GB619178A - Improvements in and relating to punching tools - Google Patents

Improvements in and relating to punching tools

Info

Publication number
GB619178A
GB619178A GB3489746A GB3489746A GB619178A GB 619178 A GB619178 A GB 619178A GB 3489746 A GB3489746 A GB 3489746A GB 3489746 A GB3489746 A GB 3489746A GB 619178 A GB619178 A GB 619178A
Authority
GB
United Kingdom
Prior art keywords
relating
punch
die
punching tools
screw
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
GB3489746A
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.)
HENRY REGINALD SOMPER
Original Assignee
HENRY REGINALD SOMPER
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 HENRY REGINALD SOMPER filed Critical HENRY REGINALD SOMPER
Priority to GB3489746A priority Critical patent/GB619178A/en
Publication of GB619178A publication Critical patent/GB619178A/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
    • B21D28/343—Draw punches

Landscapes

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

Abstract

619,178. Punching. SOMPER, H. R. Nov. 25, 1946, Nos. 34897/46 and 21011/47. [Class 83 (iv)] Punches and dies.- In a device for punching holes in sheets, a punch 11 and a die 10 are positioned on opposite sides of the sheet 13 and are drawn together by a screw 12. The punch is cylindrically recessed to provide two cutting points 10a, and the die is provided with a hole 10c to enable the waste to be ejected. The screw is turned by a tool engaging a recess in the head.
GB3489746A 1946-11-25 1946-11-25 Improvements in and relating to punching tools Expired GB619178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3489746A GB619178A (en) 1946-11-25 1946-11-25 Improvements in and relating to punching tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3489746A GB619178A (en) 1946-11-25 1946-11-25 Improvements in and relating to punching tools

Publications (1)

Publication Number Publication Date
GB619178A true GB619178A (en) 1949-03-04

Family

ID=10371264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3489746A Expired GB619178A (en) 1946-11-25 1946-11-25 Improvements in and relating to punching tools

Country Status (1)

Country Link
GB (1) GB619178A (en)

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