GB842548A - Knurled screw thread insert - Google Patents

Knurled screw thread insert

Info

Publication number
GB842548A
GB842548A GB9688/59A GB968859A GB842548A GB 842548 A GB842548 A GB 842548A GB 9688/59 A GB9688/59 A GB 9688/59A GB 968859 A GB968859 A GB 968859A GB 842548 A GB842548 A GB 842548A
Authority
GB
United Kingdom
Prior art keywords
recesses
wire
screw
screw thread
thread insert
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
GB9688/59A
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.)
Heli Coil Corp
Original Assignee
Heli Coil 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 Heli Coil Corp filed Critical Heli Coil Corp
Publication of GB842548A publication Critical patent/GB842548A/en
Expired legal-status Critical Current

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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)
  • Flexible Shafts (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

842,548. Screw-sockets &c. HELI-COIL CORPORATION. March 20, 1959 [April 8, 1958], No. 9688/59. Class 89(1) A wire-coil, screw-threadinsert 15, Fig. 6, has inner-and outer screw-thread-forming portions, a part of at least oneportion being provided with recesses 16, Fig. 2, forming bulges 19a, 19b projecting laterally beyond the original-contour of the wire. In a modification, the recesses are normal to the wire-axis. In another arrangement, radialprojections 22, Fig. 7 are formed by recesses 21. The externally-recessed-insert is assembled in a screwed-bore by first contracting the coils, and then expanding them to drive the projections into the bore-wall. Internal-projections will lock a co-operating-bolt &c.
GB9688/59A 1958-04-08 1959-03-20 Knurled screw thread insert Expired GB842548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US842548XA 1958-04-08 1958-04-08

Publications (1)

Publication Number Publication Date
GB842548A true GB842548A (en) 1960-07-27

Family

ID=22183786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9688/59A Expired GB842548A (en) 1958-04-08 1959-03-20 Knurled screw thread insert

Country Status (2)

Country Link
FR (1) FR1221461A (en)
GB (1) GB842548A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024899A (en) * 1976-03-09 1977-05-24 Stewart Mary L W Lock nut and bolt construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106540A (en) * 1977-07-07 1978-08-15 Microdot, Inc. Anti-vibration thread insert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024899A (en) * 1976-03-09 1977-05-24 Stewart Mary L W Lock nut and bolt construction

Also Published As

Publication number Publication date
FR1221461A (en) 1960-06-02

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