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GB966029A - Threaded element having recessed sides - Google Patents

Threaded element having recessed sides

Info

Publication number
GB966029A
GB966029A GB1595261A GB1595261A GB966029A GB 966029 A GB966029 A GB 966029A GB 1595261 A GB1595261 A GB 1595261A GB 1595261 A GB1595261 A GB 1595261A GB 966029 A GB966029 A GB 966029A
Authority
GB
United Kingdom
Prior art keywords
peaks
screwthread
stock
forming
troughs
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
GB1595261A
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
Publication of GB966029A publication Critical patent/GB966029A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • 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)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Forging (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

966,029. Self-tapping screws; making bolthole bushes; flow of metal produced by rotary rubbing tools. R. NEUSCHOTZ. May 3, 1961 [April 4, 1961], No. 15952/61. Headings B3A, B3N and B3V. [Also in Division F2] A screwthread forming insert 10 has external screwthread 18 with peaks 26 and troughs 27 which facilitate the formation of a screwthread in a member 12 of aluminium, synthetic resin &c. by a deforming operation in which the peaks 26 roll the screwthread into the member 12. The insert is made from bar-stock having the desired cross-section for forming the peaks 26. An external screwthread is formed in the stock which has a cylindrical root 23. The internal screwthread 19 for a bolt &c. 16 may be formed in a bore, the whole or part of the length of which has been broached to form driving grooves, Fig. 15 (not shown), for a key. The stock may have five, six or seven ribs forming the thread-peaks and it may be twisted, Fig. 6. In various modifications, Figs. 7-12 (not shown), the trough between the peaks 26 does not extend to the root-diameter of the screwthread 18 and may have a flat base (Fig. 8), or the peaks may have flat tops, with curved-or straight-walled troughs, the bases of which may be biased towards the leading peak (Figs. 11 and 12). The corners of the peaks may be rounded.
GB1595261A 1961-04-04 1961-05-03 Threaded element having recessed sides Expired GB966029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10068761A 1961-04-04 1961-04-04

Publications (1)

Publication Number Publication Date
GB966029A true GB966029A (en) 1964-08-06

Family

ID=22281030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1595261A Expired GB966029A (en) 1961-04-04 1961-05-03 Threaded element having recessed sides

Country Status (4)

Country Link
BE (1) BE606286A (en)
DE (1) DE1400222A1 (en)
FR (1) FR1292780A (en)
GB (1) GB966029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189419A (en) * 1986-04-23 1987-10-28 Rexnord Inc Threaded element for use as an insert

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003287A (en) * 1975-07-08 1977-01-18 Yardley Products Corporation Insert of the self-tapping fluted type
GB2039660B (en) * 1979-01-06 1983-05-25 Psm Fasteners Ltd Fastener inserts
FR2460168A1 (en) * 1979-07-02 1981-01-23 Groov Pin Corp Self-tapping headless lobular insert forming method - forms longitudinally spaced chamfers or bevels on rod by orbital or helicoid movement of latter, using rod side surfaces as guide
US4544312A (en) * 1981-03-17 1985-10-01 Vsi Corporation Pin and process for its manufacture
US7101134B2 (en) 2001-06-19 2006-09-05 Illinois Tool Works Inc. Fastener having multiple lobed thread
US6899500B2 (en) 2001-06-19 2005-05-31 Illinois Tool Works Inc. Fastner having multiple-bossed lead
AU2004202640B9 (en) * 2002-03-12 2007-04-26 Illinois Tool Works Inc. Fastener having multiple lobed thread

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189419A (en) * 1986-04-23 1987-10-28 Rexnord Inc Threaded element for use as an insert
US4818165A (en) * 1986-04-23 1989-04-04 Rexnord Inc. Threaded element for use as an insert
GB2189419B (en) * 1986-04-23 1990-05-16 Rexnord Inc Threaded element for use as an insert

Also Published As

Publication number Publication date
BE606286A (en) 1961-11-10
DE1400222A1 (en) 1968-12-19
FR1292780A (en) 1962-05-04

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