GB682136A - Improvements in or relating to the manufacture of roll-threaded screws - Google Patents

Improvements in or relating to the manufacture of roll-threaded screws

Info

Publication number
GB682136A
GB682136A GB4288/51A GB428851A GB682136A GB 682136 A GB682136 A GB 682136A GB 4288/51 A GB4288/51 A GB 4288/51A GB 428851 A GB428851 A GB 428851A GB 682136 A GB682136 A GB 682136A
Authority
GB
United Kingdom
Prior art keywords
relating
roll
manufacture
lesser diameter
threaded screws
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
GB4288/51A
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.)
Bevi Bulloneria E Viteria Itallana Srl
Original Assignee
Bevi Bulloneria E Viteria Itallana Srl
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 Bevi Bulloneria E Viteria Itallana Srl filed Critical Bevi Bulloneria E Viteria Itallana Srl
Publication of GB682136A publication Critical patent/GB682136A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

682,136. Making screws. B.E.V.I. BULLONERIA E VITERIA ITALIANA SOC. R. L. Feb. 22, 1951 [Feb. 28, 1950], No. 4288/51. Class 83 (ii). In a method of making screw or bolt blanks having a head 8, a shank 1, a lower portion 2a subsequently to be threaded by rolling, and a conical point 9, bar stock having alternate portions of greater and lesser diameter corresponding to the shank 1 and portion 2a, is cut into blanks at positions where the portions of greater and lesser diameter meet, so as to form the point 9 on each portion of lesser diameter, the free end of the portion of greater diameter being simultaneously headed by upsetting.
GB4288/51A 1950-02-28 1951-02-22 Improvements in or relating to the manufacture of roll-threaded screws Expired GB682136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT682136X 1950-02-28

Publications (1)

Publication Number Publication Date
GB682136A true GB682136A (en) 1952-11-05

Family

ID=11308514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4288/51A Expired GB682136A (en) 1950-02-28 1951-02-22 Improvements in or relating to the manufacture of roll-threaded screws

Country Status (2)

Country Link
DE (1) DE896004C (en)
GB (1) GB682136A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056907B (en) * 1955-03-10 1959-05-06 Christian Schondelmaier Method and device for the production of blanks for workpieces with an end crosspiece

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48780C (en) * American Screw Company (by edwin G. angell, Präsident), 21 Stevens Street in Providence, Rhode Island, V. St. A Machine for the production of wood screw bolts
DE53865C (en) * J. SHELDON in Birmingham, England Method and machine for reducing the diameter of bolts by drawing the latter while cold
DE520116C (en) * 1927-07-20 1931-03-07 Bolt Company Process for the completion of pre-pressed screw and bolt workpieces
DE580107C (en) * 1929-01-15 1933-07-06 J G Kayser Akt Ges Tool for machining stud heads and tapering stud shafts in one operation
US2020660A (en) * 1934-02-20 1935-11-12 Nat Machinery Co Bolt making machine
DE667424C (en) * 1936-12-15 1939-04-13 Trurnit Friedrich Fa Process for the non-cutting production of the thread of wood screws with pressed tips
US2356686A (en) * 1943-02-06 1944-08-22 Newall Archibald Park Manufacture of stud bolts
DE834564C (en) * 1944-05-28 1952-03-20 Meyer Roth Pastor Maschf Machine for making wire nails

Also Published As

Publication number Publication date
DE896004C (en) 1953-11-26

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