GB660919A - Improvements in or relating to ducting for electric conductors - Google Patents

Improvements in or relating to ducting for electric conductors

Info

Publication number
GB660919A
GB660919A GB948449A GB948449A GB660919A GB 660919 A GB660919 A GB 660919A GB 948449 A GB948449 A GB 948449A GB 948449 A GB948449 A GB 948449A GB 660919 A GB660919 A GB 660919A
Authority
GB
United Kingdom
Prior art keywords
base
holes
screws
channel member
lengths
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
GB948449A
Inventor
Geoffrey Charles Bishop
Harry Arthur Harding
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.)
PANEL FITTINGS Co Ltd
Original Assignee
PANEL FITTINGS Co 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 PANEL FITTINGS Co Ltd filed Critical PANEL FITTINGS Co Ltd
Priority to GB948449A priority Critical patent/GB660919A/en
Publication of GB660919A publication Critical patent/GB660919A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Patch Boards (AREA)

Abstract

660,919. Conduits. PANEL FITTINGS CO., Ltd. April 11, 1950 [April 7, 1949; Feb. 27, 1950], Nos. 9484/49 and 4950/50. Class 36. Lengths of ducting for electric conductors are joined together by a channel-member which, together with a backing plate, is telescoped into adjacent ends of two duct lengths, separating screws being passed through tapped holes in the channel member to engage with the surface of the backing-plate so as to separate these two parts and obtain frictional engagement between the channel member and the duct lengths. The ducts are preferably of rectangular crosssection and comprise base 5, side walls 3, 4 and flanges 1, 2. The channel member comprises side walls 6, 7 and a base 8 having the same area as backing plate 9, which is placed under the base 8 so that tapped holes 10, 11 therein register with tapped holes 16, 17 in the plate 9. Additional tapped holes 13, 14 are provided in the base 8. The channel member and backing plate are positioned in the ends of adjacent ducts and screws are inserted in the holes. These through-holes 13, 14 separate the plate 9 from the base 8, forming a tight frictional engagement between the channel member and the duct lengths. The screws passing through holes 10, 16 and 11, 17 press into the base 5 of the ducts and make electrical contact between the parts. In an alternative arrangement (Fig. 5), four contact screws 24, 25 and four separating screws 28, 29 are provided, two of each lying on either side of the butt joint 26 between adjacent duct lengths. The channel members may be of L, T or other shape to join duct lengths which do not lie in a straight line. The open side of the duct may be closed by a cover member carrying spring-clips which engage under the flanges 1, 2.
GB948449A 1949-04-07 1949-04-07 Improvements in or relating to ducting for electric conductors Expired GB660919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB948449A GB660919A (en) 1949-04-07 1949-04-07 Improvements in or relating to ducting for electric conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB948449A GB660919A (en) 1949-04-07 1949-04-07 Improvements in or relating to ducting for electric conductors

Publications (1)

Publication Number Publication Date
GB660919A true GB660919A (en) 1951-11-14

Family

ID=9872847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB948449A Expired GB660919A (en) 1949-04-07 1949-04-07 Improvements in or relating to ducting for electric conductors

Country Status (1)

Country Link
GB (1) GB660919A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913513A (en) * 1953-12-24 1959-11-17 Westinghouse Electric Corp Bus duct for electrical distribution systems
US2937227A (en) * 1957-06-14 1960-05-17 Wiremold Co Grounding clamp and connector for abutting wire ducts
US3091657A (en) * 1962-11-14 1963-05-28 Flexiflor Electrical Systems I Wiring ducts
US3161722A (en) * 1963-02-13 1964-12-15 Otis Elevator Co Ready access wiring duct
US3351699A (en) * 1965-03-19 1967-11-07 Danzer Metal Works Co Raceway for electrical cables and wires adapted to retain rf energy
GB2315372A (en) * 1996-07-16 1998-01-28 Electrix Trunking connection with internal fastenings
EP1580857A1 (en) * 2004-03-22 2005-09-28 Legrand Electric Limited Cable trunking and ducting

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913513A (en) * 1953-12-24 1959-11-17 Westinghouse Electric Corp Bus duct for electrical distribution systems
US2937227A (en) * 1957-06-14 1960-05-17 Wiremold Co Grounding clamp and connector for abutting wire ducts
US3091657A (en) * 1962-11-14 1963-05-28 Flexiflor Electrical Systems I Wiring ducts
US3161722A (en) * 1963-02-13 1964-12-15 Otis Elevator Co Ready access wiring duct
US3351699A (en) * 1965-03-19 1967-11-07 Danzer Metal Works Co Raceway for electrical cables and wires adapted to retain rf energy
GB2315372A (en) * 1996-07-16 1998-01-28 Electrix Trunking connection with internal fastenings
GB2315372B (en) * 1996-07-16 2000-08-30 Electrix Coupled connection for trunking and the like
EP1580857A1 (en) * 2004-03-22 2005-09-28 Legrand Electric Limited Cable trunking and ducting

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