GB2139724A - Earthing plumbing - Google Patents

Earthing plumbing Download PDF

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Publication number
GB2139724A
GB2139724A GB08313013A GB8313013A GB2139724A GB 2139724 A GB2139724 A GB 2139724A GB 08313013 A GB08313013 A GB 08313013A GB 8313013 A GB8313013 A GB 8313013A GB 2139724 A GB2139724 A GB 2139724A
Authority
GB
United Kingdom
Prior art keywords
plumbing
termination
teepiece
secured
offset
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.)
Withdrawn
Application number
GB08313013A
Other versions
GB8313013D0 (en
Inventor
David Corney
Thomas Edwin Sadler
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.)
TRIFLOW Ltd
Original Assignee
TRIFLOW 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 TRIFLOW Ltd filed Critical TRIFLOW Ltd
Priority to GB08313013A priority Critical patent/GB2139724A/en
Publication of GB8313013D0 publication Critical patent/GB8313013D0/en
Publication of GB2139724A publication Critical patent/GB2139724A/en
Withdrawn legal-status Critical Current

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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
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulating Bodies (AREA)

Abstract

Plumbing is earthed by clamping an earth wire 26 by means of a clamping screw 20 in a transverse passage 18 of a cylindrical brass body 14 soldered into the offset 16 of a teepiece 10 incorporated in the plumbing. <IMAGE>

