CH456312A - Punch for forming a cross-shaped recess in a screw head - Google Patents

Punch for forming a cross-shaped recess in a screw head

Info

Publication number
CH456312A
CH456312A CH317067A CH317067A CH456312A CH 456312 A CH456312 A CH 456312A CH 317067 A CH317067 A CH 317067A CH 317067 A CH317067 A CH 317067A CH 456312 A CH456312 A CH 456312A
Authority
CH
Switzerland
Prior art keywords
punch
forming
cross
screw head
shaped recess
Prior art date
Application number
CH317067A
Other languages
German (de)
Inventor
Gustave Mueenchinger Herman
Original Assignee
Gkn Screws Fasteners Ltd
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 Gkn Screws Fasteners Ltd filed Critical Gkn Screws Fasteners Ltd
Publication of CH456312A publication Critical patent/CH456312A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • 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
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Slide Fasteners (AREA)
  • Insertion Pins And Rivets (AREA)
CH317067A 1961-05-26 1962-05-25 Punch for forming a cross-shaped recess in a screw head CH456312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11283661A 1961-05-26 1961-05-26

Publications (1)

Publication Number Publication Date
CH456312A true CH456312A (en) 1968-07-15

Family

ID=22346082

Family Applications (3)

Application Number Title Priority Date Filing Date
CH320866A CH464117A (en) 1961-05-26 1962-05-25 screwdriver
CH317067A CH456312A (en) 1961-05-26 1962-05-25 Punch for forming a cross-shaped recess in a screw head
CH637462A CH451605A (en) 1961-05-26 1962-05-25 Screw with a cruciform recess embossed in the screw head

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH320866A CH464117A (en) 1961-05-26 1962-05-25 screwdriver

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH637462A CH451605A (en) 1961-05-26 1962-05-25 Screw with a cruciform recess embossed in the screw head

Country Status (11)

Country Link
AT (2) AT253309B (en)
BE (1) BE618104A (en)
CH (3) CH464117A (en)
DE (3) DE1675640B1 (en)
DK (1) DK113041B (en)
ES (1) ES277721A1 (en)
FI (1) FI45380C (en)
GB (1) GB1006509A (en)
LU (1) LU41783A1 (en)
MY (1) MY6600087A (en)
NL (2) NL278918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0283669A2 (en) * 1987-03-23 1988-09-28 Arturo Salice S.p.A. Method of making a screw with a cross-slotted head

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1521141A (en) * 1975-07-19 1978-08-16 Gkn Fasteners Ltd Threaded fastener
US4355552A (en) * 1980-04-14 1982-10-26 Technofast, Inc. Recessed head screw
GB2129348B (en) * 1982-09-08 1986-09-24 Blum Gmbh Julius Screws
DE3670134D1 (en) * 1985-06-03 1990-05-10 Isotech Consultants Inc SCREW DRIVE REMOVAL.
GB2244775B (en) * 1990-06-05 1993-08-11 Titus Tool Co Ltd Screws
IT1269314B (en) * 1994-04-14 1997-03-26 Carlo Sala SCREW AND RELATIVE SCREWING TOOL
US6223634B1 (en) 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
WO1999047820A1 (en) * 1998-03-18 1999-09-23 Francisco Casino Lorite Assembly of screw and screwdriver which are mutually self-gripping
SG11201704146PA (en) 2014-12-17 2017-07-28 Res Eng & Mfg Recessed head fastener and driver combination

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588404A (en) * 1946-09-04 1952-03-11 Herman G Muenchinger Fastening device and method of making same
FR1255865A (en) * 1959-05-05 1961-03-10 Phillips Screw Co Hollow head threaded fastener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0283669A2 (en) * 1987-03-23 1988-09-28 Arturo Salice S.p.A. Method of making a screw with a cross-slotted head
EP0283669A3 (en) * 1987-03-23 1989-08-30 Arturo Salice S.p.A. Method of making a screw with a cross-slotted head

Also Published As

Publication number Publication date
LU41783A1 (en) 1962-07-25
DK113041B (en) 1969-02-10
DE1675640B1 (en) 1969-12-11
ES277721A1 (en) 1962-10-01
MY6600087A (en) 1966-12-31
NL278918A (en)
CH464117A (en) 1968-10-15
GB1006509A (en) 1965-10-06
BE618104A (en) 1962-09-17
DE1950935U (en) 1966-12-01
CH451605A (en) 1968-05-15
AT253309B (en) 1967-04-10
AT241237B (en) 1965-07-12
FI45380B (en) 1972-01-31
NL133564C (en)
DE1949486U (en) 1966-11-10
FI45380C (en) 1972-05-10

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