GB692042A - Improvements in or relating to table and like knives - Google Patents

Improvements in or relating to table and like knives

Info

Publication number
GB692042A
GB692042A GB2047350A GB2047350A GB692042A GB 692042 A GB692042 A GB 692042A GB 2047350 A GB2047350 A GB 2047350A GB 2047350 A GB2047350 A GB 2047350A GB 692042 A GB692042 A GB 692042A
Authority
GB
United Kingdom
Prior art keywords
blade
upset
upsetting
tang
blank
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
GB2047350A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2047350A priority Critical patent/GB692042A/en
Publication of GB692042A publication Critical patent/GB692042A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B3/00—Hand knives with fixed blades
    • B26B3/02—Table-knives

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

692,042. Making knife blades. MILLER, B. M. June 28, 1951 [Aug. 17, 1950], No. 20473/50. Classes 83 (ii) and 83 (iv). In a process for making knife blades with solid forged bolsters, hardened stock of a section substantially that of the finished blade, is cut to length with an allowance for the tang and the bolster, and the bolster is upset electrically and shaped by dies during or after the said upsetting, the stock being cut or punched out to the outline of the blade before or after said upsetting. A blank 12 formed from a hardened and tempered bright stainless steel strip 11 is upset in an electrical upsetting apparatus, Fig. 8, to form a bolster portion 14 and a tang portion 13, Fig. 3, the portion 14 being die-formed to the finished shape 16, Fig. 4, during or after the upsetting operation. The portion 13 is then pressed edgewise between dies with roughened or serrated surfaces, to form a tang with a roughened surface hollowed as at 18, Fig. 6. The back of the blade is bevelled by grinding and the blade glazed, polished and sharpened. The upsetting apparatus, Fig. 8, comprises bronze vice electrodes 25, 26, 31, 32, carried on slides 23, 24. The blade portion of the blank is firmly gripped between the jaws 25, 26 and the tang portion 13 is slidably gripped by the jaws 31, 32. After heating a ram 41 hydraulically operated or spring-pressed, moves the slide 23 to cause the metal to upset, an hydraulic ram 40 causing the slide 24 to move to the left to expose fresh metal until the upset is complete, the tang end being backed up by a rod 46 carried in a wedge-holder 44, 45. In a modification, the blank, Fig. 9, is upset in apparatus, Fig. 13 (not shown), comprising a stationary vice electrode slidably supporting the blade portion which is pushed through the jaws during upsetting, and a movable vice electrode which grips the tang portion and moves therewith under the action of an hydraulic ram, to upset. The electrodes are water-cooled and may be fitted with renewable copper liners. The blade is finally shaped and finished as before.
GB2047350A 1950-08-17 1950-08-17 Improvements in or relating to table and like knives Expired GB692042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2047350A GB692042A (en) 1950-08-17 1950-08-17 Improvements in or relating to table and like knives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2047350A GB692042A (en) 1950-08-17 1950-08-17 Improvements in or relating to table and like knives

Publications (1)

Publication Number Publication Date
GB692042A true GB692042A (en) 1953-05-27

Family

ID=10146500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2047350A Expired GB692042A (en) 1950-08-17 1950-08-17 Improvements in or relating to table and like knives

Country Status (1)

Country Link
GB (1) GB692042A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586606A1 (en) * 1985-09-03 1987-03-06 Refoulage Decoupage Ste Indle Method for manufacturing a knife blade assembly blank, and knife obtained from such a blank
FR2612432A1 (en) * 1987-03-17 1988-09-23 Bournilhas Agnes Method of manufacturing knife blades having a forged bolster
EP1688224A1 (en) * 2005-02-05 2006-08-09 ZWILLING J. A. Henckels Aktiengesellschaft Knife with bolster obtained by upset forging

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586606A1 (en) * 1985-09-03 1987-03-06 Refoulage Decoupage Ste Indle Method for manufacturing a knife blade assembly blank, and knife obtained from such a blank
FR2612432A1 (en) * 1987-03-17 1988-09-23 Bournilhas Agnes Method of manufacturing knife blades having a forged bolster
EP1688224A1 (en) * 2005-02-05 2006-08-09 ZWILLING J. A. Henckels Aktiengesellschaft Knife with bolster obtained by upset forging
WO2006081993A1 (en) * 2005-02-05 2006-08-10 Zwilling J.A. Henckels Aktiengesellschaft Knife comprising an upset forged bolster
JP2008528298A (en) * 2005-02-05 2008-07-31 ツヴィリング ジェー．エー． ヘンケルス アクティエンゲゼルシャフト Knife composed of upset forged bolster

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