Description

SPECIFICATION Earthing plumbing In the course of installing electrical services in domestic and commercial buildings, it is usually required to earth any plumbing in the building. Under a protective multiple earth system several earthing connections are required in a single plumbing installation.
Such connections are commonly effected by making use of a so-called earth clamp, for example meeting British Standard 951,which is secured on to a pipe at a convenient point. However, such a clamp is a relatively expensive item and, furthermore, careful fitting is required if a reliable electrical connection is to be made; it may be necessary to clean the pipe before fitting the clamp, to ensure that reliable electrical contact is made.
It is an object of the present invention to provide an improved method of earthing plumbing.
In one of its aspects the invention provides a method of providing an electrical earthing termination in plumbing in which ateepiecewhich hastermination-providing means secured to its offset is incorporated in the plumbing.
By a "teepiece" is meant a short pipe fitting adapted to be used to connecttwo pipes, arranged end-to-end, and comprising a shortoffsetto enable connection of a branch pipe.
Since plumbing is very commonly being installed at much the same time as electrical services, for example in new buildings, it would often be no inconvenience to make special provision in the plumbing for earthing connections. More particularly, since short straight connectorswould in the normal courseofevents be used in various places in a plumbing installation, for example adjacent appliances, it need benotroubleto install teepieces, instead of plain straight connectors, for provision of as many earthing terminations as required.
Preferably, standard teepieces (e.g. in accordance with British Standard 864) are used in performance of the invention. The termination-providing means may be arranged to be secured to the offset in a similar mannerto that in which a branch pipe would otherwise be secured, complementary portions of said means and said offset becoming secured together. To that end said means may comprise a cylindrical portion which is adapted to be soldered into the offset, but alternatively said means could be suitably arranged for a compression fitting teepiece.
Where the teepiece is of copper, at least said cylindrical portion of said means may be of brass. In a simple preferred arrangement, the termination-pro- viding means comprises a transversely-extending passage and an axially-extending clamping screw arranged to clamp an electrical lead in the passage.
In another of its aspects the invention provides apparatus suitable for use in a method as set out in the last preceding paragraph butthree comprising a teepiece to be incorporated in the plumbing and termination-providing means comprising a portion which is adapted to be secured to a complementary portion of the offset of the teepiece.
In yet another of its aspects the invention provides termination-providing means suitablefor use in a method as set out in the last preceding paragraph but four, said means comprising a portion which is adapted to be secured to a complementary portion of the offset of a standard teepiece.
There now follows a detailed description, to be read with reference to the accompanying drawings, of earthing apparatus which illustrates the present invention bythewayofexample.
In the accompanying drawings: Figure 1 is an axial section through the installed apparatus; and Figure 2is a view in section on the line ll-ll of Figure 1.
The illustrative apparatus comprises a copper capillaryteepiece 10 in accordance with British Standard 864 Part 2:1971.
The apparatus also comprisestermination-provid- ing means 12 comprising a cylindrical body 14 of brass which is a sliding fit in the offset 16 oftheteepiece. A diametrically-extending passage 18 extends right through the body 14, and an axially-extending clamping screw 20 extends from an outer end ofthe body through a tapped hole in the body into the passage 18.
In use of the apparatus, to provide an electrical earthing termination in plumbing,the cylindrical body 14 is secured into the complementary portion of the offset 1 6 of the teepiece 10 by soldering, in a similar mannerto that in which a branch pipe would otherwise be secured. The body, soldered in place, closes the offset. The teepiece is incorporated into the plumbing, to connecttwo pipes 22 and 24, either before or after the body 14 is secured in the offset. A 16 mm2 copper earth wire 26 is clamped securely in the passage 18 by means of the screw 20.
1. A method of providing an electrical earthing termination in plumbing in which a teepiece which has termination-providing means secured to its offset is incorporated in the plumbing.
2. A method according to claim 1 in which the termination-providing means comprises a cylindrical portionsecuredintheoffestinthemannerofa branch pipe.
3. A method according to claim 2 in which the teepiece is of copper and at least the cylindrical portion ofthetermination-providing means is of brass and the two are secured together by soldering.
4. A method according to any one of claims 1 to 3 in which the termination-providing means comprises a transversely-extending passage and an axiallyextending clamping screw which is arranged to clamp an electrical lead in the passage.
5. A method of providing an electrical earthing termination in plumbing substantially as hereinbefore described with reference to the accompanying draw The drawing(s) originally filed were informal and the print here reproduced is taken from a later filed formal copy.
The claims were filed later than the filing date within the period prescribed by Rule 25(1) of the Patents Rules 1982.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Earthing plumbing In the course of installing electrical services in domestic and commercial buildings, it is usually required to earth any plumbing in the building. Under a protective multiple earth system several earthing connections are required in a single plumbing installation. Such connections are commonly effected by making use of a so-called earth clamp, for example meeting British Standard 951,which is secured on to a pipe at a convenient point. However, such a clamp is a relatively expensive item and, furthermore, careful fitting is required if a reliable electrical connection is to be made; it may be necessary to clean the pipe before fitting the clamp, to ensure that reliable electrical contact is made. It is an object of the present invention to provide an improved method of earthing plumbing. In one of its aspects the invention provides a method of providing an electrical earthing termination in plumbing in which ateepiecewhich hastermination-providing means secured to its offset is incorporated in the plumbing. By a "teepiece" is meant a short pipe fitting adapted to be used to connecttwo pipes, arranged end-to-end, and comprising a shortoffsetto enable connection of a branch pipe. Since plumbing is very commonly being installed at much the same time as electrical services, for example in new buildings, it would often be no inconvenience to make special provision in the plumbing for earthing connections. More particularly, since short straight connectorswould in the normal courseofevents be used in various places in a plumbing installation, for example adjacent appliances, it need benotroubleto install teepieces, instead of plain straight connectors, for provision of as many earthing terminations as required. Preferably, standard teepieces (e.g. in accordance with British Standard 864) are used in performance of the invention. The termination-providing means may be arranged to be secured to the offset in a similar mannerto that in which a branch pipe would otherwise be secured, complementary portions of said means and said offset becoming secured together. To that end said means may comprise a cylindrical portion which is adapted to be soldered into the offset, but alternatively said means could be suitably arranged for a compression fitting teepiece. Where the teepiece is of copper, at least said cylindrical portion of said means may be of brass. In a simple preferred arrangement, the termination-pro- viding means comprises a transversely-extending passage and an axially-extending clamping screw arranged to clamp an electrical lead in the passage. In another of its aspects the invention provides apparatus suitable for use in a method as set out in the last preceding paragraph butthree comprising a teepiece to be incorporated in the plumbing and termination-providing means comprising a portion which is adapted to be secured to a complementary portion of the offset of the teepiece. In yet another of its aspects the invention provides termination-providing means suitablefor use in a method as set out in the last preceding paragraph but four, said means comprising a portion which is adapted to be secured to a complementary portion of the offset of a standard teepiece. There now follows a detailed description, to be read with reference to the accompanying drawings, of earthing apparatus which illustrates the present invention bythewayofexample. In the accompanying drawings: Figure 1 is an axial section through the installed apparatus; and Figure 2is a view in section on the line ll-ll of Figure 1. The illustrative apparatus comprises a copper capillaryteepiece 10 in accordance with British Standard 864 Part 2:1971. The apparatus also comprisestermination-provid- ing means 12 comprising a cylindrical body 14 of brass which is a sliding fit in the offset 16 oftheteepiece. A diametrically-extending passage 18 extends right through the body 14, and an axially-extending clamping screw 20 extends from an outer end ofthe body through a tapped hole in the body into the passage 18. In use of the apparatus, to provide an electrical earthing termination in plumbing,the cylindrical body 14 is secured into the complementary portion of the offset 1 6 of the teepiece 10 by soldering, in a similar mannerto that in which a branch pipe would otherwise be secured. The body, soldered in place, closes the offset. The teepiece is incorporated into the plumbing, to connecttwo pipes 22 and 24, either before or after the body 14 is secured in the offset. A 16 mm2 copper earth wire 26 is clamped securely in the passage 18 by means of the screw 20. CLAIMS
1. A method of providing an electrical earthing termination in plumbing in which a teepiece which has termination-providing means secured to its offset is incorporated in the plumbing.
2. A method according to claim 1 in which the termination-providing means comprises a cylindrical portionsecuredintheoffestinthemannerofa branch pipe.
3. A method according to claim 2 in which the teepiece is of copper and at least the cylindrical portion ofthetermination-providing means is of brass and the two are secured together by soldering.
4. A method according to any one of claims 1 to 3 in which the termination-providing means comprises a transversely-extending passage and an axiallyextending clamping screw which is arranged to clamp an electrical lead in the passage.
5. A method of providing an electrical earthing termination in plumbing substantially as hereinbefore described with reference to the accompanying draw The drawing(s) originally filed were informal and the print here reproduced is taken from a later filed formal copy.
The claims were filed later than the filing date within the period prescribed by Rule 25(1) of the Patents Rules 1982. ings.
6. Apparatus suitable for use in a method according to claim 1 comprising a teepiece to be incorporated in the plumbing and termination-providing means comprising a portion which is adapted to be secured to a complementary portion of the offset of the teepiece.
7. Apparatus according to claim 6 in which the termination-providing means comprises a cylindrical portion which is adapted to be secured in the offset in the manner of a branch pipe.
8. Apparatus according to either of claims 6 and 7 in which the teepiece is of copper and at least the cylindrical portion ofthetermination-providing means is of brass.
9. Apparatus according to any one of claims 6,7 and 8 in which the termination-providing means comprises a transversely-extending passage and an axially-extending clamping screwwhich is arranged to clamp an electrical lead in the passage.
10. Apparatus suitable for use in a method according to claim 1 comprising termination-providing means substantially as hereinbefore described with reference to the accompanying drawings.
11. Apparatus according to claim 10 comprising also a teepiece into the offset of which the termination-providing means is adapted to be secured in the manner of a branch pipe.
GB08313013A 1983-05-11 1983-05-11 Earthing plumbing Withdrawn GB2139724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08313013A GB2139724A (en) 1983-05-11 1983-05-11 Earthing plumbing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08313013A GB2139724A (en) 1983-05-11 1983-05-11 Earthing plumbing

