FR466526A - Improvements to lag screws, nut bolts, etc. - Google Patents

Improvements to lag screws, nut bolts, etc.

Info

Publication number
FR466526A
FR466526A FR466526DA FR466526A FR 466526 A FR466526 A FR 466526A FR 466526D A FR466526D A FR 466526DA FR 466526 A FR466526 A FR 466526A
Authority
FR
France
Prior art keywords
lag screws
nut bolts
bolts
nut
lag
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
Other languages
French (fr)
Inventor
Gustave Yseboodt
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
Application granted granted Critical
Publication of FR466526A publication Critical patent/FR466526A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/485—Spanners; Wrenches for special purposes for theft-proof screws, bolts or nuts
    • B25B13/486—Spanners; Wrenches for special purposes for theft-proof screws, bolts or nuts using a threaded connection between screw and tool
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/485—Spanners; Wrenches for special purposes for theft-proof screws, bolts or nuts
    • 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
    • F16B23/0076—Specially shaped nuts or heads of bolts or screws for rotations by a tool causing slipping of the tool in loosening rotation, i.e. disabling unscrewing unless another tool is used

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR466526D 1912-12-26 1913-12-24 Improvements to lag screws, nut bolts, etc. Expired FR466526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE466526X 1912-12-26

Publications (1)

Publication Number Publication Date
FR466526A true FR466526A (en) 1914-05-15

Family

ID=1505285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR466526D Expired FR466526A (en) 1912-12-26 1913-12-24 Improvements to lag screws, nut bolts, etc.

Country Status (1)

Country Link
FR (1) FR466526A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482481A (en) * 1968-10-24 1969-12-09 Strohm Newell Bolt or nut head
US4125051A (en) * 1977-06-09 1978-11-14 Illinois Tool Works Inc. Tamperproof fastener
DE2825483A1 (en) * 1977-06-09 1978-12-21 Illinois Tool Works FASTENING ELEMENT
DE2925526A1 (en) * 1977-06-09 1980-01-17 Illinois Tool Works FASTENING ELEMENT AND RELATED TOOL
EP0013274A1 (en) * 1978-12-22 1980-07-09 Fa Karcher Schraubenwerke GmbH Mechanical connectors and fixing tool therefor
US4223585A (en) * 1977-06-09 1980-09-23 Illinois Tool Works Inc. Double-ended stud with combined driving and locking means
FR2487455A1 (en) * 1980-07-23 1982-01-29 Microdot Inc DIFFICULTLY ALTERABLE THREADED FIXING DEVICE
US5340256A (en) * 1992-08-14 1994-08-23 Kinnings Marlow Limited Security nuts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482481A (en) * 1968-10-24 1969-12-09 Strohm Newell Bolt or nut head
US4125051A (en) * 1977-06-09 1978-11-14 Illinois Tool Works Inc. Tamperproof fastener
DE2825483A1 (en) * 1977-06-09 1978-12-21 Illinois Tool Works FASTENING ELEMENT
FR2393971A1 (en) * 1977-06-09 1979-01-05 Illinois Tool Works FIXING ELEMENT
DE2925526A1 (en) * 1977-06-09 1980-01-17 Illinois Tool Works FASTENING ELEMENT AND RELATED TOOL
FR2430537A2 (en) * 1977-06-09 1980-02-01 Illinois Tool Works Self-tapping bolt for insertion by power tool - has flange with contoured upward radial projections capable of receiving torque from tool head
US4223585A (en) * 1977-06-09 1980-09-23 Illinois Tool Works Inc. Double-ended stud with combined driving and locking means
EP0013274A1 (en) * 1978-12-22 1980-07-09 Fa Karcher Schraubenwerke GmbH Mechanical connectors and fixing tool therefor
FR2487455A1 (en) * 1980-07-23 1982-01-29 Microdot Inc DIFFICULTLY ALTERABLE THREADED FIXING DEVICE
US5340256A (en) * 1992-08-14 1994-08-23 Kinnings Marlow Limited Security nuts

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