1981-01-23 1982-08-04 ROBERT BION & COMPANY LIMITED Improvements in refrigerator heat exchangers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057091A2 (en) * 1981-01-23 1982-08-04 ROBERT BION & COMPANY LIMITED Improvements in refrigerator heat exchangers
EP0057091A3 (en) * 1981-01-23 1982-10-27 ROBERT BION & COMPANY LIMITED Improvements in refrigerator heat exchangers

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Legal Events

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