NL174914C - METHOD AND APPARATUS FOR MANUFACTURING A SELF-TAPING SCREW OR SIMILAR FASTENER - Google Patents

METHOD AND APPARATUS FOR MANUFACTURING A SELF-TAPING SCREW OR SIMILAR FASTENER

Info

Publication number
NL174914C
NL174914C NLAANVRAGE7307022,A NL7307022A NL174914C NL 174914 C NL174914 C NL 174914C NL 7307022 A NL7307022 A NL 7307022A NL 174914 C NL174914 C NL 174914C
Authority
NL
Netherlands
Prior art keywords
self
manufacturing
similar fastener
taping screw
taping
Prior art date
Application number
NLAANVRAGE7307022,A
Other languages
Dutch (nl)
Other versions
NL174914B (en
NL7307022A (en
Original Assignee
Usm Corp
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 Usm Corp filed Critical Usm Corp
Publication of NL7307022A publication Critical patent/NL7307022A/xx
Publication of NL174914B publication Critical patent/NL174914B/en
Application granted granted Critical
Publication of NL174914C publication Critical patent/NL174914C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0021—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being metal, e.g. sheet-metal or aluminium
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0052—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge having indentations, notches or the like in order to improve the cutting behaviour

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Forging (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
NLAANVRAGE7307022,A 1972-05-24 1973-05-18 METHOD AND APPARATUS FOR MANUFACTURING A SELF-TAPING SCREW OR SIMILAR FASTENER NL174914C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25637072A 1972-05-24 1972-05-24

Publications (3)

Publication Number Publication Date
NL7307022A NL7307022A (en) 1973-11-27
NL174914B NL174914B (en) 1984-04-02
NL174914C true NL174914C (en) 1984-09-03

Family

ID=22972001

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7307022,A NL174914C (en) 1972-05-24 1973-05-18 METHOD AND APPARATUS FOR MANUFACTURING A SELF-TAPING SCREW OR SIMILAR FASTENER

Country Status (18)

Country Link
AT (1) AT339118B (en)
BE (1) BE799936A (en)
CA (1) CA977192A (en)
CH (1) CH572165A5 (en)
DE (2) DE2322351C2 (en)
ES (1) ES415433A1 (en)
FI (1) FI58819C (en)
FR (1) FR2186084A5 (en)
GB (2) GB1376585A (en)
HK (2) HK65878A (en)
IE (1) IE37620B1 (en)
IL (1) IL42270A0 (en)
IT (1) IT987827B (en)
LU (1) LU67649A1 (en)
NL (1) NL174914C (en)
NO (2) NO139343C (en)
SE (1) SE397394B (en)
ZA (1) ZA733514B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703433A1 (en) * 1977-01-28 1978-12-07 Schumacher Wilhelm Kg THREAD FORMING SCREW AND METHOD OF MANUFACTURING THE SAME AND ROLLING JAW FOR PERFORMING THE METHOD
DE2844412C2 (en) * 1978-10-12 1986-03-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Cup-shaped housing for electrical components
US4411147A (en) * 1981-08-12 1983-10-25 Russell Burdsall & Ward Corporation Rolling dies and method of forming the same
DE102022121435A1 (en) 2022-08-24 2024-02-29 Ejot Se & Co. Kg Screw for direct screwing into a component
DE102022121434A1 (en) 2022-08-24 2024-02-29 Ejot Se & Co. Kg Screw for direct screwing into a component

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348850A (en) * 1939-05-03 1944-05-16 Groov Pin Corp Art of screw rolling
FR1337952A (en) * 1961-10-25 1963-09-20 Gen Am Transport Groove-less tapping tools and manufacturing processes
US3426642A (en) * 1962-02-05 1969-02-11 Res Eng & Mfg Self-tapping screws with threadforming projections
US3504722A (en) * 1968-11-20 1970-04-07 Lamson & Sessions Co Thread forming and locking fastener

Also Published As

Publication number Publication date
IL42270A0 (en) 1973-07-30
CH572165A5 (en) 1976-01-30
GB1376585A (en) 1974-12-04
FI58819B (en) 1980-12-31
ES415433A1 (en) 1976-02-16
AU5598073A (en) 1974-11-28
IT987827B (en) 1975-03-20
FI58819C (en) 1981-04-10
FR2186084A5 (en) 1974-01-04
DE2322351A1 (en) 1973-12-06
LU67649A1 (en) 1973-07-26
BE799936A (en) 1973-09-17
SE397394B (en) 1977-10-31
NO139343B (en) 1978-11-13
ATA448573A (en) 1977-01-15
HK65778A (en) 1978-11-24
DE2322351C2 (en) 1990-08-23
NO750695L (en) 1973-11-27
CA977192A (en) 1975-11-04
NL174914B (en) 1984-04-02
GB1376586A (en) 1974-12-04
IE37620L (en) 1973-11-24
NO139343C (en) 1979-02-21
HK65878A (en) 1978-11-24
NL7307022A (en) 1973-11-27
AT339118B (en) 1977-10-10
IE37620B1 (en) 1977-08-31
ZA733514B (en) 1974-11-27

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Legal Events

Date Code Title Description
BX A request for additional search has been filed
BY An additional search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee