GB170803A - Safety nut - Google Patents
Safety nutInfo
- Publication number
- GB170803A GB170803A GB1486721A GB1486721A GB170803A GB 170803 A GB170803 A GB 170803A GB 1486721 A GB1486721 A GB 1486721A GB 1486721 A GB1486721 A GB 1486721A GB 170803 A GB170803 A GB 170803A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nut
- sleeve
- engages
- key
- projection
- 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
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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
-
- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
170,803. Laforge, P. May 28, 1921. Nuts.-A safety-nut which can only be operated by means of a special key comprises a cylindrical nut 2 and a surrounding sleeve 3 which can turn freely on it and is prevented from moving axially by a small screw or pin 4 which projects into a groove in the nut 2. A removable key 5 locks the nut to the sleeve while the nut is being turned, and has a lug which engages a projection 2<alpha> on the nut and an eccentric projection on its inner end which engages the inner face of the sleeve. The form of the key may be varied. The sleeve- 3 is provided with facets to receive a spanner.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR527675D FR527675A (en) | 1921-05-28 | 1920-11-26 | Safety nut |
DE1921344933D DE344933C (en) | 1921-05-28 | 1921-01-11 | Nut lock |
GB1486721A GB170803A (en) | 1921-05-28 | 1921-05-28 | Safety nut |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1486721A GB170803A (en) | 1921-05-28 | 1921-05-28 | Safety nut |
Publications (1)
Publication Number | Publication Date |
---|---|
GB170803A true GB170803A (en) | 1921-11-03 |
Family
ID=10048894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1486721A Expired GB170803A (en) | 1921-05-28 | 1921-05-28 | Safety nut |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE344933C (en) |
FR (1) | FR527675A (en) |
GB (1) | GB170803A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3261254A (en) * | 1963-10-16 | 1966-07-19 | Robert H Pinkerton | Tamper-proof fastener |
US4416574A (en) * | 1979-06-11 | 1983-11-22 | Klimowicz Jerome R | Multiple piece bolt-type fastener |
US4484849A (en) * | 1980-12-19 | 1984-11-27 | Klimowicz Jerome R | Multiple piece bolt-type fastener |
US4540322A (en) * | 1983-01-13 | 1985-09-10 | Grace Petroleum Corporation | Security Device |
WO1997004242A1 (en) * | 1995-07-24 | 1997-02-06 | Robinson Robert R | Tamper resistant valve cap |
US6062787A (en) * | 1998-12-22 | 2000-05-16 | Maddalena; Kris L. | Tamper resistant valve stem cap |
US6102064A (en) * | 1998-09-10 | 2000-08-15 | Robinson; Robert | Theft resistant valve cap |
FR2961567A1 (en) * | 2010-06-22 | 2011-12-23 | Addax Srl | Anti-theft device for protecting nut in gas pipeline to prevent unauthorized operation of nut, has engagement unit passing to inner side of confinement housing and arranged to be in contact with operating unit of nut |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420631A1 (en) * | 1978-03-20 | 1979-10-19 | Gerard Marcel | Car wheel theft prevention device - has housing enclosing nut hexagon with pin engaging in groove in hexagon |
DE3017630A1 (en) * | 1980-05-08 | 1981-11-12 | DOM-Sicherheitstechnik GmbH & Co KG, 5040 Brühl | DEVICE FOR THEFT PROTECTION OF MOTOR VEHICLE BICYCLES |
DE3622286A1 (en) * | 1986-07-03 | 1986-11-06 | Erwin 7313 Reichenbach Rühle | Screw securing means for protective grilles for buildings, and other objects |
DE102004048363B4 (en) * | 2004-10-01 | 2007-11-22 | Peter Wekerle | screw |
-
1920
- 1920-11-26 FR FR527675D patent/FR527675A/en not_active Expired
-
1921
- 1921-01-11 DE DE1921344933D patent/DE344933C/en not_active Expired
- 1921-05-28 GB GB1486721A patent/GB170803A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3261254A (en) * | 1963-10-16 | 1966-07-19 | Robert H Pinkerton | Tamper-proof fastener |
US4416574A (en) * | 1979-06-11 | 1983-11-22 | Klimowicz Jerome R | Multiple piece bolt-type fastener |
US4484849A (en) * | 1980-12-19 | 1984-11-27 | Klimowicz Jerome R | Multiple piece bolt-type fastener |
US4540322A (en) * | 1983-01-13 | 1985-09-10 | Grace Petroleum Corporation | Security Device |
WO1997004242A1 (en) * | 1995-07-24 | 1997-02-06 | Robinson Robert R | Tamper resistant valve cap |
US5630687A (en) * | 1995-07-24 | 1997-05-20 | Robinson; Robert R. | Tamper resistant valve cap |
US6102064A (en) * | 1998-09-10 | 2000-08-15 | Robinson; Robert | Theft resistant valve cap |
US6062787A (en) * | 1998-12-22 | 2000-05-16 | Maddalena; Kris L. | Tamper resistant valve stem cap |
FR2961567A1 (en) * | 2010-06-22 | 2011-12-23 | Addax Srl | Anti-theft device for protecting nut in gas pipeline to prevent unauthorized operation of nut, has engagement unit passing to inner side of confinement housing and arranged to be in contact with operating unit of nut |
Also Published As
Publication number | Publication date |
---|---|
DE344933C (en) | 1921-12-02 |
FR527675A (en) | 1921-10-28 |
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