Publications (2)

Publication Number Publication Date
GB8313013D0 GB8313013D0 (en) 1983-06-15
GB2139724A true GB2139724A (en) 1984-11-14

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Family Applications (1)

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Country Status (1)

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GB (1) GB2139724A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306170A (en) * 1993-07-21 1994-04-26 Pacomex Industries, Inc. Electrical pipe fitting with integral grounding fixture
US5480311A (en) * 1994-07-11 1996-01-02 Pacomex Co. Ltd. Electrical pipe fitting with integral grounding fixture
WO2000042345A1 (en) * 1999-01-11 2000-07-20 Kovacs Peter Equipotential equipment to be connected to networks, especially to pipeline systems
US7575447B2 (en) * 2006-10-13 2009-08-18 Airbus Deutschland Gmbh Arrangement for connection of pipes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1358861A (en) * 1972-02-03 1974-07-03 Barton Conduits Ltd Joint structures
GB1387509A (en) * 1972-07-31 1975-03-19 Ciccolallo G System for assembling pipes by means of couplings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1358861A (en) * 1972-02-03 1974-07-03 Barton Conduits Ltd Joint structures
GB1387509A (en) * 1972-07-31 1975-03-19 Ciccolallo G System for assembling pipes by means of couplings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306170A (en) * 1993-07-21 1994-04-26 Pacomex Industries, Inc. Electrical pipe fitting with integral grounding fixture
US5480311A (en) * 1994-07-11 1996-01-02 Pacomex Co. Ltd. Electrical pipe fitting with integral grounding fixture
WO2000042345A1 (en) * 1999-01-11 2000-07-20 Kovacs Peter Equipotential equipment to be connected to networks, especially to pipeline systems
US7575447B2 (en) * 2006-10-13 2009-08-18 Airbus Deutschland Gmbh Arrangement for connection of pipes

Also Published As

Publication number Publication date
GB8313013D0 (en) 1983-06-15

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)