GB511508A - Improvements in or relating to earthing devices for use with electrical systems - Google Patents

Improvements in or relating to earthing devices for use with electrical systems

Info

Publication number
GB511508A
GB511508A GB510638A GB510638A GB511508A GB 511508 A GB511508 A GB 511508A GB 510638 A GB510638 A GB 510638A GB 510638 A GB510638 A GB 510638A GB 511508 A GB511508 A GB 511508A
Authority
GB
United Kingdom
Prior art keywords
ribs
collar
rod
sides
edges
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
GB510638A
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.)
JOHN STARLING
London Electric Wire Company and Smiths Ltd
Original Assignee
JOHN STARLING
London Electric Wire Company and Smiths Ltd
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 JOHN STARLING, London Electric Wire Company and Smiths Ltd filed Critical JOHN STARLING
Priority to GB510638A priority Critical patent/GB511508A/en
Publication of GB511508A publication Critical patent/GB511508A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H01R4/203—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
    • H01R4/206—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

511,508. Earth-rods. LONDON ELECTRIC WIRE CO. & SMITHS, Ltd., and STARLING, J. Feb. 18, 1938, No. 5106. [Class 36] [Also in Group XXII] To prevent buckling and distortion of the upper end of an earthing device in the form of a ribbed rod, such as the rods described in Specifications 423,385 and 430,040 a reinforcing means which tightly engages both the sides and the edges of the ribs is provided on the end of the rod, said reinforcing means consisting of, or comprising, a metal collar, preferably of mild steel, which is fitted over the rod and then forced into close engagement with the ribs. The collar may form a cap for the rod. As shown in Fig. 2, the reinforcing means comprises an internally threaded collar 2 and high carbon steel pins 4, which latter are driven into the spaces between the collar and the ribs of the rod 1 so as tightly to engage the sides of the ribs and also to distort the collar so that the screw-threads thereof bite into the edges of the ribs. Fig. 4 shows a modified construction wherein the pins are dispensed with and the collar is swaged around the sides of the ribs so that the screw-threaded surface of the collar bites into both the sides and edges of the ribs. In a further construction an unthreaded collar is swaged around the ribs, in a similar manner to that shown in Fig. 4, and tightly secured thereto by crimping.
GB510638A 1938-02-18 1938-02-18 Improvements in or relating to earthing devices for use with electrical systems Expired GB511508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB510638A GB511508A (en) 1938-02-18 1938-02-18 Improvements in or relating to earthing devices for use with electrical systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB510638A GB511508A (en) 1938-02-18 1938-02-18 Improvements in or relating to earthing devices for use with electrical systems

Publications (1)

Publication Number Publication Date
GB511508A true GB511508A (en) 1939-08-21

Family

ID=9789830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB510638A Expired GB511508A (en) 1938-02-18 1938-02-18 Improvements in or relating to earthing devices for use with electrical systems

Country Status (1)

Country Link
GB (1) GB511508A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476920A1 (en) * 1980-02-25 1981-08-28 Graipin Raymond Lightning conductor stake - has fluted walls inscribing circle proportioned for optimum buckling strength and may be extended by end to end joining
EP3651294A1 (en) * 2018-11-07 2020-05-13 Betak SA Multilayer earthing electrode (rods) and manufacturing process therefore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476920A1 (en) * 1980-02-25 1981-08-28 Graipin Raymond Lightning conductor stake - has fluted walls inscribing circle proportioned for optimum buckling strength and may be extended by end to end joining
EP3651294A1 (en) * 2018-11-07 2020-05-13 Betak SA Multilayer earthing electrode (rods) and manufacturing process therefore

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